HOTWIREr M/SDSL and HDSL2
TERMINATION UNITS
MODELS 8747, 8777, AND 8779
USER’S GUIDE
Document No. 8700-A2-GB20-00
April 2000
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Contents
About This Guide
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Document Purpose and Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . vii
Document Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Product-Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
1
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About the Hotwire 8747, 8777, and 8779 Termination Units
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M/SDSL and HDSL2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Hotwire 87xx Termination Unit Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
SNMP Management Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Management Information Base (MIB) Support . . . . . . . . . . . . . . . . . . . 1-4
SNMP Trap Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Using the Asynchronous Terminal Interface
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User Interface Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Management Serial Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Logging In to the Hotwire DSLAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Initiating an ATI Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Screen Work Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Navigating the Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Keyboard Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Screen Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Switching Between Screen Work Areas . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Ending an ATI Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Exiting From the DSLAM Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
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Contents
3
Initial Startup and Configuration
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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Entering Identity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Configuring the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Accessing and Displaying Configuration Options . . . . . . . . . . . . . . . . . . . . 3-4
Configuration Edit/Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Saving Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Restoring Access to the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Resetting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Disabling AutoRate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Resetting AutoRate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
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Cross-Connecting Ports
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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Determining the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Setting the Cross-Connect Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Assigning Time Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
IP Addressing
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Selecting an IP Addressing Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Configurations Not Running IP Conservative Software . . . . . . . . . . . 5-1
All Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
IP Addressing Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
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Security
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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
ATI Access Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Creating a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Deleting a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Controlling SNMP Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Assigning SNMP Community Names and Access Types . . . . . . . . . . 6-5
Limiting SNMP Access through the IP Addresses of the Managers . 6-5
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Contents
7
Monitoring and Troubleshooting
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What to Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Viewing System and Test Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Health and Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Self-Test Results Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Test Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Device Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Viewing Network Error Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Viewing Network Performance Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Viewing DSX-1 Performance Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Viewing G.703 Performance Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Viewing LED Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Changing the Meaning of the PORTS LEDs . . . . . . . . . . . . . . . . . . . . . . . . 7-20
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
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Testing
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Accessing the Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Running Network Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Network Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Repeater Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
DTE Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Remote Send Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Send and Monitor 511 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Device Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Ending an Active Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Telco-Initiated Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Telco-Initiated Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Telco-Initiated Payload Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
Telco-Initiated Remote Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
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Transferring Code and Configurations Using TFTP
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Download Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Applying the Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Configuration Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
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Contents
A Configuration Options
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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Network Interface Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
DSX-1 Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
G.703 Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Copy Ports Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-13
Cross-Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-17
Set Cross-Connect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-18
Assign Time Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-20
Management and Communication Options Menu . . . . . . . . . . . . . . . . . . . . A-23
Telnet Session Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-23
General SNMP Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . A-25
SNMP NMS Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-27
SNMP Traps Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-29
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B Standards Compliance for SNMP Traps
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SNMP Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
ifIndex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
warmStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
authenticationFailure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
linkUp and linkDown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Enterprise-Specific Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
C Connector Pin Assignments
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Hotwire Termination Unit Front Panel 50-pin DTE Connector Pinouts . . C-1
Model 8610, 8810, and 8820 DSLAM Telco 50-pin Connector Pinouts . C-3
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Contents
D Technical Specifications
E Cross-Connection Worksheets
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Using the Worksheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
Port Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
DSX-1 Time Slot Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3
G.703 Time Slot Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-11
Glossary
Index
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About This Guide
Document Purpose and Intended Audience
This guide contains information needed to set up, configure, and operate Hotwire
Models 8747, 8777, and 8779 Multirate Symmetric Digital Subscriber Line
(M/SDSL) and High-bit-rate DSL second generation (HDSL2) Termination Units,
and is intended for installers and operators.
Document Summary
Section
Description
Chapter 1
Chapter 2
About the Hotwire 8747, 8777, and 8779 Termination Units.
Describes the Hotwire Termination Units’ features and
capabilities.
Using the Asynchronous Terminal Interface. Provides
instructions for accessing the user interface and navigating
the screens.
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Initial Startup and Configuration. Provides instructions for
configuring the unit.
Cross-Connecting Ports. Provides instructions for
cross-connecting the time slots of the DSL and DTE ports.
IP Addressing. Provides IP addressing requirements and
examples.
Security. Presents procedures for creating a login, setting
the effective access levels, and controlling SNMP access.
Monitoring and Troubleshooting. Describes using the LEDs,
status messages, and network statistics to monitor the unit
and diagnose problems.
Chapter 8
Testing. Provides instructions for running network, DSX-1,
and G.703 tests.
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About This Guide
Section
Description
Chapter 9
Transferring Code and Configurations Using TFTP. Shows
how to upload and download firmware and configuration
files.
Appendix A
Appendix B
Appendix C
Appendix D
Configuration Options. Contains all configuration options,
default settings, and possible settings.
Standards Compliance for SNMP Traps. Contains SNMP
trap compliance information.
Connector Pin Assignments. Lists the pin assignments for
the front panel DTE connector.
Technical Specifications. Contains physical and regulatory
specifications, network and port interfaces, power
consumption values, and accessory part numbers.
Appendix E
Cross-Connection Worksheets. Contains worksheets to help
plan and configure the cross-connection of DTE and DSL
ports.
Glossary
Index
Defines acronyms and terms used in this document.
Lists key terms, acronyms, concepts, and sections in
alphabetical order.
Product-Related Documents
Document Number
Document Title
7970-A2-GB20
Hotwire M/SDSL, M/HDSL, and HDSL2 Standalone
Termination Units, Models 7944, 7945, 7974, 7975,
7976, 7984, 7985, and 7986, User’s Guide
8000-A2-GB22
8000-A2-GB29
Hotwire Management Communications Controller
(MCC) Card, IP Conservative, User’s Guide
Hotwire Management Communications Controller
(MCC) Card User’s Guide
8610-A2-GN10
8810-A2-GN11
8820-A2-GN20
Hotwire 8610 DSLAM Installation Instructions
Hotwire 8810 DSLAM Installation Instructions
Hotwire 8820 GranDSLAM Installation Guide
Contact your sales or service representative to order additional product
documentation.
Paradyne documents are also available on the World Wide Web at
www.paradyne.com. Select Library → Technical Manuals.
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About the Hotwire 8747, 8777, and
8779 Termination Units
1
M/SDSL and HDSL2 Overview
Hotwirer Multirate Symmetric Digital Subscriber Line (M/SDSL) products
maximize customer service areas by varying the DSL line rate. This ensures
symmetric DSL connectivity over a wide range of telephone line distances and
transmission line qualities. Hotwire M/SDSL products transmit data over
14,000 feet (4.6 km) at rates up to 2.048 Mbps.
Hotwire High-bit-rate DSL second generation (HDSL2) products transmit data up
to 12,000 feet (3.9 km) at up to 1.544 Mbps.
Hotwire products support autorate. Units first synchronize to the highest line rate
that the 2-wire loop supports, and then automatically configure to the highest
multiple of 64 kbps supported by that line rate. Eight line rates are available. At all
rates, a 16 kbps management channel is available, which enables functions such
as firmware downloads to remote units. Units can also be configured manually to
full or fractional T1 or E1 rates.
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About the Hotwire 8747, 8777, and 8779 Termination Units
Hotwire 87xx Termination Unit Features
The Hotwire 87xx Termination Unit is a circuit board mounted in a Hotwire 8610
or 8810 Digital Subscriber Line Access Multiplexer (DSLAM), or 8820
GranDSLAM, and used to transport signals at high speeds over a twisted-pair
connection.
Model . . .
8747
Has eight . . .
HDSL2 ports
M/SDSL ports
M/SDSL ports
And eight . . .
DSX-1 ports
DSX-1 ports
G.703 ports
8777
8779
Hotwire 8747, 8777, and 8779 Termination Units have these standard features:
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Cross-Connection Capability. Any DSL port and time slot can be connected
to any DTE port and time slot.
Embedded Operations Channel (EOC). Provides remote management via
SNMP or Telnet session capability over the DSL network.
Asynchronous Terminal Interface (ATI). Provides a menu-driven
VT100-compatible terminal interface for configuring and managing the unit
locally or remotely by Telnet session.
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Local Management. Provides local management using the DSLAM
management card with a:
— Terminal or PC via the Management Serial port of the DSLAM
— NMS connection through the 10BaseT port
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Remote Management. Provides remote management:
— Out-of-band, using an external modem through the Management Serial
port of the DSLAM
— Via Telnet over the EOC
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Alarm Indication. Activates front panel LEDs.
Diagnostics. Provides the capability to diagnose device and network
problems and perform tests, including digital loopbacks, pattern tests, and
self-test.
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Device and Test Monitoring. Provides the capability of tracking and
evaluating the unit’s operation, including health and status, and error-rate
monitoring.
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AbouttheHotwire8747,8777,and8779TerminationUnits
Network Configuration
Figure 1-1 shows a T1 network application using a Hotwire 87xx Termination Unit
for access concentration in a central office (CO). A frame relay switch and a
router are connected, through the termination unit, to partner units on the
customer premises (CP) supporting a T1 host or router, and frame relay
encapsulated or unframed data.
Customer Premises (CP)
DSX-1
T1 Host
CO Site
(Frame Relay
7974
Frame
Relay
Encapsulated
Data)
Switch
DSX-1
DSX-1
DSX-1
Router
(Frame Relay
Encapsulated
Data)
Router
DSX-1
1.544 Mb
7974
EIA-530
Router
7975
87xx Termination Unit
in 8600 Series DSLAM
99-16414-01
Figure 1-1. Sample CO-to-CP Configuration
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About the Hotwire 8747, 8777, and 8779 Termination Units
SNMP Management Capabilities
Hotwire 87xx Termination Units support SNMP Version 1, and can be managed
by any industry-standard SNMP manager and accessed using SNMP by external
SNMP managers.
Management Information Base (MIB) Support
For a detailed description of supported MIBs, visit Paradyne’s Web site at
www.paradyne.com. The following MIBs are supported:
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MIB II (RFC 1213 and RFC 1573) – Defines the general objects for use with
a network management protocol in TCP/IP internets and provides general
information about the unit. MIB II is backward-compatible with MIB I.
DS1/E1 MIB (RFC 1406) – Reports the performance status of the DSX-1 or
G.703 interface and supports the features found on the DSX-1 or G.703
Performance Statistics screen.
Paradyne Enterprise MIB – Supports configuration, status, statistics, and
tests.
SNMP Trap Support
The Hotwire 87xx Termination Unit supports SNMP traps as shown in
Appendix B, Standards Compliance for SNMP Traps.
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Using the Asynchronous Terminal
Interface
2
User Interface Access
You can communicate with the asynchronous terminal interface (ATI) using one
of the following methods:
H
H
H
Direct connection through the Management Serial port of the DSLAM (locally
or via an external modem).
Telnet session using a Network Management System (NMS) connected to a
LAN/WAN port on the DSLAM.
Telnet session through the Embedded Operations Channel (EOC).
NOTE:
Only one asynchronous terminal interface session can be active at a time,
and another user’s session cannot be forced to end. To automatically log out
a user due to inactivity, enable the Inactivity Timeout option (see Table A-11,
Telnet Session Options, in Appendix A, Configuration Options).
Security can limit ATI access several ways. To set up security or a login ID, refer
to Chapter 6, Security.
Management Serial Port Settings
Ensure that the device you connect communicates using these settings:
H
H
H
H
Data rate set to 9.6 kbps.
Character length set to 8.
Parity set to None.
Stop Bits set to 1.
Refer to the installation document for your DSLAM.
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Using the Asynchronous Terminal Interface
Logging In to the Hotwire DSLAM
You can log in to the Hotwire DSLAM system using either a local
VT100-compatible terminal or a remote Telnet connection.
After you enter your user ID and password, the system displays the Hotwire
Chassis Main Menu. See your management card documentation for information
about selecting the unit from the card selection screen.
Initiating an ATI Session
The Main Menu screen is displayed on the screen unless a login ID and
password is required or the ATI is already in use.
If security is enabled on the Hotwire Termination Unit and you used Telnet to
access it directly (you did not log in through the management card), the system
prompts you for a login ID and password.
Login
Slot: 4
Model: 87xx
LOGIN
Login ID:
Enter Password:
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions Exit
If you enter an invalid login ID and password after three attempts, the Telnet
session closes or the terminal connection returns to an idle state. Refer to
Chapter 6, Security.
If the ATI is already in use, the message connection refused is sent to a
terminal attempting Telnet access.
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Using the Asynchronous Terminal Interface
After you enter a valid login ID and password, the Main Menu appears.
main
Access Level: Administrator
Slot: 4
Model 87xx
MAIN MENU
Status
Test
Configuration
Control
Screen
Area
Screen
Function
Keys
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions Exit
Area
Entry to all of the termination unit’s tasks begins at the Main Menu screen.
Select . . .
To . . .
Status
View system status, diagnostic test results, statistics, LEDs, and device
identity information.
Test
Select, start, stop and cancel tests for the unit’s interfaces.
Configuration Display and edit the configuration options.
Control
Change the device identity, administer logins, download new firmware, or
initiate a power-up reset of the unit.
What appears on the screens depends on your:
H
H
Current configuration – How your unit is currently configured.
Effective security access level – An access level that is typically set by the
system administrator for each interface and each user.
H
Data selection criteria – What you entered in previous screens.
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Using the Asynchronous Terminal Interface
The following illustration shows the paths to the different ATI screens.
Main
Status
Test
Configuration
Control
System and
Test Status
Display
LEDs
Change Download Port
Reset
Network and Abort All
Identity Code LEDs Device
DSX-1/G.703
Test
Tests
Performance Identity
Statistics
Device
Test
Administer Apply Reset
Logins DownloadAutoRate
Network
Error
statistics
Network DSX-1/G.703
Performance Statistics
Statistics
Current Configuration Configuration Default Factory
Edit/Display Loader Configuration
Network DSX-1/ Copy System System Cross Management
G.703 Ports Options Clock Connect
and
Communication
Set Cross
Assign
Connect Mode Time Slots
Telnet General SNMP SNMP NMS SNMP
Session Management
Security
Traps
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Using the Asynchronous Terminal Interface
Screen Work Areas
There are two user work areas:
H
Screen area – This is the area above the dotted line that provides the menu
path, menus, and input fields.
The menu path appears as the first line on the screen. In this manual, the
menu path is presented as a menu selection sequence with the names of the
screens:
Main Menu → Configuration → Load Configuration From → Network
Interface Options
H
Screen function key area – This is the area below the dotted line that lists
function keys specific to the screen, field value choices, and system
messages.
Menu Path
main/config/network
Slot: 4
Model: 87xx
Port: 2
NETWORK INTERFACE OPTIONS
Port Status
Margin Threshold:
Enable
–3db
Excessive Error Rate Threshold: 1E–5
AutoRate:
Disable
DSL Line Rate:
1552 kbps
1536 kbps
0dB
Input
Fields
EIA-530 Payload Rate
Transmit Attenuation
Peer IP Address:
111.255.255.000 Clear
Circuit Identifier:
Clear
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
Select: 1E–4, 1E–5, 1E–6, 1E–7, 1E–8, 1E–9
MainMenu
Exit
Screen
Function
Keys
LOS at Net, Pt 1
System
Messages
Field Value
Choices
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Using the Asynchronous Terminal Interface
Navigating the Screens
You can navigate the screens by:
H
H
H
Using keyboard keys
Using screen function keys
Switching between the two screen work areas
Keyboard Keys
Use the following keyboard keys to navigate within the screen.
Press . . .
To . . .
Ctrl-a
Move cursor between the screen area and the screen function
keys area below the dotted line at the bottom of the screen.
Esc
Return to the previous screen.
Tab
Move cursor to the next field on the screen.
Move cursor to the previous field on the screen.
Backspace
Enter
Accept entry or display valid options on the last row of the screen
when pressed before entering data or after entering invalid data.
Ctrl-k
Tab backwards (move cursor one field to the left).
Select the next valid value for the field.
Spacebar
Delete (Del)
Up Arrow or Ctrl-u
Delete character that the cursor is on.
Move cursor up one field within a column on the same screen.
Down Arrow or Ctrl-d Move cursor down one field within a column on the same screen.
Right Arrow or Ctrl-f Move cursor one character to the right if in edit mode.
Left Arrow or Ctrl-b
Ctrl-l
Move cursor one character to the left if in edit mode.
Redraw the screen display, clearing information typed in but not
yet entered.
" Procedure
To make a menu or field selection:
1. Press the Tab key or the right arrow key to position the cursor on a menu or
field selection. Each selection is highlighted as you press the key to move the
cursor from position to position.
2. Press Enter. The selected menu or screen appears.
3. Continue Steps 1 and 2 until you reach the screen you want.
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Using the Asynchronous Terminal Interface
The current setting or value appears to the right of the field name. You can enter
information into a selected field by:
H
H
Typing in the first letter(s) of a field value or command.
Switching from the screen area to the screen function area below the dotted
line and selecting or entering the designated screen function key.
If a field is blank and the Field Values screen area displays valid selections, press
the spacebar and the first valid value for the field will appear. Continue pressing
the spacebar to scroll through other valid values.
Screen Function Keys
All screen function keys located below the dotted line operate the same way
(upper- or lowercase) throughout the screens.
For the screen
function . . .
Select . . . And press Enter to . . .
ClrFar
F or f
Clear far-end network statistics and refresh the screen.
ClrNear
ClrStats
Delete
Exit
N or n
S or s
L or l
Clear near-end network statistics and refresh the screen.
Clear DSX-1 statistics and refresh the screen.
Delete data.
E or e
M or m
N or n
D or d
U or u
R or r
S or s
Terminate the asynchronous terminal session.
Return to the Main Menu screen.
MainMenu
New
Enter new data.
PgDn
Display the next page, or group of entries.
Display the previous page, or group of entries.
Reset an active Monitor 511 test counter to zero.
Save information.
PgUp
ResetMon
Save
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Using the Asynchronous Terminal Interface
Switching Between Screen Work Areas
Select Ctrl-a to switch between the two screen work areas to perform all screen
functions.
" Procedure
To access the screen function area below the dotted line:
1. Press Ctrl-a to switch from the screen area to the screen function key area
below the dotted line.
2. Select either the function’s designated (underlined) character or press the
Tab key until you reach the desired function key.
Example:
To save the current options, type s or S (Save).
3. Press Enter. The function is performed.
4. To return to the screen area above the dotted line, press Ctrl-a again.
main/config/network
Slot: 4
Port: 2
Model: 87xx
NETWORK INTERFACE OPTIONS
Margin Threshold:
–3db
Excessive Error Rate Threshold: 1E–5
AutoRate:
DSL Line Rate:
Disable
1552
Circuit Identifier:
Clear
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
MainMenu
Exit
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Using the Asynchronous Terminal Interface
Ending an ATI Session
Use the Exit function key from any screen to terminate the session.
" Procedure
To end a session with the asynchronous terminal interface:
1. Press Ctrl-a to go to the screen function key area below the dotted line.
2. Save changes if required. A confirmation message appears if you have made
but not saved changes to your configuration.
3. Tab to Exit (or type e or E) and press Enter. If you have accessed the unit
through the management card, the Hotwire Chassis Card Selection menu
appears.
Exiting From the DSLAM Session
You can manually log out of the system or, after five minutes of inactivity, the
system will automatically log you out.
" Procedure
To manually exit from the Hotwire DSLAM system:
1. Return to the Hotwire Chassis Main Menu by selecting Exit from either the
Hotwire – MCC menu or the Hotwire – DSL menu.
The Hotwire Card Selection menu appears.
2. Press Ctrl-z.
The Hotwire Chassis Main Menu appears.
3. From the Hotwire Chassis Main Menu, select Logout.
The system exits from the current login session on the Hotwire DSLAM.
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Using the Asynchronous Terminal Interface
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Initial Startup and Configuration
3
Overview
This chapter provides instructions on how to access the system for the first time
and perform initial setup procedures. These procedures include:
H
Providing initial unit identity information or changing existing identity
information.
H
H
Accessing and displaying the current or factory default configuration options.
Modifying current configuration options using the Configuration Edit/Display
menu.
H
H
H
Saving your configuration option changes.
Restoring access to the user interface in the event it is lost.
Resetting the device.
This chapter also explains how to disable and reset AutoRate.
