Paradyne Network Card HOTWIREt 7984 User Manual

HOTWIREt 7984  
M/HDSL STANDALONE  
TERMINATION UNIT  
WITH DSX-1 INTERFACE  
USER’S GUIDE  
Document No. 7984-A2-GB20-10  
February 1999  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Important Information  
!
Important Safety Instructions  
1. Read and follow all warning notices and instructions marked on the product or included in the manual.  
2. Input power to this product must be provided by one of the following: (1) a UL Listed/CSA Certified power source  
with a Class 2 or Limited Power Source (LPS) output for use in North America; or (2) a 24 Vdc National Electric  
Code (NEC) ANSI/NFPA 70/Canadian Electric Code (CEC) Class 2 circuit installed in accordance with articles  
110-16, 110-17, and 110-18 of the NEC, and articles 2-308, 2-310, 2-312, 2-314, 2-200, and 2-202 of the CEC, or  
(3) a Safety Extra Low Voltage (SELV) power source with a maximum available output of less than 240 VA,  
certified for use in the country of installation.  
3. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to  
protect it from overheating, these slots and openings must not be blocked or covered.  
4. Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the  
power cord.  
5. Do not attempt to install or service this product yourself, as opening or removing covers may expose you to  
dangerous high voltage points or other risks. Refer all installation and servicing to qualified service personnel.  
6. General purpose cables are provided with this product. Special cables, which may be required by the regulatory  
inspection authority for the installation site, are the responsibility of the customer.  
7. When installed in the final configuration, the product must comply with the applicable Safety Standards and  
regulatory requirements of the country in which it is installed. If necessary, consult with the appropriate regulatory  
agencies and inspection authorities to ensure compliance.  
8. A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings. If  
products installed in separate buildings are interconnected, the voltage potential may cause a hazardous  
condition. Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if  
necessary, implement corrective action prior to interconnecting the products.  
9. In addition, if the equipment is to be used with telecommunications circuits, take the following precautions:  
Never install telephone wiring during a lightning storm.  
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.  
Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the  
network interface.  
Use caution when installing or modifying telephone lines.  
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of  
electric shock from lightning.  
Do not use the telephone to report a gas leak in the vicinity of the leak.  
7984-A2-GB20-10  
February 1999  
B
Download from Www.Somanuals.com. All Manuals Search And Download.  
Important Information  
EMI Warnings  
!
WARNING:  
This equipment has been tested and found to comply with the limits for a Class A digital device,  
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against  
harmful interference when the equipment is operated in a commercial environment. This equipment  
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance  
with the instruction manual, may cause harmful interference to radio communications. Operation of this  
equipment in a residential area is likely to cause harmful interference in which case the user will be  
required to correct the interference at his own expense.  
The authority to operate this equipment is conditioned by the requirements that no modifications will be  
made to the equipment unless the changes or modifications are expressly approved by Paradyne  
Corporation.  
!
WARNING:  
To Users of Digital Apparatus in Canada:  
This Class A digital apparatus meets all requirements of the Canadian interference-causing equipment  
regulations.  
Cet appareil numérique de la classe A respecte toutes les exigences du règlement sur le matérial  
brouilleur du Canada.  
February 1999  
7984-A2-GB20-10  
C
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Contents  
7984-A2-GB20-10  
February 1999  
i
Download from Www.Somanuals.com. All Manuals Search And Download.  
Contents  
February 1999  
7984-A2-GB20-10  
ii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Contents  
7984-A2-GB20-10  
February 1999  
iii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Contents  
February 1999  
7984-A2-GB20-10  
iv  
Download from Www.Somanuals.com. All Manuals Search And Download.  
About This Guide  
Document Purpose and Intended Audience  
This guide contains information needed to set up, configure, and operate the  
Hotwire 7984 Multirate High-bit-rate Digital Subscriber Line (M/HDSL) Standalone  
Termination Unit with DSX-1 interface, and is intended for installers and  
operators.  
Document Summary  
Section  
Description  
About the 7984 Standalone Termination Unit. Describes the  
7984 Termination Unit’s features and capabilities.  
Using the Asynchronous Terminal Interface. Provides  
instructions for accessing the user interface and navigating  
through the screens.  
Initial Startup and Configuration. Provides procedures for  
setting up the user interface and configuration steps.  
Monitoring the Unit. Describes using the LEDs, status, and  
network statistics to monitor the unit.  
Testing. Provides information about available tests and test  
setup.  
Messages and Troubleshooting. Provides information on  
SNMP traps, device messages, and troubleshooting.  
Security. Presents procedures for creating a login, setting  
the effective access levels, and controlling SNMP access.  
IP Addressing. Provides information and examples  
regarding IP addresses.  
7984-A2-GB20-10  
February 1999  
v
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
About This Guide  
Section  
Description  
Configuration Option Tables. Contains all configuration  
options, default settings, and possible settings.  
Standards Compliance for SNMP Traps. Contains SNMP  
trap compliance information.  
Cables and Pin Assignments. Contains connector and  
interface information.  
Technical Specifications. Contains physical and regulatory  
specifications, network and port interfaces, power  
consumption values, and accessory part numbers.  
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  
8784-A2-GB20  
Hotwire 8784 M/HDSL Termination Unit, with DSX-1  
Interface, User’s Guide  
8784-A2-GZ40  
Hotwire 8784 M/HDSL Termination Unit, with DSX-1  
Interface, Installation Instructions  
Contact your sales or service representative to order additional product  
documentation.  
Paradyne documents are also available on the World Wide Web at:  
http://www.paradyne.com  
Select Service & Support Technical Manuals  
February 1999  
7984-A2-GB20-10  
vi  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
About the Hotwire 7984  
Standalone Termination Unit  
1
M/HDSL Overview  
Hotwiret Multirate High-bit-rate Digital Subscriber Line (M/HDSL) 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 products can transport at full (2.048 Mbps) or fractional payload rates  
over a 4-wire, full-duplex circuit over varying distances based on the conditions of  
the 4-wire loop. Examples include support for router, multiplexer and PBX  
connections on 24 gauge (.5 mm) cable up to 21,000 feet (6.4 km).  
Hotwire M/HDSL is equipped with an automatic configuration capability that  
reduces the M/HDSL installation process to a simple plug and play mode. Simply  
connecting the units to the line automatically configures the customer for the  
maximum data rate supported by the local loop. M/HDSL units can also be  
configured at fixed line speeds to achieve maximum distances.  
Hotwire 7984 Termination Unit Features  
The Hotwire 7984 M/HDSL Standalone Termination Unit is an endpoint for the  
chassis-mounted Hotwire 8784 M/HDSL Termination Unit housed in the Hotwire  
8600 or 8800 Digital Subscriber Line Access Multiplexer (DSLAM).  
Two Hotwire 7984 M/HDSL Standalone Termination Units can also be configured  
to operate in a central office LTU to customer premises NTU environment.  
The 7984 Standalone Termination Unit offers these standard features:  
H
H
Embedded Operations Channel (EOC). Provides remote SNMP Traps,  
Telnet session capability over the M/HDSL link, and download capabilities.  
Asynchronous Terminal Interface (ATI). Provides a menu-driven  
VT100-compatible terminal interface for configuring and managing the  
termination unit locally or remotely by Telnet session.  
7984-A2-GB20-10  
February 1999  
1-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
About the Hotwire 7984 Standalone Termination Unit  
H
H
Local Management (standalone unit). Provides local management using a:  
Terminal or equivalent through the COM port of the unit  
Telnet through the COM port of the unit  
— NMS connection through the 10BaseT port  
Remote Management (DSLAM card). Provides remote management using:  
— VT100 Terminal or PC via the Management Serial port of the DSLAM  
— Network Management System (NMS) via the COM port or MCC port of  
the DSLAM  
— Using SNMP or Telnet through the 10BaseT port or the Internal  
Management Channel (IMC)  
Telnet over the EOC  
H
H
Alarm Indication. Provides front panel status LEDs.  
Diagnostic Testing. Provides the capability to diagnose device and network  
problems and perform digital loopbacks, pattern tests, and self-test.  
H
Device and Performance Monitoring. Provides the capability of tracking  
and evaluating the unit’s operation, including health and status, and error-rate  
monitoring.  
February 1999  
7984-A2-GB20-10  
1-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
About the Hotwire 7984 Standalone Termination Unit  
Network Configuration  
Figure 1-1 shows several configurations including a network application using a  
2-port Hotwire 8784 M/HDSL Termination Unit in a central office (CO). In this  
configuration, a frame relay switch and a router are connected, through the  
termination unit, to partner units supporting a host or router, and frame relay  
encapsulated or unframed data.  
This figure also shows a standalone-to-standalone configuration using either  
another Hotwire 7984 M/HDSL standalone unit with a DSX-1 interface or a  
Hotwire 7985 M/HDSL standalone unit with an EIA-530A interface.  
DSX-1  
T1 Host  
CO Site  
(Frame Relay  
7984  
Frame  
Relay  
Encapsulated  
Data)  
Switch  
DSX-1  
DSX-1  
DSX-1  
Router  
(Frame Relay  
Encapsulated  
Data)  
Router  
DSX-1  
1.544 Mb  
7984  
EIA-530  
Router  
7985  
8784 Termination Unit  
in 8600 DSLAM  
Customer  
Premises (CP)  
CO Site  
LTU  
CP  
NTU  
7984  
7984  
DSX-1  
DSX-1  
CO Site  
LTU  
CP  
NTU  
7984  
7985  
DSX-1  
EIA-530A  
99-16150a-01  
Figure 1-1. Sample M/HDSL Configurations  
7984-A2-GB20-10  
February 1999  
1-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
About the Hotwire 7984 Standalone Termination Unit  
Front Panel LED Status Indicators  
Figure 1-2 shows the front panel of the 7984 Standalone Termination Unit. For  
TM  
7984 M/HDSL  
98-16116a  
Figure 1-2. Hotwire 7984 Standalone Termination Unit Front Panel  
Rear Panel Interface Connections  
Figure 1-3 shows the physical interfaces of the 7984 Standalone Termination  
Unit.  
POWER  
COM  
DSX-1  
DSL  
I
O
98-16117  
Figure 1-3. Hotwire 7984 Standalone Termination Unit Rear Panel  
February 1999  
7984-A2-GB20-10  
1-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
About the Hotwire 7984 Standalone Termination Unit  
SNMP Management Capabilities  
The termination unit supports 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  
http://www.paradyne.com. The following MIBs are supported:  
H
H
H
H
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 MIB (RFC 1406) – Reports the performance status of the DSX-1  
interface and supports the features found on the DSX-1 Performance  
Statistics screen.  
RS-232-Like MIB (RFC 1659) – Defines objects for managing RS-232-type  
interfaces (e.g., V.35, RS-422, RS-423, etc.) and supports the synchronous  
data port on the DSU.  
Enterprise MIB – Supports configuration, status, statistics, and tests.  
SNMP Trap Support  
The 7984 Standalone Termination Unit supports traps as defined in RFC 1215.  
Figure 1-4 illustrates a typical M/HDSL SNMP configuration. Refer to Chapter 8,  
Operation, Maintenance  
and Provisioning Center  
Network  
8784  
SNMP NMS  
DSL  
3
2
1
DSX-1  
T
AC  
T5A  
250V  
SYSTEM  
SYSTEM  
G.703 ALRM  
DSL R  
LIN-
Router  
4
8
V
R
T
N
A
B
A
B
G.703 ALRM  
DSL POR  
LINK-UP  
DC FUSES  
T4A, MIN. 48V  
F
AN  
DC PWR  
5
.
