Adtran TDU 120e User Manual

February 2001
61202156L1-1B

TDU 120e

User Man u al

Part Numbers

1202156L1
1202155L1

Trademarks:

Windows is a registered trademark of Microsoft Corp.
T- Watch is a trademark of ADTRAN, Inc.

OpenView

R

901 Explorer Boulevard

P.O. Box 140000

Huntsville, AL 35814-4000

Phone: [phone]

© 2001 ADTRAN, Inc.

All rights reserved.

Printed in USA.

The following conventions are used in this manual.

Notes provide additional useful information.

Cautions signify information that could prevent service interruption.

Warnings provide information that could prevent damage to
the equipment or endangerment to human life.

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 bathtub, wash bowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool.

2. Avoid using a telephone (other than a cordless-type) during an electrical
storm. There is a remote risk of shock from lightning.

3. Do not use the telephone to report a gas leak in the vicinity of the leak.

4. Use only the power cord, power supply, and/or batteries indicated in the
manual. Do not dispose of batteries in a fire. They may explode. Check with
local codes for special disposal instructions.

Save These Important Safety Instructions

iii

FCC regulations require that the following information be provided to the custom­er in this manual.

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 c ompatible modular jack which is Part 68
compliant. See installation instructions for details.

3. If your TDU 120e causes harm to the telephone network, the Telephone Com­pany may discont inu e your service temporarily. If possible, they will notify
you in advance. If advance notice is not practical, you will be notified as soon
as possible. You will be advised of your right to file a complaint with the FCC.

4. Your telephone comp any may make change s in its facilities, equi pment, oper­ations, or procedures that could affect the proper operation of your equip­ment. If they do , you w ill be given advance not ice so as to give you an
opportunity to maintain uninterrupted service.

5. If you experience trouble with the equipment TDU 120e, please contact ADT­RAN at [phone] for repair/warrant y in formation. The telephone com­pany may ask you to disconnect this equipment from the network until the
problem has been corrected, or until you are sure the equipment is not mal­functioning.

6. This unit c on tains no user serviceabl e parts.

7. The following information may be required when app lying to your local tele­phone compa ny for leased line facilities .

Service Type REN/SOC FIC USOC

1.544 Mbps -SF 6.0N 04DU9-BN RJ-48C

1.544 Mbps - SF and B8ZS 6.0N 04DU9-DN RJ-48C

1.544 Mbps - ESF 6.0N 04DU9-1KN RJ-48C

1.544 Mbps - ESF and B8Z S 6.0N 04DU9-1SN RJ-48C

8. The FCC recommends that the AC outle t t o which e qui pment r equir in g AC
power is to be in st alle d is provided with an AC surge ar rester.

iv

Affidavit Requirements for Connection to Digital Services

• An affidavit is required to be given to the telephone company whenever
digital terminal equip ment without encoded analog content and billing pro­tection is used to transmit digital signals containing encoded analog content
which are intended for eventual convers ion into voice band analog signal
and transmitted on the network.

• The affidavit shall affirm that either no encoded analog content or billing
information is be ing transmitted or that the output of the device meets Part
68 encoded analog conte nt or billing protection spe c ificat ion .

• End use/cus tomer will be responsibl e to file a n affidavit with the local
exchange carrier when connecting unprotected CPE to a 1.544 Mbps or sub­rate digital servic e .

• Until such time as subrate digital termin al equipment is registered for voice
applications, the affidavit requirements for subrate services are waived.

v

Affidavit for Connection of Customer Premises Equipment to 1.544 MBPS

and/or Subrate Dig i tal Se rvices

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 the responsibility for the operation and maintenance of the terminal equip­ment to be connected to 1.544 Mbps and/or __________________ subrate digital
services. The terminal equipment to be connected complies with Part 68 of the
FCC rules except for the encode d analog conten t a nd b illing protection specifi c a­tion. With respect to encoded analo g co nten t and billing protectio n:

( ) I attest that all operations asso ci ated with the e stablishment, maintenance and
adjustment of the digital CPE with respect to encoded analog content and billing
protection information continuously complies with Part 68 of the FCC rules and
Regulations.

( ) The digi tal CPE does not transmit digita l signal s co nta ining encod e d analog
content or billing informati on whic h is i n ten ded to b e decod ed wi thin the t ele­comm u ni ca tions n e t work.

