ADTRAN Network Card TSU 120 User Manual

TSU 120 & 120e  
User Manual  
Part Number  
1202129L1  
1202129L2  
January 1999  
61202129L1-1C  
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ADTRAN Year 2000 (Y2K) Readiness Disclosure  
ADTRAN has established a Year 2000 program to ensure that our products  
will correctly function in the new millennium. ADTRAN warrants that all  
products meet Y2K specifications regardless of model or revision.  
Information about ADTRAN’s Y2K compliance program is available at the  
following locations:  
ADTRAN Web Site  
Product Matrix  
www.adtran.com  
www.adtran.com/y2kfax.html  
Faxback Document Line (256) 963-8200  
Y2K plans and product certifications are listed in  
the matrix.  
Y2K Project Line  
E-mail  
(256) 963-2200  
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Notes provide additional useful information.  
Cautions signify information that could prevent service interrup-  
tion.  
Warnings provide information that could prevent damage to the  
equipment or endangerment to human life.  
iv  
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FCC Regulations Require that the Following Information be  
Provided to the Customer  
1. This equipment complies with Part 68 of the FCC rules. The required label  
is attached to the bottom of the chassis.  
2. An FCC compliant telephone cord and modular plug is provided with this  
equipment. This equipment is designed to be connected to the telephone  
network or premises wiring using a compatible modular jack which is Part  
68 compliant. See installation instructions for details.  
3. If your TSU 120 causes harm to the telephone network, the Telephone Com-  
pany may discontinue your service temporarily. If possible, they will  
notify you in advance. If advance notice is not practical, you will be noti-  
fied as soon as possible. You will be advised of your right to file a com-  
plaint with the FCC.  
4. Your telephone company may make changes in its facilities, equipment,  
operations, or procedures that could affect the proper operation of your  
equipment. If they do, you will be given advance notice so as to give you  
an opportunity to maintain uninterrupted service.  
5. If you experience trouble with the equipment TSU 120, please contact  
ADTRAN at (256) 963-8000 for repair/warranty information. The tele-  
phone company may ask you to disconnect this equipment from the net-  
work until the problem has been corrected, or until you are sure the  
equipment is not malfunctioning.  
6. This unit contains no user serviceable parts.  
7. The following information may be required when applying to your local  
telephone company for leased line facilities.  
Service Type  
1.544 Mbps -SF  
REN/SOC  
FIC  
USOC  
6.0N  
6.0N  
6.0N  
6.0N  
04DU9-BN RJ-48C  
04DU9-DN RJ-48C  
04DU9-1KN RJ-48C  
04DU9-1SN RJ-48C  
1.544 Mbps - SF and B8ZS  
1.544 Mbps - ESF  
1.544 Mbps - ESF and B8ZS  
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Federal Communications Commission Radio Frequency  
Interference Statement  
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 lim-  
its are designed to provide reasonable protection against harmful inter-  
ference 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 frequencies. 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.  
Shielded cables must be used with this unit to ensure compliance with  
Class A FCC limits.  
Changes or modifications to this unit not expressly approved by the  
party responsible for compliance could void the user’s authority to op-  
erate the equipment.  
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CANADIAN EMISSIONS REQUIREMENTS  
This digital apparatus does not exceed the Class A limits for radio noise  
emissions from digital apparatus as set out in the interference-causing  
equipment standard entitled “Digital Apparatus,” ICES-003 of the De-  
partment of Communications.  
Cet appareil nuerique respecte les limites de bruits radioelectriques ap-  
plicables aux appareils numeriques de Class A prescrites dans la norme  
sur le materiel brouilleur: “Appareils Numeriques,” NMB-003 edictee  
par le ministre des Communications.  
vii  
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CANADIAN EQUIPMENT LIMITATIONS  
The Industry Canada Certification label identifies certified equipment.  
This certification means that the equipment meets certain telecommu-  
nications network protective, operational, and safety requirements.  
The Department does not guarantee the equipment will operate to the  
user's satisfaction.  
Before installing this equipment, users should ensure that it is permissi-  
ble to be connected to the facilities of the local telecommunications com-  
pany. The equipment must also be installed using an acceptable method  
of connection. In some cases, the company's inside wiring associated  
with a single line individual service may be extended by means of a cer-  
tified connector assembly (telephone extension cord). The customer  
should be aware that compliance with the above conditions may not  
prevent degradation of service in some situations.  
Repairs to certified equipment should be made by an authorized Cana-  
dian maintenance facility designated by the supplier. Any repairs or al-  
terations made by the user to this equipment, or equipment  
malfunctions, may give the telecommunications company cause to re-  
quest the user to disconnect the equipment.  
Users should ensure for their own protection that the electrical ground  
connections of the power utility, telephone lines and internal metallic  
waterpipe system, if present, are connected together. This precaution  
may be particularly important in rural areas.  
Users should not attempt to make such connections themselves, but  
should contact the appropriate electric inspection authority, or an elec-  
trician, as appropriate.  
The Load Number (LN) assigned to each terminal device denotes the  
percentage of the total load to be connected to a telephone loop which is  
used by the device, to prevent overloading. The termination on a loop  
may consist of any combination of devices subject only to the equipment  
that the total of the LNs of all devices does not exceed 100.  
The ringer equivalence number (REN) assigned to each terminal adapter  
is used to determine the total number of devices that may be connected  
to each circuit. The sum of the RENs from all devices in the circuit  
should not exceed a total of 5.0.  
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Affidavit Requirements for Connection To Digital Services  
• An affidavit is required to be given to the telephone company when-  
ever digital terminal equipment without encoded analog content and  
billing protection is used to transmit digital signals containing encod-  
ed analog content which are intended for eventual conversion into  
voiceband analog signals and transmitted on the network.  
• The affidavit shall affirm that either no encoded analog content or  
billing information is being transmitted or that the output of the de-  
vice meets Part 68 encoded analog content or billing protection spec-  
ifications.  
• End user/customer will be responsible to file an affidavit with the lo-  
cal exchange carrier when connecting unprotected CPE to a 1.544  
Mbps or subrate digital services.  
• Until such time as subrate digital terminal equipment is registered  
for voice applications, the affidavit requirement for subrate services  
is waived.  
ix  
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Affidavit For Connection Of Customer Premises Equipment To 1.544 Mbps  
And/or Subrate Digital Services  
For the work to be performed in the certified territory of  
_______________________________________(telco name)  
State of ___________________________________________  
County of ________________________________  
I, ___________________________________ (name),  
(business address), ______________________ (telephone number) being  
duly sworn, state:  
I have responsibility for the operation and maintenance of the terminal  
equipment to be connected to 1.544 Mbps and/or ________ subrate dig-  
ital services. The terminal equipment to be connected complies with  
Part 68 of the FCC rules except for the encoded analog content and bill-  
ing protection specifications. With respect to encoded analog content  
and billing protection:  
( ) I attest that all operations associated with the establishment, main-  
tenance, and adjustment of the digital CPE with respect to analog con-  
tent and encoded billing protection information continuously complies  
with Part 68 of the FCC Rules and Regulations.  
( ) The digital CPE does not transmit digital signals containing encoded  
analog content or billing information which is intended to be decoded  
within the telecommunications network.  
( ) The encoded analog content and billing protection is factory set and  
is not under the control of the customer.  
I attest that the operator(s)/maintainer(s) of the digital CPE responsible  
for the establishment, maintenance, and adjustment of the encoded an-  
alog content and billing information has (have) been trained to perform  
these functions by successfully having completed one of the following  
(check appropriate blocks):  
x
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( ) A. A training course provided by the manufacturer/grantee of the  
equipment used to encode analog signals; or  
( ) B. A training course provided by the customer or authorized repre-  
sentative, using training materials and instructions provided by the  
manufacturer/grantee of the equipment used to encode analog signals;  
or  
( ) C. An independent training course (e.g., trade school or technical  
institution) recognized by the manufacturer/grantee of the equipment  
used to encode analog signals; or  
( ) D. In lieu of the preceding training requirements, the operator(s)/  
maintainer(s) is (are) under the control of a supervisor trained in accor-  
dance with _________ (circle one) above.  
I agree to provide _________________ (telco's name) with proper docu-  
mentation to demonstrate compliance with the information as provided  
in the preceding paragraph, if so requested.  
_________________________________Signature  
_________________________________Title  
_________________________________ Date  
Transcribed and sworn to before me  
This ________________________________________ (month/day/year)  
_________________________________  
Notary Public  
My commission expires:  
_________________________________  
xi  
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IMPORTANT SAFETY INSTRUCTIONS  
When using your telephone equipment, please follow these basic safety  
precautions to reduce the risk of fire, electrical shock, or personal injury:  
1.  
Do not use this product near water, such as near a bath tub, wash  
bowl, kitchen sink, laundry tub, in a wet basement, or near a  
swimming pool.  
2.  
3.  
4.  
Avoid using a telephone (other than a cordless-type) during an  
electrical storm. There is a remote risk of shock from lightning.  
Do not use the telephone to report a gas leak in the vicinity of the  
leak.  
Use only the power cord, power supply, and/or batteries indi-  
cated in the manual. Do not dispose of batteries in a fire. They  
may explode. Check with local codes for special disposal instruc-  
tions.  
SAVE THESE INSTRUCTIONS  
xii  
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WARRANTY AND CUSTOMER SERVICE  
ADTRAN will replace or repair this product within five years from the date  
of shipment if the product does not meet its published specifications or if it  
fails while in service. For detailed warranty, repair, and return information,  
see the ADTRAN Equipment Warranty and Repair and Return Policy Proce-  
dure.  
Return Material Authorization (RMA) is required prior to returning equip-  
ment to ADTRAN.  
For Service, RMA requests, or more information, contact one of the numbers  
found at the inside back page of this manual.  
xiii  
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Chapter 1  
Introduction .................................................................................... 1-1  
Chapter 2  
Self-Test .............................................................................................................. 2-7  
Initialization ....................................................................................................... 2-7  
Set User Passcode ....................................................................................... 2-7  
Set Unit Identification ............................................................................... 2-7  
Set Chain Port Input .................................................................................. 2-8  
Chain-In (PC) ............................................................................... 2-8  
Chain-in/Chain Out .................................................................... 2-8  
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Table of Contents  
Chapter 3  
Alternate Methods of Control ........................................................................3-10  
Chapter 4  
0.1 Nx56/64 Menu Items ...........................................................................4-5  
DTE Data/Clock ..........................................................................4-5  
DTE Status ....................................................................................4-5  
Port Rate ........................................................................................4-5  
DBU Data/CNTRL (TSU 120e only) .........................................4-5  
DBU Contrl (TSU 120e only) ......................................................4-6  
DBU Status (TSU 120e only) .......................................................4-6  
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Chapter 5  
DS0 Map A and DS0 Map B ........................................................................... 5-15  
Chapter 6  
No Passcode Desired ................................................................................. 6-4  
Unit ID ................................................................................................................ 6-4  
Set the Unit Identification ......................................................................... 6-5  
No Unit ID Desired .................................................................................... 6-5  
Software Revision (Software Rev) .................................................................. 6-5  
Port Utility (Option Ports) ............................................................................... 6-5  
ENET Address (TSU 120e only) ...................................................................... 6-5  
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Table of Contents  
Chapter 7  
DBU Loopback (TSU 120e only) ..............................................7-10  
Chapter 8  
Map Configuration ......................................................................8-3  
Initializing the Temp Map ..........................................................8-3  
Editing the Temp Map ................................................................8-4  
Applying the Temp Map ............................................................8-4  
Reviewing Maps ..........................................................................8-4  
Remote Menu Access ........................................................................................8-5  
Management Configuration .............................................................................8-5  
xviii  
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Poll Link Status Traps Sent ........................................................ 8-9  
Telnet/Terminal Timeout .......................................................... 8-9  
Exit ................................................................................................. 8-9  
Quit Session ...................................................................................................... 8-10  
Appendix A. Understanding SNMP ..................................................................A-1  
Appendix B. Understanding TR-08 ................................................................... B-1  
Appendix C. Network Pinouts ........................................................................... C-1  
Appendix D. System Messages ...........................................................................D-1  
Appendix E. Specifications ..................................................................................E-1  
Index ................................................................................................................. Index-1  
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Table of Contents  
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Figure 5-9. Create Temp Selection Screen ........................................................ 5-17  
Figure 6-1. Complete Utility Menu Tree ............................................................. 6-2  
Figure 7-1. Complete Test Menu Tree ................................................................. 7-2  
Figure 7-2. Network Loopback Tests .................................................................. 7-4  
Figure 8-1. Telnet/Terminal Main Menu ........................................................... 8-1  
Figure 8-2. DS0 Temp Map ................................................................................... 8-2  
Figure 8-3. Unit Access Table ............................................................................... 8-6  
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List of Figures  
xxii  
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Table A-1. How to Configure Network Manager MIB ....................................A-5  
Table C-1. Network Pinouts ................................................................................C-1  
Table C-2. Control In/Chain in Pinout .............................................................C-2  
Table C-3. Chain Out Pinout ...............................................................................C-3  
Table C-4. V.35 Pinout - Nx56/64 DTE .............................................................C-4  
Table C-5. Pinout Connectors for Modular Jack Interface ..............................C-5  
Table C-6. 10BaseT Ethernet (TSU 120e only) ..................................................C-6  
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List of Tables  
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TSU 120 User Manual  
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Introduction  
Chapter 1  
TSU 120 OVERVIEW  
This manual covers the use of the following products:  
TSU 120  
TSU 120e  
Unless otherwise stated, the TSU 120 refers to both products.  
The TSU 120 is a T1/FT1 multiplexer with an Nx56/64 V.35  
data port, a DSX-1 (PBX) interface, one option slot, and embed-  
ded SNMP management. The TSU 120e offers a built-in dial  
back up feature for the Nx port. The TSU 120’s option slot  
accepts one of many available option modules for voice and  
data applications.  
The TSU 120 links user data sources such as local area network  
(LAN) bridges and routers, computers, CAD systems, telecon-  
ferencing equipment, and PBXs. Through the use of multiple  
data ports, the TSU 120 can simultaneously connect one or  
more of these devices to a T1 circuit. The amount of bandwidth  
allocated to each port is custom-programmable. You can manu-  
ally allocate bandwidth or set the bandwidth to automatically  
change at predetermined times to use the available bandwidth  
most advantageously. Changes in the configuration do not dis-  
rupt data flow in channels that are not being reconfigured. The  
unique architecture and the availability of option modules pro-  
vides a path for growth to accommodate future requirements.  
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Chapter 1. Introduction  
The TSU 120 offers a wide variety of network management  
options. You can manage via SNMP through the 10BaseT (TSU  
120e only) or chain-in ports. If you are using T-WATCH Pro, a  
Microsoft Windows® -based program, you can manage the  
TSU 120 via the same 10BaseT (TSU 120e only) or chain-in  
ports. An enhanced VT 100 terminal interface is also provided.  
Standard Features in the TSU 120  
The following list describes the standard features in both the  
TSU 120 and the enhanced TSU 120e.  
A single T1 interface.  
An Nx56/64 V.35 port and DSX-1 (PBX) interface.  
SNMP, Telnet, and T-WATCH Pro management via SLIP or  
10BaseT (10BaseT is only in the TSU 120e).  
Ability to proxy for “agentless” units  
Enhanced terminal mode  
An inband communication channel requiring only 8k of  
bandwidth from a single DS0.  
One option slot to house option modules with up to four ad-  
ditional ports, including voice and data.  
Allows mix of port types to meet the data interface require-  
ments.  
Easy configuration capabilities using simplistic menus dis-  
played in a liquid crystal display (LCD) window operated  
by a front panel keypad.  
Two programmable configuration maps that define the  
bandwidth allocation between data ports.  
Data drop and insert, as well as full drop and insert.  
Flash memory for software updates.  
Timing is selectable from the network, from the Nx56/64 or  
DSX-1 ports, internally, or from a secondary interface.  
Fractional T1 loopbacks as defined in Annex B of ANSI  
T1.403-1995  
QRSS; 511 test patterns using Nx option.  
Integrated Dial Backup Capability in the Base Nx56/64 port  
( TSU 120e only)  
Extensive self-testing and monitoring provides assurance of  
proper operation.  
1-2  
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Chapter 1. Introduction  
TSU Option Modules  
Some of the option modules available for the TSU 120 are:  
Name Description  
DSX-1  
Short haul T1 interface for operation  
with a PBX (Terminal Interface).  
Full Drop and Insert  
Permits the dropping of data and  
insertion of new data into the same  
DS0 time slot.  
Includes a long haul DS1 interface.  
Can be used as a second DS1  
interface to provide up to 3 MB  
aggregate throughput.  
Nx56/64 Serial Interface Provides a V.35 serial interface in  
either single or dual versions.  
Voice Interface  
OCU DP  
2/4 channel FXS/FX0/E&M.  
Interfaces to DDS or 4-wire  
Switched 56.  
DSU DP  
Dial Backup  
U-BR1TE  
Router  
Provides two sync or async ports  
(232 or V.35).  
Allows data backup upon network  
T1 failure.  
Allows ISDN lines to be extended  
over a T1 line.  
Provides 10BaseT port and integrated  
IP/IPX routing.  
NxIQ  
Provides Frame Relay monitoring  
capabilities.  