AC  
INPUT  
4
1
6
.
.
Data  
3
2
.
ALM  
A
B
48VDC CLASS  
2
OR  
A
B
STACK  
IN  
OUT  
SERIAL  
MCC  
1
2
3
LIMITED PWR SOURCE  
POSITION  
EOC  
7984  
8600  
DSLAM  
Ethernet  
Interface  
Ethernet  
LAN  
99-16114a-01  
Figure 1-4. HDSL SNMP Configuration  
7984-A2-GB20-10  
February 1999  
1-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
About the Hotwire 7984 Standalone Termination Unit  
This page intentionally left blank.  
February 1999  
7984-A2-GB20-10  
1-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Using the Asynchronous Terminal  
Interface  
2
User Interface Access  
You can communicate with the Hotwire 7984 Standalone Termination Unit with an  
asynchronous terminal interface (ATI) using one of the following methods:  
H
H
Direct connection through the COM port of the standalone unit or through the  
serial port of the DSLAM MCC.  
Telnet session through the Embedded Operations Channel (EOC).  
NOTE:  
Only one 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  
Options, in Appendix A, Configuration Option Tables).  
Security can limit ATI access several ways. To limit user access or set up login  
Communication 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.  
7984-A2-GB20-10  
February 1999  
2-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Using the Asynchronous Terminal Interface  
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 the ATI is already in use, you will see a connection refused or  
connection failed message (if you are using a Telnet session), or you will  
see the IP address of the other user (if you are using the Management Serial  
port).  
If security is enabled on the 7984 Standalone Termination Unit and you used  
Telnet to access it directly (you did not log in through the MCC), the system  
prompts you for a login ID and password.  
Login  
Hotwire  
Model: 7984  
LOGIN  
Login ID:  
Enter Password:  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions Exit  
After you enter a valid login ID and password, the Main Menu appears. 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 7,  
February 1999  
7984-A2-GB20-10  
2-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Using the Asynchronous Terminal Interface  
main  
Access Level: Administrator  
Hotwire  
Model 7984  
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. The  
four branches of the Main menu are as follows:  
Select . . .  
To . . .  
Status  
View system status, diagnostic test results, statistics, LEDs, and device  
identity information.  
Test  
Select and cancel tests for the termination 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 termination unit.  
After selecting an option, what appears on the screens depends on the:  
H
H
Current configuration – How your termination 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.  
7984-A2-GB20-10  
February 1999  
2-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Using the Asynchronous Terminal Interface  
The following illustration shows the menu paths to the different ATI screens.  
Main  
Status  
Test  
Configuration  
Control  
System and Performance Display Identity  
Change  
Identity  
Download  
Code  
Reset  
Device  
Test Status  
Statistics  
LEDs  
Administer  
Logins  
Apply  
Download  
Network  
Error  
Statistics  
Network  
DSX-1  
Performance Statistics  
Statistics  
Network Device Abort  
Factory Configuration Current Configuration  
Config Loader Edit/Display  
and  
Tests  
All  
DSX-1 Test  
Tests  
Network DSX-1 System Communication Management  
Options  
Port  
and  
Communication  
Telnet Communication General SNMP SNMP NMS SNMP  
Session Protocol Options Management  
Security  
Traps  
99-16113-01  
February 1999  
7984-A2-GB20-10  
2-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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  
Hotwire  
Model: 7984  
NETWORK INTERFACE OPTIONS  
Margin Threshold:  
–3db  
Excessive Error Rate Threshold: 1E–5  
Peer IP Address:  
111.255.255.000 Clear  
Input  
Fields  
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 n  
System  
Messages  
Field Value  
Choices  
7984-A2-GB20-10  
February 1999  
2-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
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  
Return (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.  
February 1999  
7984-A2-GB20-10  
2-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
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  
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.  
Exit  
E or e  
M or m  
N or n  
D or d  
U or u  
R or r  
S or s  
Terminate the async terminal session.  
Return to the Main Menu screen.  
Enter new data.  
MainMenu  
New  
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  
7984-A2-GB20-10  
February 1999  
2-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
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 screen, type s or S (Save).  
3. Press Enter.  
4. To return to the screen area above the dotted line, press Ctrl-a again.  
main/config/network  
Hotwire  
Model: 7984  
NETWORK INTERFACE OPTIONS  
Margin Threshold:  
–3db  
Excessive Error Rate Threshold: 1E–5  
Peer IP Address:  
111.255.255.000 Clear  
Clear  
Circuit Identifier:  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
February 1999  
7984-A2-GB20-10  
2-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
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.  
7984-A2-GB20-10  
February 1999  
2-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Using the Asynchronous Terminal Interface  
This page intentionally left blank.  
February 1999  
7984-A2-GB20-10  
2-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Initial Startup and Configuration  
3
Overview  
This chapter provides instructions on how to access and configure your unit for  
the first time. This chapter includes procedures for:  
H
H
H
H
Connecting power to the unit.  
Connecting the unit to the network.  
Connecting a system terminal.  
Providing initial unit identity information or changing existing identity  
information.  
H
H
H
Configuring your unit using internal switchpacks or using the Configuration  
Edit menus.  
Choosing the current or factory default configuration options or downloading  
configuration options from a TFTP server.  
Modifying current configuration options using the Configuration Edit/Display  
menu.  
H
H
Saving your changes.  
Downloading unit firmware from a TFTP server.  
7984-A2-GB20-10  
February 1999  
3-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Initial Startup and Configuration  
Connecting Power to the Unit  
If your package includes a power pack: Plug the power pack into an ac outlet  
having a nominal voltage rating between 100–240 Vac. Connect the output cable  
of the power pack to the connector marked POWER on the rear panel.  
If your package includes a direct-connection +24 Vdc power cable: Connect the  
an Optional External +24 Vdc Power Source.  
If you will use a –48 Vdc power supply: Connect the unit to an external –48 Vdc  
power source as described in the documentation shipped with the power supply  
and power cable.  
Connecting the Unit to an Optional External +24 Vdc Power Source  
Using the dc power cable, the Hotwire 7984 Standalone Termination Unit is  
capable of operating on a +24 Vdc power supply.  
" Procedure  
To use the dc power cable:  
1. Connect the green wire to a suitable ground.  
2. Connect the orange wire to the +24 Vdc source.  
3. Connect the white wire to the return.  
4. Cut the black, red, and blue wires off at the outer insulation.  
5. Plug the power connector into the 7984 Standalone Termination Unit.  
Black  
1
2
3
4
5
6
X
Red  
Green  
White  
Orange  
Blue  
X
Ground  
RTN  
+24 Vdc  
X
99-14158-02  
+24 Vdc Power Supply Pinouts  
February 1999  
7984-A2-GB20-10  
3-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Initial Startup and Configuration  
Connecting to the Network  
" Procedure  
To connect your unit to the network:  
1. Connect one end of the network cable into the rear panel DSL jack.  
2. Connect the other end to your DSL network interface.  
NOTE:  
Do not use a flat VF network cable as this may severely degrade the  
performance of the termination unit. Use only Cat 5 twisted-pair network  
cable.  
Connecting to a System Terminal  
An optional system maintenance terminal may be attached to your Hotwire  
7984 Standalone Termination Unit through the modular jack on the rear panel.  
The system maintenance terminal allows you to view the status of the unit, and  
change configuration options. The terminal must be a VT100-compatible terminal  
or a PC running terminal emulation software.  
" Procedure  
To connect your unit to a system terminal:  
1. Connect the 9-pin end of the terminal cable into a COM port on your PC.  
2. Plug the other end into the modular jack on the rear panel.  
— If your PC requires a 25-pin connector to the COM port, see Appendix C,  
3. Set the communication parameters on your PC or terminal to:  
— 9600 baud  
— 8 bit characters  
— no parity  
— 1 stop bit  
— no flow control  
7984-A2-GB20-10  
February 1999  
3-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
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 Identity screen, follow this  
menu selection sequence:  
Main Menu Control Change Identity  
main/control/change_identity  
Hotwire  
Model: 7984  
IDENTITY  
System Name:  
lllQJ98-001  
Clear  
Clear  
Clear  
System Location: Bldg. A412, 2nd Floor, Left cabinet  
System Contact: C. Parker 800-727-2396 pager 888-555-1212  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
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 (^)  
Select Clear to reset a field to a null value.  
February 1999  
7984-A2-GB20-10  
3-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
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.  
7984-A2-GB20-10  
February 1999  
3-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Initial Startup and Configuration  
Choosing a Configuration Mode  
You can make configuration changes either through a VT100-compatible terminal  
and the unit’s Configuration menus, or by manually changing switches on the  
board. The unit comes defaulted to allow settings to be made through the  
Configuration menus.  
Configuring the Unit Using the Configuration Menus  
Use the Configuration menu to select, display, or change configuration option  
settings.  
NOTE:  
The 7984 Standalone Termination Unit is pre-configured as an NTU. If you  
are using this unit as an NTU, the following configuration options may not  
need to be performed.  
The 7984 Standalone Termination Unit is shipped with factory settings in the  
Default Factory configuration area. You can find default information by:  
H
H
Accessing the Configuration branch of the 7984 Standalone Termination Unit  
menu.  
The 7984 Standalone Termination 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 Configuration Option Set  
Current Configuration  
The 7984 Standalone Termination 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, you can  
customize the configuration options for your application.  
February 1999  
7984-A2-GB20-10  
3-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Initial Startup and Configuration  
Configuring the Unit Using the Internal Switches  
Use internal Switchpacks S1 and S2 to manually configure the unit. Use  
!
HANDLING PRECAUTIONS FOR  
STATIC-SENSITIVE DEVICES  
This product is designed to protect sensitive components from damage  
due to electrostatic discharge (ESD) during normal operation. When  
performing installation procedures, however, take proper static control  
precautions to prevent damage to equipment. If you are not sure of the  
proper static control precautions, contact your nearest sales or service  
representative.  
496-15104  
" Procedure  
To configure the unit using internal Switchpacks S1 and S2:  
1. Power down the unit and remove the enclosure cover, exposing the circuit  
board.  
3. Set Switch 1 on Switchpack S1 to ON to enable Switchpacks 1 and 2.  
4. After you enable the switchpacks, you must set the switches to your desired  
5. Replace and secure the cover.  
6. Power up the board to reset and enable the new configuration.  
7984-A2-GB20-10  
February 1999  
3-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Initial Startup and Configuration  
Switchpack Locations  
Use Figure 3-1 to locate Switchpacks S1 and S2.  
Switchpack S1 & S2  
Front  
S2  
S1  
98-16073a  
Rear  
Figure 3-1. Hotwire 7984 Standalone Termination Unit Switchpack Locations  
February 1999  
7984-A2-GB20-10  
3-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Initial Startup and Configuration  
Switchpack Definitions  
Manually change configuration options by moving Switchpack S1 DIP switches  
on the card. Table 3-1 lists Switchpack S1 definitions.  
Table 3-1. Switchpack S1 Definitions  
Switch # . . .  
Allows you to . . .  
Default in Bold  
1
Enable or disable Switchpacks S1 and S2.  
OFF = Switchpacks Disabled  
ON = Switchpacks Enabled  
2
3
Not used  
Select the unit’s primary timing source. Only valid for units configured  
as LTU.  
OFF = Internal Clock  
ON = External Clock  
4
Control the unit’s T1 line coding.  
OFF = B8ZS  
ON = AMI  
5
Control the unit’s framing format  
OFF = ESF  
ON = D4  
6, 7, 8  
Control the unit’s equalization. The three switches form a binary value  
used as an index to the table of equalization values. Off denotes 0 and  
On denotes 1.  