( ) 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 analog content and
billing information has (have) been trained to perform these functions by success­fully having complet e d one o f th e f ollowing (check appropriate blocks):

( ) A. A training course provid ed by the m anu fa cturer/gran te e of the equi p ment
used to encode analog signals; or

( ) B. A training course provided by the customer or authorized representative,
using training materials and instructions provided by the manufacturer/grantee
of the equipment used to encode analog signals; or

( ) C. An independent tr aining course (e.g., tra de school or technical institution)

vi

recognized by the manufacturer/grantee of the equipment used to encode ana­log signals; or

( ) D. In lieu of the proceeding training requirements, the operator(s)/main­tainer(S) is (are) under the control of a supervisor trained in accordance with
_______________ (circle one) above.

I agree to provide ____________________ (telco’s name) with proper documen­tation to demonstrate compliance with the information in the preceding para­graph, if so requested.

_____________________ Signature

_____________________ Title

_____________________ Date

Subscribed and sworn to before me

This _________ day of ___________________, 20__

_______________________________________
Notary Public

My commission expires: _________________________

vii

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 limits are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, an d
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 resident ia l area is li kely t o c ause harm ful i nte r­ference in which c a se the us e r will be requ ired to correct the interference at his
own expense.

Shielded cable s must be used with t his u nit to ensure compliance wi th Clas s A
FCC limits.

Change or modifications to this unit not expressly approved by the par­ty respons ible fo r complia nce cou ld void the u ser’s auth ority to operat e
the equipment.

Canadian Emissions Requ irements

This digital apparatus does not exceed the Class A l imits for radio noise emiss ions
from digital apparatus as set out in the interference-causing equipment standard
entitled “Digital Apparatus," ICES-003 of the Department of Communications.

Cet appareil nu erique respecte les limites de bru its r a dio ele ctri qu es a pp lic abl es
aux appareils numeriques de Class A prescrites dans la norme sur le materiel
brouilleur: "Appareils Numeriques," NMB-003 edictee par le ministre des Com­munications.

viii

Canad i an Equipment Limitations

Notice: The Canadian Industry and Science Canada label identifies cert ified
equipment. This certification means that the equipment meets certain telecom­municati ons network protective, operational, and safety requir e ments. The
Depa rt ment doe s not g u a ra ntee th e eq u i pment w ill operate to the u s er’s sat i s ­faction.

Before installing this e quipment, us e rs should ensure that it is permissible to be
connected to the facilities of the local telecommunications company. The equip­ment must al so be inst alle d usin g an acceptab le me thod s of conn ect ion . In some
cases, the company’s inside wiring associated with a single line individual ser­vice may be extended by means of a certified connector assembly (telephone
extension cord). The customer should be aware that compliance with the above
limitations may not prevent de gradation of service in some situ a tions.

Repairs to certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier . Any repairs or alterations made
by the user to this equipment, or equipment malfunctions, may give the tele­comm un ications company cau s e t o re qu e s t the u s er to disconn e ct t he equ i p­ment.

Users should ensure for their own protection that the electrical ground connec­tions of the power utility, telephon e lines and internal metallic water pipe sys­tem, if present, are connected together. This precaution may be particularly
important in rura l areas.

Users should not attempt to make such connections themselves,
but should contract t he appropriate electric inspection authori­ty, or an electrician, 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 o ver loa ding. T he te rmination on a loop may con sist o f an y
combination of devices subject only to the requirement that the total of the Load
Numbers of all devices does not exceed 100.

ix

Limited Prod uct War ranty

ADTRAN warrants that for five (5) years from the date of shipment to Customer,
all products manufactured by ADTRAN will be free from defects in materials and
workmanship. ADTRAN also warrants that products will conform to the applica­ble specifications and drawings for such products, as contained in the Product
Manual or in ADTRAN's internal specifications and drawings for such products
(which may or may not be reflected in the Product Manual). This warranty only
applies if Cus tomer giv es ADTR AN writ ten noti ce of d efe cts du ri ng the war ra nty
period. Upon such notice, ADTRAN will, at its option, either repair or replace the
defective item. If ADTRAN is unable, in a reasonable time, to repair or replace
any equipment to a condition as warranted, Customer is entitled to a full refund
of the purchase price upon return of the equipment to ADTRAN. This warranty
applies only to the origina l purchaser an d is not transfer abl e with out ADTRAN's
express written permission. T his w a rr anty becom e s null and void if Custom e r
modifies or alters the equipment in any way, other than as specifically authorized
by ADTRAN.

EXCEPT FOR THE LIMITED WARRANTY DESCRIBED ABOVE, THE FOREGO­ING CONSTITUTES THE SOLE AND EXCLUSIVE REMEDY OF THE CUS­TOMER AND THE EXCLUSIVE LIABILITY OF ADTRAN AND IS I N LIEU OF
ANY AND ALL OTHER WARRANTIES (EXPRESSED OR IMPLIED). ADTR AN
SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, INCLUDING (W ITH ­OUT LIMITATION), ALL WARRANTIES OF MERCHANTABILITY AND FIT­NESS FOR A PAR T ICULAR PURPOSE. SOME STATES DO NOT ALLOW THE
EXCLUSION OF IMPLIED WARRANTIES, SO THIS EXCLUSION MAY NOT
APPLY TO CUSTOMER.