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Chapter 1. Introduction  
Option Module Architecture  
The TSU 120 features a unique architecture that allows you to  
add one option module and plug-on board to accommodate  
another application. See Figure 1-1.  
DSX-1  
TSU 120  
Module  
OCU-DP  
Module  
Plug on  
V.35  
TSU 120e  
A
1
B
2
C
3
D
E
TD1  
4
RD1  
TD2  
F
6
RD2  
5
TDN  
ALM  
/TST  
RD  
NEXT  
7
N
PREV  
ADD  
8
DELETE  
0
SHIFT  
9
QUICK  
#
V.35  
Module  
Plug on  
OCU DP  
D&I  
Module  
DUAL  
Voice  
Plug on  
Dual Voice  
Figure 1-1. TSU Option Modules  
TSU 120 CONFIGURATION APPLICATIONS  
The following example illustrates possible configurations of  
TSU 120 applications.  
Router, PBX, Video Conferencing Applications  
The base Nx54/64 provides a V.35 interface to a router. The  
PBX is interfaced to the TSU 120 with the base DSX-1 interface.  
An OCU DP module and OCU DP plug-on board provide two  
Switched-56 circuits for video conferencing. The 10BaseT port  
allows SNMP network management over the LAN (TSU 120e  
only). See Figure 1-2.  
PBX  
TSU 120  
TSU 120e  
A
1
B
2
C
3
D
E
TD1  
4
RD1  
TD2  
F
6
RD2  
5
TDN  
ALM  
/TST  
RDN  
NEXT  
7
PRV  
AD  
D
8
DELETE  
0
SHIFT  
9
QU  
#
C
ROUTER  
(TSU 120e only)  
10 BaseT LAN  
VIDEO  
CONFERENCING  
SNMP NETWORK  
MANAGEMENT WORKSTATION  
Figure 1-2. Router, PBX, Video Conferencing Application Set Up  
1-4  
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Installation  
Chapter 2  
UNPACK, INSPECT, POWER UP  
Receipt Inspection  
Carefully inspect the TSU 120 for any shipping damages. If  
you suspect damage, file a claim immediately with the carrier  
and then contact ADTRAN Customer Service (see inside the  
last page of this manual). If possible, keep the original ship-  
ping container for use in shipping the TSU 120 back for repair  
or for verification of damage during shipment.  
ADTRAN Shipments Include  
The TSU 120  
Two-line interface cable: an 8-position modular to 8-posi-  
tion modular (15 ft.)  
Loopback plug  
DB 15 to RJ adapter  
DB 25 to RJ adapter  
An 8-position modular cable for connection to the chain-in  
port (6 ft.)  
The TSU 120 and TSU 120e User Manuals  
Customer Provides  
Cables for any expansion modules to be used with the TSU  
120  
10BaseT cable for connection to a LAN or router, if you plan  
to use remote management features (TSU 120e only)  
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Chapter 2. Installation  
Power Connection  
Each TSU 120 is equipped with a captive eight-foot power cord,  
terminated by a three-prong plug which connects to a  
grounded power receptacle.  
Power to the TSU 120 must be from a grounded 90-120 VAC, 50/  
60 Hz source.  
GROUNDING INSTRUCTIONS  
Grounding instruction information from the Underwriters' Lab-  
oratory UL 1950 3rd Edition, is provided in this section.  
An equipment grounding conductor that is not smaller in size  
than the ungrounded branch-circuit supply conductors is to be  
installed as part of the circuit that supplies the product or sys-  
tem. Bare, covered, or insulated grounding conductors are  
acceptable. Individually covered or insulated equipment  
grounding conductors shall have a continuous outer finish that  
is either green, or green with one or more yellow stripes. The  
equipment grounding conductor is to be connected to ground  
at the service equipment.  
The attachment-plug receptacles in the vicinity of the product  
or system are all to be of a grounding type, and the equipment  
grounding conductors serving these receptacles are to be con-  
nected to earth ground at the service equipment.  
A supplementary equipment grounding conductor shall be  
installed between the product or system and ground that is in  
addition to the equipment grounding conductor in the power  
supply cord.  
The supplementary equipment grounding conductor shall not  
be smaller in size than the ungrounded branch-circuit supply  
conductors. The supplementary equipment grounding con-  
ductor shall be connected to the product at the terminal pro-  
vided, and shall be connected to ground in a manner that will  
retain the ground connection when the product is unplugged  
from the receptacle. The connection to ground of the supple-  
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Chapter 2. Installation  
mentary equipment grounding conductor shall be in compli-  
ance with the rules for terminating bonding jumpers at Part K  
or Article 250 of the National Electrical Code, ANSI/NFPA 70.  
Termination of the supplementary equipment grounding con-  
ductor is permitted to be made to building steel, to a metal  
electrical raceway system, or to any grounded item that is per-  
manently and reliably connected to the electrical service equip-  
ment ground.  
Bare, covered, or insulated grounding conductors are accept-  
able. A covered or insulated grounding conductor shall have a  
continuous outer finish that is either green, or green with one  
or more yellow stripes.  
The supplemental grounding conductor shall be connected to  
the equipment using a number 8 ring terminal. The terminal  
should be fastened to the grounding lug provided on the rear  
panel of the equipment. The ring terminal should be installed  
using the appropriate crimping tool (AMP P/N 59250 T-EAD  
Crimping Tool or equivalent).  
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Identification of Rear Panel Layout  
The configuration of the rear panel of the TSU 120e is shown in  
Figure 2-1. The TSU 120 rear panel is shown in Figure 2-2.  
Monitor/Test Jacks for DSX-1  
Connection  
10 Base T Connection for LAN  
DSX-1  
OPTION  
SLOT 1  
Power  
Switch  
CAUTION-RISK OF ELECTRIC SHOCK  
SUPPLEMENTAL EARTH GROUND MUST BE CONNECTED PRIOR TO  
CONNECTION OF TELECOMMUNICATIONS WIRING  
PORT 0.2  
10 BASE T  
P
O
W
E
PORT 0.1  
R
DSX-1  
OUT  
IN  
IN T-MON  
C
H
A
I
V.35  
N
90-120VAC  
50/60HZ.2A  
OUT R-MON  
NETWORK  
IN  
OUT  
T1 Network  
Connection  
Control In/Out  
Connection  
Monitor/Test Jacks  
for T1  
V.35 Connector  
Figure 2-1. TSU 120e Rear Panel  
Monitor/Test Jacks for DSX-1  
Connection  
DSX-1  
OPTION  
SLOT 1  
Power  
Switch  
CAUTION-RISK OF ELECTRIC SHOCK  
SUPPLEMENTAL EARTH GROUND MUST BE CONNECTED PRIOR TO  
CONNECTION OF TELECOMMUNICATIONS WIRING  
PORT 0.2  
P
O
W
E
PORT 0.1  
R
DSX-1  
OUT  
IN  
IN T-MON  
C
H
A
I
V.35  
N
90-120VAC  
50/60HZ.2A  
OUT R-MON  
NETWORK  
IN  
OUT  
T1 Network  
Connection  
Control In/Out  
Connection  
Monitor/Test Jacks  
for T1  
V.35 Connector  
Figure 2-2. TSU 120 Rear Panel  
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Chapter 2. Installation  
TSU 120 Interfaces  
The TSU 120 is equipped with a Nx56/64 data port, a DSX-1  
interface, an option slot, management interfaces, and a T1  
interface, in the rear panel. See Figure 2-3.  
10BaseT LAN  
(TSU 120e only)  
PC or Modem  
Control  
Input  
Chain  
Output  
Chain  
Input  
Chain  
Output  
TSU 120e  
TSU 120e  
NI  
NI  
DSX-1  
Network  
DSX-1  
Nx56/64 Option  
Nx56/64 Option  
V.35  
V.35  
DSX-1  
PBX  
Figure 2-3. TSU 120 Interfaces  
Network Interface  
The Network Interface (NI) port provides the connection to the  
T1. This port complies with the applicable ANSI and AT&T  
standards. For more information see the Wiring section in  
Appendix C, on page C-1.  
Network Test Interface  
The IN and OUT test jacks for the network interface provide  
intrusive test capability for the incoming T1. By connecting to  
these jacks with test equipment, the T1 connection will be bro-  
ken, and the test equipment will terminate the incoming T1.  
The R-MON test jack provides a bridged access jack for non-  
intrusive monitoring of the incoming T1. When connected to  
this jack, the test equipment should be configured for a bridged  
termination.  
Nx56/64 Serial Interface (TSU 120e only)  
The Nx56/64 provides a serial V.35 port that operates from  
56 kbps to 1.536 Mbps. This port provides 511 pattern genera-  
tion and detection and remote loopback capability.  
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DSX-1 (PBX) Interface  
The DSX-1 Interface provides a short haul T1 for a PBX or other  
equipment. This port complies with ANSI T1.102.  
DSX-1 Test Interface  
The IN and OUT test jacks for the DSX-1 interface provide intru-  
sive test capabilities for the T1 connecting the TSU 120 to the  
PBX or other customer premise equipment. By connecting to  
these jacks with test equipment, the DSX-1 connection will be  
broken, and the test equipment will be terminating the DSX-1  
connection from the PBX.  
The T-MON test jack provides a DSX monitor access jack for  
non-intrusive monitoring of the T1 connecting the TSU 120 to  
the PBX or other customer premise equipment. When con-  
nected to this jack, the test equipment should be configured for  
a DSX MON termination.  
Chain Port Input  
The chain port input provides an EIA-232 input from a PC or a  
modem for control of the TSU 120. You can also use it as a chain  
input from another TSU 120 or the TSU 100. For more informa-  
tion see the Wiring section in Appendix C, on page C-1.  
Chain Port Output  
The chain port output provides an EIA-232 output to chain con-  
trol to other TSUs. For more information see the Wiring section  
in Appendix C, on page C-1.  
10BaseT Interface (TSU 120e only)  
The 10BaseT interface provides the LAN interface for manag-  
ing the TSU 120 with SNMP or T-WATCH Pro. For more infor-  
mation see the Wiring section in Appendix C, on page C-1.  
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Chapter 2. Installation  
Power Up Testing  
When shipped from the factory, the TSU 120 is set to factory  
default conditions. At the first application of power, the unit  
automatically executes a memory self-test. A full self-test can  
be run from the front panel. A passcode and Unit ID may be  
set using the  
ENU.  
UTIL M  
Self-Test  
Upon a power-up, the LCD displays  
MEMORY TEST NOW TESTING  
and the Test LEDs are illuminated. When the self-test is com-  
pleted with no failures detected, the lights up and the  
OK LED  
LCD momentarily displays EMORY EST S ASSED. If a fail-  
M
T
( ) P  
ure is detected, a list of failures is displayed in the LCD win-  
dow.  
Initialization  
Set User Passcode  
The TSU 120 is designed to operate with or without the use of a  
passcode. The default condition is without a passcode.  
If the unit is to be remotely accessed using T-WATCH Pro, you  
must enter a passcode. When managing a number of units, the  
passcode can be the same for all the units.  
The passcode should be a number easily remembered. Once  
entered, the passcode is required to access any operation other  
than viewing. See Change/Set a Passcode on page 6-4 for details.  
Set Unit Identification  
The Unit ID sets the unit to respond to remote control (con-  
trolled by a device other than the front panel or terminal). If no  
Unit ID is recorded it is not possible to operate from any remote  
control device, including the local PC for T-WATCH Pro or  
SNMP. See Unit ID on page 6-4 for details.  
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Set Chain Port Input  
The TSU 120 can be configured from the chain port input when  
T-WATCH Pro, SNMP, or the terminal interface are being used.  
In this case, the chain port baud rate must also be selected.  
Chain-In (PC)  
The unit can be controlled from an external PC connected  
directly or via modem to the chain-in port. When using chain-  
in, the selection of the chain-in port baud rate from 9600 (fac-  
tory default), 1200, 2400, 19200, or 38400 must be made using  
the NIT ONFIGURATION ENU. See Unit Menu on page 5-12 for  
U
C
M
details.  
Unless locked out externally, the front panel can also control  
the unit.  
Chain-in/Chain Out  
TSU 120 units and other TSUs can be linked together to form a  
chain. Figure 2-4 provides an example of a chain-in arrange-  
ment with a PC or a modem. The first TSU 120 in the chain  
receives controlling input from the PC or modem.  
PC or Modem  
Chain  
In  
Chain  
Out  
Chain  
Input  
Chain  
Out  
Chain  
In  
Chain  
Out  
TSU 120/  
TSU 100/TSU  
TSU 120  
TSU 120/  
TSU 100/TSU  
Figure 2-4. Example of Chain-in  
Subsequent TSUs in the chain are in a position to intake infor-  
mation from another TSU. This in-taking of information from  
another TSU in the chain is identified as chain-in. The baud  
rate for the chained units must match that of the first unit.  
Unless locked out externally, the front panel can also control  
the unit.  
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At this point, the Unit Initialization procedure is concluded. If  
the unit is to be configured remotely, there are no additional  
items necessary to complete prior to executing remote configu-  
ration.  
The Passcode, the Unit ID, and the Control Port settings are  
stored in a nonvolatile memory. This ensures they are operable  
for subsequent power-up sequences.  
Power-Up Procedure  
After the unit has been put into operation with the initial  
power-up and initialization, the subsequent power-up proce-  
dure includes only the power-up self-test followed by the  
request for a passcode (password) if this option was selected  
during initialization. Use the Number Keys to enter the previ-  
ously recorded passcode and press Enter.  
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Operation  
Chapter 3  
FRONT PANEL  
The TSU 120 front panel monitors operation and controls the  
configuration of the unit. The TSU 120 front panel is shown on  
page 3-3. Figure 3-1 describes each part of the front panel.  
Table 3-1. Front Panel Descriptions  
Name  
Description  
LCD Window  
Displays menu items and messages in two  
lines by 16 characters and alarm and status  
information.  
Enter  
Selects active menu items.  
To select a menu item, press the number of  
the item. The menu item flashes,  
indicating it is activated. Press Enter to  
select the menu item.  
Up and Down  
Arrows  
Up and Down Arrows scroll through and  
activate the submenu items available in  
the current menu. When the submenu  
items are scrolled, the flashing cursor  
indicates the active parameters.  
Cancel  
Pressing the Cancel key stops the current  
activity and returns to the previous menu.  
Repeat until the desired menu level is  
reached. When a submenu item is  
displayed, press Cancel to exit the current  
display and return to the previous menu.  
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Chapter 3. Operation  
Table 3-1. Front Panel Descriptions  
Name  
Numeric Keypad  
Description  
The numeric keypad contains the numbers  
0 through 9 which are used to activate  
menu items and enter information (such as  
the IP address).  
Shift (entering  
special function  
keys)  
Enter special function keys by pressing  
and holding Shift before pressing the key  
representing the desired character.  
To activate a special function key rather  
than a number, press and hold Shift; then  
the button. See Operation Keys on page 3-5  
for a description of the function keys.  
If a key is pressed without using Shift, the  
numbered item becomes active instead of  
the special function key.  
LED Descriptions  
CSU Status  
The CSU status LEDs display the operational condition of the  
network interface located on the controller board in the unit.  
GREEN  
Indicates the operation is in the normal mode and no  
errors have been detected.  
OK (  
)
EST  
Indicates that the network interface is operating in a test  
mode. This includes a self-test or a test loopback. When  
lighted, this LED also indicates that normal data flow is  
not occurring on the network interface.  
T
(
YELLOW  
)
RROR RED  
)
Indicates an error such as a BPV, OOF, or CRC.  
E
(
LARM RED  
Indicates an alarm condition has been detected. When the  
alarm condition is no longer valid, the OK LED activates  
(turns on). To view an alarm condition, select the active  
A
(
)
alarm menu item or select LARM by pressing Shift+8. If  
A
the alarm conditions have been corrected, the alarm which  
caused the activation of the Alarm LED can be viewed  
under the Unit History menu.  
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Chapter 3. Operation  
.
No  
Description  
Action/Status  
1
LCD Window  
Displays menu items and messages in 2 lines by 16  
characters  
2
Up and Down Arrows  
Scroll through and activate the submenu items available in  
the current menu. The flashing cursor indicates the active  
parameter  
3
4
5
6
7
8
9
Enter Key  
Selects active item  
Alarm  
Quick access to the active display menus  
Clears data/results fields  
Clear  
Shift  
Provides access to special function keys  
Operation is in normal mode with no detected errors  
Active when the module is in test mode  
Active when an alarm condition has been detected  
Operation is in normal mode with no detected errors  
Active when the module is in test mode  
Active when an alarm condition has been detected  
Stops current activity and returns to the previous menu  
Copies last data entered into the current DS0  
Operation is in normal mode with no detected errors  
Active when the network interface is in test mode  
Indicates errors such as BPV, OOF or CRC  
Returns to the main menu  
OK (DSU/DSX Status)  
Test (DSU/DSX Status)  
Alarm (DSU/DSX Status)  
10 OK (Module Status)  
11 Test (Module Status)  
12 Alarm (Module Status)  
13 Cancel  
14 Copy  
15 OK (CSU Status)  
16 TEST (CSU Status)  
17 Error (CSU Status)  
18 Home  
19 Alarm (CSU Status)  
Active when an alarm condition has been detected on the  
network interface  
Figure 3-1. TSU 120 Front Panel Layout  
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Chapter 3. Operation  
DSU/DSX Status  
The DSU/DSX status LEDs display the operational condition  
of the Nx56/64 and DSX-1 parts included in the TSU 120. It  
also reflects the status of the DBU in the TSU 120e.  