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Initial Startup and Configuration
Entering Identity Information
After accessing your unit for the first time, use the Change Identity screen to
determine SNMP administrative system information that will be displayed on the
Identity screen of the Status branch. To access the Card Identity screen, follow
this menu selection sequence:
Main Menu → Control → Change Identity
main/control/change_identity
Slot: 4
Model: 87xx
IDENTITY
Prez lllQJ98-001
System Location: Bldg. A412, 2nd Floor, Left cabinet
System Contact: L. Young 800-727-2396 pager 888-555-1212
System Name:
Clear
Clear
Clear
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
The three System entry fields are alphanumeric and provide 128 characters for
each field. The System entries appear on the Identity display as shown above.
The SNMP System entry fields are:
H
H
H
System Name: The general SNMP system name.
System Location: The physical location of the SNMP-managed device.
System Contact: Identification information, such as contact name, phone
number, or mailing address.
Valid entry values are any printable ASCII character. ASCII printable characters
include:
H
H
H
H
Numeric 0–9
Upper- or lowercase A–Z
Space
All ASCII symbols except the caret (^)
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Initial Startup and Configuration
" Procedure
To enter Change Identity screen information:
1. Position the cursor in the System Name field. Enter a name unique in your
network to identify the SNMP managed node (or unit)
The maximum length of System Name is 128 characters.
2. Position the cursor in the System Location field. Enter the physical location of
the unit.
The maximum length of System Location is 128 characters.
3. Position the cursor in the System Contact field. Enter the name and contact
information for the person responsible for the unit.
The maximum length of System Contact is 128 characters.
4. Press Ctrl-a to switch to the screen function key area below the dotted line.
5. Select Save and press Enter.
Configuring the Unit
Configuration option settings determine how the unit operates. Use the
Configuration branch of the asynchronous terminal interface menu to display or
change configuration option settings.
Configuration Options
The unit is shipped with factory settings in the Default Factory Configuration area.
You can find default information by:
H
H
Referring to Appendix A, Configuration Options.
Accessing the Configuration menu branch.
The unit has two sets of configuration option settings. The Current Configuration
matches the Default Factory Configuration until modified and saved by the user.
Configuration Option Area Description
Current Configuration
The unit’s active set of configuration options.
Default Factory Configuration A read-only configuration area containing the factory
default configuration options.
If the factory default settings do not support your network’s configuration,
customize the configuration options for your application.
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Initial Startup and Configuration
Accessing and Displaying Configuration Options
To display the configuration options, you must first load a configuration option set
into the edit area.
To load a configuration option set into the configuration edit area, follow this
menu selection sequence:
Main Menu → Configuration (Load Configuration From)
main/configuration
Slot: 4
Model: 87xx
LOAD CONFIGURATION FROM:
Current Configuration
Configuration Loader
Default Factory Configuration
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Make a selection by placing the cursor at your choice and pressing Enter.
If you select . . .
Then . . .
Current
Configuration
The selected configuration option set is loaded and the
Configuration Edit/Display menu screen appears.
Configuration
Loader
The Configuration Loader screen is displayed allowing you to
upload or download configurations from a TFTP server.
Default Factory
Configuration
The default factory configuration is loaded and the Configuration
Edit/Display menu screen appears.
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Initial Startup and Configuration
Configuration Edit/Display
The Configuration Edit/Display screen appears when the current, customer, or
default configuration is loaded and allows groups of configuration options to be
displayed. To access the Configuration Edit/Display screen, follow this menu
selection sequence:
Main Menu → Configuration → Current Configuration
– or –
Main Menu → Configuration → Default Factory Configuration
main/config/edit
Slot: 4
Model: 87xx
CONFIGURATION EDIT/DISPLAY
Network
DSX-1 | G.703
Copy Ports
System Options
System Clock
Cross-Connect
Management and Communication
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
Select . . .
Network
DSX-1
To Access the . . .
To Configure the . . .
Network Interface Options, Table A-1
DSX-1 Interface Options, Table A-4
DSL interface ports.
DSX-1 interface ports
(Models 8747 and 8777).
G.703
G.703 Interface Options, Table A-5
Copy Ports Options, Table A-6
G.703 interface ports
(Model 8779).
Copy Ports
DSL network and DTE
interface ports by copying
options from port to port.
System
Options
System Options, Table A-7
General system options of
the unit.
System Clock
System Clock Options, Table A-8
LTU system clock options.
Cross-Connect Cross-Connect Mode Options, Table A-9 DS1 and DS0
cross-connect ports.
Assign Time Slots Options, Table A-10
Telnet Session Options, Table A-11
Management
and
Communication
Management support of the
unit through SNMP and
Telnet.
General SNMP Management Options,
Table A-12
SNMP NMS Security Options,
Table A-13
SNMP Traps Options, Table A-14
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Initial Startup and Configuration
Saving Configuration Options
When changes are made to the configuration options through the Configuration
Edit/Display branch, the changes must be saved to take effect. Use the Save key
or Save Configuration screen.
" Procedure
To save configuration options changes:
1. Press Ctrl-a to switch to the screen function key area below the dotted line.
2. Select Save and press Enter.
NOTE:
When Exit is selected before Save, or Save has been selected from any
menu in the Configuration/Edit branch, a Save Configuration screen appears
requiring a Yes or No response.
main/config/saveprompt
Slot: 4
Model: 87xx
SAVE CONFIGURATION
Save Changes? No
WARNING:
An answer of “yes” will cause the system
to reset as if it had been powered off and on!
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
MainMenu
Exit
Command Complete
If the Telnet Session configuration option is changed, a message displays on the
Save Configuration screen warning that an answer of Yes will cause the Telnet
session to disconnect. Do not answer Yes unless you are prepared to disconnect.
If the HDSL Mode configuration option is changed, the Save Configuration screen
bears the warning that an answer of Yes will cause the system to reset. Do not
answer Yes unless you are prepared to reset.
If you select . . .
Then . . .
Yes
No
The configuration is saved.
The Main Menu appears and changes are not saved.
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Initial Startup and Configuration
Restoring Access to the User Interface
Improper configuration of the unit could render the user interface inaccessible. If
this occurs, access can be restored using the management card of the DSLAM.
" Procedure
To reset the DSL Card using the management card of the DSLAM:
1. Select Configuration → DSL Cards → Reset Slot.
2. Enter DSLnn, where nn is the slot number for the DSL card you wish to reset.
3. Enter Reset.
4. Enter Y if you want to clear NVRAM also, otherwise enter N.
5. Enter Y at the prompt to confirm.
NOTE:
When you enter Y, all data connectivity is interrupted.
Resetting the Device
If the user interface is functional, and you would like to reset the card without
removing the card from the DSLAM, follow this procedure.
" Procedure
To reset the card using the Control branch:
1. From the Main Menu, select Control → Reset Device.
2. The message Are you sure?appears.
3. Enter Yes.
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Initial Startup and Configuration
Disabling AutoRate
The AutoRate function is controlled from the Network Interface Options screen
and allows you to enable or disable AutoRate. The AutoRate option is only
available if the unit is configured as an LTU. To access the Network Interface
screen, follow this menu selection sequence:
Main Menu → Configuration → Network
main/config/network
Slot: 4
Port: 1
Model: 87xx
NETWORK INTERFACE OPTIONS
Margin Threshold:
–3db
Excessive Error Rate Threshold: 1E–5
AutoRate
Max DSL AutoRate
Enable
144
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
" Procedure
The AutoRate option defaults to Enable. To disable AutoRate:
1. Position the cursor in the AutoRate field and press the spacebar.
The AutoRate field toggles to Disable and the DSL Line Rate field appears.
2. Enter a DSL Line Rate and press Enter.
Resetting AutoRate
The Reset AutoRate function of the Control branch causes the unit to repeat the
AutoRate sequence. The unit attempts to establish the DSL link at the highest
rate (or the value of DSL Line Rate, which represents the AutoRate ceiling when
AutoRate is enabled). If the link fails, the next lower rate is tried until the link is
established.
To access the Reset AutoRate screen, follow this menu selection sequence:
Main Menu → Control → Reset AutoRate
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Cross-Connecting Ports
4
Overview
Configuration of the cross-connections consists of the following steps:
- Determine how the ports will be connected and configured.
- On the Network Interface Options screen, enable if necessary the DSL ports
that will be in the cross-connection. The ports are enabled by default.
- On the DSX-1 or G.703 Interface Options screen, enable the DSX-1 or
G.703 ports that will be in the cross-connection. For G.703, specify whether
Time Slot 16 is used for signaling (voice mode).
- On the System Clock screen, configure the system clock.
- On the Cross-Connect Mode screen:
— Define all DS1 Bypass ports
— Define all DS1 Cross-Connect ports
— Define all DS0 Cross-Connect ports
- On the Assign Time Slots screen, configure the DS0 cross-connections.
This chapter describes the use of the Cross-Connect Mode and Assign Time
Slots screens. See Appendix A, Configuration Options, for information about
configuration options presented on the other screens.
Examples in this chapter show screens for DSX-1 models. The principles of
cross-connection are the same for G.703.
IMPORTANT:
All DSL time slots are available for cross-connect regardless of DSL
line rate, but all time slots are available for data transport only if the
DSL line rate is the full rate (1552 for DSX-1 or 2064 for G.703).
Configure only the time slots intended for use.
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Cross-Connecting Ports
Determining the Configuration
The Hotwire cross-connect system allows you to connect the DSX-1 or G.703
ports to the DSL ports in a variety of ways:
H
H
DS1 Bypass mode – The entire DSX-1 or G.703 interface is connected to
the DSL interface.
DS1 Cross-Connect mode – The entire DSX-1 or G.703 interface is
connected to the DSL interface through cross-connect circuitry. Ports can be
switched through software.
H
DS0 Cross-Connect mode – Any time slot of any DSX-1 or G.703 interface
can be connected to any time slot of any DSL interface. Time slots can be
individually allocated for voice or data.
The example in this chapter shows a DS0 cross-connection between DSX-1
Ports 1 and 2. DSX-1 Port 1 is dedicated to voice and Port 2 to data.
Port 1
DSX-1
G.703
X
❏❏Voice
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
DSL
Cross-Connect
❏❏Data
DS0
Port 2
DSX-1
G.703
❏❏Voice
DSL
DSL
DSL
DSL
DSL
DSL
DSL
X
❏❏Data
Port 3
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DSX-1
G.703
❏❏Voice
X
❏❏Data
Port 4
DSX-1
G.703
❏❏Voice
X
❏❏Data
Port 5
DSX-1
G.703
❏❏Voice
X
❏❏Data
Port 6
DSX-1
G.703
❏❏Voice
X
❏❏Data
Port 7
DSX-1
G.703
❏❏Voice
X
❏❏Data
Port 8
DSX-1
G.703
❏❏Voice
Port 8
X
❏❏Data
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Cross-Connecting Ports
NOTES:
Although the example in this chapter shows ports dedicated to voice or data,
a port can be configured for both voice and data.
In DS0 Cross Connect mode, for G.703 ports using Common Channel
Signaling (CCS), you must explicitly configure the cross-connections for Time
Slot 16 and related time slots.
You may find it useful to diagram your configuration. Appendix E,
Cross-Connection Worksheets, contains a skeleton diagram for this purpose. It
also contains worksheets for documenting your time slot cross-connections
before you begin to configure them.
Setting the Cross-Connect Modes
To access the Set Cross-Connect Mode screen, follow this menu selection
sequence:
Main Menu → Configuration → Load Configuration From →
Cross-Connect → Set Cross-Connect Mode
When the screen is first displayed, all ports are set to DS1 Bypass mode. In this
example, Ports 1 and 2 have been changed to DS0 Cross-connect, and Ports
3–8 have been changed to DS1 Bypass. Unassignedappears next to Ports 1
and 2 because time slots associated with the cross-connection have not yet been
assigned.
main/config/xconnect_mode
Slot: 18
Model: 87xx
CROSS-CONNECT MODE
DSX-1 Port
MODE
DSL Port
1
DS0 Cross-connect
DS0 Cross-connect
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
Unassigned
Unassigned
2
3
4
5
6
7
8
3
4
5
6
7
8
Assign_DS0s
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_All
Exit
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Cross-Connecting Ports
Assigning Time Slots
You may find it helpful to map your cross-connection assignments on a
worksheet before configuring them in the unit. In the following example, the
worksheet for DSX-1 Port 1, odd-numbered time slots from DSL Ports 1 and 2
are assigned to the time slots of DSX-1 Port 1 and configured for voice.
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
TS01
1 1
TS08
2 7
TS15
TS02
2 1
TS09
1 9
TS16
TS03
TS04
TS05
TS06
2 5
TS13
TS07
1 7
TS14
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
v
v
v
v
1 3
TS10
2 9
TS17
v
v
2 3
v
1 5
v
v
v
TS11
TS12
D
D
1 11 v
TS18
2 11 v
TS19
1 13 v
TS20
2 13 v
TS21
1 15 v
TS22
2 15 v
TS23
1 17 v
TS24
2 17 v
1 19 v
2 19 v
1 21 v
2 21 v
1 23 v
2 23 v
DSX-1 Port 2 is configured for data and is connected to the even-numbered time
slots of DSL Ports 1 and 2:
TS01
TS02
2 2
TS09
TS03
1 4
TS10
TS04
2 4
TS11
TS05
1 6
TS12
TS06
2 6
TS13
TS07
1 8
TS14
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
1 2
TS08
2 8
TS15
d
d
d
d
d
d
d
d
1 10 d
TS16
2 10 d
TS17
1 12 d
TS18
2 12 d
TS19
1 14 d
TS20
2 14 d
TS21
1 16 d
TS22
2 16 d
TS23
1 18 d
TS24
2 18 d
1 20 d
2 20 d
1 22 d
2 22 d
1 24 d
2 24 d
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Cross-Connecting Ports
To access the Assign Time Slots screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From →
Cross-Connect → Assign Time Slots
When the screen is first displayed, port and time slot assignments are blank. The
following example shows the configuration for DSX-1 Port 1, transferred from the
worksheet.
main/config/cross_connect/timeslot
Slot: 18
DSX-1 Port: 1
TS01
Model: 87xx
ASSIGN TIME SLOTS
TS02
TS03
TS04
TS05
TS06
TS07
D 1 01 v
D 2 01 v
D 1 03 v
D 2 03 v
D 1 05 v
D 2 05 v
D 1 07 v
TS08
TS09
TS10
TS11
TS12
TS13
TS14
D 2 07 v
D 1 09 v
D 2 09 v
D 1 11 v
D 2 11 v
D 1 13 v
D 2 13 v
TS15
TS16
TS17
TS18
TS19
TS20
TS21
D 1 15 v
D 2 15 v
D 1 17 v
D 2 17 v
D 1 19 v
D 2 19 v
D 1 21 v
TS22
TS23
TS24
D 2 21 v
D 1 23 v
D 2 23 v
Key: D = DSL, X = DSX-1
d = data, v = voice
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_All
Exit
The following example shows the configuration for DSX-1 Port 2.
main/config/cross_connect/timeslot
Slot: 18
Model: 87xx
ASSIGN TIME SLOTS
DSX-1 Port: 2
TS01
TS02
TS03
TS04
TS05
TS06
TS07
D 1 02 d
D 2 02 d
D 1 04 d
D 2 04 d
D 1 06 d
D 2 06 d
D 1 08 d
TS08
TS09
TS10
TS11
TS12
TS13
TS14
D 2 08 d
D 1 10 d
D 2 10 d
D 1 12 d
D 2 12 d
D 1 14 d
D 2 14 d
TS15
TS16
TS17
TS18
TS19
TS20
TS21
D 1 16 d
D 2 16 d
D 1 18 d
D 2 18 d
D 1 20 d
D 2 20 d
D 1 22 d
TS22
TS23
TS24
D 2 22 d
D 1 24 d
D 2 24 d
Key: D = DSL, X = DSX-1
d = data, v = voice
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_All
Exit
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Cross-Connecting Ports
When the Cross-Connect Mode screen is displayed now, 1,2appears next to
DSX-1 Ports 1 and 2 because time slots associated with the cross-connection
have been assigned.
main/config/xconnect_mode
Slot: 18
Model: 87xx
CROSS-CONNECT MODE
DSX-1 Port
MODE
DSL Port
1
DS0 Cross-connect
DS0 Cross-connect
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
1,2
1,2
3
4
5
6
7
8
2
3
4
5
6
7
8
Assign_DS0s
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_All
Exit
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IP Addressing
5
Selecting an IP Addressing Scheme
Your IP addressing scheme depends in part whether the management card
controlling the chassis is running IP Conservative software.
Configurations Not Running IP Conservative Software
In a configuration not running IP Conservative software, the NTU’s network
interface IP address is assigned through the peer IP address of the LTU’s
Network Interface menu.
The termination unit is assigned an IP address and subnet through the DSLAM’s
Configuration → DSL Cards → Set IP Address menu. Once the address is
assigned, you can use the ATI to assign:
H
Peer IP addresses to the DSL ports. These addresses are used as the IP
addresses of the remote units, and must be in the same subnet as the
DSLAM management card. See Table A-1, Network Interface Options, in
Appendix A, Configuration Options.
H
An IP address for each NMS to act as a trap manager. See Table A-14,
SNMP Traps Options, in Appendix A, Configuration Options.
All Configurations
The NTU obtains its IP address when the PPP link is established over the EOC.
Use the ATI to assign:
H
H
An IP address for each NMS. See Table A-13, SNMP NMS Security Options,
in Appendix A, Configuration Options.
An IP address for the TFTP server you wish to use to upload and download
configurations. See Configuration Loader in Chapter 9, Transferring Code
and Configurations Using TFTP, and the documentation for your TFTP
server.
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IP Addressing
Review the following information in preparation for selecting an IP addressing
scheme.
H
H
Any legal host address is allowed for a given subnet. The address choice
within the subnet is arbitrary.
A single route to a subnet is all that is needed to reach every device on a
subnet. The unit’s routing table supports a maximum of 20 routes.
IP Addressing Example
The following diagram shows IP addressing in a typical network. Note that:
H
H
The Peer IP Address refers to the IP address of the unit configured as an
NTU.
The Peer IP Address is assigned by the LTU.
DSLAM
MCC
NTU
MCC Base
LTU
87xx
Address = 126.35.50.1
MCC
Port 1
MCC Base Subnet
Mask = 255.255.255.0
Peer IP Address = 126.35.1.32
Port 2
Peer IP Address = 126.35.1.33
79xx
NTU Backplane
Address = 126.35.50.17
Port 3
Peer IP Address = 126.35.1.34
79xx
Port 4
Peer IP Address = 126.35.1.35
79xx
DSLAM
Port 5
Peer IP Address = 126.35.1.36
79xx
79xx
79xx
79xx
MCC Backplane
Address = 126.35.1.1
Port 6
Peer IP Address = 126.35.1.37
MCC Backplane
Mask = 255.255.255.0
Port 7
Peer IP Address = 126.35.1.38
LTU Backplane
Address = 126.35.1.16
Port 8
Peer IP Address = 126.35.1.39
99-16617
Peer IP Address Assignments
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Security
6
Overview
The Hotwire 87xx Termination Unit provides several methods of limiting user
access to the ATI through option settings. You can:
H
H
Enable the Telnet Login Required option.
Limit the access by setting a Session Access Level option of Operator for the
Telnet Session.
H
Disable the access with the Telnet Session option.
See Table A-11, Telnet Session Options, in Appendix A, Configuration Options.
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Security
ATI Access Levels
The Hotwire Termination Unit has two access levels: Administrator and Operator.
The access level determines what functions are accessible, as shown in
Table 6-1.
Table 6-1. Access Levels
ATI Access to Menu Functions
Administrator
Read-Only
Operator
Read-Only
No Access
Read-Only
No Access
Status
Test
Full Access
Full Access
Full Access
Configuration
Control
Access levels can be applied to Login IDs and Telnet sessions. When access is
through Telnet and a login is required for Telnet, the effective access level is the
more restrictive of the Telnet session access level or the login access level. (See
Table A-11, Telnet Session Options.)
When an access level of Operator is applied to Telnet sessions, a Login ID
with Administrator authority is effectively reduced to Operator. It is no longer
possible to change configuration options, and full access can be restored only by
reloading factory defaults. (See Restoring Access to the User Interface in
Chapter 3, Initial Startup and Configuration.)
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Security
Creating a Login
Logins apply to Telnet access directly to the ATI of the Hotwire Termination Unit.
The Administer Logins menu option is not presented when you access the unit
through the management card of the DSLAM.
Six login ID/password combinations are available. Each Login ID and Password
must be unique and include an access level.