In no event will ADTRAN or its suppliers be liable to Customer for any inciden­tal, special, punitive, exemplary or consequential damages experienced by either
Customer or a third party (including, but not limited to, loss of data or informa­tion, loss of profits, or loss of use). ADTRAN is not liable for damages for any
cause whatsoever (whether based in contract, tort, or otherwise) in excess of the
amount paid for the item. So m e states do no t allo w the lim ita tion or exclu sion of
liability for incidental or consequential damages, so the above limitation or exclu­sion may not apply to Customer.

x

Customer Service, Product Support Information , and Tra ining

ADTRAN will replace or repair this product w ithin fiv e yea r s from the d ate of
shipment if the product does not meet its published specification, or if it fails
while in serv ice.

A return material authorizatio n (RMA) is req uired prior to returning equipment
to ADTRAN. For service, RMA requests, training, or more information, see the
toll-free contact numbers given below.

Presales Inquiries an d Applications Support

Please contact your local distributor, ADTRAN Applications Engineering, or
ADTRAN Sales:

Applications Engineering [phone]
Sales [phone]

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

The Custom Extended Services (ACES) program offers multiple types and levels
of service plans which allow you to choose the kind of assistance you need. For
questions, call the ACES Help Desk.

ACES Help Desk [phone]

xi

Repair and Return

If ADTRAN Technical Support determines that a repair is needed, T echn i cal Sup­port will coordinate wit h the Custom and Product Service (CAPS) department to
issue an RMA number. For information regarding equipment currently in house
or possible fees associa te d with repair, c o ntac t CAPS di rectly at the following
number:

CAPS Department [phone]

Identify the RMA number clearly on the package (below address), and return to
the followin g a ddress:

ADTRAN Customer and Product Service
901 Explorer Blvd.
Huntsville, Alabama 35806

RMA # _____________

Training

The Enterprise Network (EN) Technical Training offers training on our most popu­lar products. These courses include overviews on product features and functions
while covering app licat ions of ADTRAN's product lines. ADTRAN provides a vari­ety of training options, including customized tra ining and courses taug ht at our fa­cilities or at your site. For more information about training, please contact your
Territory Manager or the Enterprise Training Coordinator.

Training - phone [phone], ext. 7500
Training - fax [phone]
Training - email [e-mail]

xii

Table of Contents

List of Figu re s ............ .. .......... .. .......... .. ... .......... .. .......... .. .......... .. ... ......... ... .......... .. ... xxi

List of Tab l es .......... ... ......... ... .......... .. .......... .. ... ......... ... ......... ... .......... .. .......... .. ... ...xxiii

Chap ter 1. Introduction ......................................... ................................................. 1-1

TDU120e Overview ..................................................................................................1-1

Standard Features in the TDU 120e.................................................................1-2

TDU O ption Modules............... ........................................... .............................. 1 -3

Optio n Module A rchitecture ........................... ............................................ ..... 1-4

TDU 120e Configuration Applicati ons .................................................................. 1-5

Router, PBX, Video C on f er e n c i ng Ap p lication.. .. .......... .. .......... .. .......... ........ 1-5

Chap ter 2. Installation ............................................................ ................................ 2-1

Unpack, Inspect, Power Up ....................................................................................2-1

Receip t I n s p e c ti o n ........... .......... .. .......... ......... ... .......... ......... ... ......... .......... ... ..... 2-1

ADTRAN Shipments Include........................................................................... 2-1

Customer Provides............................................................................................. 2-1

Power Connection.............................................................................................. 2-2

Groun ding Instruct ions ............. .......................... ............................................ ........ 2-2

Rear Panel Layout .................................................................................................... 2-4

TDU 120e Interfaces...........................................................................................2-5

Network Inte rface ... ............................................ ....................................... 2-5

Nx56/ 6 4 Se ri a l Inte r f ac e .............. .. ... ......... ... ......... ... .......... .. .......... .. ... ..... 2-5

DS-1 ( PBX) In terface .................. ........................... .......... ......... .......... ........ 2-5

Control Port Input .................................................................... .................. 2-5

Craft Port ........... ......... ... ......... .......... ... ......... ... ......... .......... ... ......... .......... .. . 2-6

Chain Port Output ..................................................................................... 2-6

10BaseT Interface ....................................................................................... 2-6

External Alarm Connector ........................................................................ 2-6

Power Up Testing .....................................................................................................2-7

Self-Test ............................................................................................................... 2-7