GREEN  
OK (  
Indicates the operation is in the normal mode  
and no errors have been detected.  
)
EST  
Indicates that one of the interfaces is operating  
in a test mode. This includes a self-test or a test  
loopback. When lighted, this LED also indicates  
that normal data flow is not occurring in at least  
one of the module ports.  
T
(
YELLOW  
)
LARM RED  
)
Indicates an alarm condition has been detected.  
When the alarm condition is no longer valid, the  
A
(
activates (turns on). To view an alarm  
OK LED  
condition, select the active alarm menu item or  
select Alarm by pressing Shift+8. If the alarm  
conditions have been corrected, the alarm  
which caused the activation of the Alarm LED  
can be viewed under the Unit History Menu.  
Module Status  
The module status LEDs display the operational condition of  
ports installed in the option slots.  
GREEN Indicates the operation is in the normal mode  
OK (  
)
and no errors have been detected.  
EST  
T
Indicates that one of the interfaces is operating  
YELLOW  
in a test mode. This includes a self-test or a test  
loopback. When lighted, this LED also indicates  
that normal data flow is not occurring in at least  
one of the module ports.  
(
)
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LARM RED Indicates an alarm condition has been detected.  
A
(
)
When the alarm condition is no longer valid,  
the OK LED activates (turns on). To view an  
alarm condition, select the active alarm menu  
item or select Alarm by pressing Shift 8. If the  
alarm conditions have been corrected, the alarm  
which caused the activation of the Alarm LED  
can be viewed under the Unit History menu.  
Operation Keys  
OPY  
Used in the DS0 mapping menu operations to copy  
the last data entered into the current DS0. This key  
operates without pressing the Shift key.  
C
OME  
Returns home to the Main Menu from any menu  
location.  
H
A
LARM Used as quick access to the active alarm display  
menus. This can be activated while any other menu  
item is in use. When the Alarm menu is exited, the  
unit returns to the location of the same menu that  
was active when Alarm was selected.  
LEAR  
Used in various menus to clear data/result fields.  
C
General Menu Operation  
The TSU 120 uses a multilevel menu structure containing both  
menu items and data fields. All menu operations and data are  
displayed in the LCD window. The menu items are numbered  
and can be viewed by scrolling with the Up and Down arrows.  
ATA IELD You can edit menu items followed by a colon (:).  
D
F
ISPLAY  
You cannot edit menu fields followed by an  
D
NLY IELD equal symbol (=). This symbol identifies a field  
O
F
used for value display only.  
RROWS  
Menus that display small up or down arrows in  
the lower right corner indicate there are more  
menu items than are visible on a two-line LCD.  
Access the additional items with the up or down  
arrows. You can also access undisplayed menu  
items by using the appropriate menu number.  
A
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Chapter 3. Operation  
Select and Activate a Menu Item  
To choose menu items, place the cursor on the desired menu  
item by pressing the number corresponding to the menu item  
or highlighting the menu item with the up and down arrow.  
Activate the LARM IST option from the TATUS ENU by  
A
L
S
M
using the following steps.  
Step  
Action  
1
Activate the STATUS MENU using the arrow keys or by  
pressing 1. The cursor will flash on the number next  
to the activated selection.  
2
3
4
Press Enter.  
View the submenu items by using the arrow keys.  
Choose an item on the submenu such as ACTIVE  
ALARMS.  
5
Select the submenu with the Arrow Keys or by  
pressing 3.  
6
7
Press Enter.  
View the Alarm List by using the arrow keys.  
.
1) NI PERF RPTS  
2) NI ERRORS  
3) ACTIVE ALARMS  
4) VIEW HISTORY  
5) PORT STATUS  
(ALARM LIST)  
END OF LIST  
1)STATUS  
6) REMOTE PORT  
7) CLEAR PORT ALM  
8) ENET STATUS  
9) SLIP STATUS  
Figure 3-2. Example of Basic Front Panel Menu Tree  
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Chapter 3. Operation  
Set the Data Field  
You can edit data fields preceded by a colon (:).  
Step  
1
Action  
Position the cursor on the submenu item number, and  
press Enter. The cursor moves to the data field, (to the  
right of the submenu item name).  
2
3
Using the Arrow Keys, scroll to scan the available value  
settings. The value settings display one at a time in the  
data field position.  
When the desired value is displayed in the data field  
position, press Enter to set that value. When the value  
is set, the cursor moves back to the submenu item  
position indicating the operation is complete.  
4
5
Select another submenu field, or press Cancel to return  
to the submenu.  
Press Cancel before pressing Enter to void any data  
changes. The original data value is restored and the  
cursor returns to the submenu field.  
Display Only Data Fields  
Data fields preceded by an equal (=) symbol cannot be edited.  
See Figure 3-3.  
Data Field  
Display Field  
Figure 3-3. Display and Data Fields  
Press Enter to move the cursor to the data field. Use arrows to  
select  
and press Enter. The unit automatically sets the  
AUTO  
Line Build Out. The display field shows the value actually set.  
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The equal symbol after LBO in the second line indicates the  
information that follows is displayed data and cannot be  
edited.  
Exit Any Menu Field Operation Or Display  
Press Cancel as many times as needed to return to the desired  
menu level or press Shift+0 (Home) to return to the main menu.  
Data Port Identification  
When configuring the unit, menu selections will include  
options from data port submenus. Selecting data ports is neces-  
sary because the TSU 120 uses a slot-port method to identify  
which data port the menu item is referencing. If a module con-  
taining a PBX DSX-1 option card with an Nx56/64 plug-on  
interface is installed in the option slot, it would be designated  
as:  
DSX-1 Passthru=1.1  
Where slot=1 and port =1.  
The DSX-1 is located in the option slot and is the first port in  
that slot.  
Nx56/64=1.2  
Where slot=1 and port=2.  
The Nx is located in the slot and is the second port in that  
slot.  
The ports that are built into the TSU 120 are referenced as Slot  
0. The Nx56/64 would be designated as 0.1 and the DSX-1  
would be referenced as 0.2.  
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Chapter 3. Operation  
Front Panel Menu Structure  
The TSU 120 uses a multilevel menu structure containing both  
menu items and data fields. All menu operations and data dis-  
play in the LCD window.  
The opening menu is the access point to all other operations.  
Each Main menu item has several functions and submenus to  
identify and access specific parameters.  
The front panel LCD of the Main menu contains the following  
options  
1=STATUS  
2=CONFIG  
3=UTIL  
4=TEST  
Status  
The Status menu displays all relevant information for the net-  
work and DTE interfaces. For detailed information on status  
options, see Chapter 4, Status Menu on page 4-1.  
Config (Configuration)  
The Configuration menu displays and sets the TSU 120 opera-  
tional configuration, including all network interface parame-  
ters, the allocation of the DS0s, and the port parameters. For  
detailed information on configuration options, see Chapter 5,  
Configuration Menu on page 5-1.  
Util (Utilities)  
The Utility menu displays and sets system parameters. For  
detailed information on utility options, see Chapter 6, Utility  
Menu on page 6-1.  
Test  
The Test menu initiates different types of unit tests and dis-  
plays test results in the LCD window. For detailed information  
on test options, see Chapter 7, Test Menu on page 7-1.  
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Chapter 3. Operation  
Alternate Methods of Control  
T-WATCH Pro (ADTRAN PC Program)  
T-WATCH Pro is the ADTRAN PC control program. It provides  
complete control over the configuration of the TSU 120 using a  
graphical interface. The T-WATCH Pro program displays the  
same status and performance data as the front panel LCD. This  
data is displayed in the form of tables and graphs.  
The T-WATCH Pro program has the following capabilities:  
Interfaces with a modem which permits dialing into a re-  
mote TSU 120 location to configure the unit or read the sta-  
tus or performance of the unit.  
Receives traps from any TSU product.  
Records and creates display performance data over a 30-  
day period.  
Accesses units via the local area network (TSU 120e only).  
T-WATCH Pro/LAN Connection  
To set up the TSU 120 to work with T-WATCH Pro over the  
LAN, follow these steps:  
Step  
1
Action  
Set the Unit ID using the front panel. See Unit ID on  
page 6-4 for details.  
2
3
4
Set ONTROL ORT interface to NORMAL using the  
Front Panel  
C
P
Configure the  
ADDRESS, DEFAULT GATEWAY, and  
IP  
SUBNET MASK using the front panel.  
Follow the installation instructions for T-WATCH Pro  
to start the program and connect to the unit.  
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Chapter 3. Operation  
T-WATCH Pro/EIA-232 Connection  
To set up the TSU 120e to work with T-WATCH Pro over a  
direct EIA-232 connection, follow these steps:  
Step  
1
Action  
Set the Unit ID and set a passcode using the front  
panel. See Unit ID on page page 6-4 and Set a Passcode  
on page 6-4 for details.  
2
3
Set the control port rate to the same setting as the PC  
Com port.  
Connect the PC Com port to the chain-in port on the  
TSU 120 using the DB25 adapter and modular cable  
provided.  
4
Follow the installation instructions for T-WATCH Pro  
to start the program and to connect to the unit.  
SNMP  
The ADTRAN TSU 120 supports the Simple Network Manage-  
ment Protocol (SNMP) through the chain-in (SLIP) interface.  
The TSU 120e offers a 10BaseT connection which also supports  
SNMP. For more information on SNMP see Appendix A, Under-  
standing SNMP on page A-1.  
To use SNMP via 10BaseT (TSU 120e only), follow these steps:  
Step  
Action  
1
2
Set ONTROL ORT to  
.
NORMAL  
C
P
Set the  
MASK.  
ADDRESS, DEFAULT GATEWAY, and SUBNET  
IP  
3
4
The appropriate MIB browser must be loaded into the  
Network Management Station (available on the  
ADTRAN webpage at http://www.adtran.com).  
The MIB browser issues SNMP gets/sets to the TSU  
120e.  
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Chapter 3. Operation  
To use SNMP via SLIP port, follow these steps:  
Step  
Action  
1
2
Set ONTROL ORT to  
.
C
P
SLIP  
Set the  
ADDRESS. The DEFAULT GATEWAY, and  
IP  
SUBNET MASK are not used in SLIP.  
3
The appropriate MIB browser must be loaded into the  
Network Management Station (available on the  
ADTRAN webpage at http://www.adtran.com).  
4
The MIB browser issues SNMP gets/sets to the TSU  
120e.  
Terminal Mode  
The TSU 120 provides the front panel menus to a VT 100-type  
terminal. This mode can be used to configure and monitor the  
unit. Initiate this mode by keying in  
on the termi-  
<CTRL> PTT  
nal once it is connected to the chain-in port. For more informa-  
tion on this method of control, see Chapter 8, Telnet/Terminal  
Menus on page 8-1.  
TELNET  
To connect to the TSU 120 via TELNET, follow these steps.  
Step  
1
Action  
Before attempting to connect via TELNET, first define  
the IP address, the default gateway, and the subnet  
mask using the front panel.  
2
3
4
When you begin the TELNET session, you will be  
prompted for a password. The default password is  
.
ADTRAN  
You can change this password using the Management  
submenu. See Default Unit Passcode on page 8-7 for  
more information.  
The TELNET session will time out after a predefined  
value that is also set in the Management menu.  
Only one TELNET session can be active at one time.  
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Status Menu  
Chapter 4  
The Status menu branch provides the ability to view the status  
of the TSU 120 operation. See Figure 4-1.  
%AS  
%EF  
1) NI PERF RPTS  
ES  
SES  
UAS  
2) NI ERRORS  
1)STATUS  
3) ACTIVE ALARMS  
4 )VIEW HISTORY  
(ALARM LIST)  
END OF LIST  
(HISTORY LIST)  
END OF HISTORY  
1) DTE DATA/CLOCK  
5) PORT STATUS  
0.1 Nx56/64  
2) DTE STATUS  
3) PORT RATE  
4) DBU DATA/CNTR (TSU 120e)  
5) DBU CONTRL (TSU 120e)  
6) DBU STATUS (TSU 120e)  
6) REMOTE PORT  
7) CLEAR PORT ALM  
8) ENET STATUS  
0.2 DSX-1  
DSX-1 ERRORS  
(OPTION LIST)  
Figure 4-1. Complete Status Menu Tree  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the direction of scrolling  
to use to view additional menu items. At every level of the  
menu, pressing Cancel returns the system to the previous menu  
level. Pressing Cancel repeatedly returns the system to the main  
menu.  
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Chapter 4. Status Menu  
Network Performance Reports (NI PERF RPTS)  
The Network Interface Performance Reports display the user  
copy of the performance data. The TSU 120 maintains this per-  
formance data on the network in compliance with ANSI T1.403  
and AT&T document TR54016. The data displayed is data accu-  
mulated over the last 15 minutes and over the last 24 hours.  
Use the scroll keys to access the complete display of the follow-  
ing report fields, as shown in Figure 4-2:  
15 Minutes  
24 Hours  
Data Values  
Figure 4-2. Network Interface Performance Report  
AS  
EF  
Percentage of available seconds  
Percentage of error-free seconds  
%
%
ES  
Number of errored seconds (1 or more  
errors/second  
SES  
UAS  
Number of severely errored seconds (more  
than 320 errors/second)  
Number of unavailable seconds (10 or  
more consecutive seconds)  
If insufficient time has passed to collect data,  
displays.  
NA  
Continue with standard operating procedures to exit the dis-  
play.  
When this menu is active, performance data can be cleared by  
pressing Clear (Shift+9) on the keypad. Only the user copy of  
the performance data is cleared.  
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Chapter 4. Status Menu  
Since only the users copy of performance data is cleared by the  
TSU 120, the data displayed here might be different from the  
data sent to the network as PRM data.  
Network Interface Errors (NI ERRORS)  
The NI ERRORS submenu displays the types of errors the Net-  
work Interface (NI) detects. A blinking CSU error LED indi-  
cates that network errors are detected.  
The asterisk (*) above an item indicates the type of errors  
detected. The error types are the following:  
CRC  
CRC-6 bit errors based on the FDL. This is valid  
only in ESF mode.  
BPV  
Bipolar violations.  
Excess zeros.  
XS  
0
FER  
Framing errors.  
Active Alarms  
This menu item displays a list of current alarms ( LARM IST)  
A
L
reported by either the base controller or any of the ports. If no  
alarms are current, using this menu item displays  
.
End of List  
This display includes two lines of text. The top line is the alarm  
source. The bottom line is the alarm message. See Figure 4-3 on  
page 4-4. A list of alarm messages is found in Appendix C, TSU  
120 System Messages on page C-1.  
In addition to normal menu operation, you can also access this  
menu item with the Alarm function (Shift+8) on the keypad. If  
one or more of the Alarm LEDs are illuminated, an alarm is  
present. Pressing Cancel returns to the previous menu item.  
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Chapter 4. Status Menu  
Alarm Source  
Alarm Message  
Figure 4-3. Display of Alarm Message  
View History  
This menu item both displays and clears the accumulated sta-  
tus changes of the unit.  
View History displays a history of the first 20 status changes in  
the unit, including the date, time, and type of change. The unit  
also records for viewing, the date and time an alarm became  
active and inactive, as well as the date and time of test activa-  
tion and deactivation.  
To clear the View History display, press Clear (Shift+9) with the  
View History menu active.  
Port Status  
Port Status displays the signals monitored on the data ports.  
For example, the Nx/DBU interface monitors the RTS, CTS,  
and RD, along with other signal lines. When a port is selected,  
the LCD indicates if the signal is present.  
The base Nx interface offers the status screen listed in this sec-  
tion. When using other option cards, refer to the appropriate  
separate manual for a definition of any status screens offered.  
The Port Status of Nx/DBU is examined as an example of how  
to use this item. The DBU feature is available only in the  
TSU 120e.  
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Chapter 4. Status Menu  
0.1 Nx56/64 Menu Items  
DTE Data/Clock  
An asterisk (*) indicates an active status of the following lines.  
TXD  
RXD  
Transmit data from the DTE  
Receive data toward the DTE  
Excess Zeros from the DTE  
XS  
0
LCK  
Lock Status of the phase locked loop  
DTE Status  
An asterisk (*) indicates an active status of the following lines:  
RTS  
CTS  
DCD  
DSR  
Request to send from DTE  
Clear to send to DTE  
Data carrier detect to DTE  
Data set ready to DTE  
Port Rate  
The port rate displays the current setting of the Nx port. Con-  
tinue with standard operating procedures to exit the display.  
DBU Data/CNTRL (TSU 120e only)  
An asterisk (*) indicates an active status on the following lines:  
TXD  
RXD  
DCD  
RI  
Transmit data to the DCE  
Receive data from the DCE  
Data carrier detect from the DCE  
Ring indicate from the DCE  
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Chapter 4. Status Menu  
DBU Contrl (TSU 120e only)  
RTS  
CTS  
DTR  
DSR  
Request to send to DCE  
Clear to send from the DCE  
Data terminal ready to the DCE  
Data set ready from the DCE  
DBU Status (TSU 120e only)  
DBU SECS  
IN DBU  
Total seconds in current DBU session  
YES/NO indication of active DBU status  
0.2 DSX-1 Menu Items  
DSX-1 Errors  
CRC  
An asterisk displays under the CRC if there are  
CRC errors in extended superframe format  
(ESF) mode. If the DSX-1 plug-on board is  
configured for D4 Frame format, the LCD  
displays n/a.  