000 = 0–133 feet  
001 = 133–266 feet  
010 = 266–399 feet  
011 = 399–533 feet  
100 = 533–655 feet  
101 = 0–133 feet  
110 = 0–133 feet  
111 = 0–133 feet  
7984-A2-GB20-10  
February 1999  
3-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Initial Startup and Configuration  
Table 3-2 lists Switchpack S2 definitions.  
Table 3-2. Switchpack S2 Definitions  
Switch # . . .  
Allows you to . . .  
Default in Bold  
1
Control whether the unit is an LTU or an NTU.  
OFF = NTU  
ON = LTU  
2
Control whether the unit automatically adjusts to the best line rate for  
conditions, or is fixed at the rate set by switches S2-3 through S2-5.  
OFF = Fixed Rate  
ON = AutoRate Enable  
3, 4, 5  
Control the DSL line rate of the unit. The three switches form a binary  
value used as an index to the table of line rates. Off denotes 0 and On  
denotes 1. Refer to Table 3-3.  
000 (all Off) = 1552 kbps  
6
7
8
Control whether Telco loopbacks are supported.  
OFF = Enabled  
ON = Disabled  
Control whether remote Telco loopbacks are supported.  
OFF = Disabled  
ON = Enable  
Switch between two versions of firmware. The 7984 has two banks of  
flash memory used to hold executable firmware. This switch allows you  
to switch between the two versions of firmware. This switch is  
independent from the position of Switch 1 on Switchpack S1  
(switchpack enable/disable). Emergency Use Only.  
OFF = Current Firmware  
ON = Previous Firmware  
Use Table 3-3 to set the DSL Line Rate. Defaults are shown in bold.  
Table 3-3. DSL Line Rate, Switches 3–5 on Switchpack S2  
Switch Position  
DSL Line Rate  
5
4
3
OFF OFF ON  
1552 kbps  
1552 kbps  
400 kbps  
528 kbps  
784 kbps  
1040 kbps  
1552 kbps  
1552 kbps  
OFF ON  
OFF ON  
OFF  
ON  
ON  
ON  
ON  
ON  
OFF OFF  
OFF ON  
ON  
ON  
OFF  
ON  
OFF OFF OFF  
February 1999  
7984-A2-GB20-10  
3-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Initial Startup and Configuration  
Accessing and Displaying Configuration Options  
To display configuration options, you must first load a configuration 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  
Hotwire  
Model: 7984  
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.  
Default Factory  
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.  
7984-A2-GB20-10  
February 1999  
3-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Initial Startup and Configuration  
Configuration Edit/Display  
The Configuration Edit/Display screen is displayed when the current, customer, or  
default configuration is loaded. 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  
Hotwire  
Model: 7984  
CONFIGURATION EDIT/DISPLAY  
Network  
DSX-1  
System Options  
Communication Port  
Management and Communication  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
See Appendix A, Configuration Option Tables, for a list and explanation of the  
configuration options available.  
Select . . .  
To Access the . . .  
To Configure the . . .  
Network  
DSL network interface on  
the unit.  
DSX-1  
DSX interface.  
System  
Options  
General system options of  
the unit.  
Port  
Management  
and  
Communication  
unit through SNMP and  
Telnet.  
Table A-6  
H General SNMP Management  
Table A-8  
February 1999  
7984-A2-GB20-10  
3-12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Initial Startup and Configuration  
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  
Hotwire  
Model: 7984  
CONFIGURATION LOADER  
000.000.000.000  
Image File Name:  
TFTP Server IP Address:  
Clear  
Clear  
TFTP Transfer Direction: Download from Server  
Destination:DSL  
Start Transfer: Yes  
Packets Sent:  
Packets Received:  
Bytes Sent:  
0000000  
0000000  
0000000  
Bytes Received:  
Transfer Status:  
0000000  
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 file names 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 file names 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.  
7984-A2-GB20-10  
February 1999  
3-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Initial Startup and Configuration  
2. Position the cursor in the TFTP Server IP Address field. Enter the TFTP  
server IP address.  
3. 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 or COM if the TFTP destination is the COM port.  
4. Position the cursor in the TFTP Transfer Direction field. Use the spacebar to  
select Download from Server or Upload to Server.  
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 field and select Yes to  
activate a new downloaded configuration. Press Enter.  
NOTE:  
The configuration options DSL Mode and Telnet Session are not changed  
when a new configuration is loaded. You must change these settings with the  
appropriate configuration menus after the new configuration is activated. See  
Appendix A, Configuration Option Tables.  
February 1999  
7984-A2-GB20-10  
3-14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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  
Hotwire  
Model: 7984  
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 DSL Mode configuration option is changed, a message displays on the  
Save Configuration screen 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.  
7984-A2-GB20-10  
February 1999  
3-15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Initial Startup and Configuration  
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  
Hotwire  
Model: 7984  
DOWNLOAD CODE  
Image File Name:  
TFTP Server IP Address:  
Destination:  
Clear  
Clear  
000.000.000.000  
DSL  
Start Transfer:  
Yes  
Packets Sent:  
Packets Received:  
Bytes Sent:  
0000000  
0000000  
0000000  
Bytes Received:  
Transfer Status:  
0000000  
Transfer Pending  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit  
" 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.  
3. 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 or COM if the TFTP destination is the COM port.  
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.  
5. Press the Escape key to return to the Control menu. Select Apply Download.  
6. On the Apply Download screen, select Yes to reset the card and activate the  
code.  
February 1999  
7984-A2-GB20-10  
3-16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Monitoring the Unit  
4
What to Monitor  
This chapter presents information on how to access and monitor Hotwire  
7984 Standalone Termination Units on the T1 network. You can monitor 7984  
Standalone Termination Unit operations by viewing:  
H
H
H
H
H
H
System and Test Status screens  
Highest priority Health and Status messages on the last line of all screens  
Network Error Statistics screen  
Network Performance Statistics screen  
DSX-1 Statistics screen  
Display LEDs screen or LEDs on the 7984 Standalone Termination Unit front  
panel  
7984-A2-GB20-10  
February 1999  
4-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Monitoring the Unit  
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  
Hotwire  
Model: 7984  
SYSTEM AND TEST STATUS  
SELF-TEST RESULTS  
Page 1 of 1  
HEALTH AND STATUS  
TEST STATUS  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
System Operational Passed No Test Active  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
ESC for previous menu MainMenu Exit  
PgUp  
PgDn  
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 4-1, Health and Status Messages.  
Self-Test Results – Results of the Diagnostic test run on the device itself.  
Messages.  
February 1999  
7984-A2-GB20-10  
4-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Monitoring the Unit  
Health and Status  
The following messages can 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 4-1. Health and Status Messages (1 of 2)  
Message  
What Message Indicates What To Do  
System Operational There are no problems  
detected.  
LOS at Net, Pt 1  
An LOS (Loss Of Signal)  
condition has been  
1. Verify that the network cable is  
securely attached at both ends.  
detected on the network  
interface. No signal is  
being received on Port 1,  
possibly due to a local  
network problem.  
2. Verify proper NTU and LTU  
configuration  
3. Contact network provider.  
OOF at Net, Pt 1  
An OOF (Out Of Frame)  
condition has been  
detected at the network  
interface.  
Contact network provider.  
LOS at DSX-1, Pt 1  
An LOS (Loss Of Signal)  
condition has been  
detected on the DSX-1  
interface.  
1. Verify proper framing.  
2. Contact network provider.  
NTU/LTU Mis match, The NTU is not configured Configure units to match.  
Pt 1  
the same as the LTU.  
LOF at DSX-1, Pt 1  
An LOF (Loss Of Frame)  
condition has been  
detected on the DSX-1  
interface.  
1. Verify that the network cable is  
securely attached at both ends.  
2. Contact network provider.  
AIS at DSX-1, Pt 1  
EER at Net, Pt 1  
An Alarm Indication Signal 1. Verify that the units line framing  
(AIS) is being received by  
the DSX-1 interface.  
and line coding are compatible.  
2. Contact network provider.  
An EER (Excessive Error  
Rate) condition has been  
detected on the network  
interface at Port 1. The  
condition is cleared when  
the error rate falls below  
the threshold value  
1. Ignore condition if 511 test active.  
2. Contact network provider.  
currently configured.  
EER at DSX-1, Pt 1 An EER (Excessive Error  
Rate) condition has been  
detected on the DSX-1  
1. Verify the attached equipment  
coding is compatible.  
2. Contact network provider.  
interface.  
Yellow alarm at  
DSX-1, Pt 1  
A Yellow Alarm Indication  
signal is being received by  
the DSX-1 interface.  
1. Verify that the units line framing  
and line coding are compatible.  
2. Contact network provider.  
7984-A2-GB20-10  
February 1999  
4-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Monitoring the Unit  
Table 4-1. Health and Status Messages (2 of 2)  
Message  
What Message Indicates What To Do  
Net Margin  
Threshold, Pt 1  
The signal-to-noise margin 1. Reconfigure the unit to a higher  
has exceeded the  
Net Margin Threshold.  
configured threshold.  
2. Contact network provider.  
Primary Clock Failed A failure has occurred in  
1. Verify that the network cable is  
securely attached at both ends.  
(DSX-1, Pt 1)  
the primary clock source  
configured from the  
Network, DSX, or from the  
card internal clock.  
2. Contact network provider.  
DeviceFailed  
yyyyyyyy  
An internal error has been 1. Provide the 8-digit failure code  
detected by the operating  
software. yyyyyyyy  
shown (yyyyyyyy) to your service  
representative.  
indicates the 8-digit  
hexadecimal failure code.  
2. Reset the 7984 Standalone  
Termination Unit to clear the  
condition and message.  
Download Failed  
A firmware download was Repeat the download.  
interrupted.  
Net Com Link Down The Network  
communication link is  
1. Verify that the network cable is  
securely attached at both ends.  
down. Communications  
between the management  
system and the LTU/NTU  
is not possible.  
2. Verify the link protocol for the  
COM port is configured correctly.  
February 1999  
7984-A2-GB20-10  
4-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Monitoring the Unit  
Self-Test Results  
The results of the last power-up or reset self-test appear in the middle column of  
the System and Test Status screen.  
Table 4-2. Self-Test Results Messages  
Message  
What Message Indicates  
What To Do  
1. Reset the unit and try again.  
CPU Failed  
The CPU failed internal testing.  
2. Call your service  
Device  
Failed  
One or more of the Unit’s integrated  
circuit chips failed device-level  
testing.  
representative for assistance.  
1. Reset the unit and try again.  
DSX-1  
Failed, Pt 1  
The Unit failed to loop data on the  
DSX-1 interface on Port 1.  
2. Call your service  
representative for assistance.  
Memory  
Failed  
The 7984 Standalone Termination  
Unit failed memory verification.  
FPGA  
A failure in the FPGA was detected. 1. Reset the unit and try again.  
Failed, Pt1  
2. Call your service  
representative for assistance.  
DataPath  
Failed, Pt1  
The unit failed to loop data between  
the DSX-1 Port and the DSL loop.  
1. Reset the unit and try again.  
2. Call your service  
representative for assistance.  
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.  
Passed  
No errors were detected.  
7984-A2-GB20-10  
February 1999  
4-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Monitoring the Unit  
Test Status  
The Test Status messages in the following table appear in the right column of the  
System and Test Status screen.  
Table 4-3. Test Status Messages  
Test Status Message Meaning  
No Test Active  
No tests are currently running.  