" Procedure
1. To create a login record, follow this menu selection sequence:
Main Menu → Control → Administer Logins
main/control/admin_logins
Slot: 4
Model: 87xx
Page 1 of 1
ADMINISTER LOGINS
Login ID:
Access Level:
newuser
Administrator
Are You Sure? Yes
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
ESC for previous menu
MainMenu
New
Exit
Delete
Save
PgUp
PgDn
2. Select New and press Enter. The Login Entry screen is displayed.
main/control/admin_logins
Slot: 4
Model: 87xx
LOGIN ENTRY
Login ID:
newuser
Password:
e34t136
Re-enter Password:
Access Level:
e34t136
Administrator
WARNING
New logins will not become permanent until saved
through the “ADMINISTER LOGINS” screen!
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions ESC for previous menu
Save PgUp PgDn
MainMenu
New
Exit
Delete
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Security
3. Create the login by entering the following fields. Login IDs and passwords are
case-sensitive.
On the Login Entry
screen, for the . . .
Enter . . .
Login ID
1 to 10 ASCII printable characters (hex21 through 7E).
Blanks are not allowed.
Password
1 to 10 ASCII printable characters that can consist of
0–9, a–z, A–Z, # (pound), . (period), – (dash), and
/ (slash).
Re-enter Password
1 to 10 ASCII printable characters that can consist of
0–9, a–z, A–Z, # (pound), . (period),
– (dash), and / (slash).
Access Level
Administrator, Operator
NOTE:
Assign at least one Administrator-level Login ID. Full access is necessary
to make configuration option changes and administer logins.
4. Press Ctrl-a to switch to the screen function key area below the dotted line.
Select Save and press Enter.
5. When Save is complete, Command Completeappears at the bottom of the
screen.
6. If additional logins are required, repeat Steps 3 through 5.
7. When all logins are entered, press Esc to return to the Administer Logins
screen.
8. Select Save and press Enter.
Deleting a Login
" Procedure
1. To delete a login record, follow this menu selection sequence:
Main Menu → Control → Administer Logins
2. Select PgUp or PgDn and press Enter to page through login pages/records
until you find the one to be deleted.
3. Once the correct record is displayed, select Delete and press Enter.
4. To complete the delete action, select Save and press Enter.
When the deletion is complete, Command Complete appears at the bottom
of the screen. The number of login pages/records reflects one less record,
and the record following the deleted record appears.
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Security
Controlling SNMP Access
There are three methods for limiting SNMP access.
H
Disable the SNMP management option. Refer to Table A-12, General SNMP
Management Options, in Appendix A, Configuration Options.
H
H
Assign SNMP community names and access types.
Limit SNMP access through validation of the IP address of each allowed
SNMP manager.
Assigning SNMP Community Names and Access Types
The unit can be managed by an SNMP manager supporting SNMP. The
community name must be supplied by an external SNMP manager accessing an
object in the MIB.
To define SNMP community names, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From → Edit →
SNMP → General SNMP Management
Refer to Table A-12, General SNMP Management Options, to:
H
H
Enable SNMP Management.
Assign the SNMP community names of the SNMP Managers that are allowed
to access the units Management Information Base (MIB).
H
Specify Read or Read/Write access for each SNMP community name.
Limiting SNMP Access through the IP Addresses of the Managers
The unit provides an additional level of security through validation of the IP
addresses.
The SNMP Management option must be enabled. To control SNMP access with
IP addresses, follow this menu selection sequence:
Main Menu → Configuration → Management → Security Menu
Refer to Table A-13, SNMP NMS Security Options. The SNMP access can be
limited by:
H
H
Enabling NMS IP address checking.
Add each IP address and access level.
NOTE:
Do not change or delete the IP address or access level of the NMS
performing the sets or enable IP address checking prior to adding the NMS to
the table.
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Monitoring and Troubleshooting
7
What to Monitor
This chapter presents information on how to diagnose problems, monitor unit
status, and assess performance by using the:
H
System and Test Status screen
— Highest priority Health and Status message on the last line of all screens
— Self-test results messages
— Test status messages
H
H
H
H
H
H
Device Messages displayed at the bottom of any ATI screen
Network Error Statistics screen
Network Performance Statistics screen
DSX-1 or G.703 Statistics screen
Display LEDs screen or LEDs on the unit’s front panel
Troubleshooting table
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Monitoring and Troubleshooting
Viewing System and Test Status
To view System and Test Status information, follow this menu selection
sequence:
Main Menu → Status → System and Test Status
main/status/system
Slot: 2
Model: 87xx
Page 1 of 1
SYSTEM AND TEST STATUS
SELF-TEST RESULTS
HEALTH AND STATUS
TEST STATUS
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
LOS at Net, Pt n
CPU Failed
No Test Active
OOF at Net, Pt n
EER at Net, Pt n
LOS at DSX-1 Pt n
Net Margin Threshold, Pt n
Device Failed yyyyyyyy
Download Failed
Device Failed
Net DSL Failed, Pt n
DSX-1 Pt Failed, Pt n
Memory Failed
Passed
LLB Test Active, Pt n
RLB Test Active, Pt n
Lamp Test Active
DLB Test Active, Pt n
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
ESC for previous menu
MainMenu
Exit
The System and Test Status screen has three sections:
H
H
H
Health and Status – Displays messages in priority order (highest to lowest).
Refer to Table 7-1, Health and Status Messages.
Self-Test Results – Results of the Diagnostic test run on the device itself.
Refer to Table 7-2, Self-Test Results Messages.
Test Status – Currently active tests. Refer to Table 7-3, Test Status
Messages.
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Monitoring and Troubleshooting
Health and Status Messages
The following messages appear in the first column of the System and Test Status
screen. The highest priority Health and Status message also appears on all ATI
screens on the bottom right.
Table 7-1. Health and Status Messages (1 of 3)
Message
What Message Indicates
What To Do
AIS at DSX-1,
Pt n
An AIS (Alarm Indication
Signal) is being received by
the DSX-1 interface.
1. Verify that the unit’s line framing
and line coding are compatible.
2. Contact network provider.
AIS at G.703,
Pt n
An AIS is being received by
the G.703 interface.
1. Verify that the unit’s line framing
and line coding are compatible.
2. Contact network provider.
Device Failed
yyyyyyyy
An internal error has been
detected by the operating
software. yyyyyyyy indicates
the 8-digit hexadecimal failure
code.
1. Provide the 8-digit failure code
shown (yyyyyyyy) to your service
representative.
2. Reset the unit to clear the
condition and message.
Download Failed A firmware download was
interrupted.
Repeat the download.
EER at DSX-1,
Pt n
An EER condition has been
detected on the DSX-1
interface.
1. Verify the attached equipment
coding is compatible.
2. Contact network provider.
EER at G.703,
Pt n
An EER condition has been
detected on the G.703
interface.
1. Verify that the network cable is
securely attached at both ends.
2. Verify proper NTU and LTU
configuration.
3. Contact network provider.
EER at Net, Pt n
An EER (Excessive Error
Rate) condition has been
detected on the network
interface at Port n. The
condition is cleared when the
error rate falls below the
threshold value currently
configured.
1. Check the Network Performance
Statistics screen for possible line
impairments.
2. Set the unit to run at a lower DSL
line rate.
Fallback Rate,
Pt n
The LTU, set to AutoRate
enable, synchronized at a
lower rate when the line was
restored after an LOS.
Reset AutoRate, or run at a fixed
rate.
IP Mismatch, Pt n The NTU and the LTU are
operating in different NMS
In a DSLAM-to-DSLAM
configuration, use the same
software in the management cards
management modes: one is
in IP Conservative mode and of both DSLAMs.
one is not.
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Monitoring and Troubleshooting
Table 7-1. Health and Status Messages (2 of 3)
Message
What Message Indicates
What To Do
LOF at DSX-1,
Pt n
An LOF (Loss Of Frame)
condition has been detected
on the DSX-1 interface. LOF
is declared when an OOF
state exists longer than 2.5
seconds.
1. Verify that the network cable is
securely attached at both ends.
2. Contact network provider.
LOF at G.703,
Pt n
An LOF condition has been
detected on the G.703
1. Verify that the network cable is
securely attached at both ends.
interface. LOF is declared
when any three consecutive
frame synchronization bits are
incorrect, frames not
2. Verify that the units line framing
and line coding are compatible.
3. Contact network provider.
containing the frame
alignment signal are received
with an error three times
consecutively, or, for CRC-4
framing, CRC multiframe bit
alignment fails.
LOS at DSX-1,
Pt n
An LOS (Loss Of Signal)
condition has been detected
on the DSX-1 interface. No
signal is being received on
Port n. LOS is declared when
175 consecutive zeros are
received.
1. Verify that the network cable is
securely attached at both ends.
2. Contact network provider.
LOS at G.703,
Pt n
An LOS condition has been
detected on the G.703
interface. No signal is being
received on Port n. LOS is
declared when 175
1. Verify that the network cable is
securely attached at both ends.
2. Contact network provider.
consecutive pulse
transmissions are received
with no pulse transitions.
LOS at Net, Pt n
An LOS (Loss Of Signal)
condition has been detected
on the network interface. No
signal is being received on
Port n, possibly due to a local
network problem.
1. Verify that the network cable is
securely attached at both ends.
2. Contact network provider.
Mismatch Rate,
Pt n
The LTU, set to a fixed DSL
rate, is attempting to operate
at a rate the NTU is not
capable of.
Set the LTU to a compatible rate or
replace the NTU.
Net Margin
Threshold, Pt n
The signal-to-noise margin
has exceeded the configured
threshold.
1. Check the Network Performance
Statistics screen for possible line
impairments.
2. Set the unit to run at a lower DSL
line rate.
3. Contact network provider.
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Monitoring and Troubleshooting
Table 7-1. Health and Status Messages (3 of 3)
Message
What Message Indicates
What To Do
NTU TS16 Not
Supported
The LTU is configured for
TS16 signaling and the NTU
is not configured to support
TS16 signaling.
1. Verify endpoint is a G.703
product. EIA-530-A products do
not support signaling.
2. Replace endpoint or reconfigure
TS16 to data.
NTU/LTU
Mismatch, Pt n
The NTU is not configured
compatibly with the LTU.
Configure units to match.
OOF at Net, Pt n An Out Of Frame (OOF)
condition has been detected.
An OOF condition is declared
when 2 out of 4 frame
1. Check the Transmit Clock Source
configuration options. Do not set
both the local and remote unit to
Internal, External, or Loop timing.
synchronization bits are in
error.
2. Set the unit to run at a lower DSL
line rate.
3. Contact network provider.
Primary Clock
Failed, Pt n
A failure has occurred in the
primary clock source for the
DSX-1 or G.703 port.
1. Verify that the network cable is
securely attached at both ends.
2. Contact network provider.
Primary System
Clock Failed
A failure has occurred in the
clock common to all
cross-connect circuitry.
Contact your service representative.
RAI at G.703,
Pt n
An RAI (Remote Alarm
Indication) signal is being
received by the G.703
interface.
1. Check the status of the upstream
device.
2. Verify proper NTU and LTU
configuration.
Secondary
System Clock
Failed
A failure has occurred in the
fallback clock for the system
clock.
Contact your service representative.
System
Operational
There are no problems
detected.
Yellow Alarm at
DSX-1, Pt n
A Yellow Alarm Indication
signal is being received by
the DSX-1 interface.
1. Verify that the unit’s line framing
and line coding are compatible.
2. Contact network provider.
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Monitoring and Troubleshooting
Self-Test Results Messages
The results of the last power-on or reset self-test appear in the middle column of
the System and Test Status screen.
Table 7-2. Self-Test Results Messages (1 of 2)
Message
What Message Indicates
What To Do
1. Reset the unit and try again.
CPU Fail
The Central Processing Unit failed
internal testing.
2. Call your service
representative for assistance.
CPU CPLD
Fail
The Complex Programmable Logic
Device serving the Central
Processing Unit failed.
Data Path
Fail, Pt n
The port shown failed to loop data on
the full data path test.
DeviceFailed One or more of the unit’s integrated
circuits has failed device-level
testing.
DSL
The DSL framer for Ports 1–4
Framer x Fail (Framer A) or 5–8 (Framer B) failed.
DSL xcvr
The DSL transceiver failed on Port n.
Fail, Pt n
DSX-1
Failed, Pt n
The unit failed to internally loop data
on the DSX-1 Port n.
DTE
The DTE framer for Ports 1–4
Framer x Fail (Framer A) or 5–8 (Framer B) failed.
DTE LIU x
Fail
The DTE Line Interface Unit for
Ports 1–2 (LIU A), 3–4 (LIU B), 5–6
(LIU C), or 7–8 (LIU D) failed.
EEPROM
Fail
The unit failed Electrically Erasable
Programmable Read-Only Memory
verification.
Failure
xxxxxxxx
An internal failure occurred.
(xxxxxxxx represents an 8-digit
hexadecimal failure code for use by
service personnel.)
Record the failure code and
contact your service
representative.
1. Reset the unit and try again.
FPGA Failed The Field Programmable Gate Array
serving all ports failed.
2. Call your service
representative for assistance.
G.703
The unit failed to loop data on the
Failed, Pt 1
G.703 on Port n.
Memory
Test n Fail
The unit failed memory data
verification (Test 1) or memory
address verification (Test 2).
Passed
No errors were detected.
N/A
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Monitoring and Troubleshooting
Table 7-2. Self-Test Results Messages (2 of 2)
Message
What Message Indicates
What To Do
PLD Failure
An error was detected in a
Programmable Logic Device.
1. Reset the unit and try again.
2. Call your service
representative for assistance.
1. Reset the unit and try again.
TSI CPLD
Fail
The Complex Programmable Logic
Device serving the Timeslot
Interchanger failed.
2. Call your service
representative for assistance.
TSI Fail
The Timeslot Interchanger failed.
Test Status Messages
The Test Status messages in the following table appear in the right column of the
System and Test Status screen.
Table 7-3. Test Status Messages
Test Status Message Meaning
511 Test Active, Pt n
A 511 Test and Monitor is active on the DSL Port n network
interface.
DLB Test Active, Pt n
A Data Terminal Loopback test is active on Port n.
Lamp Test Active
The Lamp Test is active, causing the LEDs on the front panel to
light.
LLB Test Active, Pt n
A network Line Loopback test is active on Port n.
No tests are currently running.
No Test Active
Remote LLB Dn
A Remote Line Loopback Down command is being sent.
Active, Pt n
Remote LLB Up
A Remote Line Loopback Up command is being sent.
Active, Pt n
RLB Test Active, Pt n
A network Repeater Loopback test is active on Port n.
Telco LLB Active, Pt n A Telco-initiated Line Loopback is active on the specified
DSX-1 port.
Telco PLB Active, Pt n A Telco-initiated Payload Loopback is active on the specified
DSX-1 port.
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Monitoring and Troubleshooting
Device Messages
The Device Messages in Table 7-4, listed in alphabetical order, may appear in the
messages area at the bottom of the ATI screens.
Table 7-4. Device Messages (1 of 2)
Device Message
What Message Indicates
What To Do
0.0.0.0 is an invalid
IP address
An IP address of all zeros
was entered.
Enter a valid, non-zero IP
address.
Access level is
Operator.
Configuration is
read-only.
The operator requested that If configuration options are to be
configuration options be
loaded, but does not have
authority to edit them.
edited, use a Login ID that has
Administrator authority.
Cannot Save – no
All of the login IDs being
Change the access level of at
Login IDs with Access saved have an access level least one Login ID to
Administrator
below Administrator.
Administrator so that
configuration changes can be
made. (Operator-level users
cannot make configuration
changes.) Save the Login IDs.
Command Complete
Action requested has
successfully completed.
No action needed.
Invalid Character (x)
A nonprintable ASCII
character (x) has been
entered.
Re-enter information using valid
characters.
Invalid Password
Login is required and an
incorrect password was
entered; access is denied.
H Try again.
H Contact your system
administrator to verify your
password.
Invalid – Send Pattern A pattern test was already
H Allow test to continue.
H Select another test.
H Stop the test.
Already Active
in progress when the Start
field was selected.
Invalid – [Test]
Already Active
The described test was
already in progress when
another selection was
made.
H Allow test to continue.
H Select another test.
H Stop the test.
Invalid Test
Combination
A loopback or pattern test
was in progress when Start
was selected to start
another test, or was active
on the same or another
interface when Start was
selected.
H Wait until other test ends and
message clears.
H Abort all tests from the Test
menu screen.
H Stop the test from the same
screen the test was started
from.
IP address not in MCC The Peer IP address
Enter an IP address that is in the
subnet
nnn.nnn.nnn.nnn
specified is not in the same same subnet as the MCC.
subnet as the MCC.
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Monitoring and Troubleshooting
Table 7-4. Device Messages (2 of 2)
Device Message
What Message Indicates
What To Do
Limit of six Login IDs
reached
An attempt to enter a new
login ID was made, and the
limit of six login/password
combinations has been
reached.
1. Delete another login/password
combination.
2. Re-enter the new login ID.
No Security Records
to Delete
Delete was selected from
the Administer Login
screen, and no security
records had been defined.
H No action needed.
H Enter a security record.
Password Matching
Error – Re-enter
Password
Password entered in the
Re-enter Password field of
the Administer Logins
screen does not match
what was entered in the
Password field.
H Try again.
H Contact your system
administrator to verify your
password.
Please Wait
Test Active
Command takes longer
than 5 seconds.
Wait until message clears.
A test is running and no
higher priority health and
status messages exist.
H Contact service provider if test
initiated by the network.
H Wait until the other test ends
and message clears.
H Cancel all tests from the Test
screen.
H Stop the test from the same
screen the test was started
from.
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Monitoring and Troubleshooting
Viewing Network Error Statistics
The unit maintains error statistics on the network DSL interface for each port.
Port 1 is the default screen selection.
Statistics are maintained for up to 96 15-minute intervals (24 hours).
To view the Network Error Statistics, follow this menu selection sequence:
Main Menu → Status → Performance → Network Error Statistics
main/status/performance/net_error
Slot: 4:
Port: 2
Model: 87xx
NETWORK ERROR STATISTICS
Current Interval Timer: 002
Error Events Counter: 0034
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
–––ES–––
Near Far
–––SES–––
Near Far
000 000
000 000
000 000
000 000
000 000
000 000
000 000
000 000
––FEBE––
Near Far
000 000
000 000
000 000
000 000
000 000
000 000
000 000
000 000
–Complete–
Near Far
Yes No
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Current Int: 000 000
Interval 01 000 000
Interval 02 000 000
Interval 03 000 000
Interval 04 000 000
Interval 05 000 000
Interval 06 000 000
Interval 07 000 000
Worst Interval: 24
Near Tot(valid): 00010
Far Tot (valid): 00010
09
14
08
00000
00000
18
18
00000
00000
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl–a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn ClrNear ClrFar
Select a port 1–2 to view error statistics for the port. The default port is 1. Use the
virtual function keys to page through the intervals and clear statistics.
Network Error Statistics are collected for all ports for:
H
H
ES (Errored Seconds): Seconds during which one or more ESF error events
occurred.
SES (Severely Errored Seconds): Seconds during which more than
320 cyclic redundancy check (CRC) error events or at least one Out of Frame
(OOF) event occurred.
H
H
FEBE (Far-End Block Errors): Errors reported by the remote equipment.
Complete: Whether the interval register contains data for all 900 seconds of
the interval.
Use the virtual function keys to page through the intervals and clear statistics.
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This Field . . .
Contains . . .
Current Interval
Timer
The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter is reset every 15 minutes.
Error Events
Counter
A running total of CRC errors. Range 0–65535. This counter is
reset when the near-end data is cleared.
Current Int
Performance data for the current 15-minute interval.
Interval xx
Historical performance data for up to 96 15-minute intervals
(24 hours).
Worst Interval
The number of the interval with the worst (highest) performance
data for both the near-end and far-end statistics. If two or more
intervals are equal, the oldest interval is displayed.
Near and Far TOT
A running total of the near-end and far-end performance statistics.
Viewing Network Performance Statistics
Network performance statistics allow you to monitor the current status of the
network DSL operations. Performance statistics can assist you in determining the
duration of specific conditions and provide a historical context for problem
detection and analysis.
Statistics are maintained for up to 96 15-minute intervals (24 hours).