BPV  
SLIP  
An asterisk displays under the BPV if the DSX-1  
plug-on board detects bipolar violations.  
An asterisk displays under the SLIP if the DSX-1  
plug-on board detects frame slips. This is  
caused by multiple clock sources in the  
application.  
FER  
An asterisk displays under the FER if the  
DSX-1 plug-on board detects frame bit  
synchronization errors.  
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Chapter 4. Status Menu  
Remote Port  
Remote Port displays the status of activity on the control-in  
remote port. This is useful for troubleshooting communication  
sessions, and for verifying cabling.  
RX  
ID  
Characters received at remote port  
Unit ID received at remote port  
CRC Correct CRC received  
PC  
TX  
Correct passcode received  
Characters transmitted from the remote port  
Clear Port Alarm (Clear Port Alm)  
Clears the Link Failed alarms on option modules that have  
been removed from the TSU 120 chassis.  
ENET Status (TSU 120e only)  
TX  
Indicates that data is being transmitted from the  
10BaseT port.  
RX  
Indicates that data is being received by the  
10BaseT port.  
LNK Indicates the current status of the 10BaseT link  
integrity test. This should always be on when the  
unit is connected to a functional 10BaseT hub.  
CPU Active when the CPE is accessing the 10BaseT  
interface.  
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Chapter 4. Status Menu  
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Chapter 5  
The ONFIGURATION ENU sets the TSU 120 operational config-  
C
M
uration, including all network interface parameters, the alloca-  
tion of the DS0s, and the port parameters. See Complete  
Configuration Menu on page 5-2.  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the direction of scrolling  
to view additional menu items. At every level of the menu,  
pressing Cancel returns the system to the previous menu level.  
Pressing Cancel repeatedly returns the system to the AIN  
M
ENU.  
M
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Chapter 5. Configuration Menu  
1) FORMAT  
1) CTL PORT RATE  
2) TRAPS  
2) CODE  
3) YEL ALARM  
4) XMIT PRM  
5) TIMING MODE  
3) ACCESS  
4) INIT MODEM  
5) CONTROL PORT  
6) IP ADDRESS  
7) SUBNET MASK  
8) DEFAULT ROUTER  
9) SLIP RATE  
1) NETWORK (NI)  
6) SET LBO  
7) INBAND LPBCK  
8) BIT STUFFING  
9) TR-08 OPTIONS  
ALARM REPORTS  
ALARM FORMATS  
BPV THRESHOLD  
2) UNIT  
A) SLIP FLOW CTL  
B) PROXY TRAPS  
3) MAP XCHNG  
OFF  
AUTO  
4) MAP IN USE: A(B)  
5)DS0 MAP A  
1) MAP A @:HH:MM  
2) MAP B @:HH:MM  
3) CONFIG  
1) COPY A > TEMP  
2) CREATE TEMP  
3) REVIEW MAP A  
4) REVIEW TEMP  
5) EDIT TEMP  
1) DSO RATE  
2) TX CLK CNTRL  
3) DATA  
1) COPY B > TEMP  
2) CREATE TEMP  
3) REVIEW MAP B  
4) REVIEW TEMP  
5) EDIT TEMP  
6) DS0 MAP B  
4) CTS  
6) APPLY TEMP > A  
5) DCD  
6) DSR  
6) APPLY TEMP > B  
0.1 Nx56/64 Config  
7) “0” INHIBIIT  
8) INBAND MODE  
9) TX CLK SOURCE  
7) PORT CONFIG  
Nx56/64 (0.1)  
THIS SECTION APPLIES ONLY TO THE TSU 120e  
1) BACKUP MODE  
DBU Config  
2) BACKUP ON  
02. DSX-1  
1) FORMAT  
3) PATTRN VERIFY  
(OPTION PORTS)  
2) CODE  
4) BACKUP DELAY  
3) YELLOW ALARM  
4) LINE LENGTH  
5) INBAND LPBACK  
6) ROB BIT SIGNL  
5) RESTORE DELAY  
6) RETRY DELAY  
7) NUM RETRIES  
8) BACKUP TESTING  
9) WKEND LOCKOUT  
A) ENABLE HR  
1) BACKUP TEST  
2) TEST HOUR  
3) TEST DAY  
B) DSABLE HR  
C) TRAP IN DBU  
Figure 5-1. Complete Configuration Menu  
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Chapter 5. Configuration Menu  
NETWORK (NI)  
This menu item accesses the configuration of parameters asso-  
ciated with the network interface in the base unit. There are  
nine submenu items that include setting the format, the line  
build out (LBO), and the timing mode. Submenu items do not  
include setting the parameters which may be necessary for a  
secondary interface (DSX-1 Passthru, etc.).  
Network (NI) Menu Items  
The menu items are:  
Menu Item  
FORMAT  
Description  
Sets the frame format for the NI.  
Choices: D4, ESF, and SLC96  
D4 is equivalent to superframe format (SF).  
CODE  
Sets the line code for the NI.  
Choices: AMI and B8ZS.  
YEL ALARM Enables and disables the transmitting of yellow alarms.  
Choices: ENA and DISA.  
XMIT PRM  
Enables and disables the sending of PRM data on the  
facility data link (FDL). The PRM data continues to be  
collected even if XMIT PRM is disabled (possible only  
with ESF Format).  
Choices: Off and On.  
TIMING  
MODE  
Selects the clock source for transmission toward the  
network from the NI. See TSU 120 Clock Sources on page  
5-5 for more information  
Choices: Network, DTE (Slot 1), Normal (CSU), U-  
BR1TE (Slot 1), Internal, Secondary (SI).  
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Chapter 5. Configuration Menu  
Menu Item  
Description  
SET LBO  
Selects the line build out for the network interface. In  
AUTO MODE, the TSU 120 sets the LBO based on the  
strength of the receive signal and displays the selected  
value.  
Choices: 0.0 dB, 7.5 dB, 15 dB, 22 dB, Auto.  
In order to activate the -36 dB receiver sensitivity, the  
LBO should be set to AUTO.  
This feature is useful in a point-to-point application  
where no network elements are involved. If a network  
element such as a Smart Jack is installed on the circuit,  
the LBO should be set to 0 dB.  
INBAND  
LPBCK  
Sets unit to accept or reject the network interface loop-  
up and loop-down codes as defined in ANSI T1.403.  
Choices: Accept, Reject.  
BIT  
STUFFING  
When enabled, bit stuffing causes the TSU 120 to  
monitor for ones (1s) density violations and insert a one  
(1) when needed to maintain 1s at 12.5 percent.  
Choices: Enable, Disable.  
TR-08  
The TR-08 submenu configures the unit for TR-08  
applications. The submenu items and their descriptions  
follow.  
Alarm Report  
Enables and disables the transmitting of alarm reports.  
Choices: SEND ALARMS, DISABLE ALARMS  
Alarm Format  
Sets the alarm frame format to 13 frames or 16 frames.  
Choices: ORB-13, ORB-16  
BPV Threshold  
Sets the threshold for BPVs to trigger an alarm.  
Choices: 10-4, 10-5, 10-6  
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Chapter 5. Configuration Menu  
TSU 120 Clock Sources  
The TSU 120 is operable from various clock sources permitting  
it to perform properly in many different applications. Set the  
network interface clocking options with the clocking options  
set by the Network (NI) Configuration menu options.  
The following clock source options are available:  
Network  
Base DSX-1 Timing  
DTE Timing  
Internal Timing  
Secondary Timing  
Normal (CSU) Timing  
U-BR1TE  
The selected clock option always designates the clock source for  
transmission. Clocking necessary for receiving data is always re-  
covered from incoming data.  
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Chapter 5. Configuration Menu  
Network Timed  
The network is the source of timing. The received data clocking  
is looped back to the network where it is used to determine the  
transmission timing. This option is also referred to as loop  
timed as the transmission clock is derived from the received  
clock. See Figure 5-2.  
.
Figure 5-2. Network Timed Clock Source  
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Chapter 5. Configuration Menu  
Base DSX-1 Timing  
The PBX is the source of timing. The TSU 120 uses the clock  
derived by the Base DSX-1 interface for transmission timing.  
See Figure 5-3.  
OSC  
T1 XMIT  
Network  
(DS1)  
Interface  
(OPTION)  
T1 Receive  
DSX-1  
PBX  
Nx56/64  
DTE CLOCK  
DTE  
Figure 5-3. DSX-1 Timed Clock Source  
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Chapter 5. Configuration Menu  
DTE Timing  
The DTE is the source of timing. The TSU 120 uses the incom-  
ing DTE clock to determine the transmission timing. This is  
typically used in applications where it is necessary to have the  
DTE as the primary clock source, (such as limited distance line  
drivers). See Figure 5-4.  
OSC  
T1 XMIT  
Network  
Interface  
(DS1)  
(OPTION)  
T1 Receive  
DSX-1  
PBX  
Nx56/64  
DTE CLOCK  
DTE  
Figure 5-4. DTE Timed Clock Source  
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Chapter 5. Configuration Menu  
Internal Timing  
The TSU 120 is the source of timing. The TSU 120 is configured  
to use its own internal oscillator as the source of timing. Appli-  
cations include private line driver circuits where one end is set  
to network and the other to internal. See Figure 5-5.  
OSC  
T1 XMIT  
Network  
Interface  
(DS1)  
(OPTION)  
T1 Receive  
DSX-1  
PBX  
Nx56/64  
DTE CLOCK  
DTE  
Figure 5-5. Internal Clock Source  
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Chapter 5. Configuration Menu  
Secondary Timing  
The secondary interface is the source of timing. The TSU 120  
uses the clock derived by the secondary interface for transmis-  
sion timing and the receive signal timing. See Figure 5-6.  
Either a DSX-1 Option Module or a Drop and Insert Option  
Module must be installed in the TSU 120 for this mode to func-  
tion.  
OSC  
T1 XMIT  
Secondary  
Network  
Interface  
(DS1)  
(IO PB)  
Interface  
(NI)  
(SI)  
(OPTION)  
T1 Receive  
PBX  
DSX  
Nx56/64  
DTE CLOCK  
PBX  
DTE  
Figure 5-6. Secondary Timing  
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Chapter 5. Configuration Menu  
Normal (CSU) Timing  
In the Normal (CSU) Timing mode, the Receive Clock is  
derived from the Network Interface while the Transmit Clock is  
derived from the PBX or other alternative timing source, con-  
nected to the Secondary Interface (e.g., Drop and Insert or  
DSX-1). See Figure 5-7.  
This timing option is the same as that typically used for CSUs.  
This is the preferred mode for use with a PBX application.  
Secondary  
Network  
Interface  
(SI)  
(OPTION)  
Interface  
(NI)  
Figure 5-7. Normal (CSU)  
The network interface and secondary interface clocking options  
are set by using the Network (NI) Configuration menu options.  
Either a DSX-1 Option Module or a Drop and Insert Option  
Module must be installed in the TSU 120 for this mode to func-  
tion.  
U-BR1TE  
The U-BR1TE timing selection works like Normal (CSU) except  
that timing is derived from the U interface on port 1.1.  
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Chapter 5. Configuration Menu  
Unit Menu  
The Unit menu changes the baud rate of the chain in port and  
the setup of the dial out port. The menu items are:  
Menu Item  
Description  
CTL PORT  
RATE  
Sets the baud rate for communication with  
the PC or modem.  
Choices: 1200, 2400, 9600, 19200, and 38400  
kbps  
TRAPS  
Enables or disables the transmission of trap  
messages.  
Choices: Enable, Disable  
ACCESS  
Sets the method of connection from the  
TSU 120 to T-WATCH Pro/SNMP  
Choices:  
Direct - Used if connected directly to the PC.  
Dial - Used when connection is through a  
modem. The dial string is entered from  
T-WATCH Pro/SNMP.  
INIT MODEM Allows you to choose an industry standard  
or a custom initialization string for a modem  
connected to the control port.  
Choices: Industry Standard, Custom  
Initialization String  
CONTROL  
PORT  
Selects the TCP/IP physical interface;  
Normal, using the 10BaseT Ethernet or SLIP  
using the EIA-232 serial port (10BaseT is only  
available in the TSU 120e).  
Choices: Normal, SLIP  
If this option is set to SLIP, the EIA-232  
port may not be used as a terminal inter-  
face.  
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Chapter 5. Configuration Menu  
Menu Item  
Description  
IP ADDRESS  
This is the IP address that uniquely identifies  
the TSU 120 on a TCP/IP network.  
This address is composed of four decimal  
numbers, each in the range of 0 to 255,  
separated by periods. This value is used for  
either the 10BaseT Ethernet or SLIP interface,  
depending on the IP interface setting  
(10BaseT is only available in the TSU 120e).  
SUBNET  
MASK  
This defines which part of a destination IP  
address is the Network number. It is used  
along with the TSU 120 IP address to  
determine which nodes must be reached  
through the default IP Gateway. This value is  
ignored when the IP interface is set to  
.
SLIP  
DEFAULT  
ROUTER  
All IP Packets destined for nodes not on the  
TSU 120 unit’s local network are not  
forwarded through this IP address.  
Normally, this address defines a router  
connected to the TSU 120 unit’s local  
network. This value is ignored when the IP  
interface is set to  
.
SLIP  
SLIP RATE  
This sets the baud rate for the Chain-In port  
when used as the SLIP connection for SNMP  
management.  
Choices: 1200, 2400, 4800, 9600, 19200, 38400  
Kbps  
SLIP FLOW  
CTL  
This is used to activate flow control on the  
Chain-In port when used as the SLIP  
interface. Hardware mode uses RTS and CTS.  
Choices: None, Hardware  
PROXY TRAPS This determines whether or not traps will be  
forwarded from units being “proxied” for.  
Choices: Enable, Disable  
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Chapter 5. Configuration Menu  
Map Exchange (Map Xchng)  
The AP XCHANGE menu enables and sets the automatic time  
M
E
of day map switch. The unit provides selection of the hour,  
minute, and seconds for the map switching to take place.  
The menu items are:  
Menu Item  
OFF  
Description  
Indicates the map in use does not change  
(disabled).  
AUTO  
Indicates that the map in use will change at a  
user-selected time of day (enabled).  
1. Scroll to select  
to enable or  
to disable the  
OFF  
AUTO  
Automatic Map Change feature.  
2. Press Enter to activate the selection.  
3. When is selected, the unit displays the screens to  
AUTO  
set times for switching.  
4. After editing Map A, press Enter to record the Map A  
settings and activate the selection fields for Map B.  
5. Use the same operation to edit switching time for  
Map B.  
When ESF is used with an FDL channel between units, the  
units automatically coordinate the automatic map switch by  
sending a map switch command from end-to-end over the  
FDL. Only one end needs to be set to Auto for this to work.  
Map In Use: A(B)  
The AP IN SE menu item controls the DS0 map the TSU 120  
M
U
uses and displays the map in current use.  
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DS0 Map A and DS0 Map B  
The DS0 maps designate which DS0s are assigned to which  
port. See Figure 5-8. There are three maps,  
AP  
,
DS0 M A DS0  
AP , and the EMPORARY EMP MAP.  
M
B
T
(T  
)
T E M P  
M A P A  
M A P B  
Figure 5-8. DS0 Map Designations  
Map A and Map B are the current maps the TSU 120 uses. The  
Temp map generates a map before putting it into use.  
You can copy Map A to Map B by copying the Map A into the  
TEMP map. Then apply (write) the TEMP map into Map B.  
The menu items are:  
Menu Item  
Description  
COPY A (B) >TEMP This copies the current map (A or B) into a  
Temp Map area. This permits modification  
without disturbing the existing map. When  
the modifications are completed, the Temp  
Map is written to current MAP A B by  
( )  
selecting  
.
Apply  
CREATE TEMP  
This creates a map by defining a port or Idle  
for all DS0s. When CREATE TEMP is first  
selected, all DS0s are set to  
See DS0 Map  
Idle.  
Example on page 5-16 for more information.  
REVIEW MAP A(B) Permits a quick review of the number of  
DS0s assigned to each port and the number  
of unassigned DS0s (  
) as defined  
Idle or TST  
in the currently applied Map A(B).  
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Chapter 5. Configuration Menu  
Menu Item  
Description  
REVIEW TEMP  
This menu item is operated the same for the  
Temp Map as is REVIEW MAP A or MAP B.  
3)  
EDIT TEMP  
The map in the Temp file can be edited to  
whatever configuration is desired. If Map A  
had been copied into the Temp file, then after  
editing, the Temp file could be applied to  
MAP A or MAP B. The menu operation is  
identical to  
CREATE TEMP with the  
2)  
exception that the existing port selections  
display.  
APPLY TEMP> A(B) Writes the Temp map into MAP A.  
is  
Apply  
usually the last step in updating a map and is  
accessed automatically at the end of editing  
or creating a temporary map. Currently, it  
can be bypassed by selecting another menu  
choice.  
DSO Map Example  
A sample selection follows:  
DS0: 01 to 24  
PORT: IDLE, TST, + option module ports  
TST designates which DS0s are used for QRSS testing when  
activated under the TEST MENU. When not used for testing, the  
TST designation is identical to  
.