LLB Test Active, Pt 1  
DLB Test Active, Pt 1  
RLB Test Active, Pt 1  
511 Test Active, Pt 1  
A network Line Loopback test is active on Port 1.  
A Data Terminal Loopback test is active on Port 1.  
A Repeater Loopback test is active on Port 1.  
A 511 Test and Monitor is active on the DSL Port 1 network  
interface.  
Lamp Test Active  
The Lamp Test is active, causing the LEDs on the front panel to  
light.  
Telco LLB Active, Pt1  
A line loopback is active on DSX-1 Port 1.  
February 1999  
7984-A2-GB20-10  
4-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Monitoring the Unit  
Viewing Network Error Statistics  
The 7984 Standalone Termination Unit maintains error statistics on the network  
DSL interface for Port 1. 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  
NETWORK ERROR STATISTICS  
Current Interval Timer: 002  
Hotwire  
Model: 7984  
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 PgUp or PgDn to view more statistics, Select ClrNear or ClrFar to clear  
the near- and far-end statistics to zero.  
Network Error Statistics are collected for:  
H
H
ES (Errored Seconds): Seconds during which one or more CRC 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 a complete  
900-second interval.  
7984-A2-GB20-10  
February 1999  
4-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Monitoring the Unit  
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 resets every 15 minutes.  
Error Events  
Counter  
A running total of CRC errors. Range 0–65535. This counter  
resets when the near-end data is cleared.  
Current Interval  
Interval xx  
Performance data for the current 15 minutes.  
Historical performance data for up to 96 15-minute intervals  
(24 hours) where the value of xx is from 01 to 96.  
Worst Interval  
The number of the interval with the worst (highest) performance  
data for both the near- and far-end statistics. If two or more  
intervals are equal, the oldest interval is displayed.  
Near and Far Tot  
A 24-hour running total of the near- 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  
NETWORK PERFORMANCE STATISTICS  
Hotwire  
Model: 7984  
Payload Rate: 1536 Kbps  
DSL Line Rate: 1552 Kbps  
Current Interval Timer: 002  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
––Mrgn––  
Near Far  
Current Int: +02 +01  
Interval 01 +02  
––XmtPw–  
Near Far  
+03 +03  
+03  
––RxGn––  
Near Far  
+02 +02  
+02  
–Complete–  
Near Far  
Yes Yes  
Yes No  
Interval 02 +02 +01  
Interval 03 +02 +01  
Interval 04 +02 +01  
Interval 05 +02 +01  
Interval 06 +02 +01  
Interval 07 +02 +01  
+03 +03  
+03 +03  
+03 +03  
+03 +03  
+03 +03  
+03 +03  
+02 +02  
+02 +02  
+02 +02  
+02 +02  
+02 +02  
+02 +02  
Yes Yes  
Yes Yes  
Yes Yes  
Yes Yes  
Yes Yes  
Yes Yes  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl–a to access these functions, ESC for previous menu MainMenu Exit  
PgUp PgDn  
Select PgUp or PgDn to view more statistics.  
February 1999  
7984-A2-GB20-10  
4-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Monitoring the Unit  
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 resets every 15 minutes.  
Payload Rate  
DSL Line Rate  
Current Interval  
Interval xx  
The Payload Rate across the DSL interface.  
The rate of the DSL line (400 to 1552 kbps).  
Performance data for the current 15 minutes.  
Historical performance data for up to 96 15-minute intervals  
(24 hours) where the value of xx is from 01 to 96.  
Network Performance Statistics are collected for:  
H
H
H
H
Mrgn: Margin, the signal-to-noise ratio (SNR) less an SNR reference value.  
XmtPw: The transmit power level.  
RxGn: The receiver gain level.  
Complete: Whether the interval register contains data for a complete  
900-second interval.  
7984-A2-GB20-10  
February 1999  
4-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Monitoring the Unit  
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  
DSX-1 PERFORMANCE STATISTICS  
Current Interval Timer: 2  
Hotwire  
Model: 7984  
Error Events Counter: 0000  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
––ES––  
––UAS––  
––SES––  
––BES–– ––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  
Y
none  
none  
none  
none  
none  
none  
none  
Worst Interval: 24  
14  
14  
09  
18  
Tot (valid 96):00010  
00000  
00000  
00000  
002  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
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.  
LOFC (Loss of Frame Count): Contains the number of times that an LOF is  
declared.  
February 1999  
7984-A2-GB20-10  
4-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Monitoring the Unit  
H
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 resets every 15 minutes.  
Current Interval  
Interval xx  
Performance data for the current 15 minutes.  
Historical performance data for up to 96 15-minute intervals  
(24 hours) where the value of xx is from 01 to 96.  
Error Events  
Counter  
A running total of CRC and OOF events. Total range = 0–65535.  
Counter resets when the statistics are cleared.  
7984-A2-GB20-10  
February 1999  
4-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Monitoring the Unit  
Viewing 7984 Standalone Termination Unit LEDs  
The 7984 Standalone Termination Unit LEDs can be viewed on the Display LEDs  
status screen. This ATI status screen is available locally and remotely.  
The three groups of LEDs are:  
H
H
H
General LEDs display the status of the unit  
DSX-1 LEDs provide the status of the DSX-1 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  
Hotwire  
Model: 7984  
DISPLAY LEDs  
DSX-1  
GENERAL  
DSL LOOP  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
ALRM:Off  
TEST On  
P1:Link Up  
P1:Lnk Up  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
ESC for previous menu MainMenu Exit  
The LED status display screen is updated every 5 seconds. For information about  
the meaning of 7984 Standalone Termination Unit LEDs, see 7984 Standalone  
February 1999  
7984-A2-GB20-10  
4-12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Monitoring the Unit  
7984 Standalone Termination Unit LEDs  
The following table contains a description of the LEDs on the 7984 Standalone  
Termination Unit front panel.  
TM  
7984 M/HDSL  
98-16116a  
Type  
LED  
LED is . . .  
Indicating . . .  
General  
POWER  
Green  
Off  
Unit has power.  
No power to the Unit.  
Green,  
Flashing  
Unit is in minimum mode and a download is  
required.  
ALARM  
TEST  
Red  
Device failure, or Power-On Self-Test (POST)  
has failed.  
Off  
Self-test passed.  
Amber  
Loopback test or 511 test pattern in progress.  
Self-test in progress.  
Amber,  
flashing  
Off  
No tests.  
DSL  
DSL  
Green  
DSL link is up.  
Amber  
DSL training in progress.  
An OOF condition exists.  
Amber,  
flashing  
Off  
The DSL Link is down.  
DSX-1  
DSX-1  
Green  
Recoverable signal present on the DSX-1  
network.  
Amber  
Remote Alarm Indication (RAI) present.  
Amber,  
flashing  
An OOF or AIS condition exists.  
Off  
The DSL LINK is down.  
7984-A2-GB20-10  
February 1999  
4-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Monitoring the Unit  
This page intentionally left blank.  
February 1999  
7984-A2-GB20-10  
4-14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Testing  
5
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  
Hotwire  
Model: 7974  
TEST  
Network & DSX-1 Tests  
Device Tests  
Abort Tests  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit  
Select . . .  
To . . .  
Network and DSX-1 Tests  
Device Tests  
Start and stop tests on the DSX or network interface.  
Start and stop lamp test.  
Abort All Tests  
To abort all 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.  
7984-A2-GB20-10  
February 1999  
5-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
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 Tests  
main/test/network_DSX  
Hotwire  
Model: 7974  
NETWORK & DSX TESTS  
Command Status Results  
Test  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Local Loopbacks  
Line Loopback:  
Start  
Start  
Start  
Start  
Inactive  
Inactive  
Inactive  
Inactive  
00:00:00  
00:00:00  
00:00:00  
00:00:00  
Payload Loopback:  
Repeater Loopback:  
DTE Loopback:  
Remote Loopbacks  
Send Line Loopback: Down  
Send  
Stop  
Inactive  
Active  
00:00:00  
Pattern Tests  
Send and Monitor 511  
hh:mm:ss - Errors 99999+  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
ResetMon  
MainMenu  
Exit  
Use the Command column to start or stop a test. When the Status column  
shows that a test is Inactive, Start is displayed; when a test is Active, Stop is  
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.  
February 1999  
7984-A2-GB20-10  
5-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Testing  
Line Loopback  
Line Loopback (LLB) loops the received signal on the network interface back to  
the network without change.  
CAP  
CAP  
T1  
AIS  
DSL  
Port  
DSX-1  
Port  
LIU  
Transceiver Framer  
Framer  
98-16112  
" Procedure  
To run a Line Loopback:  
1. Position the cursor at the Start command next to Line Loopback on the  
Network 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.  
Line Loopback cannot be started when a Repeater Loopback, DTE Loopback,  
Remote DCLB, network-initiated Line Loopback, or Telco-initiated tests are in  
progress.  
7984-A2-GB20-10  
February 1999  
5-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Testing  
Repeater Loopback  
Repeater Loopback (RLB) loops the signal being sent from the data port back to  
the data port.  
CAP  
CAP  
T1  
DSL  
Port  
DSX-1  
Port  
LIU  
AIS  
Transceiver Framer  
Framer  
99-16111-01  
T1 to T1 Repeater Loopback  
CAP  
CAP  
T1  
DSL  
Port  
DSX-1  
Port  
LIU  
Transceiver Framer  
Framer  
98-16111  
T1 to V.35 Repeater Loopback  
" Procedure  
To run a Repeater Loopback:  
1. Position the cursor at the Start command next to Repeater Loopback on the  
Network 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 EOC to be lost to the  
remote unit.  
February 1999  
7984-A2-GB20-10  
5-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Testing  
DTE Loopback  
DTE Loopback loops the DSX signal back to itself before the signal is sent to the  
Framer.  
CAP  
CAP  
T1  
DSL  
Port  
DSX-1  
Port  
LIU  
All Ones  
Transceiver Framer  
Framer  
98-16110  
" Procedure  
To run a DTE Loopback:  
1. Position the cursor at the Start command next to DTE Loopback on the  
Network 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.  
7984-A2-GB20-10  
February 1999  
5-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Testing  
Send Remote 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  
CAP  
CAP  
CAP  
CAP  
T1  
AIS  
DSX-1  
Port  
LIU  
LIU  
Framer  
Framer Transceiver  
Transceiver Framer  
Framer  
98-16109  
" 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 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 Send Remote Line Loopback test manually.  
The Send Remote Line Loopback cannot be started when any other loopback or  
a Send and Monitor 511 test is active on the network interface.  
February 1999  
7984-A2-GB20-10  
5-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Testing  
Send and Monitor 511  
The LTU initiates the test by sending a command to the remote unit to send a  
511 test pattern. When the remote unit detects the command, it sends a  
511 pattern and lights the front panel test LED. Each unit will send and monitor  
the 511 pattern. The duration and results of the test are displayed on the Network  
Test screen of each unit.  
NOTE:  
The send and monitor test is not a loopback test. Each unit independently  
sends and monitors a 511 pattern.  
511  
CAP  
CAP  
511  
Mon  
Pattern  
T1  
CAP  
CAP  
T1  
511  
Gen  
AIS  
DSX-1  
Port  
511  
Pattern  
LIU  
LIU  
AIS  
511  
Mon  
Transceiver  
511  
Gen  
Transceiver  
Framer  
Framer  
Framer  
Framer  
98-16108  
" 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 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.  
7984-A2-GB20-10  
February 1999  
5-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
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  
Hotwire  
Model: 7974  
DEVICE TESTS  
Command  
Test  
Status  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Lamp Test: Start Inactive  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
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 Card  
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.  