To view the Network Performance Statistics, follow this menu selection sequence:
Main Menu → Status → Performance → Network Performance Statistics
main/status/performance/net_perf
Slot: 4:
Port: 2
Model: 87xx
NETWORK PERFORMANCE STATISTICS
Payload Rate: 1536 kbps
DSL Line Rate: 1552 kbps
Current Interval Timer: 002
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
––Mrgn––
Near Far
––XmtPw–
Near Far
+03 +03
+03 +03
+03 +03
+03 +03
+03 +03
+03 +03
+03 +03
+03 +03
––RxGn––
Near Far
+02 +02
+02 +02
+02 +02
+02 +02
+02 +02
+02 +02
+02 +02
+02 +02
–Complete–
Near Far
Yes Yes
Yes No
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Current Int: +02 +01
Interval 01 +02 +02
Interval 02 +02 +01
Interval 03 +02 +01
Interval 04 +02 +01
Interval 05 +02 +01
Interval 06 +02 +01
Interval 07 +02 +01
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl–a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn
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Monitoring and Troubleshooting
Select a port (1–2) to view performance statistics for the port. The default port
is 1. Use the virtual function keys to scroll through the intervals
Use the virtual function keys to scroll through the intervals and clear statistics.
Network Performance Statistics are collected for all ports for:
H
Mrgn: Signal to Noise Ratio (SNR) Margin, the amount (in dB) that the
Receive signal has exceeded the value needed to maintain a Bit Error Rate
–7
(BER) of 10 or better.
H
H
H
XmtPw: The transmit power level.
RxGn: The receiver gain level.
Complete: Whether the interval register contains data for all 900 seconds of
the interval.
This Field . . .
Contains . . .
Current Interval
Timer
The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter is reset every 15 minutes.
DSL Line Rate
Payload Rate
Current Int
The rate of the DSL line.
The rate of data transfer.
Performance data for the current 15-minute interval.
Interval xx
Historical performance data for up to 96 15-minute intervals
(24 hours).
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Monitoring and Troubleshooting
Viewing DSX-1 Performance Statistics
DSX-1 performance statistics allow you to monitor the current status of the DSX-1
interface operations when ESF framing is selected. Performance statistics can
assist you in determining the duration of specific conditions and provide a
historical context for problem detection and analysis. Statistics are maintained for
up to 96 15-minute intervals (24 hours).
To view the Network Performance Statistics, follow this menu selection sequence:
Main Menu → Status → Performance → DSX-1 Performance Statistics
main/status/performance/DSX-1
Slot: 4
Port: 2
Model: 87xx
DSX-1 PERFORMANCE STATISTICS
Error Events Counter: 0000
Current Interval Timer: 2
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
––ES–– ––UAS–– ––SES–– ––BES–– ––CSS–– –LOFC– –Status–
Current Int:
Interval 01
Interval 02
Interval 03
Interval 04
Interval 05
Interval 06
Interval 07
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Y
none
none
none
none
none
none
none
Worst Interval:
24
14
14
09
18
12
Tot (valid 96): 00010
00000
00000
00000
0020
0000
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl–a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn ClrStats
Select PgUp or PgDn to view the next or previous seven intervals, select ClrStats
to clear all statistics to zero.
DSX-1 Performance Statistics are collected for:
H
H
ES (Errored Seconds): Seconds during which one or more error events
occurred.
UAS (Unavailable Seconds): Seconds during which service is unavailable.
UAS is received at the start of 10 consecutive SES and cleared at the start of
10 seconds with no SES.
H
H
H
SES (Severely Errored Seconds): Seconds during which 320 or more cyclic
redundancy check (CRC) error events or at least one Out of Frame (OOF)
event occurred.
BES (Bursty Errored Seconds): Contains the number of bursty errored
seconds for the current interval. A bursty errored second is any second with
more than one but less than 320 CRC errors.
CSS (Controlled Slip Seconds): Seconds during which one or more
controlled slips (as defined in TR 54016) occurred.
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Monitoring and Troubleshooting
H
H
LOFC (Loss of Frame Count): Contains the number of times that an LOF is
declared.
Status: Contains the contents of the status events register. The status events
register maintains a history of specific events that have occurred during an
interval. Values include:
— Y: Remote alarm indication signal (yellow alarm) received at the DSX-1
interface
— L: Loss of signal detected at the DSX-1 interface
— E: Excessive error rate threshold exceeded
— F: Frame synchronization bit error detected
— V: Line code violation detected
— None: No significant events have occurred
This Field . . .
Contains . . .
Current Interval
Timer
The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter is reset every 15 minutes.
Error Events
Counter
A running total of CRC and OOF events. Total range = 0–65535.
This counter is reset when the statistics are cleared.
Current Int
Performance data for the current 15-minute interval.
Interval xx
Historical performance data for up to 96 15-minute intervals
(24 hours) where the value of xx is from 01 to 96.
Worst Interval
Identifies the interval during which the most error events were
detected.
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Monitoring and Troubleshooting
Viewing G.703 Performance Statistics
G.703 performance statistics allow you to monitor the current status of the
network DSL operations. Performance statistics can assist you in determining the
duration of specific conditions and provide a historical context for problem
detection and analysis.
Statistics are maintained for up to 96 15-minute intervals (24 hours).
To view the G.703 Performance Statistics, follow this menu selection sequence:
Main Menu → Status → Performance → G.703 Statistics
main/status/performance/G.703
Slot: 4
Port: 2
Model: 87xx
G.703 PERFORMANCE STATISTICS
Current Interval Timer: 004
Error Events Counter: 012
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
––ES–– ––UAS–– ––SES–– ––BES–– ––CSS–– –LOF–
–Status–
Current Int:
Interval 01
Interval 02
Interval 03
Interval 04
Interval 05
Interval 06
Interval 07
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Y
none
none
none
none
none
none
none
Worst Interval:
24
14
14
09
18
12
Tot (valid 96): 00010
00000
00000
00000
0020
0000
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl–a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn ClrStats
Select a port to view the performance statistics. The default port is 1.
G.703 Performance Statistics are collected for all ports for:
H
H
ES (Errored Seconds): Seconds during which one or more error events
occurred.
UAS (Unavailable Seconds): Seconds during which service is unavailable.
UAS is received at the start of 10 consecutive SES and cleared at the start of
10 seconds with no SES.
H
SES (Severely Errored Seconds): Seconds during which 805 or more cyclic
redundancy check (CRC) error events, 16 or more FAS errors, or at least one
Out of Frame (OOF) event occurred.
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Monitoring and Troubleshooting
H
BES (Bursty Errored Seconds): Contains the number of bursty errored
seconds for the current interval. A bursty errored second is any second with
more than one but less than 805 CRC errors (CRC Mode) or more than one
but less than 16 FAS errors (non-CRC mode).
H
H
H
CSS (Controlled Slip Seconds): Seconds during which one or more
controlled slips (as defined in TR 54016) occurred.
LOF (Loss of Frame Seconds): Contains the number of seconds that
contain one or more LOF events.
Status: Contains the contents of the status events register. The status events
register maintains a history of specific events that have occurred during an
interval. Values include:
— Y: Remote alarm indication signal received at the G.703 interface
— L: Loss of signal detected at the G.703 interface
— E: Excessive error rate threshold exceeded
— F: Frame synchronization bit error detected
— V: Line code violation detected
— None: No significant events have occurred
Use the virtual function keys to page through the intervals and clear statistics.
This Field . . .
Contains . . .
Current Interval
Timer
The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter is reset every 15 minutes.
Error Events
Counter
A running total of CRC errors. Range 0–65535. This counter is
reset when the statistics are cleared.
Current Int
Performance data for the current 15-minute interval.
Interval xx
Historical performance data for up to 96 15-minute intervals
(24 hours).
Worst Interval
Tot
The number of the interval with the worst (highest) performance
data statistics. If two or more intervals are equal, the oldest
interval is displayed.
A running total of the performance statistics.
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Monitoring and Troubleshooting
Viewing LED Status
The unit LEDs can be viewed on the Display LEDs Status screen, available
locally and remotely.
The LEDs are organized into three groups:
H
H
H
System LEDs display the status of the unit
DSX-1 or G.703 LEDs provide the status of the DTE interface
DSL Loop LEDs display the activity on the DSL network
To view the Display LEDs status screen, follow this menu selection sequence:
Main Menu → Status → Display LEDs
main/status/leds
Slot: 18
Model: 87xx
DISPLAY LEDs
SYSTEM
DSX-1|G.703 Port
DSL LOOP
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Alarm Off
Test Off
P1:Link Up
P2:Link Up
P3:Link Up
P4:Link Up
P5:Link Up
P6:Link Up
P7:Link Up
P8:Link Up
P1:Link Up
P2:Link Up
P3:Disabledp
P4:Link Up
P5:Link Up
P6:Link Up
P7:Link Up
P8:Link Up
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
ESC for previous menu
MainMenu
Exit
The LED status display screen is updated every 5 seconds.
Table 7-5 shows the meaning of the possible values for each LED represented.
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Monitoring and Troubleshooting
Table 7-5. Display LEDs Screen
Type
Label
Value is . . . Indicating . . .
SYSTEM
Alarm
On
Off
Device failure, Power-On Self-Test (POST)
failure, ports inoperable or unable to train.
No alarms.
Test
On
Off
Loopback test or 511 test pattern in progress.
No tests.
DSX-1
PORT
P1
through
P8
Link Up
Recoverable signal present on the DSX-1
network.
Link Down
LOF
No signal on the port.
The port has a Loss of Frame alignment.
EER
The port has an Excessive Error Rate
condition.
Yellow
AIS
The port received a Yellow Alarm.
The port received an Alarm Indication Signal.
The port has been administratively disabled.
Disabled
G.703
PORT
P1
through
P8
Link Up
Recoverable signal present on the G.703
network.
Link Down
LOF
No signal on the port.
The port has a Loss of Frame alignment.
EER
The port has an Excessive Error Rate
condition.
RAI
The port received a Remote Alarm Indication.
The port received an Alarm Indication Signal.
The port has been administratively disabled.
AIS
Disabled
DSL LOOP P1
through
P8
Link Up
Link Down
Startup
OOF
DSL link is up.
DSL link is down.
DSL training in progress.
Out Of Frame condition.
The port has been administratively disabled.
Disabled
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Monitoring and Troubleshooting
Front Panel LEDs
The following table describes the meaning and states of the LEDs on the
faceplate. PORTS LEDs represent the DTE or DSL ports depending on the Port
LEDs selection on the Control screen.
SYSTEM
O
K
Type
LED
LED is . . .* Indicating . . .
Alrm
T
SYSTEM
OK
(Green)
On
Off
Normal operation; card functioning normally.
No power to card, or card failure.
est
POR
TS
Slow cycling Unit is in minimum mode and a download is
required.
1
2
3
4
Pulsing
On
Normal operation.
Alrm
(Amber)
Device failure, Power-On Self-Test (POST) is
not complete, or an alarm was reported on a
DSL, DSX-1, or G.703 port.
Off
On
No alarms.
5
6
7
8
Test
(Amber)
Loopback test or 511 test pattern in progress.
Slow cycling POST in progress.
Off
No tests.
PORTS
1, 2, 3, 4, On
5, 6, 7, 8
Recoverable signal present on the DSX-1 or
G.703 network.
(when
DSX-1 or
G.703
(Green)
Slow cycling Yellow Alarm Indication (DSX-1) or Remote
Alarm Indication (G.703) present.
selected)
Fast cycling An OOF, LOF, EER, or AIS condition exists.
Off
No signal on the port.
DSL link is up.
PORTS
1, 2, 3, 4, On
5, 6, 7, 8
Slow cycling DSL training in progress.
Fast cycling OOF condition.
(when DSL (Green)
selected)
Off
DSL link is down.
* Slow Cycling: LED turns off and on in equal duration once per second.
Fast Cycling:
Pulsing:
LED turns off and on in equal duration 5 times per second.
LED turns off momentarily once per second.
M/SDSL
8747
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Monitoring and Troubleshooting
Changing the Meaning of the PORTS LEDs
The PORTS LEDs on the front panel represent the status of the DSL network or
DTE ports depending on the Port LEDs configuration option. The LED display can
also be selected at any time through the Control branch.
" Procedure
To change the meaning of the PORTS LEDs using the Control branch:
1. From the Main Menu, select Control.
2. Move the cursor to the Port LEDs entry.
3. Toggle the selection using the spacebar.
4. Press Enter.
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Monitoring and Troubleshooting
Troubleshooting
The Hotwire Termination Unit is designed to provide you with many years of
trouble-free service. If a problem occurs, however, refer to Table 7-6 for possible
solutions. If an error message is displayed under Health and Status on the
System and Test Status screen, refer to Table 7-1, Health and Status Messages,
for recommended action.
Table 7-6. Troubleshooting (1 of 2)
Symptom
Possible Cause
Solutions
Alarm LED is on.
A system failure has
occurred.
Refer to Table 7-1, Health and
Status Messages, for
recommended action.
Cannot access the
unit via the ATI.
The terminal is not set up
for the correct rate or data
format, or the unit is
configured so it prevents
access.
H Check the cable and
connections.
H Ensure that the unit is configured
properly in the DSLAM. Verify its
IP address.
H Reset the unit.
H Reset the unit.
Device Fail appears The unit detects an internal
on the System and
Test Status screen
under Self-Test
results.
hardware failure.
H Contact your service
representative.
Power-On Self-Test The unit has detected an
fails. Only Alarm
LED is on after
power-on.
internal hardware failure.
No power, or the
LEDs are not lit.
The unit is not properly
seated in the DSLAM.
Verify that the unit is properly
inserted.
There is no power to the
DSLAM.
Verify that the DSLAM has power.
An LED is not lit.
LED is out.
Run the Lamp Test. If the LED in
question does not flash with the
other LEDs, then contact your
service representative.
Not receiving data.
H The network or DTE port H Check network and DTE port
cables are not
cables.
connected (check front
panel LEDs for more
information).
H Check Health and Status menu.
H Run Loopback tests. Refer to
Chapter 8, Testing.
A test is being executed
on the unit (check the
TEST LED on the front
panel).
H Stop the test or wait for the test
to end.
H Make sure the far-end device is
H The far-end device is
on.
offline.
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Monitoring and Troubleshooting
Table 7-6. Troubleshooting (2 of 2)
Symptom Possible Cause
Solutions
Not receiving data
on one or more time
slots.
The DSL line rate does not Match the number of DSL time slots
support the number of DSL to the DSL line rate. See Tables A-2
time slots defined.
and A-3 in Appendix A,
Configuration Options, for
information about maximum
payload rates for different DSL line
rates.
The associated port is
administratively disabled.
Check the Display LEDs screen to
determine if the port is disabled.
Enable the port if necessary using
the Network, DSX-1, or G.703
Interface Options screen.
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Testing
8
Accessing the Test Menu
From the Test menu, you can run network tests, data port tests, and a front panel
lamp test.
To access the Test menu, follow this menu selection sequence:
Main Menu → Test
main/test
Slot: 18
Model: 87xx
TEST
Network & DSX-1 | G.703 Tests
Device Tests
Abort All Tests
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Select . . .
To . . .
Network & DSX-1 Tests
Network & G.703 Tests
Start and stop tests on the DSX-1, G.703, or network
interface.
Device Tests
Start and stop the Lamp Test.
Abort All Tests
To abort current tests excluding network-initiated
loopback tests. An aborted test may continue to run for
a few seconds as the abort command is sent to the
remote end and processed.
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Testing
Running Network Tests
Network tests require the participation of your network service provider. To
access the Network Tests screen, follow this menu selection sequence:
Main Menu → Test → Network & DSX-1 Tests
– or –
Main Menu → Test → Network & G.703 Tests
main/test/network_DSX1
Slot: 18
Port: 1
Model: 87xx
NETWORK & DSX-1 TESTS
Command Status Results
Test
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Local Loopbacks
Network Line Loopback:
DSX-1 Repeater Loopback:
DSX-1 DTE Loopback:
Start
Start
Start
Inactive
Inactive
Inactive
00:00:00
00:00:00
00:00:00
Remote Loopbacks
Send Line Loopback: Down
Send
Stop
Inactive
Active
00:00:00
Pattern Tests
Send and Monitor 511
10:12:42 - Errors 99999+
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
ResetMon
MainMenu
Exit
main/test/network_G703
Slot: 4
Model: 87xx
Port: 2
NETWORK & G.703 TESTS
Test
Command
Status
Results
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Local Loopbacks
Network Line Loopback:
G.703 Repeater Loopback:
G.703 DTE Loopback:
Start
Start
Start
Inactive 00:00:00
Inactive 00:00:00
Inactive 00:00:00
Network Remote Loopbacks
Send Line Loopback: Down
Send
Stop
Inactive 00:00:00
Network Pattern Tests
Send and Monitor 511
Active
11:37:52 - Errors 99999+
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
ResetMon
MainMenu
Exit
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Testing
Use the Command column to start or stop a test. When the Status column
shows that a test is Inactive, Startis displayed; when a test is Active, Stopis
displayed. Position the cursor at the desired Start or Stop command and press
Enter.
Selecting Abort All Tests from the Test menu will not disrupt a send and monitor
511 test.
The Results column displays the test duration.
When the Send and Monitor 511 test is active, ResetMon is available to reset the
error counter to zero.
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Testing
Network Line Loopback
Network Line Loopback (LLB) loops the received signal on the network interface
back to the network without change. Also, for DSX-1 models:
H
H
If the DSL port is in a DS0 cross-connection, corresponding DSX-1 time slots
are sent all ones.
If the DSL port is in Bypass mode or a DS1 cross-connection, an AIS is sent
to the corresponding DSX-1 port.
CAP
CAP
T1/E1
DSX-1
or G.703
Port
AIS
DSL
Port
LIU
Transceiver Framer
Framer
99-16612
" Procedure
To run a Line Loopback:
1. Position the cursor at the Start command next to Network Line Loopback on
the Network & DSX-1 or Network & G.703 Tests screen.
2. Press Enter.
The Start command is changed to Stop.
3. To manually stop the test, verify that the cursor is positioned at the Stop
command.
4. Press Enter.
Network Line Loopback cannot be started when another loopback or pattern test
is in progress.
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Testing
Repeater Loopback
Repeater Loopback (RLB) loops the signal being sent from the DTE port back to
the DTE port. Also, for DSX-1 models, if the DSX-1 port is in Bypass mode or a
DS1 cross-connection, the corresponding DSL port is sent all ones and data
received on the DSL link is ignored.
CAP
CAP
T1/E1
DSX-1
or G.703
Port
DSL
Port
AIS
LIU
Transceiver Framer
Framer
99-16613
" Procedure
To run a Repeater Loopback:
1. Position the cursor at the Start command next to Repeater Loopback on the
Network & DSX-1 or Network & G.703 Tests screen.
2. Press Enter.
The Start command is changed to Stop.
3. To manually stop the test, verify that the cursor is positioned at the Stop
command.
4. Press Enter.
A Repeater Loopback cannot be started when any other loopback test is in
progress.
NOTE:
Activating the Repeater Loopback test causes the Embedded Operations
Channel (EOC), used for management, to be lost to the remote unit.
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Testing
DTE Loopback
DTE Loopback loops the DSX-1 or G.703 signal back to itself before the signal is
sent to the Framer. Also, for DSX-1 models:
H
H
If the DSX-1 port is in a DS0 cross-connection, corresponding DSL time slots
are sent all ones.
If the DSX-1 port is in Bypass mode or a DS1 cross-connection, all ones are
sent to the corresponding DSL port and data received on the DSL link is
ignored.
CAP
CAP
T1/E1
DSX-1
or G.703
Port
DSL
Port
LIU
All Ones
Transceiver Framer
Framer
99-16614
" Procedure
To run a DTE Loopback:
1. Position the cursor at the Start command next to DTE Loopback on the
Network & DSX-1 or Network & G.703 Tests screen.
2. Press Enter.
The Start command is changed to Stop.
3. To manually stop the test, verify that the cursor is positioned at the Stop
command.
4. Press Enter.
A DTE Loopback cannot be started when any other loopback test is in progress.
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Testing
Remote Send Line Loopback
The local unit initiates this test by sending a line loopback Up or Down command
to the remote unit for 10 seconds. When the remote unit detects the loopback Up
command, it puts itself in line loopback and lights the front panel Test LED. The
remote unit remains in loopback until it receives a loopback Down command or
the remote unit’s test timeout value is exceeded. The Send Line Loopback tests
both units. External equipment can be used to verify the link.
Local
Remote
T1/E1
CAP
CAP
CAP
CAP
T1/E1
DSX-1
or
G.703
Port
AIS
LIU
LIU
Framer
Framer Transceiver
Transceiver Framer
Framer
99-16615
" Procedure
To run a Remote Send Line Loopback:
1. Position the cursor at the Up or Down selection next to Send Line Loopback
on the Network & DSX-1 or Network & G.703 Tests screen.