Idle  
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Chapter 5. Configuration Menu  
With the cursor on CREATE TEMP, press Enter. The unit displays  
the selection screen with the cursor positioned on the first  
selection DS0 number. See Figure 5-9.  
Select DS0 Number  
Select Port  
Figure 5-9. Create Temp Selection Screen  
1. Use either the Arrow Keys or Numbers to enter the DS0  
number (do not mix the use of the keys).  
2. Press Enter to complete the selection and move the cur-  
sor to Port, the next field.  
3. Scroll to select the port which is dependent on the  
installed option card.  
4. Press Enter to complete the selection and move the  
cursor back to the DS0 field.  
5. With the cursor on the DS0 field, the DS0 number can  
be incremented or decremented by scrolling.  
6. Press Copy to place the contents of the last DS0 in the  
new DS0 number.  
7. When all entries are complete, press Cancel to move  
the cursor to the last of the submenu choices, 6 APPLY.  
)
8. Either apply the newly created DS0 map or press  
ANCEL to return to the DS0 MAP A B submenu  
C
( )  
choices.  
Selecting  
will not disrupt the operation of unmodified  
Apply  
ports.  
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Chapter 5. Configuration Menu  
Port Configuration (Port Config)  
Port Configuration selects and configures the parameters asso-  
ciated with any data port in the unit. For example, parameters  
for the DSX-1 (PBX) interface are set through this menu. The  
items that can be set depend on which option module is  
installed. The list of option ports will vary with the configura-  
tion.  
The TSU 120 is designed so that any additional ports devel-  
oped in the future will contain the appropriate menu selections  
to provide access by use of this menu item.  
The Config menus for options ports are described in separate  
sections of the manual supplied with the option card.  
0.1 Nx56/64 Port Configuration (Port Config) Menu Items  
There are two major menu items under Nx/DBU configura-  
tion:  
X
ONFIG and  
ONFIG. Only the TSU 120e  
N 56/64 C  
DBU C  
offers the DBU feature.  
Nx56/64 Menu Items  
Menu Item  
Description  
DS0 RATE  
This sets the base rate of the interface. The  
actual data rate depends on the number of  
DS0s assigned to the Nx port.  
Choices: 56K, 64K  
TX CLK CNTRL  
Controls the clock used by the TSU 120 to  
accept transmit (TX) data from the DTE. The  
default is normal. If the interface cable is  
long, causing a phase shift in the data, the  
clock can be selected as Invert. This switches  
the phase of the clock which should  
compensate for a long cable.  
Choices: Normal, Invert  
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Chapter 5. Configuration Menu  
Menu Item  
DATA  
Description  
Used to control the inverting of the DTE  
data. This inversion can be useful when  
operating with an HDLC protocol. Often  
used as a means to ensure 1s density.  
Choices: Normal, Invert  
If Invert is selected, zero (0) inhibit  
should also be selected to prevent an  
open DTE input from placing zeros on  
the network.  
CTS  
Used to control characteristics of CTS.  
Choices: Normal*, Force On  
*See Table 5-1 on page 5-20.  
DCD  
Data Carrier Detect. Indicates to the DTE  
when a valid signal is being received at the  
Network Interface.  
Choices: Normal*, Force On  
*See Table 5-1 on page 5-20.  
DSR  
Data Set Ready. This signal indicates to the  
DTE when the DCE is turned on and ready  
for operations.  
Choices: Normal*, Force On  
*See Table 5-1 on page 5-20.  
0 INHIB  
The Nx interface will detect an uninterrupted  
string of zeros (0s) being transmitted toward  
the network. If 0s are transmitted for >1  
second, the TSU 120 will force 1s.  
Choices: On, Off  
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Chapter 5. Configuration Menu  
Menu Item  
Description  
INBAND MODE  
The Nx56/64 port is capable of providing an  
inband communications channel (for T-  
Watch and SNMP) between units. This is  
accomplished by using 8 kbps of the first DS0  
assigned to that particular Nx56/64 port. If  
in 56 K mode, no data bandwidth will be  
used. Inband must also be enabled at the  
destination port.  
Choices: On, Off, On Demand  
TX CLK SOURCE  
This controls the source of the clock used by  
the TSU 120 to accept transmit data from the  
DTE. The default is INTERNAL. If the  
application requires that the DTE device  
provides the clock with the transmit data, the  
EXTERNAL setting is used.  
Choices: Internal, External  
Table 5-1. Normal Mode of Operation  
Signal  
RTS  
V.54 Loop- 511 TST  
back ON  
Follows OFF OFF  
Self Test NetwkTest  
Active Active  
No DS0  
Mapped  
OFF  
Network  
Alarm  
CTS  
DCD  
DSR  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
Where “—” = don’t care  
*Until backup becomes active  
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Chapter 5. Configuration Menu  
DBU Configuration Menu Items (TSU 120e only)  
Menu Items  
Description  
BACKUP MODE In a backup condition, both ends of the circuit must  
detect backup conditions before backup is acti-  
vated. One DBU is set to ORIGINATE and the other to  
ANSWER Upon a network failure, only the Origi-  
.
nate DBU initiates backup by dialing the Answer  
end. Once called, the  
goes into backup  
Answer DBU  
mode only if a backup condition is detected. This is  
ideal for controlling where calls originate.  
Choices: Disable, Originate, Answer  
BACKUP ON  
Selects the conditions that cause the Nx/DBU to  
initiate Backup.  
NET FAIL:  
Backup occurs on RED ALARM, YELLOW ALARM, BLUE  
ALARM, and LOS.  
NET DATA FAIL:  
/
Backup occurs on the same conditions as NET FAIL  
,
plus loss of data transitions on the data the Nx56/  
64 receives from the network.  
PATTRN VERIFY Selects whether or not the DBU will use its pattern  
generator and receiver to authenticate backup  
attempts. When the local and remote units are both  
Nx/DBUs, set to ENABLE; otherwise set to DISABLE.  
Choices: Enable, Disable  
BACKUP DELAY Selects the time allowed to elapse between the net-  
work going into alarm or no data transmissions  
and the backup beginning.  
Choices: 1 sec, 3 sec, 10 sec, 30 sec, 1 min, 5 min,  
10 min  
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Chapter 5. Configuration Menu  
Menu Items  
Description  
RESTORE DELAY Selects the time that elapses between the network  
going out of alarm or data and the backup call  
being taken down. If NEVER is selected, the user  
must deactivate the backup mode.  
Choices: 1 sec, 3 sec, 10 sec, 30 sec, 1 min, 5 min,  
10 min, never  
RETRY DELAY  
NUM RETRIES  
Selects the time between redialing the external  
DCE after failed dial attempts.  
Choices: 10 sec, 30 sec, 1 min, 5 min, 10 min  
Selects the number of times the DBU will attempt  
to redial if unable to connect.  
Choices: None, unlimited, 3 times, 10 times.  
BACKUP  
TESTING  
Selects the options for the automatic ISDN verifica-  
tion feature of the Nx/DBU. Verification of the  
backup circuit does not disrupt data on the T1.  
ACKUP EST:  
B
T
Selects the frequency of automatic backup circuit  
verification by the DBU.  
Choices: Manual, Hourly, Daily, Weekly  
EST OUR:  
T
H
Selects the hour of the day the Backup test will  
occur.  
Choices: 0-23  
EST AY:  
T
D
If Weekly Backup test is selected, selects which day  
to perform the test.  
Choices: Monday - Sunday  
WKEND  
LOCKOUT  
If no backup is desired from midnight Friday to  
midnight Sunday, set this selection to ON; other-  
wise set to OFF.  
Choices: On, Off  
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Chapter 5. Configuration Menu  
Menu Items  
Description  
ENABLE HR  
The hour backup will be enabled. Enter from the  
numeric keyboard.  
Choices: 0-23  
DISABLE HR  
The hour that the backup will be disabled. Enter  
from the numeric keyboard.  
Choices: 0-23  
For these items to function properly, verify that  
the time and date in the TSU are set correctly.  
See Chapter 6, Utility Menu, Time/Date  
section.  
TRAP IN DBU  
If traps are enabled , this parameter will send either  
a single trap upon going into a DBU session or  
send repeated traps for the duration of the DBU  
session.  
Choices: Single, Repeated  
0.2 DSX-1 Port Configuration (Port Config) Menu Items  
The menu items are:  
Menu Items  
FORMAT  
Description  
ORMAT sets the frame format for the base DSX-1  
F
interface.  
Choices: D4, ESF  
CODE  
ODE sets the line code for the base DSX-1  
C
interface.  
Choices: AMI, B8ZS  
YELLOW ALARM  
YEL ALARM enables and disables the transmitting of  
yellow alarms.  
Choices: Enable, Disable  
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Chapter 5. Configuration Menu  
Menu Items  
Description  
LINE LENGTH (FT)  
INE ENGTH provides selection of the proper  
L
L
output level for the base DSX-1 based on the length  
of the interface cable.  
Choices: 1-133 ft, 133-266 ft, 266-399 ft, 399-533 ft,  
533-655 ft, -7dB  
IN-BAND  
N BAND OOPBACK sets the base DSX-1 to accept or  
I -  
L
LOOPBACK  
reject in-band loopup or loopdown codes (per  
(INBAND LPBACK) ANSI T1.403 specification) which may be sent to  
the card over the DSX-1 interface. This loopback is  
a line loopback.  
Choices: Accept, Reject  
ROBBED BIT  
SIGNALING  
(ROB BIT SIGNL)  
This menu option is used to enable/disable  
robbed-bit signaling. Whenever the base DSX-1  
interface is connected to terminal equipment (i.e.,  
PBX/SW56) for voice or dialed data services, this  
option should be enabled. The only exception is  
when the terminal equipment is using a form of  
common channel signaling (i.e., PRI). For  
applications requiring robbed-bit signalling as well  
as a messaging channel (i.e., some proprietary PBX  
channels), the  
selection is provided.  
ON:DSOs 1-23  
Choices: OFF, ON: ALL DSOs, ON: DSOs 1-23  
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Utility Menu  
Chapter 6  
The UTILITY MENU tree displays and sets system parameters (see  
Figure 6-1 on page 6-2). This includes:  
setting the time and date,  
resetting all parameters to factory values, or  
re-initiating the unit.  
This menu also displays the unit software revision and the Unit  
ID setting.  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the scrolling direction to  
view additional menu items. At every level of the menu, press  
Cancel to return the system to the previous menu level. Press-  
ing Cancel repeatedly returns the system to the MAIN MENU.  
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Chapter 6. Utility Menu  
TIME: HH:MM:SS  
DATE: MM/DD/YY  
1) TIME/DATE  
(Returns all  
configurations  
2) FACT RESTORE  
to factory settings)  
3) SET PASSCODE  
4) UNIT ID  
NEW PASSCODE  
3) UTIL  
VERIFY PASSCODE  
5) SOFTWARE REV  
(Displays Current  
Software Revision  
6) PORT UTILITY  
7) ENET ADDRESS  
8) SERIAL NUMBER  
9) CMD MODE  
0.1 Nx56/64  
0.2 DSX-1  
(OPTION PORTS)  
Figure 6-1. Complete Utility Menu Tree  
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Chapter 6. Utility Menu  
Time/Date  
This menu option displays or edits the current time and date.  
The TSU 120 maintains the time and date during power-off  
conditions.  
If you want to...  
Do this...  
Record the entry and move to Press Enter after any numeric change  
the next editing position  
Move to a different field to edit Press Enter at the editing position  
without making any changes, or  
Use the Up and Down Arrow keys  
End the editing process  
Press Cancel  
Factory Restore (Fact Restore)  
This menu item restores the factory default settings for all unit  
parameters, including configured DS0 maps.  
Set Passcode  
Enter Passcode from Other Menus  
The Passcode prompt may make an unexpected appearance  
from other menu operations. This happens only when the unit  
is operating in the limited access mode, i.e., without an active  
passcode. The limited access mode may become active even if a  
passcode was entered as it does when there is no activity for  
ten minutes.  
If the unit is to be remotely accessed using T-WATCH Pro, a  
passcode must be entered. When managing a number of units,  
the passcode can be the same for all.  
The unexpected appearance of the Passcode prompt occurs, for  
example, while operating in a limited access mode and  
attempting to change the Data Rate, (2)CONFIG, 2)UNIT, 1)CTL PORT  
RATE, 1)DATA RATE. Use the Number Keys to enter the correct  
passcode and press Enter. The unit displays  
.
ACCESS GRANTED  
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Chapter 6. Utility Menu  
Pressing any key after entering a passcode causes the unit to  
return to the previous active menu. In this case it returns to  
2)CONFIG, 2)UNIT, 1)CTL PORT RATE, to permit changing the data  
rate.  
Change/Set a Passcode  
The passcode can be changed or set at any time or eliminated  
altogether through the Utility Menu item 3)SET PASSCODE. This  
procedure requires the current passcode (if one is established)  
for operation.  
The passcode can only be entered by using numbers. After  
entering the desired passcode, press Enter.  
Set a null passcode at the 3)SET PASSCODE menu by pressing  
Enter without any numbers. This sets a null passcode and  
grants unlimited access.  
Passcode Automatic Time-out  
For added security protection the unit is equipped with an  
automatic time-out for operation with the password. After ten  
minutes of inactivity, the unit reverts to limited access opera-  
tion. To make changes in the configuration, the passcode can be  
reentered.  
If the passcode number is lost, contact ADTRAN Customer Ser-  
vice for assistance.  
No Passcode Desired  
At the NEW PASSCODE prompt (in the Set Passcode menu), press  
Enter without any numerical entry. The system nullifies the  
need to enter a password for subsequent use and proceeds to  
the UNIT ID prompt.  
Unit ID  
This menu is used to access the current Unit ID setting. View-  
ing is available in limited-access mode. Editing or changing the  
Unit ID requires the use of a password, as in editing mode. Unit  
identification numbers must be between 2 and 999.  
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Chapter 6. Utility Menu  
If an out-of-range number is entered, the unit assumes the  
upper limit number of 999.  
Set the Unit Identification  
In the UNIT ID MENU (item 4) under the UTIL MENU, enter any  
value between 2 and 999. The number 1 is reserved for the PC.  
Press Enter to record the Unit ID number and to establish its  
availability for operation by remote control. The unit proceeds  
to the SET CONTROL PORT prompt.  
No Unit ID Desired  
Press Enter at the UNIT ID PROMPT without entering any numbers.  
The unit will not be able to be operated by remote control.  
Software Revision (Software Rev)  
This menu provides access to the display of the current soft-  
ware revision level loaded into the base unit controller. This  
information is required when requesting assistance from  
ADTRAN Customer Service or when updates are needed.  
Press Cancel to exit.  
Port Utility (Option Ports)  
This menu provides access to the display of the current soft-  
ware information for each port installed in the unit. This infor-  
mation is required when requesting assistance from ADTRAN  
customer service or when updates are needed.  
ENET Address (TSU 120e only)  
Displays the Ethernet address for the 10BaseT port.  
Serial Number  
Displays the serial number of the unit.  
CMD Mode  
Reserved for factory use.  
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Chapter 6. Utility Menu  
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Chapter 7  
The EST ENU initiates different types of unit tests and dis-  
T
M
plays test results in the LCD window. The EST MENU contains  
T
four items (see Figure 7-1 on page 7-2).  
Executing tests will disrupt some of the normal operation. See  
individual menu items concerning tests before executing.  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the scrolling direction to  
view additional menu items. At every level of the menu, press-  
ing Cancel returns the system to the previous menu level.  
Pressing Cancel repeatedly returns the system to the  
AIN ENU.  
M
M
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Chapter 7. Test Menu  
LINE ON  
1) LOCAL LOOPBCK  
2) REMOTE LOOPBK  
PAYLOAD ON  
NO LOOPBACK  
ATT INBAND LLB  
ANSI FDL LLB  
ANSI FDL PLB  
FT1 LPBK  
1) NETWORK TESTS  
NO LOOPBACK  
ALL ZEROS  
QRSS ALL DS0S  
QRSS TST DS0S  
ALL ONES  
5) TEST  
3) TEST PATTERN  
NONE  
4) PATTERN RESULT  
(Displays results)  
Nx56/64 ( 0.1)  
(Displays results)  
2) RUN SELFTEST  
3) PORT TEST  
1) DTE LOOPBACK  
2) 511 PATTRN  
3) 511 RESULTS  
(displays results)  
4) DBU LOOPBACK  
5) DBU TEST  
TESTS OFF  
4) CANCEL TESTS  
INTERFACE TST  
FORCE BACKUP  
6) DBU DATA /CNTRL  
7) DBU TST RESULT  
(displays results)  
(displays results)  
This section applies to the TSU 120e only  
0.2 DSX-1  
1) LOOPBACK  
(OPTION PORTS)  
Figure 7-1. Complete Test Menu Tree  
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Chapter 7. Test Menu  
Network Tests  
Network tests control the activation of loopbacks and the initia-  
tion of data test patterns.  
Network tests are run on the Network Interface (NI). You can  
select three different test configurations to determine the type  
of loopback and the pattern to run. Test results display in the  
LCD window.  
Executing ETWORK ESTS will disrupt normal data flow  
N
T
unless only TST DS0S are selected for testing.  