February 1999  
7984-A2-GB20-10  
5-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Testing  
Ending an Active Test  
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 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.  
H
H
On each test screen is a Command column. To stop the test, press Enter  
when the cursor is on the Stop command.  
Use the Abort 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.  
Telco-Initiated Tests  
The Hotwire 7984 Standalone Termination Unit supports Telco-initiated tests as  
shown in the following table.  
Activation and  
Remote Line  
Loopback  
Line Loopback  
Payload Loopback  
Not Applicable  
Supported  
Deactivation  
In-Band Signal  
Bit-Oriented  
Supported  
Not Supported  
Supported  
Supported  
Message-Oriented  
Not Applicable  
Not Supported  
Not Applicable  
Telco-Initiated Line Loopback  
The Hotwire 7984 Standalone Termination Unit supports 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.  
CAP  
CAP  
T1  
DSL  
Port  
DSX-1  
Port  
LIU  
Telco  
All Ones  
Transceiver Framer  
Framer  
99-16252  
7984-A2-GB20-10  
February 1999  
5-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Testing  
Telco-Initiated Payload Loopback  
The Hotwire 7984 Standalone Termination Unit supports 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.  
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.  
Remote  
CAP  
Local  
T1  
CAP  
CAP  
CAP  
T1  
DSX-1  
Port  
DSX-1  
Port  
LIU  
LIU  
DSL  
Telco  
AIS  
Framer  
Framer Transceiver  
Transceiver Framer  
Framer  
98-16109  
February 1999  
7984-A2-GB20-10  
5-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Messages and Troubleshooting  
6
Overview  
There are many resources available to assess the status of the device and  
contribute to problem resolutions. Refer to the following sections:  
7984-A2-GB20-10  
February 1999  
6-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Messages and Troubleshooting  
Configuring SNMP Traps  
An SNMP trap can be automatically sent out through the EOC or the  
Management port to an SNMP manager when the 7984 Standalone Termination  
Unit detects conditions set by the user. These traps enable the SNMP manager to  
SNMP Traps, for details of SNMP traps supported by the 7984 Standalone  
Termination Unit.  
To configure the 7984 Standalone Termination Unit for SNMP traps, use the  
SNMP Traps Options screen to:  
H
H
Enable SNMP traps.  
Set the number of SNMP managers that receive SNMP traps from the 7984  
Standalone Termination Unit by entering an IP address and network  
destination for each SNMP manager specified.  
H
Select the type of SNMP traps to be sent from the 7984 Standalone  
Termination Unit.  
To configure SNMP Traps, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From →  
Management and Communication Options SNMP Traps Options  
main/config/management/trap  
Hotwire  
Model: 7984  
SNMP TRAPS OPTIONS  
Enable Number of Trap Managers: 5  
SNMP Traps:  
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  
Destination: DSL  
Destination: DSL  
Destination: DSL  
Destination: DSL  
Destination: DSL  
General Traps:  
Both  
Enterprise Specific Traps: Enable  
Link Traps:  
Both  
Link Traps Interfaces:  
Network  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Refer to Table A-9, SNMP Traps Options to configure SNMP traps.  
February 1999  
7984-A2-GB20-10  
6-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Messages and Troubleshooting  
Device Messages  
The Device Messages in Table 6-1, listed in alphabetical order, can appear in the  
messages area at the bottom of the ATI screens.  
Table 6-1. Device Messages (1 of 2)  
Device Message  
What Message Indicates  
What To Do  
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  
Invalid Character  
Action requested has  
successfully completed.  
No action needed.  
A nonprintable ASCII  
character has been  
entered.  
Reenter information using valid  
characters.  
Invalid – Data  
Terminal Initiated  
Loopback Active  
Network-initiated loopback  
was in progress when the  
selection was made.  
No action needed.  
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  
the 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 the  
test, or was active on the  
same interface when the  
test was selected.  
H Wait until other test ends.  
H Abort all tests from the Test  
menu screen.  
H Stop the test from the same  
screen the test was started  
from.  
Invalid entry at cursor  
(1...223, excluding  
127)  
Invalid range.  
Enter a value within the IP  
address range.  
7984-A2-GB20-10  
February 1999  
6-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Messages and Troubleshooting  
Table 6-1. 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. Reenter 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  
Reenter 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.  
0.0.0.0 is an invalid  
IP address  
An IP address of all zeroes Enter a valid, non-zero IP  
was entered.  
address.  
February 1999  
7984-A2-GB20-10  
6-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Messages and Troubleshooting  
Troubleshooting  
This 7984 Standalone Termination Unit is designed to provide you with many  
years of trouble-free service. If a problem occurs, however, refer to  
Table 6-2 for possible solutions.  
Table 6-2. Troubleshooting (1 of 2)  
Symptom  
Possible Cause  
Solutions  
Alarm LED is on.  
One of several alarm  
conditions exists. Health  
and Status displays the  
alarm condition.  
Messages, in Chapter 4, Monitoring  
the Unit, for a recommended action.  
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 the unit is configured  
properly. Verify IP address and  
communication port usage.  
Cannot access the  
unit via the ATI.  
H Reset the unit.  
Device Fail appears The unit detects an internal H Reset the unit.  
on the System and  
Test Status screen  
under Self-Test  
results.  
hardware failure.  
H Contact your service  
representative.  
No power, or the  
LEDs are not lit.  
The power cord is not  
Check that the power cord is  
securely attached at both ends.  
securely plugged into the  
wall receptacle and into the  
rear panel connection.  
The wall receptacle has no  
power.  
H Check the wall receptacle power  
by plugging in some equipment  
that is known to be working.  
H Check the power switch on the  
units rear panel.  
H Check the circuit breaker.  
H Verify that your site is not on an  
energy management program.  
Power supply has failed.  
LED is out.  
Replace power supply.  
An LED is not lit.  
Run the Lamp test. If the LED in  
question does not flash with the other  
LEDs, then contact your service  
representative.  
7984-A2-GB20-10  
February 1999  
6-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Messages and Troubleshooting  
Table 6-2. Troubleshooting (2 of 2)  
Symptom Possible Cause  
Solutions  
Not receiving data.  
H The network or data port H Check network and data port  
cables are not  
cables.  
connected (check front  
panel LEDs for more  
information).  
Chapter 5, Testing.  
H Stop the test or wait for the test to  
H A test is being executed  
on the unit (check the  
TEST LED on the front  
panel).  
end.  
H The far-end unit is  
H Make sure the far-end device is  
off-line.  
on.  
H The far-end unit is  
H Stop the far-end test.  
running a test.  
H An alarm condition exists  
H Check the far-end Health and  
in the far-end unit.  
Status messages.  
Power-Up Self-Test The unit has detected an  
H Reset the unit and try again.  
fails. Only Power  
and Alarm LEDs are  
on after power-up.  
internal hardware failure.  
H Contact your service  
representative.  
February 1999  
7984-A2-GB20-10  
6-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Security  
7
Overview  
The 7984 Standalone Termination Unit provides several methods of security by  
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.  
Tables.  
ATI Access Levels  
The 7984 Standalone Termination Unit has two access levels: Administrator and  
Operator. The access level determines what functions are accessible, as shown  
in Table 7-1.  
Table 7-1. 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  
The effective access level is the more restrictive of the session access level or  
the login access level.  
7984-A2-GB20-10  
February 1999  
7-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Security  
Access level is also used to control access via Telnet. If the Telnet Session  
Login ID with an Operator access level is not permitted access.  
Creating a Login  
Logins apply to the terminal directory connected to the communication port or  
Telnet access directly to the ATI of the 7984 Standalone Termination Unit.  
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  
Hotwire  
Model: 7984  
ADMINISTER LOGINS  
Page 1 of x  
Login ID:  
Access Level:  
newuser  
Administrator  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
ESC for previous menu  
MainMenu  
New  
Exit  
Delete  
Save  
2. Select New and press Enter. The Login Entry screen is displayed.  
main/control/admin_loginss/entry  
Hotwire  
Model: 7984  
LOGIN ENTRY  
Login ID:  
newuser2  
es342  
Password:  
Re-enter Password:  
Access Level:  
es342  
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  
MainMenu  
Exit  
February 1999  
7984-A2-GB20-10  
7-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
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 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.  
7. When all logins are entered, press Esc to return to the Administer Logins  
screen.  
8. Select Save and press Enter.  
7984-A2-GB20-10  
February 1999  
7-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Security  
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 Completeappears at the bottom  
of the screen. The number of login pages/records reflects one less record,  
and the record following the deleted record appears.  
Controlling SNMP Access  
There are three methods for limiting SNMP access.  
H
Disable the SNMP management option. Refer to Table A-8, General SNMP  
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  
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.  
February 1999  
7984-A2-GB20-10  
7-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Security  
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  
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.  
Resetting the Termination Unit’s COM Port or  
Factory Defaults  
Misconfiguring the termination unit could render the user interface inaccessible,  
leaving it in a state where a session cannot be started via the COM port or a  
Telnet session. If this occurs, the termination unit connectivity can be restored via  
a terminal directly connected to the COM port.  
Two methods can be used to restore access to the user interface:  
H
H
Reset COM Port – Allows you to reset the configuration options related to  
COM port usage. This also causes a device reset, where the termination unit  
performs a Device Self-Test. No security-related configuration options are  
changed.  
Reload Factory Defaults – Allows you to reload the Default Factory  
Configuration, resetting all of the configuration and control settings which  
causes the current configuration to be destroyed and a device reset. This  
method is also useful when the user’s password(s) have been forgotten.  
" Procedure  
To reset COM port settings:  
1. At the terminal that is directly connected to the unit’s COM port, configure the  
terminal to operate at 9.6 kbps, using character length of 8 bits, with one  
stop-bit, and no parity.  
2. Reset the unit, then immediately and repeatedly press Enter at a rate of  
about 1 press per second until the System Paused screen appears.  
3. Tab to the desired method, and enter yes (or y) for the selected prompt.  
7984-A2-GB20-10  
February 1999  
7-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Security  
If entering yes to prompt . . . Then . . .  
Reset COM Port usage  
H Port type is set to Terminal  
H Data Rate (kbps) is set to 9.6  
H Character Length is set to 8  
H Stop Bits is set to 1  
H Parity is set to None  
Reload Factory Defaults  
Yes (or y) will restore all factory-loaded  
configuration and control settings contained in the  
Default Factory Configuration area are loaded.  
If no (or n) is entered, or if no selection is made within 30 seconds, the unit  
returns to the condition or operation it was in when the system reset was  
initiated, with the COM port rate returning to its configured rate.  
The termination unit resets itself, going through a self-test. Connectivity is  
restored and the Main Menu screen appears.  
February 1999  
7984-A2-GB20-10  
7-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
IP Addressing  
8
Selecting an IP Addressing Scheme  
The NTU’s network interface IP address is assigned through the peer IP address  
of the LTU’s Network Interface menu. The NTU obtains the LTU’s IP address  
when the PPP link is established over the EOC. The LTU IP address and subnet  
mask are configured from the Communication Protocol Options menu.  
The 7984 Standalone Termination Unit is assigned an IP address through the  
Peer IP address of the M/HDSL Network interface menu. The 7984 Standalone  
Termination Unit can also be assigned an IP address and subnet mask for the  
COM port. Once an address is assigned, you can manage the 7984 Standalone  
Termination Unit’s ATI to assign an:  
H
H
Traps Options, in Appendix A, Configuration Option Tables.  
IP address for the TFTP server you wish to use to upload and download  
Configuration.  
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.  