2. Press the spacebar to select either Up or Down.
3. Position the cursor at the Send command next to Up or Down selection.
4. Press Enter.
The local unit stops sending the loopback command automatically after
10 seconds. You cannot stop the Remote Send Line Loopback test manually.
The Remote Send Line Loopback cannot be started when any other loopback or
a Send and Monitor 511 test is active on the network interface.
Remote Send Line Loopback cannot be used in cross-connect mode.
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Testing
Send and Monitor 511
The Send and Monitor 511 test causes the local and remote units to send a 511
test pattern to each other. Also, for DSX-1 models, all ones are sent to DSX-1
time slots connected to the DSL port being tested.
The front panel Test LEDs of both units light up during the test. The duration and
results of the test are displayed on the Network Test screen to the unit that
initiated the test.
NOTE:
The Send and Monitor 511 test is not a loopback test. Each unit
independently sends and monitors a 511 pattern.
511
CAP
CAP
511
Mon
Pattern
T1/E1
CAP
CAP
T1/E1
511
Gen
DSX-1
or
G.703
Port
AIS
511
Pattern
LIU
LIU
AIS
511
Mon
Transceiver
511
Gen
Transceiver
Framer
Framer
Framer
Framer
99-16616
" Procedure
To run a Send and Monitor 511 test:
1. Position the cursor at the Start command next to Send and Monitor 511 on
the Network & DSX-1 or Network & G.703 Tests screen.
2. Press Enter.
The Start command is changed to Stop.
3. To manually stop the test, verify that the cursor is positioned at the Stop
command.
4. Press Enter.
When a Send and Monitor 511 test is active, a count of bit errors is displayed next
to the test duration, and the ResetMon virtual function key is available for use.
Type r or R or select the ResetMon virtual function key to reset the error count.
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Testing
Device Tests
The Device Tests branch is used to access the only card-level test, the Lamp
Test. To access the Device Tests screen, follow this menu selection sequence:
Main Menu → Test → Device Tests
main/test/card
Model: 87xx
DEVICE TESTS
Test
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Lamp Test: Start Inactive
Command
Status
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Lamp Test
The Lamp Test determines whether all LEDs are lighting and functioning properly.
" Procedure
To test the LEDs:
1. Position the cursor at the Start command next to Lamp Test on the Device
Tests screen.
2. Press Enter.
The Start command is changed to Stop. During the Lamp Test, all LEDs blink
simultaneously every second. When you stop the Lamp Test, the LEDs are
restored to their normal condition.
3. To stop the Lamp Test, position the cursor at the Stop command.
4. Press Enter.
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Testing
Ending an Active Test
Except for the Remote Send Line Loopback and Remote DCLB, a test initiated by
the user can be ended by the user. Tests can also be terminated automatically by
enabling the Test Timeout option from the System Options Menu.
H
A Test Timeout option is available to automatically terminate a user-initiated
Loopback or Pattern test (as opposed to manually terminating a test) after it
has been running a specified period of time. The default is 10 minutes.
Refer to Table A-7, System Options, in Appendix A, Configuration Options.
H
H
On each test screen is a Command column. To manually stop the test, press
Enter when the cursor is on the Stop command.
Use the Abort All Tests selection from the Test menu to stop all tests running
on all interfaces, with the exception of network-initiated loopbacks. Command
Completeappears when all tests on all interfaces have been terminated.
An aborted test may continue to run for a few seconds as the abort command
is sent to the remote end and processed.
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Testing
Telco-Initiated Tests
Hotwire 8747 and 8777 Termination Units support Telco-initiated tests as shown
in the following table.
Activation and
Deactivation
Remote Line
Loopback
Line Loopback
Supported
Payload Loopback
Not Applicable
Supported
In-Band Signal
Bit-Oriented
Not Supported
Supported
Supported
Message-Oriented
Not Applicable
Not Supported
Not Applicable
Telco-Initiated Line Loopback
Hotwire 8747 and 8777 Termination Units support line loopback as specified in
AT&T TR 54016, AT&T TR 62411, and ANSI T1.403. A Telco-Initiated Line
Loopback loops the received signal on the DSX-1 interface back to the DSX-1
interface without modification. Framing, CRC, and FDL bits are returned
unaltered, and no BPVs or other line coding errors are removed. DSL time slots
mapped to the DSX-1 port are sent all ones.
CAP
CAP
T1
DSL
Port
DSX-1
Port
LIU
Telco
All Ones
Transceiver Framer
Framer
99-16252
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Testing
Telco-Initiated Payload Loopback
The Hotwire 8747 and 8777 Termination Units support payload loopback as
specified in AT&T TR 54016 and ANSI T1.403. A Telco-initiated line loopback
loops the received signal on the DSX-1 interface back to the DSX-1 interface.
Framing, CRC, and FDL bits are regenerated at the point of the loopback, and
BPVs are removed. DSL time slots mapped to the DSX-1 port are sent all ones.
CAP
CAP
T1
DSL
Port
DSX-1
Port
LIU
Telco
All Ones
Transceiver Framer
Framer
99-16253
Telco-Initiated Remote Line Loopback
If Remote Telco Loopback is enabled, a Telco-Initiated Line Loopback loops
received data at the remote unit and passes it back to the Telco through the local
unit.
The following figure shows the data flow for a remote Telco-initiated payload
loopback.
Local
Remote
CAP
CAP
T1
T1
CAP
CAP
DSX-1
Port
DSX-1
Port
LIU
LIU
DSL
Telco
AIS
Transceiver Framer
Framer
Framer
Framer Transceiver
99-16626
Telco-Initiated Remote Line Loopback cannot be used in cross-connect mode.
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Transferring Code and
Configurations Using TFTP
9
Download Code
The Download Code screen allows you to download firmware from a TFTP
server. To access the Download Code screen, follow this menu selection
sequence:
Main Menu → Control → Download Code
main/control/download_code
Slot: 4
Model: 87xx
DOWNLOAD CODE
Image File Name:
TFTP Server IP Address: 000.000.000.000
Destination: DSL1
Clear
Clear
Immediately Apply Download: No
Start Transfer: Yes
Packets Sent: 0000000
Packets Received: 0000000
Bytes Sent: 0000000
Bytes Received: 0000000
Transfer Status: Transfer Pending
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
MainMenu
Exit
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Transferring Code and Configurations Using TFTP
" Procedure
To download firmware:
1. Position the cursor in the Image File Name field. Type the name of the file to
be downloaded.
The file name may be a regular path name expression of directory names
separated by a forward slash (/) ending with the file name. The total path
name length can be up to 128 characters.
2. Position the cursor in the TFTP Server IP Address field. Enter the TFTP
server IP address.
The first three digits of the IP address cannot be 000 or greater than 223.
3. Position the cursor in the Immediately Apply Download field. If you would like
the download to be effective immediately, select Yes.
4. Position the cursor at the Start Transfer field. Use the spacebar to select Yes.
Press Enter.
When the data transfer is complete, the Transfer Status field changes to
Completed successfully.
Applying the Download
If you specified No (the default) in the Immediately Apply Download field in Step
3 above, you must now apply the download.
" Procedure
To apply the downloaded firmware:
1. Press the Escape key to return to the Control menu. Select Apply Download.
2. On the Apply Download screen, type Yes to reset the card and activate the
code.
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Transferring Code and Configurations Using TFTP
Configuration Loader
The Configuration Loader screen allows you to upload configurations to and
download configurations from a TFTP server. To access the Configuration Loader
screen, follow this menu selection sequence:
Main Menu → Configuration → Configuration Loader
main/config/config_loader
Slot: 4
Model: 87xx
CONFIGURATION LOADER
Image File Name:
TFTP Server IP Address:
TFTP Transfer Direction:
Destination:
Clear
Clear
000.000.000.000
Download from Server
DSL1
Start Transfer:
Yes
Packets Sent: 0000000
Packets Received: 0000000
Bytes Sent: 0000000
Bytes Received: 0000000
Transfer Status: Transfer Pending
Activate new configuration? No
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
" Procedure
To upload or download a configuration:
1. Position the cursor in the Image File Name field. Type the name of the file to
be downloaded, or the name to be used for the file to be uploaded.
The file name may be a regular path name expression of directory names
separated by a forward slash (/) ending with the file name. The total path
name length can be up to 128 characters.
— DOS machine: If the TFTP server is hosted by a DOS machine, then
directory and filenames must consist of eight or less characters with an
optional suffix of up to three characters. The system will automatically
upload the configuration file and create directories and filenames as
needed.
— UNIX machine: If your server is hosted by a UNIX machine, the
configuration file you name must already exist. It will not be created on
the UNIX system by the TFTP server. It is critical that you work with your
system administrator to plan the naming conventions for directories,
filenames, and permissions so that anyone using the system has read
and write permissions.
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Transferring Code and Configurations Using TFTP
2. Position the cursor in the TFTP Server IP Address field. Enter the TFTP
server IP address.
The first three digits of the IP address cannot be 000 or greater than 223.
3. Position the cursor in the TFTP Transfer Direction field. Use the spacebar to
select Download from Server or Upload to Server.
4. Position the cursor in the Destination field. Use the spacebar to select a
network destination for the TFTP server. Select DSL if the TFTP server
destination is the DSL link port or IMC (in-band management channel) if the
TFTP destination is the Management port of the management card.
5. Position the cursor at the Start Transfer field. Use the spacebar to select Yes.
Press Enter.
When the data transfer is complete, the Transfer Status field changes to
Completed successfully.
6. Position the cursor at the Activate new configuration?prompt and
select Yes to activate a new downloaded configuration. Press Enter.
NOTE:
The following options are not changed:
— DSL Mode and Telnet Session configuration options
— Peer IP address
You must change these settings with the appropriate configuration menus
after the new configuration is activated. See Table A-1, Network Interface
Options, Table A-7, System Options, and Table A-11, Telnet Session Options,
in Appendix A, Configuration Options.
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Configuration Options
A
Overview
The tables in this appendix summarize the configuration options accessed when
you select Configuration on the Main Menu. The configuration options are
arranged into groups based upon functionality.
Select . . .
Network
DSX-1
To Access the . . .
To Configure the . . .
Network Interface Options, Table A-1
DSX-1 Interface Options, Table A-4
DSL interface ports.
DSX-1 interface ports
(Models 8747 and 8777).
G.703
G.703 Interface Options, Table A-5
Copy Ports Options, Table A-6
G.703 interface ports
(Model 8779).
Copy Ports
DSL network and DTE
interface ports by copying
options from port to port.
System
Options
System Options, Table A-7
General system options of
the unit.
System Clock
System Clock Options, Table A-8
LTU system clock options.
Cross-Connect Cross-Connect Mode Options,
Table A-9
DS1 and DS0
cross-connect ports.
Assign Time Slots Options, Table A-10
Management
and
Communication
H Telnet Session Options, Table A-11
Management support of the
unit through SNMP and
Telnet.
H General SNMP Management
Options, Table A-12
H SNMP NMS Security Options,
Table A-13
H SNMP Traps Options, Table A-14
NOTE:
All changes to configuration options must be saved. Refer to Saving
Configuration Options in Chapter 3, Initial Startup and Configuration.
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Configuration Options
Network Interface Options Menu
For Network Interface Options, refer to Table A-1. To access the Network
Interface Options screen, follow this menu selection sequence:
Main Menu → Configuration → Current Configuration → Network
main/config/network
Slot: 18
Model: 87xx
Port 2
NETWORK INTERFACE OPTIONS
Port Status
Margin Threshold:
Enable
0db
Excessive Error Rate Threshold: 1E–6
AutoRate:
Disable
DSL Line Rate:
1552 kbps
1536 kbps
0dB
EIA-530 Payload Rate
Transmit Attenuation
Peer IP Address:
111.255.255.000 Clear
DS0 Cross Connect Line Framing: ESF
Circuit Identifier:
Clear
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
Table A-1. Network Interface Options (1 of 3)
Port Status
Possible Settings: Enable, Disable
Default Setting: Enable
Determines whether the port can be configured and used.
Enable – The port can be configured and used.
Disable – The port cannot be configured or used.
Margin Threshold
Possible Settings: –5db, –4db, –3db, –2db, –1db, 0db, 1db, 2db, 3db, 4db, 5db, 6db,
7db, 8db, 9db, 10db
Default Setting: 0db
Determines the level, expressed in decibels, at which a signal-to-noise margin condition
is recognized.
–5db to 10db – Sets the margin threshold to this value.
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Configuration Options
Table A-1. Network Interface Options (2 of 3)
Excessive Error Rate Threshold
Possible Settings: 1E–4, 1E–5, 1E–6, 1E–7, 1E–8, 1E–9
Default Setting: 1E–6
Determines the error rate at which an excessive error rate (EER) condition is
recognized. The rate is the ratio of the number of CRC errors to the number of bits
received in a certain period.
AutoRate
Possible Settings: Enable, Disable
Default Setting: Disable
Determines whether the unit automatically adjusts to the best line rate for conditions, or
is fixed at the rate in the DSL Line Rate field. The automatically set rate cannot exceed
Max DSL AutoRate.
H AutoRate is only available when the unit is configured as an LTU.
Enable – The LTU adjusts to the best line rate.
Disable – The LTU’s line rate is the DSL Line Rate selected.
DSL Line Rate
Possible Settings (Models 8747, 8777): 144, 272, 400, 528, 784, 1040, 1552
Default Setting: 1552
Possible Settings (Model 8779): 144, 272, 400, 528, 784, 1040, 1552, 2064
Default Setting: 2064
Determines the fixed line rate of the LTU when AutoRate is disabled. See Tables A-2
and A-3 for information about maximum payload rates for different DSL line rates.
H DSL Line Rate is only available when the unit is configured as an LTU and
AutoRate is disabled.
144 to 2064 – The fixed DSL Line Rate, in kbps.
Max DSL AutoRate
Possible Settings (Models 8747, 8777): 144, 272, 400, 528, 784, 1040, 1552
Default Setting: 1552
Possible Settings (Model 8779): 144, 272, 400, 528, 784, 1040, 1552, 2064
Default Setting: 2064
Determines the maximum rate the unit can AutoRate to. See Tables A-2 and A-3 for
information about maximum payload rates for different DSL line rates.
H Max DSL AutoRate is only available when the unit is configured as an LTU and
AutoRate is enabled.
144 to 2064 – The AutoRate ceiling, in kbps.
EIA-530 Payload Rate
Possible Settings: 64, 128
Default Setting: 128
Specifies the synchronous port speed of the remote NTU if the NTU is an EIA-530
model and the DSL line rate is 144 kbps. At higher line rates the EIA-530 NTU runs at
the highest payload rate possible.
H EIA-530 Payload Rate is only available when the unit is configured as an LTU.
64 or 128 – The synchronous port speed of the remote NTU, in kbps.
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Configuration Options
Table A-1. Network Interface Options (3 of 3)
Transmit Attenuation
Possible Settings: 0dB, 3dB, 6dB
Default Setting: 0dB
Determines the amount the transmit power of the unit is reduced to accommodate a
short line length. 0dB denotes no attenuation.
0dB – The full transmit power is used.
3dB or 6dB – The transmit power is reduced the specified amount.
Peer IP Address (LTU Only)
Possible Settings: 001.000.000.000 – 223.255.255.255, Clear
Default Setting: 000.000.000.000
Specifies the peer IP address providing the remote management link on the DSL loop.
H Peer IP Address is only available when the unit is configured as an LTU and the
unit is in not running in IP Conservative mode.
Address Field – (001.000.000.000 – 223.255.255.255) – Enter an address for the peer
unit. The range for the first byte is 001 to 223, with the exception of 127. The range for
the remaining three bytes is 000 to 255. The IP address must be in the same subnet as
the MCC backplane address.
Clear – Clears the IP address and sets to all zeros.
DS0 Cross Connect Line Framing (Model 8777, LTU only)
Possible Settings: ESF, D4
Default Setting: ESF
Specifies the framing format to be used at the DSL interface for DS0 cross connects,
regardless of the framing format specified for the DSX-1 ports.
H DS0 Cross Connect Line Framing is only available on the Model 8777, only when
the unit is configured as an LTU, and only when the port is in a DS0 cross
connect.
ESF – ESF framing formatting is used for transmitted and received data over the DSL
Interface.
D4 – D4 framing format is used for transmitted and received data over the DSL
Interface.
Circuit Identifier
Possible Settings: [ASCII Text]
Default Setting: [blank]
Uniquely identifies the circuit number of the transmission vendor’s DSL line for
troubleshooting purposes.
[ASCII Text] – Enter a maximum of 128 characters. All printable ASCII characters
except ^ (caret) are allowed.
Clear – Clears the field.
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Configuration Options
Tables A-2 and A-3 provides the maximum payload rates achievable for each
DSL line rate and the number of time slots required to achieve that payload rate.
For G.703, the payload rate depends on whether you are using signaling (time
slots 0 and 16) or data only (time slot 0).
Table A-2. Payload Rates and DSL Line Rates for Models 8747 and 8777
DSX-1-to-DSX-1 (To
7974-A2, 8747, 8777)
DSX-1-to-DSX-1
(To 7974-A1, 8774)
DSX-1- to-EIA-530-A
Maximum
Payload
Rate
Maximum
Payload
Rate
Maximum
Payload
Rate
DSL
Line
Rate
(kbps)
Time
Slots
Time
Slots
Time
Slots
(kbps)
(kbps)
(kbps)
1552
1040
784
528
400
272
144
1536
1024
768
512
384
256
128
24
16
12
8
1536
960
704
448
320
–
24
15
11
7
1536
1024
768
512
384
256
128
24
16
12
8
6
5
6
4
–
4
2
–
–
2
Table A-3. Payload Rates and DSL Line Rates for Model 8779
Voice Mode
Data Mode
Data Mode
G.703-to-G.703
G.703-to-G.703
G.703-to-EIA-530-A
Maximum
Payload Rate
(kbps)
Maximum
Payload Rate
(kbps)
Maximum
Payload Rate
(kbps)
Time
Slots
Time
Slots
Time
slots
DSL Line
Rate (kbps)
2064
1552
1040
784
1920
1408
896
640
384
256
128
–
30
22
14
10
6
1984
1472
960
704
448
320
192
64
31
23
15
11
7
1984
1536
1024
768
31
24
16
12
8
528
512
400
4
5
384
6
272
2
3
256
4
144
–
1
128
2
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Configuration Options
DSX-1 Interface Options
For DSX-1 Interface Options (Models 8747 and 8777), refer to Table A-4. To
access the DSX-1 Interface Options screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From → DSX-1
main/config/DSX-1
Slot: 18
Port 2
Model: 87xx
DSX-1 INTERFACE OPTIONS
Port Status:
Line Coding:
Enable
B8BS
Line Framing:
ESF
Line Equalization:
0 -133
Excessive Error Rate Threshold: 1E-4
Primary Clock Source: DSX-1
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
Table A-4. DSX-1 Interface Options (1 of 2)
Port Status
Possible Settings: Enable, Disable
Default Setting: Enable
Determines whether the port can be configured and used.
Enable – The port can be configured and used.
Disable – The port cannot be configured or used. Configuration fields for the port are
inaccessible, no alarms or traps associated with the port are generated, and the LED
associated with the port is OFF.
Cross-connections are not cleared when a port is disabled.
Line Coding Format
Possible Settings: AMI, B8ZS
Default Setting: B8ZS
Specifies the line coding format to be used by the DSX-1 interface.
AMI – Indicates the line coding format used by the DSX-1 interface is Alternate Mark
Inversion (AMI).
B8ZS – Indicates the line coding format used by the DSX-1 interface is B8ZS.
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Configuration Options
Table A-4. DSX-1 Interface Options (2 of 2)
Line Framing
xx
Possible Settings: ESF, D4
Default Setting: ESF
Specifies the framing format to be used by the DSX-1 interface.
H Line Framing is only available when the unit is configured as an LTU. The NTU is
automatically configured to match the framing format used by the LTU.
ESF – ESF framing formatting is used for transmitted and received data over the
DSX-1 Interface.
D4 – D4 framing format is used for transmitted and received data over the DSX-1
Interface.
Line Equalization
Possible Settings: 0-133, 133-266, 266-399, 399-533, 533-655
Default Setting: 0-133
Compensates for signal distortion for a DSX-1 signal over a given distance.
0–133 feet – Provides equalization for a cable length up to 133 feet.
133–266 feet – Provides equalization for a cable length up to 266 feet.
266–399 feet – Provides equalization for a cable length up to 399 feet.