Loopback Tests  
A number of different loopbacks can be invoked locally from  
the front panel, by T-Watch commands, or remotely by using  
special in-band codes (AT&T D4 network loop-up and loop-  
down codes). Additionally, the loopbacks can be remotely con-  
trolled by means of out-of-band commands by the T1 ESF FDL  
or from T-WATCH Pro by a modem connection.  
Network Interface Loopbacks  
Network interface loopbacks (see Figure 7-2 on page 7-4) affect  
the entire T1 data stream. There are two types of network loop-  
backs, LINE LOOPBACK and PAYLOAD LOOPBACK.  
Line Loopback  
Line loopback loops all of the received data back toward the  
network. The transmitted data is the identical line code that  
was received, including any bipolar violations or framing  
errors.  
Payload Loopback  
Payload loopback is similar to line loopback, except that the  
framing is extracted from the received data and then regener-  
ated for the transmitted data.  
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Chapter 7. Test Menu  
TSU 120  
NI CSU  
Secondary  
Interface  
DS1  
Payload Loopback  
Line Loopback  
Figure 7-2. Network Loopback Tests  
LOCAL LOOPBCK  
There are three available choices for setting the local loopback:  
LINE ON  
Activates the line loopback  
PAYLOAD ON  
Activates the payload loopback  
NO LOOPBACK Deactivates the loopback  
Using the arrow keys, select a setting and record it by pressing  
Enter. The unit returns the display of 1) LOCAL LOOPBCK and  
2)REMOTE LOOPBCK  
REMOTE LOOPBK  
This activates the same loopbacks as Local Loopback but at the  
far end. It uses either the inband loop-up code as specified by  
ANSI T1.403 for line loopback (ATT In-Band LLB), or the FDL  
as specified in ANSI T1.403 for payload and line loopback  
codes. The following options are available:  
ATT IN BAND LLB  
Activates the line loopback using  
inband code  
-
ANSI FDL PLB  
ANSI FDL LLB  
Initiates the transmission of an FDL  
payload loopup code toward the far  
end  
Initiates the transmission of an FDL  
line loopup code toward the far end  
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FT1 LPBK  
Initiates the transmission of a FT1  
loopback using the inband code  
described in T1.403.  
NO LOOPBACK  
Deactivates the loopback  
Remote Loopback can only be used with Fractional T1 if the ANSI  
FT1 LLB is selected.  
After a Remote Loopback option is selected, the TSU 120 veri-  
fies that the far end is actually in a loopback by checking for the  
receipt of a code looped back from the far end. Once the  
Remote Loopback type is selected, the LCD displays the loop-  
back progress by displaying LOOPING until loopback is verified.  
Test Patterns  
All Zeros  
Sends an all zeros pattern to the network.  
All Ones  
Sends an all ones pattern to the network.  
QRSS Pattern  
The QRSS pattern is commonly used to simulate real data in T1  
interfaces. This pattern can be assigned to appear in all DS0s or  
only in TST DS0s. When QRSS is set in all DS0s and one of the  
network loopbacks previously described is activated at the far  
end, a total end-to-end integrity check can be run without the  
need for any external test equipment. When QRSS is assigned  
to TST DS0s, an integrity check of the link can be run along  
with normal data flow. The TST DS0s are user-assigned as part  
of the DS0 Map. This sets the pattern for the test and initiates  
the transmission of the pattern. The test is terminated by select-  
ing NONE. The following patterns are available:  
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QRSS ALL DS S  
Generates a QRSS test pattern and  
inserts the pattern into all DS0s  
0
QRSS TST DS S  
Inserts a QRSS pattern in those DS0s  
mapped as TST in the currently active  
map (A or B)  
0
NONE  
Terminates pattern generation  
QRSS always runs at 64K/DS0.  
Example  
1. Select QRSS ALL DS0S by using the Arrow Keys.  
2. Press Enter to record the selection. The TSU 120 starts to gen-  
erate a QRSS test pattern and inserts the pattern into all  
DS0s.  
3. To end the test, select  
.
NONE  
PATTERN RESULT  
Displays the results of the test currently active. Leaving and  
returning to this menu item does not interrupt the test.  
Pressing injects errors into the test pattern. These errors are  
2
detected by the device performing the pattern check.  
ES  
The number of seconds with at least 1 bit error.  
BES  
The number of seconds with more than 1 bit error  
and less than 320.  
SES  
The number of seconds with more than 320 bit  
errors.  
SYNC  
Indicates if pattern sync is (yes) or is not (no) valid.  
An asterisk (*) indicates if pattern sync has been lost  
since the start of testing.  
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Press Shift+9 to clear results. The results are accumulated until  
the test pattern is set to NONE or  
.
CLEARED  
Using TST DS0s for testing can be very useful, particularly in  
Fractional T1 applications. You can run an end-to-end test on  
the Fractional DS0s by:  
1. Setting for Map B the TST in the same DS0 as used by Map  
A to receive data from an Nx/DBU port, and  
2. Looping the far end using a V.54 loopback code on the Nx/  
DBU port (DBU is TSU 120e only).  
In addition, a single DS0 can be used for continuous testing  
while other DS0s are passing normal data. This will also pro-  
vide an end-to-end check on the entire link. Set each end to  
send QRSS in TST DS0s (using 1 DS0) and occasionally view  
the results on the PATTERN RESULT menu selection.  
Run Self-test  
The self-test checks the integrity of the internal operation of the  
electronic components by performing memory tests and by  
sending and verifying data test patterns through all internal  
interfaces. Although actual user data cannot be passed during  
these tests, the self-test can be run with the network and DTE  
interfaces in place and will not disturb any external interface.  
The memory portion of the self-test automatically executes  
upon power-up. A full self-test can be commanded from a front  
panel menu or from T-WATCH Pro.  
In addition to the specified self-tests, background tests are also  
run on various parts of the internal electronics. These run dur-  
ing normal operation to confirm continued correct functioning.  
This menu selection is used to execute a full internal self-test.  
The results of the self-tests are displayed in the LCD. Upon  
invoking the command, the LCD displays  
SYSTEM SELF-TEST  
and the test LEDs are illuminated. Test failures are displayed in  
the LCD window.  
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The self-test consists of the following tests:  
OARD EVEL ESTS Each of the TSU 120 boards contain an  
B
L
T
on-board processor which executes a  
series of tests checking the circuitry  
on the board.  
RAM tests; EPROM checksum  
DS0 map tests  
On-board data path; sending a  
known test pattern through an on-  
board loop  
NIT EVEL ESTS  
Front panel LED verification  
Phase Lock Loop verify  
U
L
T
Board-to-board interface test  
A test pattern is sent from the controller through a loopback on  
all other boards and is checked on the controller. This verifies  
the data path, clocks, and control signals.  
If a failure is detected, note the failure number and contact  
ADTRAN Technical Support.  
Executing the self-test will disrupt normal data flow and prevent  
remote communication until it is complete.  
Port Tests  
The Port Tests menu is used to activate testing of specific data  
ports. It controls the activation of loopbacks and the initiation  
of data test patterns. Test results are displayed in the LCD win-  
dow.  
Port tests execution will disrupt normal data flow in the port be-  
ing tested.  
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Chapter 7. Test Menu  
Port Test Menu Items for 0.1 Nx56/64  
0.1 Nx56/64 is the base Nx interface. It offers the following test  
functions:  
DTE LOOPBK  
This initiates a loopback. The following options are available:  
PRT LCL  
The Nx port activates both a Local  
loopback (back toward the DTE) and a Port  
loopback when either is invoked.  
/
REMOTE  
OFF  
The remote loopback causes a V.54 code to  
be sent to the far end. The Nx at the far end  
activates a PORT/LCL loopback upon  
detection of the V.54 code.  
The loop is deactivated.  
The TSU 120 checks the remote loopback activation by detecting  
a proper response from the remote end. While waiting for the re-  
sponse, the display shows Looping. If successful, the display  
changes to LOOPED-UP. If unsuccessful, the display shows  
.
FAILED  
511 PATTERN  
This activates the generation of the 511 test pattern. The follow-  
ing options are available:  
ON  
The pattern check circuitry is enabled and a  
test started. The test is ended by selecting  
.
OFF  
OFF  
The pattern generation and check is  
disabled.  
511 RESULTS  
This displays the results of the 511 test indicated in the 511  
option. The results are in the form of the number of errored sec-  
onds. The error count can be cleared by pressing Clear (Shift+9).  
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DBU Loopback (TSU 120e only)  
ON  
Initiates a loopback from the DBU towards the  
external DCE  
OFF  
Terminates the loopback test  
DBU Test (TSU 120e only)  
This selection is used to force a backup to occur even if a  
backup condition does not exist.  
Test Name  
What it does...  
Turns off DBU tests  
TEST OFF  
FORCED  
BACKUP  
Forces a backup regardless of time-of-day  
lockouts or network conditions  
INTERFACE  
TEST  
Causes the external DCE to dial its stored  
number. After the connection is established,  
the DBU sends a test pattern to verify the  
backup network. This test does not disrupt  
data or the primary network.  
DBU DATA/CNTRL (TSU 120e only)  
Allows status of DCD and RI to be monitored while the  
INTERFACE TST is on. If the dial-up network is correctly config-  
ured and dialed up, there should be an asterisk (*) over DCD.  
DBU TST RESULT (TSU 120e only)  
When an interface test is active, this screen will show the total  
number of DATA BLOCKS received and the number of blocks  
with errors.  
Port Test Menu Items for 0.2 DSX-1  
Loopback  
Loopback activates the loopback function on the base DSX-1  
interface. The available loopbacks are Port Loopback (towards  
the NI) and Line Loopback (towards the PBX or other terminal  
equipment).  
Cancel Tests  
Use this menu selection to deactivate all active tests, including  
tests on option modules.  
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Telnet/Terminal Menus  
Chapter 8  
MAIN MENU  
The  
ERMINAL AIN MENU is the first menu displayed  
TELNET/T  
M
after the TELNET/Terminal session is established.  
See Figure 8-1. The default TELNET/Terminal password is  
ADTRAN.  
Only one TELNET/Terminal session may be active at a time.  
ADTRAN - TSU 120  
Password: XXXXXXXX  
Main Menu  
1) Status  
2) Config  
3) Util  
4) Test  
5) Remote Menu Access  
6) Management Config  
7) Flash Download  
8) Quit Session  
Figure 8-1. Telnet/Terminal Main Menu  
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Status, Config, Util, and Test Menu Options  
These menu items can access the same modified menus that  
you can access through the front panel. For detailed informa-  
tion on the available menu options, refer to the following sec-  
tions:  
Status Menu on page 4-1  
Configuration Menu on page 5-1  
Utility Menu on page 6-1  
Test Menu on page 7-1  
DS0 Maps Configuration Menu  
The Telnet/Terminal version of the DS0 maps configuration  
menu takes advantage of the 24-line VT 100 display. Upon  
entering this menu, the current Temp (temporary) map dis-  
plays and is followed by nine selections that you can use for  
configuring and reviewing map information. See Figure 8-2  
TEMP MAP  
DS0# PORT  
DS0#  
PORT  
1
2
3
4
5
6
7
8
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
9
10  
11  
12  
1) COPY MAP A TO TEMP MAP  
2) COPY MAP B TO TEMP MAP  
3) CREATE TEMP MAP  
4) REVIEWMAP A  
5) REVIEW MAP B  
6) REVIEW TEMP MAP  
7) EDIT TEMP MAP  
8) APPLY TEMP MAP TO MAP A  
9) APPLY TEMP MAP TO MAP B  
Figure 8-2. DS0 Temp Map  
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You can use the RROW EYS or Number Keys to move the cur-  
A
K
sor from one selection to another. Use the Enter Key to perform  
the action displayed in the LCD to the right of the cursor.  
Map Configuration  
Map configuration consists of the following steps:  
Step  
1
Action  
Initialize the Temp Map to one of three  
configurations:  
• Current Map A  
• Current Map B  
• All Idles  
This step is optional.  
2
3
Edit the Temp Map so that it reflects the desired  
map configuration.  
Replace the current DS0 Map A or Map B  
configuration with the Temp Map configuration.  
Initializing the Temp Map  
Upon entering the DS0 maps configuration menu, the Temp  
map reflects its last configured state.  
If you want to...  
Use these selections...  
initialize the displayed Temp Map to  
one of three configurations.  
1 - 3  
1 , 2  
initialize the Temp Map from its  
current configuration to one which  
reflects the currently stored Map A or  
B configurations, respectively.  
3
initialize the Temp Map to an all  
IDLE state.  
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Chapter 8. Telnet/Terminal Menus  
Editing the Temp Map  
To edit the Temp Map, follow these steps.  
Step  
1
Action  
To make additional changes to the Temp Map, use  
7 to enter the Temp Map edit mode.  
Selection  
Explanation:  
Upon entering this mode, the cursor location moves to DS0  
number one in the DS0 field of the Temp Map. The cursor  
may be moved from one DS0 to another using the Arrow  
Keys until it is located at the DS0 number whose assigned  
port needs to be changed.  
2
3
Press the Enter Key to move the cursor to the Port field  
Use the Arrow Keys to scroll through the possible port  
selections.  
4
5
Press the Esc Key to restore the previous port assignment  
and return to the DS0 field.  
Press the Enter Key to save the current selected port and  
return to the DS0 field.  
Explanation:  
Once the cursor is again located in the Temp Map DS0 field,  
pressing the Esc Key a second time, causes the cursor to  
return to  
below the Temp Map display.  
Selection 1  
Applying the Temp Map  
Once the Temp map reflects the desired configuration, use  
or to apply this configuration to Map A or B,  
Selections 8  
9
respectively.  
Reviewing Maps  
through give a summary of the number of ports  
Selections 4  
6
assigned to Map A, Map B, and the Temp Map, respectively.  
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Chapter 8. Telnet/Terminal Menus  
Remote Menu Access  
This displays TELNET menus for a remote device (may be  
another TSU/TDU or any other ADTRAN product that sup-  
ports TELNET via its EIA-232 chain port). After selecting this  
option, the user may:  
1. Choose to connect to a device entered in the Unit Access  
Table or  
2. Enter a Unit ID for a unit not listed in the Unit Access  
Table. CTRL + X terminates the session and returns to the  
TSU 120 Main menu.  
Management Configuration  
This menu sets management information, such as SNMP com-  
Unit Access Table  
This menu creates and edits the Unit Access Table. This table  
stores the Unit ID, Passcode, and Unit Type for units connected  
via chain ports or connected remotely to the TSU/TDU (see  
Unit Access Table on page 8-6). An entry in the table is required  
only to support proxy SNMP MIB access or polling. For MIB  
access, an entry is required only if the unit's passcode is not the  
same as the Default Unit Passcode, or the unit is a single port  
TSU standalone.  
It is not necessary to have an entry in this table for a remote unit  
in order to TELNET to it or forward SNMP traps from it. In the  
TELNET case, the Remote Menu Access menu is selected from the  
Main Menu and a Unit ID is entered which may or may not be in  
the Unit Access Table.  
Units accessed via T-WATCH Pro over TCP/IP use the Unit ID  
and passcode set by T-WATCH Pro running on the PC.  
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_____________________________Unit Access ____________________________  
Unit ID  
Passcode  
DEFAULT  
0033  
Type  
Polled  
No  
PollStatus  
UP  
20  
3
Standard  
Standard  
Yes  
6
0095  
TSU Stand Alone No  
8
0022  
Standard  
Yes  
UP  
1) Add New Unit  
2) Modify Unit  
3) Delete Unit  
4) Default Unit Passcode  
5) OK  
0022  
Figure 8-3. Unit Access Table  
Add New Unit  
This adds a new device to the unit access table.  
You must enter a device NIT  
,
ASSCODE, NIT YPE, and  
U
ID P  
U
T
OLLED LAG.  
P
F
Unit type can be TANDARD (which supports any TSU/TDU  
S
Multiplexer and the ISU 512) or  
TANDALONE (a single  
TSU S  
port TSU with no option card slot).  
You may select a passcode of to  
for each device or  
9999  
0
DEFAULT. This results in the default passcode being used  
(defined as 0022 in Figure 8-3).  
Traps are normally sent from the unit in alarm to the TSU  
120. For units in the Unit Access Table that are not chained  
directly to the TSU 120 but are managed over Inband or the  
FDL, traps are not automatically forwarded.  
Polling must be enabled on the TSU 120 for these units in or-  
der to receive Traps on the NMS. The TSU 120 can be con-  
figured to poll selected units for traps by enabling the  
polled option when adding or modifying a unit entry.  
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Modify Unit  
Allows NIT  
,
ASSCODE, EVICE YPE, and OLLED LAG to  
U
ID P  
D
T
P
F
be changed for an existing entry in the table.  
Delete Unit  
Deletes an entry in the table.  
Default Unit Passcode  
Sets the default passcode for all devices in the table that have  
passcodes set to DEFAULT, or for any unit not listed in the table.  
OK  
Returns to the Configure Agent menu.  
SNMP Read Community  
SNMP Read Community Name defaults to  
.
public  
NMSs using this community name have read access for all  
supported MIB objects, but do not have the ability to change  
MIB objects.  
This value must be set to the same value on both the TSU  
120 and the NMS (OpenView®, etc.) in order for the NMS  
to have read access to MIBs supported by the TSU 120.  