7984-A2-GB20-10  
February 1999  
8-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
IP Addressing  
IP Addressing Example  
DSLAM  
NTU  
8784  
LTU  
8784  
MCC  
MCC  
MCC Backplane  
Address = 126.35.50.1  
Port 1  
MCC Base Subnet  
Mask = 255.255.255.0  
Peer IP Address = 126.35.50.5  
Port 2  
Peer IP Address = 126.35.10.1  
7984  
DSLAM  
MCC Backplane  
Address = 126.35.1.1  
MCC Backplane  
Mask = 255.255.0.0  
7984  
7984  
LTU IP Address = 126.35.7.1  
LTU Peer IP Address = 126.35.7.2  
NTU IP Address = 126.35.7.2  
(LTU Peer IP Address)  
98-16107a  
Peer IP Address Assignments  
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.  
February 1999  
7984-A2-GB20-10  
8-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Configuration Option Tables  
A
Overview  
The tables in this appendix summarize the configuration options accessed when  
you select the Configuration option on the Main Menu. The Configuration options  
are arranged into groups based upon functionality.  
Select . . .  
To Access the . . .  
To Configure the . . .  
Network  
T1 M/HDSL network  
interface ports.  
DSX Interface  
DSX-1 interface port.  
System  
Options  
General system options of  
the unit.  
Port  
Unit’s COM port options.  
Management  
and  
Management support of the  
unit through SNMP and  
Telnet.  
Table A-6  
Table A-7  
NOTE:  
Configuration Options in Chapter 3, Initial Startup and Configuration.  
7984-A2-GB20-10  
February 1999  
A-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
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  
Hotwire  
Model: 7984  
NETWORK INTERFACE OPTIONS  
Margin Threshold:  
–3db  
Excessive Error Rate Threshold: 1E–6  
AutoRate:  
DSL Line Rate:  
Disable  
1552 Kbps  
Peer IP Address:  
111.255.255.000 Clear  
Clear  
Circuit Identifier:  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Table A-1. Network Interface Options (1 of 2)  
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 alarm  
condition is reported.  
–5db to 10db – Sets the margin threshold to this value.  
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.  
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.  
February 1999  
7984-A2-GB20-10  
A-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
Table A-1. Network Interface Options (2 of 2)  
DSL Line Rate  
Possible Settings: 400, 528, 784, 1040, 1552  
Default Setting: 1552  
Determines the fixed line rate of the LTU, in kbps.  
H DSL Line Rate is only available when the unit is configured as an LTU, and  
AutoRate is set to Disable.  
400 to 1552 – The fixed DSL Line Rate, in kbps.  
Peer IP Address (LTU Only)  
Possible Settings: 000.000.000.001 – 223.255.255.255, Clear  
Default Setting: 000.000.000.001  
Specifies the peer IP address for the NTU, to provide remote management providing the  
remote management link on the DSL loop.  
H Peer IP Address is only available when the standalone unit is configured as an  
LTU.  
Address Field (000.000.000.001 – 223.255.255.255) – Enter an address for the peer  
unit. The range for the first byte is 000 to 223, with the exception of 127. The range for  
the remaining three bytes is 000 to 255.  
Clear – Clears the IP address field and sets to all zeros.  
Circuit Identifier  
Possible Settings: [ASCII Text], Clear  
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.  
7984-A2-GB20-10  
February 1999  
A-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Configuration Option Tables  
DSX-1 Interface Options  
For DSX-1 Interface Options, refer to Table A-2. To access the DSX-1 Interface  
Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From DSX  
main/config/DSX–1  
Slot 4  
Hotwire  
Model: 7984  
Port 3  
DSX–1 INTERFACE OPTIONS  
Port Status:  
Line Framing:  
Line Coding:  
Enable  
ESF  
B8BS  
Line Equalization:  
0 -133  
Excessive Error Rate Threshold: 1E-4  
Send (AIS) on Network Failure:  
Enable  
Send All Ones on DSX-1 Failure: Enable  
Primary Clock Source:  
DSX-1  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Table A-2. 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.  
Line Framing (LTU Only)  
Possible Settings: ESF, D4  
Default Setting: ESF  
Specifies the framing format to be used by the DSX interface.  
H Line Framing is only available when the standalone 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.  
February 1999  
7984-A2-GB20-10  
A-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
Table A-2. DSX-1 Interface Options (2 of 2)  
Line Coding Format  
Possible Settings: AMI, B8ZS  
Default Setting: B8ZS  
Specifies the line coding format to be used by the DSX interface.  
AMI – Indicates the line coding format used by the DSX interface is Alternate Mark  
Inversion (AMI).  
B8ZS – Indicates the line coding format used by the DSX interface is B8ZS.  
Line Equalization  
Possible Settings: Signaling, Data  
Default Setting: Signaling  
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.  
Send AIS on Network Failure  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Specifies the action taken on the signal transmitted to the DSX when a valid signal  
cannot be recovered from the network interface (LOS or cognitions OOF, AIS, or EER).  
Enable – An Alarm Indication Signal (AIS) is sent to the DSX-1 port in the event of an  
LOS or OOF condition on the DSX-1 interface.  
Disable – The failed signal on the interface is passed through to the DSX-1 network  
unchanged.  
Send All Ones on Network Failure  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Specifies the action taken on the signal transmitted to the DSX when a valid signal  
cannot be recovered from the network interface (LOS or cognitions OOF, AIS, or EER).  
Enable – A pattern of all ones is sent to the DSX-1 port in the event of an LOS or OOF  
condition on the DSX-1 interface.  
Disable – The failed signal on the interface is passed through to the DSX-1 network  
unchanged.  
Primary Clock Source  
Possible Settings: DSX, Internal  
Default Setting: Internal  
Specifies where the unit will derive its timing from.  
H Primary Clock Source is available only when the unit is configured as an LTU. If  
DSL Line Rate is set lower than 1552 kbps, Primary Clock Source is forced to  
DSX-1 and cannot be changed.  
Internal – The clock source is derived from the internal oscillator.  
DSX – The clock source is derived from the DSX interface.  
7984-A2-GB20-10  
February 1999  
A-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Configuration Option Tables  
System Options Menu  
For System Options, refer to Table A-3. To access the System Options screen,  
follow this menu selection sequence:  
Main Menu Configuration Load Configuration From System  
main/config/system  
Hotwire  
Model: 7984  
SYSTEM OPTIONS  
DSL Mode:  
NTU  
Test Timeout:  
Test Duration (min):  
Telco Initiated Loopback:  
Enable  
10  
Enable  
Remote Telco Line Loopback: Disable  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Table A-3. System Options (1 of 2)  
DSL Mode  
Possible Settings: LTU, NTU  
Default Setting: NTU  
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  
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) appears when Test Timeout is enabled.  
1 to 120 – Amount of time in minutes for a test runs before terminating.  
February 1999  
7984-A2-GB20-10  
A-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
Table A-3. System Options (2 of 2)  
Telco Initiated Loopback  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Determines if the unit will respond to inband loopback commands on the DSX-1  
Enable – The unit will respond to inband loopback commands.  
Disable – The unit will not respond to inband loopback commands.  
Remote Telco Loopback  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Determines if the unit will perform a Telco-initiated loopback on just the local unit or if  
page 5-9.  
Enable – The loopback will be in the remote unit.  
Disable – The loopback will be local.  
7984-A2-GB20-10  
February 1999  
A-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Configuration Option Tables  
Communication Port  
For Communication Port Options, refer to Table A-4. To access the  
Communications Ports screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Communication  
Port  
main/config/commport  
Hotwire  
Model: 7984  
COMMUNICATION PORT OPTIONS  
Port Use:  
Terminal  
Port Type:  
Asynchronous  
Data Rate (Kbps):  
Character Length:  
Parity:  
9.6  
8
None  
1
Stop Bits:  
Ignore Control Leads:  
Enable  
Login Required:  
Enable  
Port Access Level:  
Inactivity Timeout:  
Disconnect Time (Minutes):  
Administrator  
Enable  
5
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
MainMenu  
Exit  
Table A-4. Communication Port Options (1 of 3)  
Port Use  
Possible Settings: Terminal, Net Link  
Default Setting: Terminal  
Specifies how the communications port is to be used.  
Terminal – The communication port will be used for the Asynchronous terminal  
interface.  
Net Link – The communication port will be used as the network communication link to  
an IP network or device.  
Port Type  
Possible Settings: Asynchronous, Synchronous  
Default Setting: Asynchronous  
When Port Use is set to Net Link, Port Type controls whether the communication port  
will be asynchronous or synchronous.  
Asynchronous – Configures the communication port for asynchronous communication.  
Synchronous – Configures the communication port for synchronous communication.  
February 1999  
7984-A2-GB20-10  
A-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
Table A-4. Communication Port Options (2 of 3)  
Data Rate  
Possible Settings: 9.6, 14.4, 19.2, 28.8, 38.4  
Default Setting: 9.6  
Specifies the communication port baud rate.  
9.6 – Communication port rate is 9600 bps.  
14.4 – Communication port rate is 14400 bps.  
19.2 – Communication port rate is 19200 bps.  
28.8 – Communication port rate is 28800 bps.  
38.4 – Communication port rate is 38400 bps.  
Character Length (Terminal Use Only)  
Possible Settings: 7, 8  
Default Setting: 8  
Determines the character length of the communication port.  
7 – The character length of the communication port is seven bits.  
8 – The character length of the communication port is eight bits.  
Parity (Terminal Use Only)  
Possible Settings: None, Odd, Even  
Default Setting: None  
Specifies the parity of the communication port.  
None – No parity used.  
Odd – Odd parity used.  
Even – Even parity used.  
Stop Bits (Terminal Use Only)  
Possible Settings: 1, 1.5, 2  
Default Setting: 1  
Specifies the number of stop bits for the communication port.  
1 – One stop bit.  
1.5 – One and one half stop bits.  
2 – Two stop bits used.  
Ignore Control Leads (Terminal Use Only)  
Possible Settings: Disable, DTR  
Default Setting: Disable  
Specifies whether DTR is used.  
Disable – Control leads are treated as standard.  
DTR – DTR is ignored.  
7984-A2-GB20-10  
February 1999  
A-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Configuration Option Tables  
Table A-4. Communication Port Options (3 of 3)  
Login Required (Terminal Use Only)  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Specifies if an ID and password are required to access the asynchronous terminal  
interface on the communication port. Login IDs are created with a password and access  
Enable – Login ID and password are required to access the asynchronous terminal  
interface.  
Disable – No Login ID and password are required to access the asynchronous terminal  
interface.  
Port Access Level (Terminal Use Only)  
Possible Settings: Administrator, Operator  
Default Setting: Administrator  
Specifies the highest level of access allowed when accessing an ATI session through a  
Telnet session.  
Administrator – This is the higher access level, permitting full control of the  
7984 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 (Terminal Use Only)  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Provides automatic logoff of a Telnet session.  
Enable – The terminal session terminates automatically after the Disconnect Time.  
Disable – A terminal session will not be closed due to inactivity.  
Disconnect Time (Minutes) (Terminal Use Only)  
Possible Settings: 1 – 60  
Default Setting: 5  
Number of minutes of inactivity before the session terminates automatically. Timeout is  
based on no keyboard activity.  
H Disconnect Time (minutes) appears when Inactivity Timeout is enabled.  
1 to 60 – The Telnet session is closed after the selected number of minutes.  