Board Level Tests ................................................................................ 2-7

RAM and EPROM Tests ....................................................................2-7

61202156L1-1 TDU 120e User Manual xiii

Table of Contents

Unit Leve l Tes ts ....... .. .......... .. .......... ... ......... ... .. .......... .. .......... .. .......... . 2-7

Board-to-Board Interface Test ...........................................................2-7

Initialization ........................................................................................................ 2-8

Set Use r P as s co de ...... .. ... .......... .. .......... .. .......... .. .......... .. ... .......... .. .......... .. . 2 -8

Set Unit I d e n t if i ca t ion ...... .......... .. .......... ... ......... ... ......... ... .......... .. .......... .. . 2 -8

Set Cont rol Port ....... .. .. .......... ... ......... ... ......... ... .. .......... .. .......... ... ......... ... .. . 2 -8

Chain In (PC) ..............................................................................................2-8

Chain In/Chain Out .................................................................................. 2-9

Normal Power-Up Procedure.........................................................................2-10

Chap ter 3. Operation...............................................................................................3-1

Menu Fe atures ....... ........................................... ........................... ..............................3-1

Sample Terminal Screen with TDU 120e Menu .....................................3-2

General Menu Operation ..................................................................... .............3 -2

Select a n d Activat e a Menu It e m .. .......... .. .......... ......... ... .......... ......... ... ...3 -2

Exit Any Menu Field Operation Or Display ..........................................3-4

Data Port Identifica tion ........... ... ......... .......... .......... .......... ......... ... ......... .......... . 3 -5

Menu Structure ............. ............................................ ........................... ...............3-6

Telnet/Terminal Main Menu ...................................................................3-6

Menu O ptions .. .......... ............................................ .....................................3-7

Status . .... ........ ....... ....... ..... ....... ........ ....... ..... ....... ....... ........ ..... ....... ....... .3 -7

Config (Configuration ) ............................................................ ...........3-7

Util (Utilities) .......................................................................... .............3-7

Test ........................................................................................................ 3-7

Remote Menu Access ........................... .......... .......................... ...........3 -7

Manag e m e n t Configu ration ..... .......... .. .......... .......... .. .......... .......... .. . 3 -7

Flash Download ........................................ ..........................................3-7

Quit Se ss i o n . .. ... ......... ... ......... ... .......... .. .......... .. .......... .. .......... .. ... ........3-7

Front P a nel ............. ......... ... ......... ... .......... ......... ... ......... .......... ... ......... .......... .. .......... . 3 -8

ACO Switch......................................................................................................... 3-8

Remote LED .............................. .......... ........................... ......... ........................... . 3 -8

Craft Port ......... ......... ... ......... .......... ... ......... .......... .. .......... ... ......... .......... .. .......... . 3 -8

Network Mo nitor Jack ....................... ............................................ ....................3-8

DS1 Monitor Jac k..... .................... ......... .......... .......... .......... ......... .......... .......... ...3 -9

Network Sta tus LEDs................................................. ........................................3-9

Port S t at u s LEDs.............. ......... ... ......... .......... ... ......... .......... .. .......... .......... ......3-10

Port 1 .1 Op tion Ca rd Monito r Jac k s ............... ......... .......... .. .......... .......... ......3-10

Alternate Methods Of Control ...................................... ........................... .............3-11

T-Watch Pro (ADTRAN PC Program) ........... ........................................... ....3- 11

Settin g up the TDU 120e to Work O ver a LAN ................................... 3 -11

Setting up the TDU 120e to Work Over an EIA-232 Connection ......3-12

SNMP ....................................................................................................................... 3-12

xiv TDU 120e User Manual 61202156L1-1

Table of Contents

Chapter 4. Status Menu................................................ .......................................... 4-1

Netw ork Performanc e Reports.................... .................................................... 4-2

Network Inte rface Errors ................................... ............................................ ... 4-3

Activ e Alarms ........ .......... ............................................ .......................... ............. 4-3

View History ....................................................................................................... 4-4

Port S t at u s .. .. .......... ... ......... .......... .. .......... .......... .. .......... .......... .. .......... .......... .. ... 4-4

Nx/DBU (0.1) Menu Items ....................................... ................................ 4-4

DTE Data/Clock ................................................................................. 4-4

DTE Status ........................................................................................... 4-5

DTE Port Rate ...................................................................................... 4-5

DBU Data/CNTRL ............................................................................. 4-5

DBU Control ........................................................................................ 4-5

DBU Status ........................................................................................... 4-5

DS-1 ( 0 .2 ) Menu Ite ms (DS-1 Er ro rs ) ...... .. .......... .. ... .......... .. .......... .. ........ 4 -6