This value must be a text string of 16 characters or less.  
SNMP Read/Write Community  
SNMP NMS using this community name have full read/  
write access to all supported MIB objects (defaults to pri-  
vate).  
This setting must be the same value on both the TSU 120  
and the NMS in order for the NMS to have read/write ac-  
cess to MIBS supported by the TSU 120.  
This value must be a text string that is 16 characters or less.  
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To access other units external to the TSU 120 (proxied units) us-  
ing an SNMP MIB browser, append a period and the Unit ID of  
the external device to the read only and read/write community  
name used in the MIB Browser; for example, public.4. See Appen-  
dix A, Understanding SNMP for more information.  
SNMP Trap Community  
This community name is used for all SNMP traps forwarded by  
the TSU 120. Traps received from daisy-chained units have a  
period and the Unit ID appended to the trap community name.  
Host 1 Trap IP Address  
The first of four entries for SNMP trap destination addresses.  
The TSU 120 forwards all SNMP traps to the IP address speci-  
fied in this entry. If the address is set to the default value of  
0.0.0.0, no traps are forwarded for this particular value.  
Host 2 Trap IP Address  
Defaults to 0.0.0.0. Second destination address for SNMP traps.  
Host 3 Trap IP Address  
Defaults to 0.0.0.0. Third destination address for SNMP traps.  
Host 4 Trap IP Address  
Defaults to 0.0.0.0. Fourth destination address for SNMP traps.  
System Name  
A text string that can uniquely identify an SNMP-managed  
node.  
System Contact  
A text string containing the name, phone number, etc. of the  
individual responsible for maintaining an SNMP-managed  
node.  
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Chapter 8. Telnet/Terminal Menus  
System Location  
A text string describing the physical location of an SNMP man-  
aged node (for example,  
).  
SECOND FLOOR PBX ROOM  
Auth. Fail Traps Sent  
(
: defaults to  
)
DISABLED  
DISABLED, ENABLED  
When enabled, the TSU 120 issues an SNMP trap when any  
SNMP request is received with an invalid community name.  
Can be used for security purposes.  
Poll Link Status Traps Sent  
(
,
, defaults to  
). When enabled,  
DISABLED  
DISABLED ENABLED  
the TSU 120 sends an SNMP trap whenever a device config-  
ured to be polled fails to respond. When the device begins  
responding to polls, a poll link-up trap is sent. The format of  
the traps are defined in the agent MIB.  
Ping IP Host  
Allows the user to Ping a specific IP address.  
Telnet/Terminal Timeout  
The TSU 120 terminates a TELNET or Terminal session if no  
activity is detected for this length of time. Only one TELNET or  
Terminal session may be active at one time. This timeout pre-  
vents an unattended session from blocking interactive access to  
the agent. The default value is five minutes.  
Telnet/Terminal Password  
This option allows modification of the password required for  
entry into a TELNET or Terminal session. The default value is  
ADTRAN.  
Exit  
Returns to the TSU 120 Main menu.  
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Chapter 8. Telnet/Terminal Menus  
Flash Download  
The TSU 120 uses flash memory that allows software updates  
via the EIA-232 port. This menu selection allows you to manu-  
ally perform a flash download using  
.
is  
XMODEM T-FLASH  
also available to automate this process.  
Quit Session  
Terminates the TELNET/Terminal session.  
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Understanding SNMP  
Appendix A  
ABOUT SNMP  
As local area network (LAN) environments became standard-  
ized over the past ten years, multi-vendor equipment grew  
with competition. It became necessary to manage the various  
vendor equipment from a single control console. Thus, the  
SNMP emerged as the standard for managing commercial  
TCP/IP networks.  
The term  
broadly refers to the message protocols used to  
SNMP  
exchange information between the network and the managed  
devices, as well as to the structure of network management  
databases.  
Basic Components  
SNMP has three basic components:  
,
,
Network Manager Agent  
and  
.
MIB  
Network Manager  
This is a control program that collects, controls, and presents  
data pertinent to the operation of the network devices. It  
resides on a network management station.  
Agent  
This is a control program that responds to queries and com-  
mands from the network manager and returns requested infor-  
mation or invokes configuration changes initiated by the  
manager. It resides in each network device.  
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Appendix A. Understanding SNMP  
MIB  
This is an index to the organized data within a network device.  
It defines the operating parameters that can be controlled or  
monitored. When requesting the network manager to retrieve  
or modify a particular piece of information about a network  
device, the network manager transmits the request to that net-  
work device. The agent in that device interprets the incoming  
request, performs the requested task, and sends its response to  
the network manager. The network manager collects all the  
data from the various network devices and presents it in a con-  
sistent form.  
Commands  
Using SNMP Version 1, the network manager can issue three  
types of commands:  
,
, and  
GetRequest GetNextRequest  
.
SetRequest  
GetRequest  
This command retrieves a single item or the first in a series  
from a network device.  
GetNextRequest  
This command retrieves the next item in a series from a net-  
work device.  
SetRequest  
This command writes information to a network device.  
Messages  
The network device issues two types of messages:  
and  
.
GetResponse  
Trap  
GetResponse  
This message is the response to a network manager  
or  
command.  
GetRequest GetNextRequest  
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Trap  
This is an unsolicited message issued by a network device to  
report an operational anomaly or an alarm condition to the net-  
work manager.  
These messages are typically encased within informational  
packets and transported over the LAN or WAN (wide area net-  
work).  
TSU 120 SNMP Access  
By default, SNMP MIB Browser access to the TSU 120 IP  
address with the configured community names, accesses the  
host. The TSU 120 can also act as an SNMP proxy agent for  
external units. To access MIB variables on externally chained  
devices, append a period and the Unit ID of the device to the  
Read and Read/Write community names. For example, if the  
Read community name configured in the TSU 120 is  
,
public  
specifying  
as the community name in the SNMP MIB  
public.3  
Browser allows reading SNMP MIB variables from externally  
chained unit with a Unit ID of .  
3
If the external unit's passcode is not the default, an entry must  
be added to the Unit Access Table for  
access. See  
SNMP MIB  
the Unit Access Table on page 8-5, for more information. How-  
ever, SNMP traps for the unit can be forwarded without the  
entry.  
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Appendix A. Understanding SNMP  
SNMP Trap Configuration  
Traps received by the TSU 120 from external units and the host  
unit are converted into SNMP traps and forwarded to the con-  
figured NMS. The source of the trap is uniquely identified at  
the NMS by a combination of the IP address of the TSU 120,  
and the Unit ID of the sending device. The Unit ID is present in  
the trap packet appended to the end of the trap community  
packet name, for example  
. It is also included as an  
public.4  
Octet String variable (  
) in the trap packet as  
adProdPhysAddress  
defined in the individual product MIBs. The latest versions of  
the product MIBs, by default, display the appended trap com-  
munity name in their descriptions.  
Typical steps required for Management Station trap configura-  
tion are loading the device specific MIBs and loading or creat-  
ing device-specific Trap Definition Files. The current product  
MIBs contain keywords embedded in comments that can be  
used by some network management platforms to automatically  
generate Trap Definitions. Otherwise, the descriptions may be  
used as a template for Trap Definitions.  
If individual option card port and slot identification is  
required, it is present in the four- byte  
field  
adProdPhysAddress  
of the trap packet. The first two bytes are the Unit ID of the  
base controller (least significant byte first). The next two bytes  
are port and slot number. This field is the second object identi-  
fier in all traps sent from TSU/TDU products. For traps from  
the ISU 512, the Unit ID is the first object identifier. See the  
product MIBs for more information  
Definitions for Poll Link Up/Down traps are included in the  
TSU 120e MIB file:  
.
TSU 120e.MIB  
The TSU 120 and TSU 120e share the same MIB.  
A-4  
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Appendix A. Understanding SNMP  
SNMP MIB BROWSER CONFIGURATION  
The following steps, shown in Table A -1 are required to config-  
ure Network Manager MIB variable access through the TSU  
120:  
Table A-1. How to Configure Network Manager MIB  
Step  
1
Action  
Load the desired product MIBs on the network management station.  
If, for example, the administrator is managing TSU 120 and ISU 512  
devices, load  
, and  
.
TSU 120.MIB, ISU512.MIB  
RFC1406.MIB  
2
Create device entries in the NMS database for all units that are to be  
managed through the TSU 120. The host unit should be configured as  
the proxy agent for the external units. The IP address or host name  
used for the proxy designation is that of the TSU 120.  
3
4
Set community names in the device’s entries for external units to the  
TSU 120 community name with the device Unit ID appended as  
defined in the previous section TSU 120 SNMP ACCESS on page A-3.  
Set the device timeout for all device entries in the NMS device data-  
base to five seconds, including the host unit.  
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Appendix A. Understanding SNMP  
SNMP MIB Files Supported by the TSU 120  
Standard MIBs  
MIB-II (RFC-1213)  
DS1 T1/E1 MIB (RFC-1406)  
Ethernet MIB (RFC-1643)  
(TSU 120e)  
ADTRAN Enterprise-specific MIBs  
ADTRAN Product MIB (ADTRAN.MIB)  
ADTRAN DS1 extensions MIB (ADS1.MIB)  
TSU/TDU Enterprise MIBs (TSU 120e.MIB)  
The standard MIB files are  
usually included with most  
The latest version of the ADTRAN enter-  
prise specific MIBs are available from the  
SNMP network management following sources:  
software.  
ADTRAN anonymous ftp site:  
ftp.adtran.com  
By dial-up from the BBS:  
256 -963-8169)  
ADTRAN web site:  
http://www.adtran.com  
A-6  
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Understanding TR-08  
Appendix B  
The TSU 120 chassis functions as a Remote Terminal in Digital Loop  
Carrier and as Integrated Digital Loop Carrier Systems as described in  
TR-TSY 000008. The TSU 120 supports SLC96 framing, Mode I opera-  
tion, ORB-13 and ORB-16 alarm formats, alarm reporting, and user-de-  
finable BPV threshold detection rate.  
A basic familiarity with DLC systems, IDLC systems and TR-TSY-  
000008 is assumed, but the following information will be useful:  
All received TR-TSY-000008 specific alarms are reported locally  
within the history feature of the TSU 120.  
When the DISABLE ALARMS option is selected, no alarms will be  
sent on the DLF, but received alarms will be reported locally in the  
history.  
Other alarms normally reported by the TSU 120 will also be placed  
in history.  
Each TSU 120 needs to be configured as the A SHELF, as it is provi-  
sioned as a separate entity.  
All alarms will refer to A SHELF when received from TSU 120.  
612020129L1-1  
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Appendix B. Understanding TR-08  
Table B-1 explains what conditions trigger alarms and how alarms are  
processed when received by the TSU 120.  
Alarm Conditions  
Table B-1.  
Name  
FELP  
Explanation  
When the TSU 120 receives a FELP alarm, it will loop  
the incoming data directly to the outgoing data. LINE  
ON is placed in history. The alarms and loopback are  
cleared when FELP is no longer received.  
Loss of Data  
The TSU 120 will send MINOR ALARM and the A  
SHELF ALARM for 2.5s when it quits receiving the  
data link on the T-Span. It will also report TR-08 DL  
Down in the history. After 2.5s, MAJOR ALARM, A  
SHELF ALARM are sent across the Data Link.  
OOF  
The TSU will send MINOR ALARM and A SHELF  
ALARM upon receiving an out-of-frame condition.  
TR-08 DL Down and RED ALARM are declared in  
history for severe framing errors. After 2.5s, MAJOR  
ALARM, A SHELF ALARM are sent across the Data  
Link.  
Loss of Signal The TSU 120 will send MINOR ALARM and the A  
SHELF ALARM for 2.5s when it quits receiving a  
signal from the far end. It will also report TR-08 DL  
Down and LOS in the history. After 2.5s, MAJOR  
ALARM, A SHELF ALARM are sent across the Data  
Link, and RED ALARM is declared in history.  
BPVs  
BPVs that are received at a rate greater than the  
threshold set under TR-08 options, will cause  
MINOR ALARM and A SHELF ALARM to be sent  
on the DL. If the BPVs remain above the threshold for  
2.5s, the TSU 120 will send MAJOR ALARM on the  
DL. No events are placed in history.  
Protection  
Line Switch  
The TSU will not respond to this alarm.  
B-2  
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Appendix B. Understanding TR-08  
TR-08 DS0 Conversion Table  
Table B-2 contains the mapping conversions needed to map voice ports  
to the TR-08 network.  
TR-08 DS0 Conversion Table  
Table B-2.  
DS0  
TR-08 Channel Number  
Port  
1
3
5
7
1
2
3
4
1.1  
1.2  
1.3  
1.4  
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Appendix B. Understanding TR-08  
B-4  
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Network Pinouts  
Appendix C  
WIRING  
Network Pinouts  
On the rear panel of the TSU 120 is an eight-position modular  
jack labeled NETWORK. This connector is used for connecting  
to the network. See Table C-1 for the pinout for the network con-  
nector.  
Connections  
The network connections are as follows:  
Connector type (USOC) RJ-48C  
Part number  
AMP# 555164-2  
Table C-1. Network Pinouts  
Pin  
Name  
Description  
1
R1 RXDATA-RING Receive data from the network  
2
3
T1 RXDATA-TIP  
UNUSED  
Receive data from the network  
4
R TXDATA-RING Send data toward the network  
5
T TXDATA-TIP  
UNUSED  
Send data toward the network  
6,7,8  
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Appendix C. Network Pinouts  
Control In/Chain In  
This is used as an EIA-232 port for connection to a computer or  
modem (Control In) or to another TSU 120 or TSU 100 (Chain  
In). See Table C-2 for the pinout for the control/chain-in connec-  
tor.  
Connections  
The chain-in connections are as follows:  
Connector type  
Part number  
RJ-48  
AMP# 555164-2  
Table C-2. Control In/Chain in Pinout  
Pin  
1
Name  
GND  
Description  
Ground - connected to unit chassis  
Request to send - flow control  
Data received by the TSU 120  
2
RTS  
3
RXDATA  
UNUSED  
TXDATA  
UNUSED  
CTS  
4
5
Data transmitted by the TSU 120  
Clear to send - flow control  
6,7  
8
C-2  
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Appendix C. Network Pinouts  
Chain Out  
This is used to connect to another TSU 120 chain-in connector.  
See Table C-3 for the pinout for the chain-out connector.  
Connections  
The chain-out connections are as follows:  
Connector type RJ-48  
Part number  
AMP# 555164-2  
Table C-3. Chain Out Pinout  
Pin  
Name  
Description  
1
GND  
Ground - connected to unit chassis. Connected to  
GND of next unit (pin 10).  
2
3
UNUSED  
TX DATA  
Data transmitted to chained units by the TSU 120.  
Connect to RX DATA of the next unit (chain-in pin  
3).  
4
5
UNUSED  
RX DATA  
Data received from chained units by the TSU 120.  
Connect to TX DATA of the next unit (chain-in pin  
5).  
6,7,8 UNUSED  
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Appendix C. Network Pinouts  
Nx56/64 DTE (V.35)  
See Table C-4 for the V.35 pinout Nx56/64 DTE pinout.  
Connections  
The DTE interface pinout is as follows:  
Connector type  
Part number  
V.35  
AMP# 92-4883-3-x  
Table C-4. V.35 Pinout - Nx56/64 DTE  
Pin  
Name  
101  
102  
105  
106  
107  
109  
Description  
Protective ground (PG)  
A
B
Signal ground (SG)  
C
Request to send (RTS) from DTE  
Clear to send (CTS) to DTE  
Data set ready (DSR) to DTE  
Received line signal detector (DCD) to DTE  
Local Loopback (LL)*  
D
E
F
L, J  
N, BB  
R
Remote loopback (RL)*  
104  
104  
115  
115  
103  
103  
114  
114  
113  
113  
Received data (RD-A) to DTE  
Received data (RD-B) to DTE  
RX clock (RC-A) to DTE  
T
V
X
RX clock (RC-B) to DTE  
P
Transmitted data (TD-A) from DTE  
Transmitted data (TD-B) from DTE  
TX clock (TC-A)  
S
Y
AA  
U
TX clock (TC-B)  
External TX clock (ETC-A) from DTE  
External TX clock (ETC-B) from DTE  
Test mode (TM) to DTE  
W
NN, K  
*(ignored by TSU 120)  
C-4  
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Appendix C. Network Pinouts  
Base DSX-1 (PBX)  
See Table C-5 for Base DSX-1 pinout connections for either-posi-  
tion Modular Jack Interface.  
Connections  
The modular jack interface pinout is as follows:  
Connector type RJ-48C  
Table C-5. Pinout Connectors for Modular Jack Interface  
Pin  
1
Name  
Description  
R1 TXDATA-RING Send data towards the DTE (PBX)  
2
T1 TXDATA-TIP  
UNUSED  
Send data towards the DTE (PBX)  
3
4
R RXDATA-RING Receive data from the DTE (PBX)  
5
T RXDATA-TIP  
Receive data from the DTE (PBX)  
6, 7, 8 UNUSED  
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Appendix C. Network Pinouts  
10BaseT (TSU 120e only)  
10BaseT is used to connect the TSU 120 to the local area net-  
work. See Table C-6.  