399–533 feet – Provides equalization for a cable length up to 533 feet.
533–655 feet – Provides equalization for a cable length up to 655 feet.
Excessive Error Rate Threshold
Possible Settings: 1E–4, 1E–5, 1E–6, 1E–7, 1E–8, 1E–9
Default Setting: 1E–4
Determines the error rate at which an excessive error rate (EER) condition is
recognized. The rate is the ratio of the number of CRC errors to the number of bits
received in a certain period.
1E–4 – 1E-9– The rate at which EER is recognized.
Primary Clock Source
Possible Settings: Internal, DSX-1
Default Setting: DSX-1
Specifies where the unit will derive its timing from.
H Primary Clock Source is available only when the unit is configured as an LTU and
the port is not cross-connected. If DSL Line Rate is set lower than 1552 kbps,
Primary Clock Source is forced to DSX-1 and cannot be changed.
Internal – Timing is derived from the internal oscillator.
DSX-1 – Timing is derived from the DSX-1 interface.
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Configuration Options
G.703 Interface Options
For G.703 Interface Options (Model 8779), refer to Table A-5. To access the
G.703 Interface Options screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From → G.703
main/config/G.703
Slot: 4
Port: 2
Model: 87xx
G.703 INTERFACE OPTIONS
Port Status:
Enable
Framed
HDB3
noCRC4
Data
Framing:
Line Coding:
Line Framing:
Time Slot 16:
Primary Clock Source:
G703
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
Table A-5. G.703 Interface Options (1 of 2)
Port Status
Possible Settings: Enable, Disable
Default Setting: Enable
Determines whether the port can be configured and used.
Enable – The port can be configured and used.
Disable – The port cannot be configured or used. Configuration fields for the port are
inaccessible, no alarms or traps associated with the port are generated, and the LED
associated with the port is OFF.
Cross-connections are not cleared when a port is disabled.
Framing
Possible Settings: Framed, Unframed
Default Setting: Framed
Specifies whether G.704 framing is used for the G.703 interface.
Framed – The unit conforms to G.704 framing, using time slot 0.
Unframed – G.704 framing is disabled, and the port is forced to DS1 Bypass mode.
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Configuration Options
Table A-5. G.703 Interface Options (2 of 2)
Line Coding
Possible Settings: AMI, HDB3
Default Setting: HDB3
Specifies the line coding format to be used by the G.703 interface.
AMI – Indicates the line coding format used by the G.703 interface is Alternate Mark
Inversion (AMI).
HDB3 – Indicates the line coding format used by the G.703 interface is HDB3.
Line Framing
Possible Settings: CRC4, noCRC4
Default Setting: noCRC4
Specifies the framing format to be used by the G.703 interface.
H Line Framing is only available when the unit is configured as an LTU, AutoRate is
disabled, and the DSL Line rate is 2064 kbps. Otherwise the noCRC4 framing
format is used. The NTU is automatically configured to match the framing format
used by the LTU.
CRC4 – CRC4 framing formatting is used for transmitted and received data over the
G.703 Interface.
noCRC4 – Non-CRC4 framing format is used for transmitted and received data over the
G.703 Interface.
Time Slot 16
Possible Settings: Signaling-CAS, Signaling-CCS, Data
Default Setting: Signaling-CCS
Specifies whether the G.703 interface is used for voice or data.
Signaling-CAS – Time slot 16 contains Channel Associated Signaling (CAS)
information (the unit is in voice mode).
Signaling-CCS – Time slot 16 contains Common Channel Signaling (CCS) information
(the unit is in voice mode).
Data – Time slot 16 contains data (the unit is in data mode).
Primary Clock Source
Possible Settings: Internal, G.703
Default Setting: Internal
Determines the primary clock source for the unit.
H Primary Clock Source is available only when the unit is configured as an LTU.
Internal – Timing is derived from the internal oscillator.
G.703 – Timing is derived from the G.703 interface.
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Configuration Options
Copy Ports Options
You can copy the configuration options of one DSX-1 interface and DSL loop to
another using the Copy Ports screen. For Copy Ports options, refer to Table A-6.
To access the Copy Ports screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From → Copy Ports
main/config/copy
Slot: 18
Model: 87xx
COPY PORTS
From: Port 1
To:
Port 2
Perform Copy
Perform Copy Then Increment
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
ESC for previous menu MainMenuExit
Save
Table A-6. Copy Ports Options
From: Port n
Possible Settings: 1, 2, 3, 4, 5, 6, 7, 8
Default Setting: 1
Controls the source of the configuration options.
1 to 8 – The configuration of the selected port is copied.
To: Port y
Possible Settings: 1, 2, 3, 4, 5, 6, 7, 8, All
Default Setting: 1
Controls the target of the configuration options.
1 to 8 – The configuration of the selected port is replaced. If Perform Copy Then
Increment is selected, the port number is incremented by 1 after the copy.
All – The configurations of all ports are replaced by the configuration of the selected
From: Port.
NOTE: Peer IP Address and Circuit Identifier are not copied.
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Configuration Options
System Options
For System Options, refer to Table A-7. To access the System Options screen,
follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From → System
main/config/system
Slot: 18
Model: 87xx
SYSTEM OPTIONS
DSL Mode:
LTU
Test Timeout:
Test Duration (min):
Telco Initiated Loopbacks:
Enable
10
Enable
(Models 8747, 8777)
(Models 8747, 8777)
(Model 8779)
Remote Telco Line Loopback: Disabled
G.703 Line Termination 120 Ohm
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
Table A-7. System Options (1 of 2)
DSL Mode
Possible Settings: LTU, NTU
Default Setting: LTU
Controls whether the unit is configured as a control unit or tributary unit.
LTU – The unit is configured as a control unit (Line Termination Unit).
NTU – The unit is configured as a tributary unit (Network Termination Unit). This unit will
request its IP address from the LTU during establishment of the PPP link.
NOTE: Changing this option will reset the card.
Test Timeout
Possible Settings: Enable, Disable
Default Setting: Enable
Allows tests to end automatically. The feature should be enabled when the unit is
remotely managed, so that control can be regained after a test is accidentally executed.
Enable – Loopback and pattern tests end when test duration is reached.
Disable – Tests run until manually terminated from the Network Tests screen or
remotely (network initiated tests). Refer to Running Network Tests in Chapter 8, Testing.
Test Duration (min)
Possible Settings: 1–120
Default Setting: 10
Number of minutes for a test to be active before automatically ending.
H Test Duration (min) option appears when Test Timeout is enabled.
1 to 120 – Amount of time in minutes for a test to run before terminating.
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Configuration Options
Table A-7. System Options (2 of 2)
Telco Initiated Loopback
Possible Settings (Models 8747, 8777): Enable, Disable
Default Setting: Enable
Determines if the unit will respond to Telco loopback commands on the DSX-1 interface.
See Telco-Initiated Tests in Chapter 8, Testing.
Enable – The unit will respond to Telco loopback commands.
Disable – The unit will not respond to Telco loopback commands.
Remote Telco Line Loopback
Possible Settings (Models 8747, 8777): Enable, Disable
Default Setting: Disable
Determines if the unit will perform a Telco initiated loopback on just the local unit or if
the loopback will be performed on the remote DSL unit. See Telco-Initiated Tests in
Chapter 8, Testing.
Enable – The loopback will be in the remote unit.
Disable – The loopback will be local.
G.703 Line Termination
Possible Settings (Model 8779): 75 ohms, 120 ohms
Default Setting: 120 ohms
Specifies the impedance of the G.703 interface
75 ohms – The G.703 interface impedance is 75 ohms unbalanced.
120 ohms – The G.703 interface impedance is 120 ohms balanced.
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Configuration Options
System Clock
The Primary and Secondary System Clock References determine the clock used
by ports in a cross-connect configuration. For System Clock configuration
options, refer to Table A-8. To access the System Clock screen, follow this menu
selection sequence:
Main Menu → Configuration → Load Configuration From → System Clock
main/config/system_clock
Slot: 18
Model: 87xx
SYSTEM CLOCK
Primary System Clock Reference
Secondary System Clock Reference
Internal
Internal
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
All ports configured as system clock sources must be traceable to the same clock
reference. Ports in a cross-connect configuration that are not providing timing
themselves receive their timing from the system clock reference. All ports in a
cross-connect configuration are therefore synchronized to the system clock
reference.
The following table shows the system clock reference combinations permitted for
LTUs and NTUs. Choose the most accurate clock available for the Primary
System Clock Reference.
If the Primary System Clock
Reference is . . .
The Secondary System Clock
Reference must be . . .
Device
LTU
DSX-1 or G.703 port in
cross-connect mode
H DSX-1 or G.703 port in DS1 Bypass
mode, or
H Internal
DSX-1 or G.703 port in DS1
Bypass mode
H DSX-1 or G.703 port in DS1 Bypass
mode, or
H Internal
Internal
Internal
NTU
DSL port in cross-connect mode
Internal
DSL port in cross-connect mode
Internal
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Configuration Options
When a system clock source fails or is misconfigured, an alarm is reported.
Secondary clock failures are not reported unless the primary clock has also
failed. When the primary clock fails, clocking is switched to the secondary clock
source, if available. If a secondary clock is not available, the clock switches to
secondary holdover mode. In holdover mode, the system attempts to generate
timing which is consistent with the last clock reference. A switch is made back to
the primary clock when it becomes available.
Figure A-1 shows clocking in an LTU.
DSX-1/
G.703
Driver
DSL
Transceiver
Framer
Framer
Cross-Connect
System Timing
System
Timing
Module
DSX-1/G.703 Port
Internal Oscillator
99-16627
Figure A-1. System Timing
Figure A-2 shows sample system clock configurations.
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Configuration Options
LTU
LTU
Primary Clock*
G.703 Port 1
G.703 Port 2
G.703 Port 3
G.703 Port 4
G.703 Port 5
G.703 Port 6
G.703 Port 7
G.703 Port 8
G.703 Port 1
G.703 Port 2
G.703 Port 3
G.703 Port 4
G.703 Port 5
G.703 Port 6
G.703 Port 7
G.703 Port 8
DS0 or DS1
DS0 or DS1
Cross Connect
Cross Connect
Secondary Clock*
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
* Must be traceable to the same clock source
LTU
NTU
Primary Clock
G.703 Port 1
G.703 Port 2
G.703 Port 3
G.703 Port 4
G.703 Port 5
G.703 Port 6
G.703 Port 7
G.703 Port 8
G.703 Port 1
G.703 Port 2
G.703 Port 3
G.703 Port 4
G.703 Port 5
G.703 Port 6
G.703 Port 7
G.703 Port 8
DS0 or DS1
DS0 or DS1
Cross Connect
Cross Connect
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
LTU
NTU
Primary Clock*
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
G.703 Port 1
G.703 Port 2
G.703 Port 3
G.703 Port 4
G.703 Port 5
G.703 Port 6
G.703 Port 7
G.703 Port 8
G.703 Port 1
G.703 Port 2
G.703 Port 3
G.703 Port 4
G.703 Port 5
G.703 Port 6
G.703 Port 7
G.703 Port 8
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
Secondary Clock*
* Must be traceable to the same clock source
00-16650
Figure A-2. System Clock Configuration Examples
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Configuration Options
Table A-8. System Clock Options
Primary System Clock Reference
Possible Settings (LTU, Models 8747, 8777): DSX-1 Port 1, DSX-1 Port 2,
DSX-1 Port 3, DSX-1 Port 4, DSX-1 Port 5, DSX-1 Port 6, DSX-1 Port 7,
DSX-1 Port 8, Internal
Default Setting: Internal
Possible Settings (LTU, Model 8779): G.703 Port 1, G.703 Port 2, G.703 Port 3,
G.703 Port 4, G.703 Port 5, G.703 Port 6, G.703 Port 7, G.703 Port 8, Internal
Default Setting: Internal
Possible Settings (NTU): DSL Port 1, DSL Port 2, DSL Port 3,
DSL Port 4, DSL Port 5, DSL Port 6, DSL Port 7, DSL Port 8, Internal
Default Setting: Internal
Determines the source of system timing. Select the most accurate clock available.
DSX-1 or G.703 Port n – Timing is derived from the specified port. To be a valid clock
source, the port must be enabled and must derive its timing from the DSX-1 or G.703
network.
DSL Port n – Timing is derived from the specified port. The port must be enabled and in
a cross-connection.
Internal – Timing is derived from the internal oscillator, which provides a Stratum 4
reference.
Secondary System Clock Reference
Possible Settings (LTU, Models 8747, 8777): DSX-1 Port 1, DSX-1 Port 2,
DSX-1 Port 3, DSX-1 Port 4, DSX-1 Port 5, DSX-1 Port 6, DSX-1 Port 7,
DSX-1 Port 8, Internal
Default Setting: Internal
Possible Settings (LTU, Model 8779): G.703 Port 1, G.703 Port 2, G.703 Port 3,
G.703 Port 4, G.703 Port 5, G.703 Port 6, G.703 Port 7, G.703 Port 8, Internal
Default Setting: Internal
Possible Settings (NTU): DSL Port 1, DSL Port 2, DSL Port 3,
DSL Port 4, DSL Port 5, DSL Port 6, DSL Port 7, DSL Port 8, Internal
Default Setting: Internal
Determines the source of system timing if the primary system clock source fails. If the
secondary clock source fails, the unit switches to secondary holdover mode.
DSX-1 or G.703 Port n – Timing is derived from the specified port. To be a valid clock
source, the port must be enabled and must derive its timing from the DSX-1 or G.703
network.
DSL Port n – Timing is derived from the specified port. The port must be enabled and in
a cross-connection.
Internal – Timing is derived from the internal oscillator, which provides a Stratum 4
reference.
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Configuration Options
Cross-Connect
For Cross-Connect configuration options, refer to Table A-9. To access the
Cross-Connect screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From → Cross-Connect
main/config/cross_connect
Slot: 18
Model: 87xx
CROSS-CONNECT CONFIGURATION
Set Cross-Connect Mode
Assign Time Slots
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
Select:
H
H
Set Cross-Connect Mode to configure or disable the ports.
Assign Time Slots to assign time slots for each cross-connected port.
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Configuration Options
Set Cross-Connect Mode
For Cross-Connect Mode configuration options, refer to Table A-9. To access the
Set Cross-Connect Mode screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration
From → Cross-Connect → Set Cross-Connect Mode
main/config/xconnect_mode
Slot: 18
Model: 87xx
CROSS-CONNECT MODE
DSX-1 | G.703 Port
MODE
DSL Port
1
2
3
4
5
6
7
8
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
DS1 Bypass
1
2
3
4
5
6
7
8
Assign_DS0s
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_All
Exit
If any port Mode is DS0 Cross-connect, selecting Assign_DS0s causes the
Assign Time Slots screen to be displayed.
The Clear_All command changes the Mode of all enabled ports to DS0
Cross-Connect. All DSL port numbers and time slot assignments are cleared.
For information about the cross-connection system, see Chapter 4,
Cross-Connecting Ports.
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Configuration Options
Table A-9. Cross-Connect Mode Options
(Cross-Connect Mode)
Possible Settings: DS1 Bypass, DS1 Cross-connect, DS0 Cross-connect,
Not Assigned, Disabled, Unframed
Default Setting: DS1 Bypass
Determines the cross-connect mode for the port.
DS1 Bypass – The entire DSX-1 or G.703 interface is connected directly to the DSL
interface.
DS1 Cross-connect – The entire DSX-1 or G.703 interface is connected through
cross-connect circuitry to the DSL port.
DS0 Cross-connect – Individual time slots of the DSX-1 or G.703 interface may be
connected to any time slot of any of the DSL interfaces.
Unassigned – None of the time slots associated with the port are assigned.
Unframed – (Model 8779 only.) Framing is disabled on the port. Since there are no time
slots, the port is set to DS1 Bypass mode. This value is displayed but cannot be
entered.
Disabled – The DSX-1 or G.703 port is disabled. No time slot assignments can be
made to the port. To enable the port use the DSX-1 Interface or G.703 Interface screen.
This value is displayed but cannot be entered.
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Configuration Options
Assign Time Slots
For Assign Time Slots configuration options, refer to Table A-10. To access the
Assign Time Slots screen, select Assign_DS0s on the Cross-Connect Mode
screen, or follow this menu selection sequence:
Main Menu → Configuration → Load Configuration
From → Cross-Connect → Assign Time Slots
The following screen is displayed for a DSX-1 port:
main/config/cross_connect/timeslot
Slot: 18
DSX-1 Port: 1
TS01
Model: 87xx
ASSIGN TIME SLOTS
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS06
TS13
TS20
TS07
d
D
D
D
D
d
d
d
d
D
D
D
D
d
d
d
d
D
D
D
D
d
d
d
d
D
D
D
d
d
d
D
D
D
d
d
d
D
D
D
d
d
d
D
D
D
TS08
TS15
TS22
TS12
TS19
TS14
d
TS21
d
Key: D = DSL, X = DSX-1
d = data, v = voice
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_All
Exit
The following screen is displayed for a G.703 port:
main/config/cross_connect/timeslot
Slot: 18
Model: 87xx
ASSIGN TIME SLOTS
G.703 Port: 1
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
d
D
D
D
D
D
d
d
d
d
d
D
D
D
D
D
d
d
d
d
d
D
D
D
D
D
d
d
d
d
d
D
D
D
D
d
d
d
d
D
D
D
D
d
d
d
d
D
D
D
D
d
d
d
d
D
D
D
D
TS14
d
TS21
d
TS28
d
Key: D = DSL, G = G.703
d = data, v = voice
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_All
Exit
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Configuration Options
The following screen is displayed for a DSL port on a DSX-1 unit:
main/config/cross_connect/timeslot
Slot: 18
Model: 87xx
ASSIGN TIME SLOTS
DSL
Port: 1
TS01
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS06
TS13
TS20
TS07
d
X
X
X
X
d
d
d
d
X
X
X
X
d
d
d
d
X
X
X
X
d
d
d
d
X
X
X
d
d
d
X
X
X
d
d
d
X
X
X
d
d
d
X
X
X
TS08
TS15
TS22
TS12
TS19
TS14
d
TS21
d
Key: D = DSL, X = DSX-1
d = data, v = voice
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Clear_ALl
Exit
The Clear_All command clears all the time slot assignments for the port.
For an example showing how to configure the cross-connection system, see
Chapter 4, Cross-Connecting Ports.
TS01
D 1 01 d
_ __ _
Port Type
(D = DSL
G = G.703
X = DSX-1)
d (Data) or v (Voice)
Time Slot Number
Port Number
(1–8)
(1–31)
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Configuration Options
Table A-10. Assign Time Slots Options (1 of 1)
(DSX-1/DSL or G.703/DSL Selection)
Possible Settings (Models 8747, 8777): DSX-1, DSL
Default Setting: DSX-1
Possible Settings (Model 8779): G.703, DSL
Default Setting: G.703
Determines the port whose time slots are displayed. The unit can be configured using
the viewpoint of the DSX-1 or G.703 interface, or the DSL network interface.
DSX-1 or G.703 – Time slots for the specified DTE port are displayed.
DSL – Time slots for the specified DSL port are displayed.
(Port Type )
Possible Settings (Models 8747, 8777): D, X
Default Setting: D
Possible Settings (Model 8779): D, G (see note)
Default Setting: D
Shows the type of port to which this time slot is connected.
D – The time slot is connected to a DSL port.
G – The time slot is connected to a G.703 port (Model 8779).
X – The time slot is connected to a DSX-1 port (Models 8747, 8777).
(Port Number)
Possible Settings: 1–8
Default Setting: [Blank]
Determines the port to which this time slot is connected.
(Time Slot Number)
Possible Settings (Models 8747, 8777): 1–24
Default Setting: [Blank]
Possible Settings (Model 8779): 1–31
Default Setting: [Blank]
Determines the time slot to which this time slot is connected.
(Data/Voice Selection)
Possible Settings: d, v
Default Setting: d
Determines whether the time slot is dedicated to the transmission of voice or data.
d – The time slot is used for data.
v – The time slot is used for voice.
NOTES:
If a G.703 port is configured for voice, time slot 16 is used for signaling and is
not available for cross-connection.
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Configuration Options
Ensure that the number of DSL time slots defined is supported by the DSL
line rate. The maximum number of useful DSL time slots is the DSL line rate
divided by 64, rounded down to a whole number.