Remote Port............... ......... .......... .......... ......... ........................... ......................... 4-6

Clear Port Alarm ................................................................................................ 4-6

Ethern e t St a tu s.. ... ......... ... .. .......... .. .......... ... ......... ... ......... ... .. .......... .. .......... ... ..... 4 -7

Chap ter 5. Configuration Menu ........................................................................... 5-1

Network (NI) .... ............................................ ........................................... .................. 5-3

Network (NI) Menu Items ................... .......................... ................................... 5-3

FORM AT ...... ....... .......... .......... ......... ........ ......... .......... ....... .......... ........ 5-3

CODE .. ..... ....... ........ ....... ..... ....... ....... ........ ..... ....... ....... ....... ..... ........ ..... 5-3

YELLOW ALARM .............................................................................. 5-3

TRANSMIT PRMS .............................................................................. 5-3

TIMING M O D E .. .......... .. .......... ... ......... ... .. .......... .. .......... .. .......... ... .. ... 5-3

TDU 120e Clock Source s ......... ............................................................. ..... 5-4

Network Tim ed .......................................................... ......................... 5-4

Based DS-1 ........................................................................................... 5-5

Base DTE Timing .. ......... .......... .......... .......... ......... ........................... ... 5-5

Internal Timing .................................................................................. . 5-6

Second ary Timing . ........................................... ................................... 5-6

Normal (CSU) Timing ........... ............................................................. 5-7

U-BR1T E ....... .......... ......... .......... ....... .......... .......... .......... ......... ........ ..... 5 -7

Set Line Bui ldout .......... .. .......... ... .. .......... .. .......... .. ... ......... ... .......... .. .. . 5-7

Inband Loopback ................................................................................ 5-8

Bit St uf f i ng . ......... .......... .. .......... .......... .. .......... .. .......... .......... .. .......... ...5-8

Unit Me nu ......... ... .. .......... .. .......... .. .......... ... ......... ... .. .......... .. .......... .. .......... ... ..... 5 -8

Control Port Rate ......................................... ....................................... 5-8

Traps ..................................................................................................... 5-8

Access ................................................................................................... 5-8

Init Modem ......... ... ......... .......... ... ......... ... ......... .......... ... ......... .......... .. . 5-9

61202156L1-1 TDU 120e User Manual xv

Table of Contents

Control Port .........................................................................................5-9

IP Address ...................................... ......................................................5-9

Subne t M a s k .......... .......... ... ......... .......... .. .......... .......... .. .......... .......... .. . 5-9

Defau lt R outer ........... ... ......... ... .......... .. .......... .. .......... .. .......... .. .......... . 5-9

SLIP Rate ....................... ........................................... ............................5-9

SLIP Flow CTL ......... ........................... .......................... .....................5-10

Proxy Traps .................................... ........................................... ......... 5-10

Map E xchange............. .......................... ........................... ........................... ......5-10

OFF . .......... .......... ......... ........ ......... .......... .......... ....... .......... ......... ......... 5 -10

AUTO .. .. ..... ..... ..... .. ..... ..... ..... .. ..... ..... ..... .. ..... ..... ..... .. ..... ..... ..... .. ..... .... 5- 10

Map In Use ...... .......................... ........................... ........................... ......... .........5-11

DS0 Ma ps ......... ................... .......... ......... .......... .......... .......... ......... .......... .......... . 5- 11

DS0 Ma p s Conf i gu ration Me n u .... .......... ......... ... ......... .......... .......... ......5-11

Creating a DSO Map ................................................................................5-12

Initializing the Temp Ma p ...... ......... ............................................ ...........5-12

Editing the T emp M ap ..................................... ........................... .............5-13

Applying the Temp Map ....................... ........................... .......................5-13

Copying Map ...... .......................... ............................................ ................5-14

Reviewing Map s .............................. ............................................ .............5 -14

Copy Map A (B) to Temp Map ....................................... ................ 5-14

Create Temp Map ............... .......... ......... .......... .......... .......................5-14

Review Map A(B) ..............................................................................5-15

Review Temp Map ............................................................................5-15

Edit Tem p M a p ........ .. .......... .. ... .......... .. .......... .. ... ......... ... ......... ... ......5 - 15

Apply Te mp to Map A(B) ............................... ................................. 5-15

Port Configu ra tion (Po rt Config ) ..... .......... ......... ... .......... .. .......... ......... ... ......5-15

Nx/DBU (0.1) Menu Items ........................ ............................................ . 5-15

Nx/DBU (0.1) .......... ............................................ ..............................5-15

DSO Rate ............................................................................................5-16

TX CLK CNTRL . .......... .. .......... .. .......... .......... .. .......... .. .......... .......... .5-16

Data ..................................................................................................... 5-16