Connections  
The required wiring connections are:  
Connector type (USOC)  
Part number  
RJ-45  
AMP # 555164-1  
Table C-6. 10BaseT Ethernet (TSU 120e only)  
Pin Name (TO NIC)  
Pin1  
TX1  
TX2  
RX1  
RX2  
Pin 2  
Pin 3  
Pin 6  
C-6  
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System Messages  
Appendix D  
This appendix lists and defines the alarm and status messages  
that appear on the TSU 120 screen.  
ALARM MESSAGES  
Network Interface (NI)  
Red Alarm  
NI unable to frame align with incoming signal  
Yellow Alarm  
Remote alarm indication (RAI) being received  
from far end  
Blue Alarm  
Unframed all ones (1s) (AIS) being received at NI  
No signal detected at NI  
Loss of Signal  
Nx56/64 Interface  
The following messages indicate an alarm condition on the  
Nx56/64 card:  
Clock Slip  
Difference in frequency of the data clock at the  
network and DTE  
PLL Alarm  
Unable to achieve Phase-locked Loop on the  
clock provided by the network interface.  
Zeros Alarm  
No EXT Clock  
All zeros (0s) data being sent toward the network  
interface  
No external transmit clock at DTE (only appears  
if EXT CLK is selected)  
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Appendix D. System Messages  
DSX-1 (PBX) Interface  
The following messages indicate a condition on the Base DSX-1  
(PBX) interface:  
Red Alarm  
Not able to frame data coming to the DSX-1  
interface; sometimes referred to as out-of-  
frame (OOF)  
Yellow Alarm  
Blue Alarm  
Remote alarm indicator (RAI) being  
received by the DSX-1 interface  
Receiving unframed all 1s at the DSX-1  
interface [alarm indicator signal (AIS)]  
Loss of Signal  
No signal detected by the DSX-1 interface  
Status Messages  
Network Interface (NI)  
Payload On  
Line On  
Payload loopback activated  
Loopback off  
Loopback Off  
Factory Restore  
Power On  
All loopbacks deactivated  
Factory setting restored  
Unit powered on  
Self-Test  
Internal self-test performed  
TR-08 data link is down  
TR-08 data link is up  
TR-08 DL Down*  
TR-08 DL Up*  
Minor Alarm*  
Loss of sync, carrier los, BPV threshold  
exceded, or data link failure  
Major Alarm*  
Conditions for a minor alarm have contin-  
ued for greater than 2.5 seconds  
TR-08 alarm messages appearing in the alarm or history  
log have been received from the far end. If the NI detects  
one of the aove conditions, it will send the appropriate  
alarm (if enabled) to the far end but no message will ap-  
pear in the alarm or history log.  
D-2  
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Appendix D. System Messages  
Nx56/64 Interface  
The following messages indicate the status of the Nx56/64  
card:  
Loop Up  
Data is looped at both the network inter-  
face and DTE interface of the card  
Remote Loop Up  
511 Pattern On  
Loop Down  
Sending V.54 pattern in an attempt to  
loop up a remote device  
Sending 511 pattern towards the network  
interface  
Data is no longer looped back at the net-  
work interface or DTE interface  
511 Pattern Off  
No longer sending 511 pattern towards  
the network interface  
DSX-1 (PBX) Interface  
The following messages indicate the status of the DSX-1 inter-  
face:  
Frame Slip  
Indicates a Frame Slip has occurred on the  
DSX-1 interface; this is present in Alarm  
History only  
Line Loop Up  
Port Loop Up  
Loopdown  
Line loopback activated  
Port loopback activated  
Loopback has been deactivated  
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Appendix D. System Messages  
D-4  
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Specifications  
Appendix E  
ELECTRICAL SPECIFICATIONS  
T1/FT1 Interface  
T1 Line Rate  
Line Code  
Framing  
1.544 Mbits/s +/- 75bps  
Bipolar,RZ; AMI or B8ZS  
D4(SF), ESF, or SLC96  
FT1 Line Rate  
DS0 Channelized (multiple of 64 kbps)  
Transmit Timing Network, DTE, U-BR1TE Secondary NI,  
Normal (CSU) or Internal  
Input Signal  
Line-Build-Out  
Connector  
0 to -36 dB (DS-1)  
0, 7.5, 15, 22.5 dB, AUTO  
RJ45  
Test Jacks  
Bantam jacks: TX and RX (to Network) and  
MON  
Compatibility  
T1 Interface  
ESF Format Interface  
ESF Performance Monitoring TR. 54016 and T1.403  
Pub 62411  
TR. 194  
Approvals:  
FCC Part 15  
FCC Part 68  
UL 1950  
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Appendix E. Specifications  
Nx56/64 (V.35 Interface)  
DCE Interface  
Rates  
CCITT V.35 Synchronous  
56kbps - 1.536Mbps in 56k or 64k incre-  
ments  
Clock Options  
Tests  
Normal/Inverted and internal/external  
Local Loopback (bilateral)Remote Loop-  
back (V.54)  
Test Pattern  
511 with errored seconds display and  
error inject capability  
Data inversion  
Menu selectable  
1s Density Protection Force 1s to network after one second of  
consecutive zeros from DTE. User select-  
able (On/Off)  
CTS, DCD, DSR  
Connector  
Normal or Force On  
Winchester (V.35) female (on the Y cable)  
DSX-1 Interface  
Line Interface  
DSX-1 per ANSI T1.102  
DSX Receiver Input Range  
-10 dBdsx to +6 dBdsx  
1.544 Mbps  
Line Rate  
Capacity  
Line Codes  
Framing  
1 to 24 DS0s  
AMI, B8ZS  
ESF per ANSI T1.403 and  
AT&TPub. TR 54016, D4 per  
AT&T Pub. 62411  
Line Length  
Timing  
-7 dBdsx to 655 ft in 110 ft steps  
Supports network, secondary,  
and CSU timing modes  
Test Capability  
Line loopback, port loopback  
(internal toward mux)  
Connector  
Test Jacks  
RJ45  
RX MON, RX and TX (toward  
PBX)  
E-2  
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Appendix E. Specifications  
MANAGEMENT INTERFACES  
Chain In/Out Ports  
Interface Devices  
PC Serial Port, Modem or SLIP connec-  
tion to router  
Interface Type  
Data Rates  
EIA-232  
2400, 1200, 2400, 4800, 9600, 19200,  
38400  
Data Format  
Protocols  
EIA-232 N81  
T-WATCH/ADLP, ATEL/ADLP, TCP/  
IP/SLIP  
Connector  
RJ-45  
10BaseT Interface (TSU 120e only)  
Interface  
Rate  
IEEE 802.3 Compliant  
10 Mbps  
Connector  
Receiver  
Protocols  
RJ45  
accepts signal > 300mV  
Network:  
Transport: TCP, UDP  
Service: SNMP, TELNET, ICMP, ARP,  
PING, T-WATCH  
IP  
Option Slot Interface  
Interface  
ADTRAN proprietary, accepts standard TSU  
Option Modules.  
Chassis Specifications  
Height  
Width  
Less than 3.5 inches (will fit in a 2U rack  
mount opening)  
Two units will fit within a 19-inch rack  
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Appendix E. Specifications  
Environmental Specifications  
Input Power  
Fuse  
90-120VAC, 47-63 Hz  
0.6A, 250V  
Operating Temperature  
Max Power  
0 deg C to 45 deg C  
15 Watts  
Consumption  
Max Current  
0.2 A  
E-4  
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Numerics  
BPVs, alarm condition TR-08 B-2  
0.1 Nx56/64 Menu Items 4-5  
0.1 Nx56/64 Port Configuration (Port  
Config) Menu Items 5-18  
0.2 DSX-1 Menu Items 4-6  
10BaseT Interface (TSU 120e) 2-6  
C
Canadian Emissions Requirements  
Canadian Equipment Limitations viii  
Cancel Tests, test menu 7-10  
Chain In (PC), port 2-8  
Chain In/Chain Out 2-8  
Chain In/Out Ports, management  
10BaseT  
Interface,  
interface E-3  
10BaseT, pinouts C-6  
A
Active Alarms, list of 4-3  
ADTRAN PC Management Program  
3-10  
ADTRAN PC Program, T-WATCH  
Pro 3-10  
Chain Port Output 2-6  
change/set a passcode, how to 6-4  
Chassis Specifications, TSU 120 E-3  
Clear Port Alarm 4-7  
ADTRAN shipment, items included  
in 2-1  
ADTRAN Web Site iii  
ADTRAN Year 2000 (Y2K) Readiness  
Disclosure iii  
Affidavit for connection of CPE to  
1.544 MBPS and/or subrate digital  
services x  
Commands, SNMP network manager  
A-2  
electrical specifications E-1  
configuration applications, TSU 120  
1-4  
Affidavit  
Requirements  
for  
Configuration menu 5-1  
Control In/Chain In, pinouts C-2  
Create Temp Selection, how to 5-17  
Customer Service xiii  
Connection to Digital Services ix  
Agent, SNMP component A-1  
Alarm Conditions, TR-08 B-2  
alarm messages D-1  
D
B
data port identification 3-8  
Base DSX-1 (PBX), pinouts C-5  
DBU Configuration Menu Items 5-21  
Base DSX-1, clock source option 5-7  
61202129L1-1  
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Index  
default unit passcode, how to set in  
unit access table 8-7  
Delete Unit, how to in unit access  
table 8-7  
FELP, alarm condition TR-08 B-2  
Menu  
Structure,  
Dial backup, option module 1-3  
Display Only Data Fields, what they  
do 3-7  
DS0 Map A and DS0 Map B 5-15  
DS0 Map Example 5-16  
Front Panel Menu Tree, example 3-6  
front panel, descriptions of 3-1  
Full Drop and Insert, option module  
DS0 Temp Map 8-2  
DSU DP, option module 1-3  
DSU/DSX Status LEDs 3-4  
DSX-1 (PBX) Interface 2-6  
DSX-1 (PBX) Interface, system  
messages D-2  
SNMP command A-2  
GetRequest, SNMP A-2  
GetResponse, SNMP message A-2  
Grounding Instructions 2-2  
DSX-1 Interface E-2  
DSX-1 interface status message D-3  
DSX-1 Test Interface 2-6  
DSX1, option module 1-3  
DTE Timed Clock Source 5-8  
DTE timing, clock source option 5-8  
Initializing the Temp Map, how to for  
telnet/terminal menu 8-3  
internal timing,  
clock source option 5-9  
E
Editing the Temp Map, for telnet/  
terminal menu 8-4  
EIA-232 Connection, T-WATCH Pro  
3-11  
electrical specifications, TSU 120 E-1  
E-mail iii  
ENET Address, utility menu 6-5  
ENET Status 4-7  
Environmental Specifications E-4  
Exit Any Menu Field Operation Or  
Display, how to 3-8  
L
LOCAL LOOPBCK, test menu 7-4  
Loopback Tests, test menu 7-3  
Loss of Data, alarm condition TR-08  
B-2  
Loss of Signal, alarm condition TR-08  
M
Management Configuration, telnet/  
F
Factory Restore, utility menu 6-3  
Faxback Document Line, Y2K iii  
FCC Regulations v  
Management Interfaces E-3  
Map Configuration, how to for the  
telnet/terminal menu 8-3  
Map Exchange menu, configuration  
menu 5-14  
features, TSU 120 1-2  
Federal  
Commission  
Communications  
Radio Frequency  
Map in Use 5-14  
Interference Statement vi  
menu tree, configuration 5-2  
Index-2  
TSU 120e User Manual  
61202129L1-1  
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menu tree, status 4-1  
menu tree, test menu 7-2  
menu tree, utility 6-2  
MIB browser configuration,  
SNMP A-5  
MIB, SNMP component A-2  
Modify Unit, how to in unit access  
table 8-7  
Nx56/64 status message D-3  
O
OCU DP, option module 1-3  
OOF, alarm condition TR-08 B-2  
option module architecture,  
Module Status LEDS 3-4  
Option Slot Interface, management  
interface E-3  
N
Network (NI), configuration menu 5-  
3
Overview, TSU 120 1-1  
Network Interface Errors 4-3  
Network Interface Loopbacks, test  
menu 7-3  
Passcode Automatic Timeout, utility  
Network Interface port 2-5  
Network Manager MIB, how to  
configure A-5  
pattern result, test menu 7-6  
Network Manager, SNMP component  
A-1  
Port Status, signals monitored on data  
network menu items, configuration  
menu 5-3  
Port Test Menu Items for 0.1 Nx56/64,  
network performance reports 4-2  
Network Pinouts C-1  
Network Test Interface 2-5  
Network Tests 7-3  
Network Tests, test menu 7-3  
NI ERRORS 4-3  
Port Test Menu Items for 0.2 DSX-1,  
Port Tests, test menu 7-8  
port utility, option ports 6-5  
power connection, TSU unit 2-2  
NI PERF RPTS 4-2  
No Passcode Desired, utility menu 6-  
4
No Unit ID Desired, what to do if 6-5  
normal CSU timing, clock source  
timing 5-11  
Power-Up Procedure 2-9  
Product Matrix iii  
Protection Line Switch, alarm  
Nx56/64 (V.35 Interface) E-2  
Nx56/64 DTE (V.35), pinouts C-4  
Nx56/64 interface, status message D-  
3
QRSS Pattern, test menu 7-5  
Quit Session, for telnet/terminal  
session 8-10  
Nx56/64 Menu Items 5-18  
Nx56/64 Serial Interface 2-5  
Nx56/64 serial interface, TSU option  
module 1-3  
R
rear panel layout 2-4  
Receipt Inspection, of TSU unit 2-1  
61202129L1-1  
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Index  
REMOTE LOOPBCK, test menu 7-4  
remote menu access, telnet menus 8-5  
Remote Port, displaying status on  
control-in remote port 4-7  
repair and return information xiii  
Router, option module 1-3  
Router, PBX, Video Conferencing  
Applications 1-4  
Run Self-test 7-7  
telnet menus, displaying from  
remote device 8-5  
12  
telnet/terminal main menu 8-1  
Terminal Mode, configuring and  
monitoring TSU 120 3-12  
test jacks, in and out 2-6  
test jacks, T-Mon & in and out 2-6  
test menu tree 7-2  
Interface,  
electrical  
a
Run Self-Test, test menu 7-7  
S
Safety instructions xii  
secondary timing, clock source option  
5-10  
Test Pattern, test menu 7-5  
T-MON test jack 2-6  
TR-08 alarm conditions B-2  
TR-08 DS0 Conversion Table B-3  
Trap, SNMP message A-3  
1-4  
Self-Test, on power-up 2-7  
Serial Number, utility menu 6-5  
Set Chain Port input 2-8  
Set the Data Field, how to 3-7  
Set the Unit Identification 6-5  
Set Unit Identification, how to 2-7  
Set User Passcode, how to 2-7  
SetRequest, SNMP command A-2  
SNMP MIB Browser Configuration A-  
5
TSU 120 Interfaces 2-5  
TSU 120, overview 1-1  
SNMP Read Community 8-7  
SNMP Read/Write Community 8-7  
SNMP Trap Community 8-8  
SNMP TRAP CONFIGURATION A-4  
SNMP, about A-1  
TSU Option Modules 1-3  
T-WATCH Pro (ADTRAN PC  
T-WATCH Pro, EIA-232 connection  
3-11  
SNMP, Basic Components A-1  
SNMP, how to use 3-11  
SNMP, Message A-2  
T-WATCH Pro/LAN connection,  
Software Revision (Software Rev) 6-5  
status menu tree 4-1  
status messages D-1  
Status Messages, TSU 120 D-2  
Status, Config, Util, and Test Menu  
Options 8-2  
U
U-BR1TE, clock source timing 5-11  
U-BR1TE, option module 1-3  
unit access table, how to add a new  
unit 8-6  
Unit ID, utility menu 6-4  
utility menu tree 6-2  
V
View History 4-4  
Index-4  
TSU 120e User Manual  
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Index  
Voice Interface, option module 1-3  
Y
Y2K Compliance iii  
Y2K Project Line iii  
Y2K, Faxback Document Line iii  
W
Warranty and Customer Service xiii  
Wiring C-1  
61202129L1-1  
TSU 120e User Manual  
Index-5  
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Index  
Index-6  
TSU 120e User Manual  
61202129L1-1  
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Product Support Information  
Presales Inquiries and Applications Support  
Please contact your local distributor, ADTRAN Applications Engineering,  
or ADTRAN Sales:  
Applications Engineering (800) 615-1176  
Sales  
(800) 827-0807  
Post-Sale Support  
Please contact your local distributor first. If your local distributor cannot  
help, please contact ADTRAN Technical Support and have the unit serial  
number available.  
Technical Support  
(888) 4ADTRAN  
Repair and Return  
If ADTRAN Technical Support determines that a repair is needed, Technical  
Support will coordinate with the Customer and Product Service (CaPS) de-  
partment to issue an RMA number. For information regarding equipment  
currently in-house or possible fees associated with repair, contact CaPS di-  
rectly at the following number:  
CaPS Department (256) 963-8722  
Identify the RMA number clearly on the package (below address), and re-  
turn to the following address:  
ADTRAN Customer and Product Service  
6767 Old Madison Pike  
Progress Center  
Building #6 Suite 690  
Huntsville, AL 35807  
RMA # _____________  
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Download from Www.Somanuals.com. All Manuals Search And Download.  

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