February 1999  
7984-A2-GB20-10  
A-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Configuration Option Tables  
Management and Communication Options Menu  
The Management and Communication Options Menu includes the following:  
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 Session Options  
screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From →  
Management and Communication Telnet Session  
main/config/telnet  
Hotwire  
Model: 7984  
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  
7984-A2-GB20-10  
February 1999  
A-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
Table A-5. Telnet Session Options  
Telnet Session  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Specifies if the Termination 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  
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 7, Security for more information.  
Administrator – This is the higher access level, permitting full control of the  
7984 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.  
Enable – The Telnet session terminates automatically after the Disconnect Time. Set  
the Disconnect time (in minutes) after enabling Inactivity Timeout.  
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 user inactivity before a Telnet session terminates automatically.  
Time out is based on no keyboard activity.  
H Disconnect Time (minutes) appears only when the Inactivity Timeout option is  
enabled.  
1 to 60 – The Telnet session is closed after the selected number of minutes.  
February 1999  
7984-A2-GB20-10  
A-12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Configuration Option Tables  
Communication Protocol Options  
The communication protocol configuration options specify the information  
necessary to support the IP communication network, including IP address and  
link protocols. Initial values are determined by the configuration you currently  
have loaded. To access the Communication Protocol Options screen, follow this  
menu selection sequence:  
Main Menu Configuration Load Configuration From →  
Management and Communication Comm Protocol Options  
main/config/management/communication  
Hotwire  
Model: 7984  
COMMUNICATION PROTOCOL OPTIONS  
Node IP Address:  
Node Subnet Mask:  
000.000.000.000  
000.000.000.000  
Clear  
Clear  
Default Network Destination:  
None  
Communication Port  
IP Address:  
Subnet Mask:  
000.000.000.000  
000.000.000.000  
PPP  
Clear  
Clear  
Link Protocol:  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
MainMenu  
Exit  
7984-A2-GB20-10  
February 1999  
A-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Configuration Option Tables  
Table A-6. Communication Protocol Options (1 of 2)  
Node IP Address  
Possible Settings: 000.000.000.000 223.255.255.255  
Default Setting: 000.000.000.000  
Specifies the Node IP address.  
H Node IP Address is only available when the standalone unit is configured as an  
LTU.  
Address Field (000.000.000.000 223.255.255.255) – Enter an IP address for the  
node. The range for the first byte is 000 to 223, with the exception of 127. The range for  
the remaining three bytes is 000 to 255.  
Clear – Clears the IP address field and sets to all zeros.  
Node Subnet Mask  
Possible Settings: 000.000.000.000 255.255.255.255  
Default Setting: 000.000.000.000  
Specifies the Node Subnet Mask.  
H Node Subnet Mask is only available when the standalone unit is configured as an  
LTU.  
Address Field (000.000.000.000 255.255.255.255) – Enter an address for the  
Node Subnet Mask.  
Clear – Clears the address field and sets to all zeros.  
Default Network Destination  
Possible Settings: None, COM, DSL  
Default Setting: None  
Specifies where the default management network is connected. For example, if your  
default network is connected to the COM port, select COM as the default management  
network destination.  
None – No default destination is defined. Data that cannot be routed is discarded.  
COM – The unit’s COM port is the default network destination.  
H COM is only available when the Port Use option on the Communication Port  
Options menu is set to Net Link.  
DSL – The unit’s DSL port is the default network destination.  
Communication Port IP Address  
Possible Settings: 000.000.000.000 223.255.255.255  
Default Setting: 000.000.000.000  
Specifies the unit’s Communication Port IP Address when the unit is configured as a  
network communication link.  
H Communication Port IP Address is only used when the Port Use option on the  
Communication Port Options menu is set to Net Link. If the COM Port IP address  
is not set (000.000.000.000) the node IP address specified by the Node IP Port  
will be used.  
Address Field (000.000.000.000 223.255.255.255) – Enter an IP address for the  
Communication Port. The range for the first byte is 000 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.  
February 1999  
7984-A2-GB20-10  
A-14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Configuration Option Tables  
Table A-6. Communication Protocol Options (2 of 2)  
Communication Port Subnet Mask  
Possible Settings: 000.000.000.000 255.255.255.255  
Default Setting: 000.000.000.000  
Specifies the unit’s Communication Port Subnet Mask when the unit is configured as a  
network communication link.  
H Communication Port Subnet Mask is only used when the Port Use option on the  
Communication Port Options menu is set to Net Link. If the COM Port IP address  
is not set (000.000.000.000), the node IP Address will be used.  
Address Field (000.000.000.000 255.255.255.255) – Enter an address for the  
Communication Port Subnet Mask.  
Clear – Clears the address and sets to all zeros.  
Communication Port Link Protocol  
Possible Settings: PPP, SLIP  
Default Setting: PPP  
Specifies the unit’s Communication Port link layer protocol when the unit is configured  
as a network communication link.  
H Communication Port Link Protocol is only used when the Port Use option on the  
Communication Port Options menu is set to Net Link.  
PPP – Defines Point-to-Point protocol for the link layer protocol for the network  
communication link.  
SLIP – Serial Line IP Protocol for the link layer protocol for the network communication  
link.  
7984-A2-GB20-10  
February 1999  
A-15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Configuration Option Tables  
General SNMP Management Options  
SNMP configuration options allow you to specify the information necessary to  
support the Termination Unit General SNMP functionality. To access the General  
SNMP Management Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
Management and Communication SNMP General SNMP Management  
main/config/management/SNMP  
Slot: 4  
Hotwire  
Model: 7984  
GENERAL SNMP MANAGEMENT OPTIONS  
SNMP Management:  
Enable  
Community Name 1:  
Name 1 Access:  
Community Name 2:  
Name 2 Access:  
Public  
Read/Write  
Public  
Read/Write  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Table A-7. General SNMP Management Options (1 of 2)  
SNMP Management  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Enables or disables the SNMP management features.  
Enable – Enables SNMP management capabilities.  
Disable – Disables SNMP management capabilities.  
Community Name 1  
Possible Settings: ASCII text field, Public  
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.  
Text Field – Enter or edit a community name.  
Clear – Clears the community name field.  
February 1999  
7984-A2-GB20-10  
A-16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
Table A-7. General SNMP Management Options (2 of 2)  
Name 1 Access  
Possible Settings: Read, Read/Write  
Default Setting: Read  
Determines the access level for Community Name 1.  
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, Public  
Default Text: Public  
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.  
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.  
Read – Allows read-only access (get) for Community Name 2.  
Read/Write – Allows read/write access (get/set) for Community Name 2.  
7984-A2-GB20-10  
February 1999  
A-17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Configuration Option Tables  
SNMP NMS Security Options  
SNMP configuration options allow you to specify the information necessary to  
support the Termination Unit SNMP NMS Security. To access the SNMP NMS  
Security Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
Management and Communication SNMP Security  
main/config/management/security  
Slot: 4  
Hotwire  
Model: 7984  
SNMP NMS SECURITY OPTIONS  
NMS IP Validation:  
Enable  
Number of Managers: 2  
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  
Table A-8. SNMP NMS Security Options (1 of 2)  
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  
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.  
February 1999  
7984-A2-GB20-10  
A-18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Configuration Option Tables  
Table A-8. SNMP NMS Security Options (2 of 2)  
NMS n IP Address  
Possible Settings: 000.000.000.000 – 223.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the Internet Protocol address used to identify each SNMP manager.  
000.000.000.000 – 223.255.255.255 – Enter an address for each SNMP manager. The  
range for the first byte is 000 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 Level  
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.  
7984-A2-GB20-10  
February 1999  
A-19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Configuration Option Tables  
SNMP Traps Options  
SNMP configuration options allow you to specify the information necessary to  
support the 7984 termination unit SNMP traps. To access the SNMP Traps  
Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From →  
Management and Communication SNMP Traps  
main/config/management/trap  
Hotwire  
Model: 7984  
SNMP TRAPS OPTIONS  
Enable Number of Trap Managers: 5  
SNMP Traps:  
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  
Destination: IMC  
Destination: IMC  
Destination: IMC  
Destination: IMC  
Destination: IMC  
General Traps:  
Both  
Enterprise Specific Traps: Enable  
Link Traps:  
Both  
Link Traps Interfaces:  
Network  
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Table A-9. SNMP Traps Options (1 of 3)  
SNMP Traps  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Controls the generation of SNMP trap messages. The options for addresses and types  
of traps are located in this table.  
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  
Default Setting: 1  
Sets the number of SNMP management systems that will receive SNMP traps.  
1 to 5 – Number of trap managers. An NMS IP address is required for each manager.  
February 1999  
7984-A2-GB20-10  
A-20  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Configuration Option Tables  
Table A-9. SNMP Traps Options (2 of 3)  
NMS n IP Address  
Possible Settings: 000.000.000.000 – 223.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the Internet Protocol address used to identify each SNMP trap manager.  
Address Field (000.000.000.000 – 223.255.255.255) – Enter an address for each  
SNMP trap manager. The range for the first byte is 000 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: DSL, COM  
Default Setting: DSL  
Provides the network destination path of each trap manager.  
DSL – The DSL port is the network destination path.  
COM – The COM port is the network destination path.  
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.  
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.  
for SNMP Traps.  
Disable – No enterprise-specific event traps are sent.  
7984-A2-GB20-10  
February 1999  
A-21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Configuration Option Tables  
Table A-9. SNMP Traps Options (3 of 3)  
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 7984 Termination Unit recognizes that one of  
the communication interfaces is operational.  
Down – A linkDown trap is generated when the 7984 Termination 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  
Link Trap Interfaces  
Possible Settings: Network, DSX, All  
Default Setting: All  
Determines if the SNMP linkUp, SNMP linkDown, and interface-related  
enterpriseSpecific traps are generated for the network interface, DSX port, or both.  
Network – SNMP trap messages are generated for the network interface.  
DSX – SNMP trap messages are generated for the DSX port.  
All – SNMP trap messages are generated for the network T1 interface, COM port and  
the DSX ports.  
February 1999  
7984-A2-GB20-10  
A-22  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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
warmStart  
authenticationFailure  
linkUp  
linkDown  
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.  
There are 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.  
There are no  
variable-bindings.  
7984-A2-GB20-10  
February 1999  
B-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
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 values of ifIndex are the same for all models, although not all indexes are  
supported for each model.  
The ifIndex included with the trap consists of:  
– 1 COM Port  
– 2 HDSL Network Interface, Port 1  
– 6 DSX-1 Interface, Port 1  
H ifAdminStatus (RFC 1573)  
This object specifies the operational state of the interface:  
– up(1)  
HDSL Network: DSL link is established.  
DSX-1: No alarm condition exists.  
– down(2)  
HDSL Network: DSL link is not established.  
DSX-1: An alarm condition exists.  
– testing(3)  
A test is active on the interface.  
H ifOperStatus (RFC 1573)  
This object contains the same value as ifAdminStatus.  
H ifType (RFC 1573)  
This object is the type of interface:  
– T1(19)  
Used for the DSX-1 interface.  
February 1999  
7984-A2-GB20-10  
B-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Standards Compliance for SNMP Traps  
Enterprise-Specific Traps  
EnterpriseSpecific traps 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  
enterprisePrimary  
ClockFail(1)  
A failure of the currently  
configured primary clock  
source for the unit has  
been detected.  
The configured clock source  
is no longer operational. If  
the configured clock source  
is the internal clock, the  
possible cause may be due  
to a failure of one or more of  
the unit’s hardware  
components.  
enterprisePrimary  
Clock failure has cleared.  
N/A  
ClockFailClear(101)  
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.  
enterpriseDeviceFail(3)  
enterpriseTestStart(5)  
An internal device failure.  
Operating software has  
detected an internal device  
failure.  