CTS ........... .............. ............... ...................... .............. ...................... .... 5-16

DCD ....................................................................................................5-16

DSR . ... ......... ... ......... ... .. .......... .. .......... ... ......... ... ......... ... .. .......... .. ......... 5- 16

“O” INH I B ......... ......... .......... .......... ......... .................... .......... ......... ....5 - 17

INBAND MODE .................................. ............................................ . 5 -17

TX CLK SOURCE .... .......... ......... ... ......... ... .......... ......... ... ......... ... ......5-17

Dial Backup Configuration .....................................................................5-18

Backup Mode . .......... .......... ......... .......... ........................... ......... ......... 5- 18

Backup On ......... .......................... .......... ........................... ......... ......... 5- 18

NET FAIL ........................................................................................... 5-18

NET/DATA FAIL ................................................................ .............5-18

xvi TDU 120e User Manual 61202156L1-1

Table of Contents

Pattern Verify .................................................................................... 5-18

Backup Delay ................ ........................... ......... ........................... ...... 5-18

Restore Del ay ...... .......... .......... .......................... ................................. 5-19

Retry Delay ................................................... ..................................... 5- 19

Num Ret ries ...... .. ... ......... ... .......... .. .. .......... ... .. .......... .. .......... .. ... ........ 5-19

Backu p Testing ... .......... .......... .......................... ........................... ...... 5- 19

WKEN D Locko ut .... ........................... ........................... .................... 5- 19

DS-1 ( 0.2) Menu Items......... ......... .......... .......... .......... ......... .......... .......... ........ 5-20

Format ................................................................................................5-20

Code .... ............ .......... ............ ............ ............. ............ ......... ............. ... 5 -20

Yellow A la rm ................. ... .. .......... .. ... .......... .. .. .......... ... ......... ... .. ...... 5 - 20

Line Le ngth (ft) ............. .......... ......... .......... .......... .......... ....................5-20

Inband Loopback (INBANK LPBACK) ......................................... 5-21

Robbed Bit Signaling ........................................................................ 5-21

RBS Start ......... .......... .......... .......... ......... .......... .......... ......... ................ 5-21

RBS E n d ........ .......... ................... .......... .......... ......... .......... .......... ........ 5 -21

Chapter 6. Utility Menu.........................................................................................6 -1

Time/Date........................................................................................................... 6-2

Facto r y Restor e ............. ........................... ........................................................... 6-2

Set Pass code . .......... ... ......... ... ......... ... .......... .. .......... .. .......... .. ... ......... ... .......... .. ... 6-3

Chang e /S e t a Pa s sc ode ...... .......... .. .......... .. .......... .. ... .......... .. .......... .. ........ 6-3

Lost Pa ss co de ........... .. .......... .. ... .......... .. .......... .. .......... .. .......... .. ... .......... .. ... 6-3

No Pass co de D e s i re d ... .. .......... .......... .. .......... ......... .......... ... ......... .......... .. . 6-3

Unit ID . ......... ... .. .......... .. .......... ... ......... ... ......... ... .. .......... .. .......... ... ......... ... ......... . 6-3

To Set the Unit Identification ................................................................... 6-4

No Unit ID Desired ........ .......... .. .......... .. .......... .......... .. .......... .......... .. ........ 6-4

Softw are Revision.. .......... .......... ......... ........................... .......... .......................... . 6-4

Port Utility..................................................... ................. ............ ............ ............. 6-4

Ethern e t Ad d re s s. .. ... ......... ... .. .......... .. .......... .. .......... ... .. .......... .. .......... .. .......... .. . 6-4

Chap ter 7. Test Menu.............................................................................................. 7-1

Network Tests ......................... ............................................................. ............... 7 -2

Loopb ack Tests ................................... ........................................... ............. 7-2

Network Inte rface Loopbacks .................................................................. 7-2

Line ....................................................................................................... 7-2

Paylo ad ....... ......... .......... .......... ....... .......... ......... .......... .......... ....... ........ 7-3

Local Loopbck ............................................................................................ 7-3

Line On .............. .......... ......... .......... .......... .......................... .......... ........ 7-3

Payload On .......................................................................................... 7-3

No Loopback ...... .......... .......... .. .......... .......... .. .......... ......... ... .......... ..... 7 -3

Remote Loopback .............. ......... ........................... .......... .......................... . 7-3

61202156L1-1 TDU 120e User Manual xvii

Table of Contents

ATT In-Band LLB ................................................................................ 7-4

ANSI FDL PLB ......... ........................... .......................... .......................7-4

ANSI FDL LLB .......................... ........................................................... 7-4

ANSI FT1 LL B ................. ............................................ ......................... 7-4

No Loopback .. ... ......... .......... .. .......... .......... .. .......... .......... .. .......... ........ 7-4