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Configuration Options
Management and Communication Options Menu
The Management and Communication Menu allows you to access the following:
H
H
Telnet Session Options, Table A-11
General SNMP Management Options, Table A-12
H
H
SNMP NMS Security Options, Table A-13
SNMP Traps Options, Table A-14
Telnet Session Options
The Telnet Session configuration options control whether a Telnet session is
allowed through an interconnected IP Network. If allowed, these options
determine what level of security to apply to the session to control access. Only
one Telnet session is allowed at a time. Initial values are determined by the
configuration you currently have loaded. To access the Telnet Sessions Options
screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From →
Management and Communication → Telnet Session
main/config/management/telnet
Slot: 18
Model: 87xx
TELNET SESSION OPTIONS
Telnet Session:
Telnet Login Required:
Session Access Level:
Inactivity Timeout:
Enable
Enable
Administrator
Enable
5
Disconnect Time (Minutes)
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
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Configuration Options
Table A-11. Telnet Session Options
Telnet Session
Possible Settings: Enable, Disable
Default Setting: Enable
Specifies if the unit will respond to a Telnet session request from a Telnet client on an
interconnected IP network.
Enable – Allows Telnet sessions between the unit and a Telnet client.
Disable – No Telnet sessions allowed.
Telnet Login Required
Possible Settings: Enable, Disable
Default Setting: Disable
Specifies whether a user ID and password are required to access to the ATI through a
Telnet session. Login IDs are created with a password and access level. Refer to
Creating a Login in Chapter 6, Security.
Enable – Security is enabled. When access is attempted via Telnet, the user is
prompted for a Login ID and password.
Disable – No Login required for a Telnet session.
Session Access Level
Possible Settings: Administrator, Operator
Default Setting: Administrator
The Telnet session access level is interrelated with the access level of the Login ID.
Refer to ATI Access Levels in Chapter 6, Security, for more information.
Administrator – This is the higher access level, permitting full control of the 87xx
Termination Unit. Access level is determined by the Login ID. If Telnet Login Required is
disabled, the session access level is Administrator.
Operator – This is the lower access level, permitting read-only access to status and
configuration screens.
Inactivity Timeout
Possible Settings: Enable, Disable
Default Setting: Disable
Provides automatic logoff of a Telnet session.
H Inactivity Timeout is forced to Enable if the unit is in a DSLAM running in IP
conservative mode.
Enable – The Telnet session terminates automatically after the Disconnect Time.
Disable – A Telnet session will not be closed due to inactivity.
Disconnect Time (Minutes)
Possible Settings: 1–60
Default Setting: 5
Number of minutes of inactivity before a Telnet session terminates automatically.
Timeout is based on no keyboard activity.
H Disconnect Time (minutes) option appears when Inactivity Timeout is enabled.
1 to 60 – The Telnet session is closed after the selected number of minutes.
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Configuration Options
General SNMP Management Options
To access the General SNMP Management Options screen, follow this menu
selection sequence:
Main Menu → Configuration → Load Configuration From → Edit →
Management and Communication → SNMP
main/config/management/SNMP
Slot: 4
Model: 87xx
GENERAL SNMP MANAGEMENT OPTIONS
Enable
SNMP Management:
Community Name 1:
Name 1 Access:
Community Name 2:
Name 2 Access:
Public
Read/Write
Public
Clear
Clear
Read/Write
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
The Community Name and Name Access configuration options are not available
if the unit is an LTU in a DSLAM running in IP Conservative mode.
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Configuration Options
Table A-12. General SNMP Management Options
SNMP Management
Possible Settings: Enable, Disable
Default Setting: Enable
Enable or disables the SNMP management features.
Enable – Enables SNMP management capabilities.
Disable – Disables SNMP management capabilities.
Community Name 1
Possible Settings: [ASCII text field]
Default Text: Public
Identifies the name of the community allowed to access the unit’s MIB. The community
name must be supplied by an external SNMP manager when that manager attempts to
access an object in the MIB.
H This field does not appear if the unit is an LTU in a DSLAM running in IP
conservative mode.
Text Field – Enter or edit a community name.
Clear – Clears the community name field.
Name 1 Access
Possible Settings: Read, Read/Write
Default Setting: Read/Write
Determines the access level for Community Name 1.
H This field does not appear if the unit is an LTU in a DSLAM running in IP
conservative mode.
Read – Allows read-only access (get) for Community Name 1.
Read/Write – Allows read/write access (get) for Community Name 1.
Community Name 2
Possible Settings: [ASCII text field]
Default Text: [null string]
Identifies the name of the second community allowed to access the unit’s MIB. The
community name must be supplied by an external SNMP manager when that manager
attempts to access an object in the MIB.
H This field does not appear if the unit is an LTU in a DSLAM running in IP
conservative mode.
Text Field – Enter or edit a community name.
Clear – Clears the community name field.
Name 2 Access
Possible Settings: Read, Read/Write
Default Setting: Read
Determines the access level for Community Name 2.
H This field does not appear if the unit is an LTU in a DSLAM running in IP
conservative mode.
Read – Allows read-only access (get) for Community Name 2.
Read/Write – Allows read/write access (get/set) for Community Name 2.
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Configuration Options
SNMP NMS Security Options
To access the SNMP NMS Security Options screen, follow this menu selection
sequence:
Main Menu → Configuration → Load Configuration From → Edit →
Management and Communication → Security
main/config/management/security
Slot: 4
Model: 87xx
SNMP NMS SECURITY OPTIONS
NMS IP Validation: Enable
Number of Managers: 5
NMS 1 IP Address:
NMS 2 IP Address:
NMS 3 IP Address:
NMS 4 IP Address:
NMS 5 IP Address:
135.014.040.001 Clear
135.014.003.027 Clear
135.014.001.008 Clear
135.014.002.024 Clear
204.128.146.035 Clear
Access Type: Read/Write
Access Type: Read/Write
Access Type: Read
Access Type: Read
Access Type: Read
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
The SNMP NMS Security configuration options screen is not available in
IP Conservative mode.
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Configuration Options
Table A-13. SNMP NMS Security Options
NMS IP Validation
Possible Settings: Enable, Disable
Default Setting: Disable
Specifies whether security checking is performed on the IP address of SNMP
management systems attempting to access the node.
Enable – Security checking is performed on the IP address of SNMP management
systems attempting to access the node.
Disable – No security checking is performed.
Number of Managers
Possible Settings: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Default Setting: 1
Specifies the number of SNMP management systems that can send SNMP messages.
1 to 5 – Number of trap managers. An NMS IP address is required for each manager.
NMS n IP Address
Possible Settings: 001.000.000.000 – 223.255.255.255, Clear
Default Setting: 000.000.000.000
Specifies the Internet Protocol address used to identify each SNMP manager.
001.000.000.000 – 223.255.255.255 – Enter an address for each SNMP manager. The
range for the first byte is 001 to 223, with the exception of 127. The range for the
remaining three bytes is 000 to 255.
Clear – Clears the IP address and sets to all zeros.
Access Type
Possible Settings: Read, Read/Write
Default Setting: Read
Determines the access level allowed for an authorized NMS when IP address validation
is being performed.
Read – Allows read-only access (get) to the accessible objects in the MIB for this
device.
Read/Write – Allows read/write access (get/set) to the accessible objects in the MIB for
this device.
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Configuration Options
SNMP Traps Options
An SNMP trap can be automatically sent out through the EOC or the
Management port to the SNMP manager when the unit detects conditions set by
the user. These traps enable the SNMP manager to gauge the state of the
network. Refer to Appendix B, Standards Compliance for SNMP Traps, for details
of SNMP traps supported by the Hotwire Termination Unit.
To configure the unit for SNMP traps, use the SNMP Traps Options screen to:
H
H
H
Enable SNMP traps.
Set the number of SNMP managers that receive SNMP traps from the unit.
Enter an IP address and network destination for each SNMP manager
specified.
H
Select the type of SNMP traps to be sent from the unit.
To access the SNMP Traps Options screen, follow this menu selection sequence:
Main Menu → Configuration → Load Configuration From → Edit →
Management and Communication → SNMP Traps
main/config/management/trap
Slot: 4
Model: 87xx
SNMP TRAPS OPTIONS
Enable Number of Trap Managers: 9
SNMP Traps:
NMS 1 IP Address:
NMS 2 IP Address:
NMS 3 IP Address:
NMS 4 IP Address:
NMS 5 IP Address:
NMS 6 IP Address:
NMS 7 IP Address:
NMS 8 IP Address:
NMS 9 IP Address:
135.014.040.001 Clear
135.014.003.027 Clear
135.014.001.008 Clear
135.014.002.024 Clear
204.128.146.035 Clear
135.014.003.028 Clear
135.014.001.009 Clear
135.014.002.025 Clear
204.128.146.036 Clear
General Traps:
Link Traps:
Both
Both
Enterprise Specific Traps:
Link Traps Interfaces:
Disable
All
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions, ESC for previous menu
Save
MainMenu
Exit
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Configuration Options
Table A-14. SNMP Traps Options (1 of 2)
SNMP Traps
Possible Settings: Enable, Disable
Default Setting: Disable
Controls the generation of SNMP trap messages.
Enable – SNMP trap messages are sent out to SNMP managers.
Disable – No SNMP trap messages are sent out.
Number of Trap Managers
Possible Settings: 1, 2, 3, 4, 5, 6, 7, 8, 9
Default Setting: 1
Sets the number of SNMP management systems that will receive SNMP traps.
H This field is not available when the unit is running in IP Conservative mode.
1 to 9 – Number of trap managers. An NMS IP address is required for each manager.
NMS n IP Address
Possible Settings: 001.000.000.000 – 223.255.255.255, Clear
Default Setting: 000.000.000.000
Specifies the Internet Protocol address used to identify each SNMP trap manager.
H This field is not available when the unit is running in IP Conservative mode.
001.000.000.000 – 223.255.255.255 – Enter an address for each SNMP trap manager.
The range for the first byte is 001 to 223, with the exception of 127. The range for the
remaining three bytes is 000 to 255.
Clear – Clears the IP address and sets to all zeros.
NMS n Destination
Possible Settings: IMC, DSL1, DSL2, DSL3, DSL4, DSL5, DSL6, DSL7, DSL8
Default Setting: IMC
Provides the network destination path of each trap manager.
H NMS n Destination is available only when the unit is configured as an NTU and not
running in IP Conservative mode. Disabled ports cannot be specified.
IMC – The Internal Management Channel (IMC) is the default network destination. This
is the management interface to the MCC card in the DSLAM.
DSL1 to DSL8 – The specified port is the network destination.
General Traps
Possible Settings: Disable, Warm, AuthFail, Both
Default Setting: Both
Determines which SNMP traps are sent to each trap manager.
Disable – No general trap messages are sent.
Warm – Sends trap message for warmStart events.
AuthFail – Sends trap message for authenticationFailure events.
Both – Sends both trap messages.
NOTE: Refer to Appendix B, Standards Compliance for SNMP Traps.
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Configuration Options
Table A-14. SNMP Traps Options (2 of 2)
Enterprise Specific Traps
Possible Settings: Enable, Disable
Default Setting: Disable
Determines if SNMP traps are generated for enterprise-specific events.
Enable – SNMP traps are generated for enterpriseSpecific events.
NOTE: Refer to Enterprise Specific Traps in Appendix B, Standards Compliance
for SNMP Traps.
Disable – No enterprise-specific event traps are sent.
Link Traps
Possible Settings: Disable, Up, Down, Both
Default Setting: Both
Determines if SNMP traps are generated for link up and link down for one of the
communication interfaces.
Disable – No linkUp or linkDown SNMP traps are generated.
Up – A linkUp trap is generated when the unit recognizes that one of the communication
interfaces is operational.
Down – A linkDown trap is generated when the unit recognizes a failure in one of the
communication interfaces.
Both – Sends trap messages for detection of both linkUp and linkDown.
NOTE: Refer to linkUp and linkDown in Appendix B, Standards Compliance for
SNMP Traps.
Link Traps Interfaces
Possible Settings: Network, DSX-1, All
Default Setting: All
Determines if the SNMP linkUp, SNMP linkDown, and interface-related
enterpriseSpecific traps are generated for the network DSL interface and/or DSX-1
interface (DTE).
Network – SNMP trap messages are generated for the DSL network interface.
DSX-1 – SNMP trap messages are generated for the DSX-1 interface.
All – SNMP trap messages are generated for the DSL network interface, COM port, and
DSX-1 interface.
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Standards Compliance for
SNMP Traps
B
SNMP Traps
This section describes the unit’s compliance with SNMP standards and any
special operational features for the SNMP traps supported. The unit supports the
following traps:
H
H
H
H
H
warmStart
authenticationFailure
linkUp
linkDown
Enterprise-specific traps
ifIndex
The object ifIndex is a variable binding for several traps. The following ifIndex
values are supported for Hotwire 87xx Termination Units:
ifIndex
3–10
Description
DSL Interface Ports 1–8
DSX-1 or G.703 Interface Ports 1–8
EOC Management Link Ports 1–8
15–22
39–46
For a unit defined as an LTU running IP Conservative software or a unit not
running IP conservative software, all traps have at a minimum a variable binding
of the Overloaded ifIndex (OI). The formula for the OI is:
((LTU Slot Number) * 1,000)
+ ifIndex.
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Standards Compliance for SNMP Traps
For a unit defined as an NTU running IP Conservative software, all traps have at
a minimum a variable binding of the Super Overloaded ifIndex (SOI). The formula
for the SOI is:
((LTU Slot Number) * 1,000,000)
+ ((LTU DSL Port Number) * 1,000)
+ the NTU’s ifIndex.
warmStart
SNMP Trap
Description
Possible Cause
warmStart
The unit has reinitialized
itself.
H Reset command.
H Power disruption.
The trap is sent after the unit
resets and stabilizes.
No variable bindings.
authenticationFailure
SNMP Trap
Description
Possible Cause
authenticationFailure
Failed attempts to access
the unit.
Three unsuccessful attempts
were made to enter a correct
login/password combination.
Variable bindings:
H devAuthentication
FailureIPAddress
(Health & Status MIB)
Returns zero if the IP
address is unknown or the
failure came from the
terminal port.
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Standards Compliance for SNMP Traps
linkUp and linkDown
The link SNMP traps are:
H
H
linkUp – The unit recognizes that one of the communication interfaces is
operational.
linkDown – The unit recognizes that one of the communication interfaces is
not operational.
The network and synchronous port interfaces (physical sublayer) are represented
by an entry in the MIB-II interfaces table and supported by the DS1 MIB.
The following list describes the conditions that define linkUp and linkDown:
linkUp/Down variable bindings
H ifIndex (RFC 1573)
This object provides the index into the ifTable and potentially into tables in other MIBs.
The ifIndexes supported are:
– 3–10
DSL Network Interface
– 15–22 DSX-1 or G.703 Port
– 39–46 EOC Management Link
H ifAdminStatus (RFC 1573)
This object specifies the operational state of the interface:
– up(1)
The interface is enabled.
– down(2)
The interface is disabled.
H ifOperStatus (RFC 1573)
This object specifies the operational state of the interface:
– up(1)
DSL Port: DSL link is established and no alarms exist.
DSX-1 or G.703 Port: No alarm conditions exist.
EOC: Based on the state of the link layer protocol.
– down(2)
DSL Port: DSL link is not established or alarms exist.
DSX-1 or G.703 Port: Alarm condition exists.
EOC: Based on the state of the link layer protocol.
– testing(3)
DSL, DSX-1 or G.703 Port: A test is active on the port.
– dormant(5)
DSL Port: DSL link is negotiating.
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Standards Compliance for SNMP Traps
linkUp/Down variable bindings, continued
H ifType (RFC 1573)
This object is the type of interface:
– other(1)
Used for the backplane HDLC interface.
– ds1 (18)
Used for DSX-1 interface
– e1 (19)
Used for G.703 interface
– propPointToPointSerial(22)
Used for EOC.
– v35(45)
Used for the EIA-530-A port.
– sdsl(96)
Used for the DSL network interface.
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Standards Compliance for SNMP Traps
Enterprise-Specific Traps
The enterpriseSpecific trap indicates that an enterprise-specific event has
occurred. The Specific-trap field identifies the particular trap that occurred. The
following table lists the enterprise-specific traps supported by the unit:
SNMP Trap
Description
Possible Cause
enterprisePrimaryClockFail The unit has lost its primary Hardware failure in the unit
(1)
clock source.
or the clock source.
No variable bindings.
enterpriseSelfTestFail(2)
A hardware failure of the
unit is detected during the
unit’s self-test. The trap is
generated after the unit
completes initialization.
Failure of one or more of the
unit’s hardware components.
Variable bindings:
H devSelfTestResults
enterpriseDeviceFail(3)
An internal device failure.
No variable bindings.
Operating software has
detected an internal device
failure.
enterpriseSecondaryClock The unit has lost its
Hardware failure in the unit
or the clock source.
Fail(4)
secondary clock source.
No variable bindings.
enterpriseTestStart(5)
A test is running.
At least one test has been
started on an interface.
Variable bindings:
H devSelfTestResults
H ifIndex (RFC 1573)
H ifAdminStatus
(RFC 1573)
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
H ifTestType (RFC 1573)
enterpriseConfigChange(6) The configuration changed Configuration has been
via the user interface. The
changed via the ATI.
trap is sent after
60 seconds have elapsed
without another change.
This suppresses the
sending of numerous traps
when multiple changes are
made in a short period of
time, as is typically the
case when changing
configuration options.
No variable bindings.
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Standards Compliance for SNMP Traps
SNMP Trap
Description
Possible Cause
enterpriseFallback
AutoRate(13)
After a loss of signal, the
unit resynchronized to a
lower rate than the last
known rate.
Variable line conditions.
Variable bindings:
H ifIndex (RFC 1573)
H ifAdminStatus
(RFC 1573)
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
enterprisePrimaryClockFail The LTU has recovered and
Clear(101)
is using its primary clock
source.
No variable bindings.
enterpriseSecondaryClock The LTU has recovered and
FailClear(104)
is using its secondary clock
source.
No variable bindings.
enterpriseTestStop(105)
All tests have been halted.
Variable bindings:
All tests on an interface
have been stopped by
timeout or an Abort All Tests
command.
H ifIndex (RFC 1573)
H ifAdminStatus
(RFC 1573)
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
H ifTestType (RFC 1573)
enterpriseFallback
AutoRateClear(113)
After an AutoRate fallback
condition, the unit
resynchronized to the last
known rate.
Variable bindings:
H ifIndex (RFC 1573)
H ifAdminStatus
(RFC 1573)
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
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Standards Compliance for SNMP Traps
The tests that affect the enterpriseTestStart and enterpriseTestStop traps and the
variable bindings depend on the interface. The specific tests and variable
bindings are described in the following table:
enterpriseTestStart/Stop
variable bindings
Interface
Possible Cause
DSL Network H ifIndex (RFC 1573)
H ifAdminStatus (RFC 1573)
H enterpriseTest Start – Any
one of the following tests is
active on the interface:
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
– Line Loopback
– Remote Line Loopback
– Send and Monitor 511
H ifTestType (RFC 1573)
H enterpriseTest Stop – No tests
currently running on the
interface.
The following objects control tests
in SNMP-managed devices:
– noTest(0) – Stops the test in
progress.
– testLoopLLB(4) – Initiates a
Local Loopback.
– testSendMon511(6) – Initiates a
Send and Monitor 511 test.
– testSendLLBUp(7) – Initiates an
LLB Up message to the remote
unit.
– testSendLLBDown(8) – Initiates
an LLB Down message to the
remote unit.
DSX-1 or
G.703
H ifIndex (RFC 1573)
H enterpriseTest Start – Any
one of the following tests is
active on the interface:
H ifAdminStatus (RFC 1573)
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
– DTE Loopback
– Repeater Loopback
– Telco Payload Loopback
(DSX-1 only)
H ifTestType (RFC 1573)
The following objects control tests
in SNMP-managed devices:
H enterpriseTest Stop – No tests
currently running on the
interface.
– noTest(0) – Stops the test in
progress.
– testLoopDTLB(3) – Initiates a
DTE Loopback.
– testLoopPLB(1) – A
Telco-initiated Payload
Loopback is active on the
interface (DSX-1 only).
– testLoopRLB(5) – Initiates a
Remote Loopback.
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Standards Compliance for SNMP Traps
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Connector Pin Assignments
C
Hotwire Termination Unit Front Panel 50-pin DTE
Connector Pinouts
The DTE connectors on the Hotwire Termination Unit provide the 4-wire DSX-1
or G.703 interface from each DSL port to the DTE. The following table lists the
pin assignments for each of these interfaces.