A test is running.  
At least one test has been  
started on an interface.  
enterpriseConfig  
Change(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.  
enterpriseTestStop(105)  
All tests have been halted.  
All tests have been halted on  
an interface.  
There are no variable-bindings for enterpriseDeviceFail, enterprisePrimary  
ClockFail, enterpriseSecondaryClockFail, enterprisePrimaryClockFailClear,  
enterpriseSecondaryClockFailClear, and enterpriseConfigChange. The  
variable-binding for enterpriseSelfTestFail is devSelfTestResults.  
7984-A2-GB20-10  
February 1999  
B-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Standards Compliance for SNMP Traps  
The tests that affect the enterpriseTestStart, enterpriseTestStop, and the  
variable-bindings are different for each particular interface. Diagnostic tests are  
only supported on the physical T1 network and user data port interfaces. 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  
– Payload Loopback  
– Repeater Loopback  
– Remote Line Loopback  
– Send and Monitor 511  
H ifTestType (RFC 1573)  
The following objects control tests  
in SNMP-managed devices:  
– noTest – Stops the test in  
progress.  
H enterpriseTest Stop – No tests  
currently running on the  
interface.  
– testLoopLLB – Initiates a Local  
Loopback.  
– testLoopPLB – Initiates a  
Payload Loopback.  
– testLoopRLB – Initiates a  
Remote Loopback.  
– testSendMon511 – Initiates a  
Send and Monitor 511 test.  
– testSendLLBUp – Initiates an  
LLB Up message to the remote  
unit.  
– testSendLLBDown – Initiates an  
LLB Down message to the  
remote unit.  
DSX  
H ifIndex (RFC 1573)  
H ifAdminStatus (RFC 1573)  
H ifOperStatus (RFC 1573)  
H ifTestType (RFC 1573)  
The following objects control tests  
in SNMP-managed devices:  
– noTest – Stops the test in  
progress.  
– testLoopExternalDTE  
February 1999  
7984-A2-GB20-10  
B-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Cables and Pin Assignments  
C
Overview  
The following sections provide pin assignments:  
7984-A2-GB20-10  
February 1999  
C-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Cables and Pin Assignments  
T1 Network Interface  
The T1 network interface is an RJ48C, 8-position, unkeyed modular connector for  
a 100-ohm balanced interface (Table C-1, Figure C-1).  
Table C-1. T1 100-Ohm Balanced Interface  
Connector  
Signal  
Pin Number  
Receive Ring (Data out from 7974)  
Receive Tip (Data out from 7974)  
Receive Shield  
1
2
7
4
5
8
Transmit Ring (Data in from 7974)  
Transmit Tip (Data in from 7974)  
Transmit Shield  
8-Position  
Modular  
Plug Unkeyed  
DB15  
Socket  
Twisted Pair  
Receive Ring  
Receive Tip  
1
2
7
4
5
8
3
6
11 Receive Ring  
3
2
9
1
4
Receive Tip  
Shield Ground  
Transmit Ring  
Transmit Tip  
Shield Ground  
Transmit Ring  
Transmit Tip  
Shield Ground  
Twisted Pair  
Shield Ground  
No Connection  
No Connection  
98-16139  
Figure C-1. T1 Network Interface Adapter Cable (Feature Number 3100-F1-517)  
February 1999  
7984-A2-GB20-10  
C-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Cables and Pin Assignments  
DSL Network Interface Cable  
The DSL line interface cable is a 20-foot, 24 AWG solid, 2-twisted-pair cable that  
is RJ48C-to-RJ48C (Table C-2, Figure C-2).  
Table C-2. DSL Network Interface Connector  
Signal  
Ring  
Tip  
Pin Number  
1
2
4
5
8-Pin  
Plug  
Ring  
Tip  
Pin #8  
Pin #1  
97-15884  
RJ48C  
Plug  
RJ48C  
Plug  
Blue  
Blue  
Twisted Pair  
Twisted Pair  
Ring  
1
2
3
4
5
6
7
8
1
2
3
White  
White  
Tip  
Orange  
White  
Orange  
White  
Ring  
Tip  
4
5
6
7
8
98-15954a  
Figure C-2. DSL Network Interface Cable with RJ48C Connector  
(Feature Number 7900-F1-514)  
7984-A2-GB20-10  
February 1999  
C-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Cables and Pin Assignments  
COM Port Interface Cable  
The COM port connects to either a PC or to an ASCII terminal or printer for  
alarms. The COM port-to-PC cable is a 14-foot, 26 AWG, 8-conductor cable with  
an 8-position modular plug keyed connector and a DB9 socket connector  
(Figure C-3). The COM port connector is an 8-position keyed modular jack  
98-15886  
Figure C-3. COM Port-to-PC Cable (Feature Number 7900-F1-507)  
February 1999  
7984-A2-GB20-10  
C-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Cables and Pin Assignments  
Table C-3. COM Port Connector (J6)  
Signal  
Direction  
Pin Number  
Reserved for future use  
DCE Received Data  
Signal Ground  
to DTE (Out)  
to DTE (Out)  
1
2
3
4
5
6
7
8
DCE Transmit Data  
DCE Data Terminal Ready  
DCE Carrier Detect  
DCE Request-to-Send  
Reserved for future use  
from DTE (IN)  
from DTE (IN)  
to DTE Out)  
from DTE (IN)  
to DTE (Out)  
7984-A2-GB20-10  
February 1999  
C-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Cables and Pin Assignments  
Power Input Connector  
The required input power connector leads are shown in Table C-4.  
Table C-4. DC Power Connector  
Signal  
Pin Number  
+24 Vdc  
5
4
3
+24 Vdc Return  
Chassis Ground  
Optional Power Cable  
The optional power cable is a 14.5-foot, 18 AWG stranded cable. The connector  
is terminated at one end with a 6-position Molex 39-01-2060 connector. The other  
end of the cable is terminated with a bare wire that should be connected to a DC  
power source. Figure C-4 shows the wire colors.  
Black  
1
2
3
4
5
6
X
Red  
Green  
White  
Orange  
Blue  
X
Earth Ground  
RTN  
+24 Vdc  
X
98-14158-01  
Figure C-4. DC Power Cable (Feature Number 7900-F1-506)  
February 1999  
7984-A2-GB20-10  
C-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Technical Specifications  
D
Specifications  
Criteria*  
Size  
Width 7.25 inches (18.4 cm)  
Height 1.5 inches (3.8 cm)  
Length 9.4 inch (24.9 cm)  
Approximately 1.25 lbs. (0.6 kg)  
Weight  
Approvals  
Safety Certifications  
Refer to the equipment’s label for approvals on product.  
Power  
The 7984 Termination Unit contains a DC-to-DC  
converter that requires +24V power input. The +24V  
power is distributed through a universal power supply  
supplied with the unit.  
Maximum Power Dissipation = 6 watts  
Feature Number Description  
Cables and Cable Guide  
7900-F1-506  
7900-F1-507  
7900-F1-514  
Optional Power Cable  
COM Port Interface Cable  
DSL Network Interface Cable  
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)  
* Technical specifications are subject to change without notice.  
7984-A2-GB20-10  
February 1999  
D-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Technical Specifications  
February 1999  
7984-A2-GB20-10  
D-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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.  
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.  
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.  
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  
DSL  
Data Channel LoopBack. Loops the data received from the network interface, for all DS0  
channels allocated to the selected port, back to the network.  
Digital Subscriber Line. The non-loaded, local-loop copper connection between the  
customer and the first node within the network.  
7984-A2-GB20-10  
February 1999  
GL-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Glossary  
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.  
DTE  
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  
EOC  
ES  
Excessive Error Rate. An error rate that is greater than the threshold that has been  
configured in the device.  
Embedded Operations Channel. An in-band channel between DSL devices, used for  
8 kbps management data.  
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  
European Telecommunications Standardization Institute. An organization that produces  
technical standards in the area of telecommunications.  
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.  
FEBE  
Far-End Block Error. Block errors reported by remote equipment.  
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.  
February 1999  
7984-A2-GB20-10  
GL-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Glossary  
HDSL  
High-bit-rate Digital Subscriber Line. A technique for high bandwidth, bidirectional  
transmission over copper wire for T1 and E1 services.  
IP  
Internet Protocol. An open networking protocol used for internet packet delivery.  
Internet Protocol address. The address assigned to an internet host.  
IP address  
LAN  
Local Area Network. A privately owned and administered data communications network  
limited to a small geographic area.  
LED  
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.  
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  
MTSO  
MIB Release 2. The current Internet-standard MIB, defined by RFC 1213.  
Multirate Symmetric Digital Subscriber Line. (See SDSL.)  
Mobile Telephone Switching Office. A generic name for the main cellular switching center  
which supports multiple base stations.  
NMS  
NTU  
Network Management System. A computer system used for monitoring and controlling  
network devices.  
Network Termination Unit. The unit on the customer premises end of a link. (The LTU is on  
the network end.)  
OOF  
reset  
RLB  
Out Of Frame. An error condition in which frame synchronization bits are in error.  
A reinitialization of the device that occurs at power-up or in response to a reset command.  
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  
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.  
7984-A2-GB20-10  
February 1999  
GL-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Glossary  
SES  
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  
Simple Network Management Protocol. Protocol for open networking management.  
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.  
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.  
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.  
UNIX  
WAN  
An operating system developed at AT&T Bell Laboratories and since used as the basis of  
similar operating systems.  
Wide Area Network. A network that spans a large geographic area.  
February 1999  
7984-A2-GB20-10  
GL-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
COM port  
A
Abort All Tests, 5-1  
ac transformer, connecting, 3-2  
access  
access level  
community names, for SNMP, 7-4  
configuration  
functions available for, 7-1  
AIS (Alarm Indication Signal)  
ATI (Asynchronous Terminal Interface)  
AutoRate  
overview, 3-1  
connecting  
connectors  
Card Failed  
Circuit Identifier, A-3  
7984-A2-GB20-10  
February 1999  
IN-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Index  
D
G
H
Disconnect Time  
I
identity, 3-4  
inactivity timeout  
IP address  
DSL peer, A-3  
SNMP manager, 7-5  
K
E
L
Login ID  
F
firmware  
download from server, 3-16  
February 1999  
7984-A2-GB20-10  
IN-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
M
P
management port  
PC  
messages  
power supply  
ac transformer, 3-2  
N
R
network  
resetting  
NMS  
SNMP connectivity, 8-1  
S
O
overview  
security, 7-1  
user’s guide, v  
Send and Monitor 511, 5-7  
7984-A2-GB20-10  
February 1999  
IN-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
SNMP  
test  
support overview, 1-5  
Send and Monitor 511, 5-7  
switch setting for Telco loopback, 3-10  
switch setting for Telco remote loopback, 3-10  
start-up, ATI, 2-1  
switchpacks  
timeout  
Com port session inactivity, A-10  
Telnet session inactivity, A-12  
T
traps, SNMP, 6-2, B-1  
Telco-initiated  
Telnet session  
U
terminal  
V
W
February 1999  
7984-A2-GB20-10  
IN-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  

MTD Log Splitter 24640 7 User Manual
NEC Computer Monitor 42PD2 50PD1 User Manual
Nikon Camcorder L105 User Manual
Nilfisk ALTO Carpet Cleaner AX 310 User Manual
Nokia Bluetooth Headset BH 700 User Manual
Nokia Cell Phone 252 User Manual
Olympus Carrying Case E03 User Manual
Oster Toaster Toaster Oven User Manual
Palsonic CRT Television 5130G User Manual
ParaBody Home Gym 822104 User Manual