Test Patt e rn ...... ... .. .......... .. .......... .. .......... ... .. .......... .. .......... .. .......... .. .......... . 7-4

All Ones ...................................................... .......................................... 7-4

All Zeros ............................................................................................... 7-4

QRSS Pattern ................. ......... .......... .......... .......... ......... .......... .......... ...7 -5

Pattern Result ..............................................................................................7-6

ES ....... ......... ............ ............. ............ ......... ............. ............ ............ ........ 7-6

BES ........................................................................................................ 7-6

SES ..... ....... .......... ......... .......... ....... .......... .......... ......... ........ ......... .......... . 7-6

*SYNC ............. ...................... ............... .............. ............ ............... ........ 7-6

Run Self-Test ............................. ............................................................. .............7-7

Port T e sts ........... .. .......... .......... .. .......... .......... .. .......... .......... .. .......... ......... ... ........ 7-8

Port T e st Menu It e ms Nx/DB U (0. 1) ..... ......... .......... .. .......... ... ......... ......7-9

DTE LOOPBACK ....................................................................................... 7-9

PORT/LOCAL ....................................................................................7-9

REMOTE ....... ......... ... .. .......... .. .......... ... ......... ... ......... ... .......... .. .. .......... . 7 -9

OFF . .......... .......... ......... ........ ......... .......... .......... ....... .......... ......... .......... . 7 -9

REM V.5 4 Cont. .............................................. .....................................7-9

511 PAT T R N .. .......... .......... ......... .......... .......... ......... .......... .......... ......7-10

511 RES U LTS .... ......... .......... .......... ......... .......... .......... .......... ......... ....7 - 10

DBU LOOPBACK .............................................................................7-10

DBU TEST .......................................................................................... 7-10

DBU DATA/CNTRL ........................................................................7-11

DBU TST RESULT ............................................................................. 7-11

DS-1 ( 0-2) Option Ports ............... ........................... .......... .......... ......... ....7- 11

Loopback ............................................................................................ 7-11

Cance l Tests.......................................................................................................7-11

Chapter 8. Remote/Management Menus.............................................................8-1

Remote Menu Access ............ ........................................... ........................... .............8-1

Manag e m e n t Config uration ..... .......... ... ......... .......... .. .......... ... ......... .......... .. .......... . 8-1

Unit Acc e ss Table ............... ... ......... ... ......... .......... ... ......... ... ......... .......... ... ......... ... ...8-1

SNMP Read Community.. .......... .......................... ........................... .................. 8 -4

SNMP Read/Write Community . .......... ........................... .......................... ......8-4

SNMP Trap Commun i ty ............ ......... ........................... ........................... ........ 8-4

Host 1 T ra p IP Ad dr e ss .... .. .......... .. ... ......... ... ......... ... .. .......... .. .......... . 8-4

Host 2 T ra p IP Ad dr e ss .... .. .......... .. ... ......... ... ......... ... .. .......... .. .......... . 8-5

Host 3 T ra p IP Ad dr e ss .... .. .......... .. ... ......... ... ......... ... .. .......... .. .......... . 8-5

xviii TDU 120e User Manual 61202156L1-1

Table of Contents

Host 4 T ra p IP Ad dress .... .. .......... .. ... .......... .. .. ... .......... .. .. .......... ... .. ... 8-5

System Name ....................................................................................... 8-5

System Contact .................................................................................... 8-5

System Location .................................................................................. 8-5

Auth. Fa il Traps Se nt .... ... .. .......... .. .......... ... ......... ... ......... ... .......... .. ... 8-5

Poll Li nk Sta t u s Tr aps Sent ... .. .......... .. .......... .. .......... ... .. .......... .. ........ 8-5

Ping IP Host ......................................................... ................................ 8 -5

Telnet/Terminal Timeout .................................................................. 8-6

Telnet/Terminal Password ............................................................... 8-6

Exit ........................................................................................................ 8-6

Flash Download....................................... ........................................................... 8-6

XMODEM ............................................................................................ 8-6

Trivi al File Transfer Protocol (TFTP) ....................................... ........ 8-6

TFTP Server IP Address: 0.0.0.0. ........................................ ............... 8 -6

TFTP Server File name: T120e.biz ...................................... ..............8-7

Begin Firmware update. .................................................................... 8-7

Quit Se ss i o n....... ... .. .......... .. .......... .. .......... ... ......... ... ......... ... .......... .. .......... .. ........ 8-7

Append i x A. SNMP ... ... .. .......... .. ... ......... ... ......... ... .......... .. .. .......... ... ......... ... ........ A-1