50
26
1
Table C-1. Front Panel DTE Connector Pinouts (1 of 2)
50-Pin
25
Connector
Pinout
DSX-1 or
G.703 Port
97-15323
Function
27
2
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
Port 1
Port 2
26
1
Data In (Ring)
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
30
5
29
4
Data In (Ring)
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
33
8
Port 3
32
7
Data In (Ring)
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Connector Pin Assignments
Table C-1. Front Panel DTE Connector Pinouts (2 of 2)
50-Pin
Connector
Pinout
DSX-1 or
G.703 Port
Function
36
11
35
10
39
14
38
13
42
17
41
16
45
20
44
19
48
23
47
22
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
Port 4
Data In (Ring)
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
Port 5
Port 6
Data In (Ring)
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
Data In (Ring)
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
Port 7
Port 8
Data In (Ring)
Data Out (Ring)
Data Out (Tip)
Data In (Tip)
Data In (Ring)
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Connector Pin Assignments
Model 8610, 8810, and 8820 DSLAM Telco 50-pin
Connector Pinouts
The Telco 50-pin connectors on the rear of the DSLAM chassis (numbered 1–3
in 8600 Series DSLAMs and 1–18 in 8800 Series DSLAMs) provide the 2-wire
loop interface from each DSL port to either the POTS splitter shelf or, if the
loop is not being shared with POTS, then to the Main Distribution Frame
(MDF). The following table lists the pin assignments for each of these
interfaces.
50
26
1
25
Table C-2. Rear Connector Pinouts
Connector Pins
97-15323
Port
(Tip, Ring)
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
1, 26
2, 27
3, 28
4, 29
5, 30
6, 31
7, 32
8, 33
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Connector Pin Assignments
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Technical Specifications
D
Specifications
Criteria*
Size
Length 10 inches (25.4 cm)
Height 12.3 inches (31.1 cm)
Width 0.8 inch (2.0 cm)
Weight
Approximately 1.24 lbs. (0.56 kg)
Approvals
Safety Certifications
Refer to the equipment’s label for approvals on product.
Power
The Hotwire Termination Unit contains a dc-to-dc
converter that requires –48V power input. The –48V
power is distributed through the Hotwire DSLAM
backplane.
Maximum Power Dissipation = 27 watts
Physical Environment
Operating temperature
Storage temperature
Relative humidity
32° to 122° F (0° to 50° C)
–4° F (–20° C) to 158° F (70° C)
5% to 85% (noncondensing)
Shock and vibration
Withstands normal shipping and handling.
* Technical specifications are subject to change without notice.
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Cross-Connection Worksheets
E
Using the Worksheets
The following worksheets are designed to help plan, visualize, and configure a
cross-connection. Time slot assignment worksheets are supplied to represent a
connection from the viewpoint of the DSX-1 or G.703 ports, or the associated
DSL ports. The unit can be configured using either viewpoint, so it may not be
necessary or useful to fill in all the worksheets.
Use the completed port connection diagram and time slot assignment
worksheets to configure the cross-connection using the Cross-Connect Mode
and Assign Time Slots screens. See Chapter 4, Cross-Connecting Ports, for an
example of cross-connection.
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Cross-Connection Worksheets
Port Connection Diagram
Select Voice and/or Data for each port. Draw lines to show the connection of
DSX-1 or G.703 ports to DSL ports and mark each connections as one of:
H
H
H
DS1 Bypass
DS0 Cross-Connect
DS1 Cross-Connect
See Determining the Configuration in Chapter 4, Cross-Connecting Ports, for a
sample completed port connection diagram.
Port 1
DSX-1
❏❏Voice
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
DSL
DSL
DSL
DSL
DSL
DSL
DSL
DSL
G.703
❏❏Data
Port 2
DSX-1
G.703
❏❏Voice
❏❏Data
Port 3
DSX-1
G.703
❏❏Voice
❏❏Data
Port 4
DSX-1
G.703
❏❏Voice
❏❏Data
Port 5
DSX-1
G.703
❏❏Voice
❏❏Data
Port 6
DSX-1
G.703
❏❏Voice
❏❏Data
Port 7
DSX-1
G.703
❏❏Voice
❏❏Data
Port 8
DSX-1
G.703
❏❏Voice
❏❏Data
Port 8
99-16602
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Cross-Connection Worksheets
DSX-1 Time Slot Assignments
Fill in the port number and time slot cross-connection and data/voice mode for
each time slot. Then transfer the entries to the Assign Time Slots screen.
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSX-1 Port 1
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Time Slot Assignments – DSX-1 Port 2
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSX-1 Port 3
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Time Slot Assignments – DSX-1 Port 4
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSX-1 Port 5
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Time Slot Assignments – DSX-1 Port 6
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSX-1 Port 7
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Time Slot Assignments – DSX-1 Port 8
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSL Port 1
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Time Slot Assignments – DSL Port 2
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSL Port 3
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Time Slot Assignments – DSL Port 4
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSL Port 5
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Time Slot Assignments – DSL Port 6
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
X = DSX-1)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–24)
Time Slot Assignments – DSL Port 7
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Time Slot Assignments – DSL Port 8
TS01
TS08
TS15
TS22
TS02
TS09
TS16
TS23
TS03
TS10
TS17
TS24
TS04
TS11
TS18
TS05
TS12
TS19
TS06
TS13
TS20
TS07
TS14
TS21
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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Cross-Connection Worksheets
G.703 Time Slot Assignments
Fill in the port number and time slot cross-connection and data/voice mode for
each time slot. Then transfer the entries to the Assign Time Slots screen.
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 1
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for Channel Associated Signaling (CAS),
Time Slot 16 is used for signaling and is unavailable for cross-connection.
When a G.703 port is configured for Common Channel Signaling (CCS) in a
DS0 Cross Connect, the user must cross-connect Time Slot 16 and any
associated time slots.
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 2
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for CAS, Time Slot 16 is used for signaling
and is unavailable for cross-connection. When a G.703 port is configured for
CCS in a DS0 Cross Connect, the user must cross-connect Time Slot 16 and
any associated time slots.
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 3
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for CAS, Time Slot 16 is used for signaling
and is unavailable for cross-connection. When a G.703 port is configured for
CCS in a DS0 Cross Connect, the user must cross-connect Time Slot 16 and
any associated time slots.
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 4
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for CAS, Time Slot 16 is used for signaling
and is unavailable for cross-connection. When a G.703 port is configured for
CCS in a DS0 Cross Connect, the user must cross-connect Time Slot 16 and
any associated time slots.
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 5
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for CAS, Time Slot 16 is used for signaling
and is unavailable for cross-connection. When a G.703 port is configured for
CCS in a DS0 Cross Connect, the user must cross-connect Time Slot 16 and
any associated time slots.
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 6
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for CAS, Time Slot 16 is used for signaling
and is unavailable for cross-connection. When a G.703 port is configured for
CCS in a DS0 Cross Connect, the user must cross-connect Time Slot 16 and
any associated time slots.
April 2000
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 7
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for CAS, Time Slot 16 is used for signaling
and is unavailable for cross-connection. When a G.703 port is configured for
CCS in a DS0 Cross Connect, the user must cross-connect Time Slot 16 and
any associated time slots.
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – G.703 Port 8
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16*
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*NOTE:
When a G.703 port is configured for CAS, Time Slot 16 is used for signaling
and is unavailable for cross-connection. When a G.703 port is configured for
CCS in a DS0 Cross Connect, the user must cross-connect Time Slot 16 and
any associated time slots.
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 1
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8700-A2-GB20-00
April 2000
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 2
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
April 2000
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 3
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 4
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
April 2000
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 5
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8700-A2-GB20-00
April 2000
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 6
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
April 2000
8700-A2-GB20-00
E-24
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 7
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8700-A2-GB20-00
April 2000
E-25
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Cross-Connection Worksheets
TS01
Port Type
(D = DSL
G = G.703)
d (Data) or v (Voice)
Port Number
(1–8)
Time Slot
(1–31)
Time Slot Assignments – DSL Port 8
TS01
TS08
TS15
TS22
TS29
TS02
TS09
TS16
TS23
TS30
TS03
TS10
TS17
TS24
TS31
TS04
TS11
TS18
TS25
TS05
TS12
TS19
TS26
TS06
TS13
TS20
TS27
TS07
TS14
TS21
TS28
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
April 2000
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Glossary
511
A random bit test 511 bytes in length.
AIS
Alarm Indication Signal. A signal transmitted downstream instead of the normal signal to
preserve transmission continuity and to indicate to the rest of the network that a fault
exists. Also called a Blue Alarm.
AMI
Alternate Mark Inversion. A line coding technique used to accommodate the ones density
requirements of E1 or T1 lines.
ATI
Asynchronous Terminal Interface. A menu-driven, VT100-compatible system for
configuring and managing the termination unit.
BER
Bit Error Rate. The number of bits in error over a given period compared to the number of
bits transmitted successfully.
BES
Bursty Error Seconds. A second in which more than one but less than 320 CRC6 error
events have occurred.
BPV
Bipolar Violation. In a bipolar signal, a one (mark, pulse) which has the same polarity as its
predecessor.
bridged tap
CAP
Any part of the local loop that is not in the direct talking path between the CO and the
service user.
Carrierless Amplitude and Phase Modulation. A transmission technology for implementing
a DSL. Transmit and receive signals are modulated into two wide-frequency bands using
passband modulation techniques.
CAS
CCS
Channel Associated Signaling. A type of signaling in which the state of the circuit is
denoted by status bits appropriated from information packets. Also called Robbed Bit
Signaling.
Common Channel Signaling. A type of signaling in which a group of circuits share a single
reserved signaling channel.
CD
CO
Carrier Detect. The received line signal detector. V.24 circuit 109.
Central Office/Central Site. The PSTN facility that houses one or more switches serving
local telephone subscribers.
COM port
Communications port. A computer’s serial communications port used to transmit to and
receive data from a modem. The modem connects directly to this port.
CP
Customer Premises.
CPE
Customer Premises Equipment. Terminal equipment on the service user’s side of the
telecommunications network interface.
CPU
CRC
Central Processing Unit. The main or only computing device in a data processing system.
Cyclic Redundancy Check. A mathematical method of confirming the integrity of received
digital data.
CSS
Controlled Slip Seconds. A period in which a frame was added or deleted because of a
variance in timing.
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Glossary
CTS
CV
Clear To Send. A signal indicating that the device is ready for the DTE to transmit data.
Usually occurs in response to Request To Send (RTS).
Code Violation. Detected when using HDB3 coding format, this is equivalent to a BPV
when using AMI coding.
DCE
Data Communications Equipment. The equipment that provides the functions required to
establish, maintain, and end a connection. It also provides the signal conversion required
for communication between the DTE and the network.
DCLB
Data Channel LoopBack. Loops the data received from the network interface, for all DS0
channels allocated to the selected port, back to the network.
DS0
DS1
Digital signal level 0 (zero). A 64 kbps digital telecommunications signal or channel.
Digital signal level 1. A digital signal transmitted at the rate of 1.544 Mbps in North
America.
DSL
Digital Subscriber Line. The non-loaded, local-loop copper connection between the
customer and the first node within the network.
DSLAM
DSR
Digital Subscriber Line Access Multiplexer. A platform for DSL modems that provides
high-speed data transmission over traditional twisted-pair wiring.
Data Set Ready. A signal from the modem to the DTE that indicates the modem is turned
ON and connected to the DTE.
DSX-1
DTE
Digital Signal Cross Connect level 1. An interconnection point for terminals, multiplexers
and transmission facilities.
Data Terminal Equipment. The equipment, such as a computer or terminal, that provides
data in the form of digital signals for transmission.
DTLB
DTR
Data Terminal LoopBack. Loopback mode that loops the data for a particular synchronous
data port back to the port just before it is combined with the rest of the T1 data stream.
Data Terminal Ready. A signal from the DTE to the modem, sent via Pin 20 of the
EIA-232 interface (V.24 circuit 108/1, /2), that indicates the DTE is turned ON and
connected to the modem.
E1
A wideband digital interface operating at 2.048 Mbps, defined by ITU recommendations
G.703 and G.704. It is used primarily outside North America.
EER
Excessive Error Rate. An error rate that is greater than the threshold that has been
configured in the device.
EIA-530-A
EOC
An Electronic Industries Association standard for a high-speed, 25-position, DCE/DTE
interface.
Embedded Operations Channel. An in-band channel between DSL devices, used for
8 kbps management data.
ES
Errored Seconds. A second with one or more error events (one or more CRC error events
or OOFs).
ESF
Extended SuperFrame. The T1 transmission standard that specifies 24 frames as an
extended superframe to be used for frame synchronization and to locate signaling bits.
Ethernet
A type of network that supports high-speed communication among systems. It is a widely
implemented standard for LANs. All hosts are connected to a coaxial cable where they
contend for network access using a Carrier Sense, Multiple Access with Collision
Detection (CSMA/CD) paradigm.
ETSI
GL-2
European Telecommunications Standardization Institute. An organization that produces
technical standards in the area of telecommunications.
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Glossary
factory defaults
A predetermined set of configuration options containing the optimum settings for operation
on asynchronous dial networks.
FAS
Frame Alignment Signal. A loss of frame (LOF) error detection.
Frame Alignment Word. A loss of synchronization error detection.
FAW
FCC
Federal Communications Commission. The Board of Commissioners that regulates all
electrical communications that originate in the United States.
FDL
Facility Data Link. The selected framing bits in the ESF format used in a wide-area link that
are used for control, monitoring, and testing.
FEBE
frame
Far-End Block Error. Block errors reported by remote equipment.
One identifiable group of data bits that includes a sequence of bits for control and
identification information.
framer
A program or device that assembles and disassembles frames.
frame relay
A high-speed connection-oriented packet switching WAN protocol using variable-length
frames.
FTP
File Transfer Protocol. A TCP/IP standard protocol that allows a user on one host to
access and transfer files to and from another host over a network, provided that the client
supplies a login identifier and password to the server.
G.703
An ITU recommendation for the physical and logical characteristics of hierarchical digital
devices.
G.704
HDB3
An ITU recommendation for synchronous frame structures.
High Density Bipolar Three Zeros Substitution. A line coding technique used to
accommodate the ones density requirements of E1 lines.
HDSL
High-bit-rate Digital Subscriber Line. A technique for high bandwidth, bidirectional
transmission over copper wire for T1 and E1 services.
HDSL2
High-bit-rate Digital Subscriber Line, 2nd generation. An ANSI specification for high
bandwidth, bidirectional transmission over a single twisted pair.
IP
Internet Protocol. An open networking protocol used for internet packet delivery.
Internet Protocol address. The address assigned to an internet host.
IP address
ITU
International Telecommunications Union. The telecommunications agency of the United
Nations, established to provide standardized communications procedures and practices.
Before March 1993 it was called CCITT.
LAN
LED
Local Area Network. A privately owned and administered data communications network
limited to a small geographic area.
Light Emitting Diode. A light or status indicator that glows in response to the presence of a
certain condition (e.g., an alarm).
LIU
Line Interface Unit. A physical layer data transmitter and receiver.
LLB
Line LoopBack. A test in which the received signal on the network interface is looped back
to the network without change.
LOF
Loss of Frame. Occurs when a DS1 terminal is unable to synchronize on the DS1 signal
for some interval.
LOFC
Loss Of Frame Count. The number of LOFs declared.
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Glossary
loopback
A diagnostic procedure that sends a test message back to its origination point. Used to
test various portions of a data link in order to isolate an equipment or data line problem.
LOS
LTU
Loss of Signal. The line condition where there are no pulses.
Line Termination Unit. The control unit on the network end of a link. (The NTU is on the
customer premises end.)
MCC
Management Communications Controller. The DSLAM circuit card used to configure and
monitor the DSLAM.
M/HDSL
MIB
Multirate High-bit-rate Digital Subscriber Line. (See HDSL.)
Management Information Base. A database of managed objects used by SNMP to provide
network management information and device control.
MIB II
M/SDSL
NMS
MIB Release 2. The current Internet-standard MIB, defined by RFC 1213.
Multirate Symmetric Digital Subscriber Line. (See SDSL.)
Network Management System. A computer system used for monitoring and controlling
network devices.
NTU
Network Termination Unit. The unit on the customer premises end of a link. (The LTU is on
the network end.)
OOF
PPP
Out Of Frame. An error condition in which frame synchronization bits are in error.
Point-to-Point Protocol. A protocol for packet transmission over serial links, specified by
Internet RFC 1661.
RAI
Remote Alarm Indication. A failure message sent by the remote unit in a link.
A circuit that accepts data signals from a transmitter.
receiver
reset
A reinitialization of the device that occurs at power-up or in response to a reset command.
RLB
Repeater LoopBack. Loops the signal being sent to the network back to the DTE
Drop/Insert and data ports after it has passed through the framing circuitry of the device.
router
RTS
A device that connects LANs by dynamically routing data according to destination and
available routes.
Request to Send. A signal from the DTE to the device, indicating that the DTE has data to
send. V.24 circuit 105.
RXD
SDSL
SES
Received Data. Pin 3 of the EIA-232 interface that is used by the DTE to receive data from
the modem. Conversely, the modem uses Pin 3 to transmit data to the DTE.
Symmetric Digital Subscriber Line. A technique for the use of an existing twisted-pair line
that permits high bandwidth, bidirectional transmission.
Severely Errored Seconds. Usually defined as a second during which a specific number of
CRC errors was exceeded, or an OOF or other critical error occurred.
SNMP
T1
Simple Network Management Protocol. Protocol for open networking management.
A term for a digital carrier facility used to transmit a DS1 formatted digital signal at
1.544 Mbps. It is used primarily in North America.
TCP/IP
Transmission Control Protocol/Internet Protocol. The dominant protocol suite in the
worldwide Internet, TCP allows a process on one machine to send data to a process on
another machine using the IP. TCP can be used as a full-duplex or one-way simplex
connection.
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Glossary
Telnet
TFTP
Virtual terminal protocol in the Internet suite of protocols. Allows the user of one host
computer to log into a remote host computer and interact as a normal terminal user for that
host.
Trivial File Transfer Protocol. A standard TCP/IP protocol that allows simple file transfer to
and from a remote system without directory or file listing. TFTP is used where FTP is not
available.
transceiver
transmitter
A circuit capable of acting as both a transmitter and a receiver.
A circuit capable of generating, modulating, and sending a signal for communication,
control, and other purposes.
TXD
Transmit Data. Pin 2 of the EIA-232 interface that is used by the DTE to transmit data to
the modem. Conversely, the modem uses Pin 2 to receive data from the DTE.
UAS
Unavailable Seconds. A count of one-second intervals when service is unavailable.
UNIX
An operating system developed at AT&T Bell Laboratories and since used as the basis of
similar operating systems.
V.35
An ITU-T standard for a high-speed, 34-position, DCE/DTE interface.
Wide Area Network. A network that spans a large geographic area.
WAN
Yellow Alarm
An outgoing signal transmitted when a DS1 or DS3 terminal has determined that it has lost
the incoming signal.
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Glossary
April 2000
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Index
configuration
A
access
loader, 9-3
access level
functions available for, 6-2
ATI (Asynchronous Terminal Interface)
AutoRate
connectors
Control branch
Change Identity, 3-2
C
Card Failed
Change Identity, 3-2
Circuit Identifier, A-4
Clear_All
Port Number, A-22
Port Type, A-22
Time Slot Number, A-22
cross-connection
clocking
community names
8700-A2-GB20-00
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Index
D
E
Enterprise Specific Traps, A-31
device
download
Excessive Error Rate (EER) Threshold
F
DSL line rate
firmware, download from server, 9-1
framing
DSLAM
G
G.703
DTE LIU x Fail
General Traps, A-30
H
April 2000
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IN-2
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Index
I
M
identity, 3-2
IP address
management port
DSL peer, A-4
SNMP manager, 6-5
messages
K
MIB
L
LEDs
viewing through the ATI, 7-17
N
Line Framing
Circuit Identifier, A-4
NMS
loopback
SNMP connectivity, 5-1
O
overview
8700-A2-GB20-00
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Index
SNMP
P
payload rate
Enterprise Specific Traps, A-31
Link Traps, A-31
pin assignments
Primary Clock Source
start-up, ATI, 2-1
system
System Options
R
reset
T
Telco-initiated
Telnet session
S
to TFTP server, 9-3
security, 6-1
Send and Monitor 511, 8-8
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Index
test
U
user interface
Send and Monitor 511, 8-8
V
timeout
W
timing
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