Append i x B . Con ne ct o r Pin o ut s ................ ... .. .......... .. ... ......... ... ......... ... .. .......... .. B-1

Appendix C. System Messa ge s. .......... .......... .. .......... .. .......... .. .......... .......... .. ...... C-1

Append i x D . Spe ci fi ca t i ons..... .. .......... .. .......... .. ... .......... .. .......... .. ... ......... ... ........ D-1

Index ................................................................................................................ Index-1

61202156L1-1 TDU 120e User Manual xix

Table of Contents

xx TDU 120e User Manual 61202156L1-1

List of Figures

Figure 1 -1. TDU 120e Op tion Modules ......... ......... .......... .......... ......... .................. 1-4

Figure 1-2. Bridge, PBX, Video Conferencing Application Set Up.................... 1-5

Figure 2-1. TDU 120e Rear Panels........ .......... ......... .......... ........................... ..........2-4

Figure 2 -2. TDU 120e In terface s ......................... ........................... ......................... 2-5

Figure 2 -3. Example of Chain-in............................ ........................... ...................... 2-9

Figure 3 -1. Sample Terminal Screen with TDU 12 0e M enu.. .......... .......... .......... 3-2

Figure 3-2. Exampl e of Bas i c Menu Travel.... ......... .......... .......... .......................... . 3-3

Figure 3 -3. Telnet/Termina l Main M e n u .............................. ........................... ..... 3-6

Figure 3 -4. TDU 120e Fron t Panel Layout.............. .......... .......... ......... .......... ........ 3-8

Figure 4-1. Status Menu Tree ............................ ........................... .......................... . 4-1

Figure 4-2. Networ k I nterface Perform ance Rep ort ............................. ............... 4-2

Figure 5 -1. Configuration Menu Tree ....................... ......... ........................... ........ 5-2

Figure 5-2. Network Timed Clock Source.................................... ......................... 5-4

Figure 5 -3. DS-1 Timed C l ock Source .............. .......... ......... .......... ......................... 5-5

Figure 5-4. Base D TE Timing Clock Source ........... ........................... .................... 5-5

Figure 5-5. Internal Clock Source.... .......... .......................... ........................... ........ 5-6

Figure 5-6. Secondary Clock Source ......... .......................... ........................... ........ 5-6

Figure 5 -7. Normal (CSU) Timing .......... .......... .......... .......................... .................. 5-7

Figure 5 -8. DS0 Temp Map..... .......... .......... ......... .......... .......... .......... ......... .......... . 5-11

Figure 5 -9. DS0 Ma p D esignations.. .......... ......... .......... .......... .......... ......... ........... 5-14

Figure 6-1. Utility Menu Tree.................................................................................. 6-1

Figure 7-1. Test M enu Tree .................................. ........................... ......................... 7-1

Figure 7-2. Network Loopback Tests ............... ............................................ .......... 7-3

Figure 8- 1 . Unit A c ce s s Table.... .. .......... .. .......... .. ... .......... .. .......... .. .......... .. .......... .. . 8-2

61202156L1-1 TDU 120e User Manual xxi

List of Figures

xxii TDU 120e User Manual 61202156L1-1

List of Tables

Table 1-1. TDU 120e Optio n M odules ......................... .......... ........................... ..... 1-3

Table 3-1. Activa ting Alarm List from Statu s Men u ....................... .......... .......... 3-3

Table 3-2. Editin g a Data Fi e l d . ......... .......... .......... .......... ......... .......... .......... ......... . 3-4

Table 4-1. NI Error Typ es............ .......... ........................... .......................... ............. 4 -3

Table 4-2. Alarm Messa g e Display ...... ........................... .......................... ............. 4-3

Table 5-1. Norm al Mode of Operation.............. .......... .......... .......... .................... 5- 17

Table 8-1. Unit Access Comma n d s ... ........................... .......... ........................... ..... 8-3

Table B-1. Network Pinout of the 8 -Pin Modular Conn ector ... .......... .......... ..... B-1

Table B- 2. Network P i n out of the M ale 15-Pin D-Connector.. ......... ..................B-2

Table B-3. Control In/Chain In Pin out..................................................................B-2

Table B- 4. Chain-Out Pino u t.. .......... .......... ......... ........................... .......... ...............B-3

Table B- 5. Craft Po rt Pinou t . ........................... ......... ........................... .......... ..........B -3

Table B- 6 . V.3 5 Pinout f or Nx56/64 DTE. ......... .......... .......... .......... ......... .......... ...B -4

Table B-7. Base DS-1 Pinou t of the 8- P i n out Modular Conne ctor........... ......... .B -5

Table B-8. Base DS-1 Pinou t of the 15 -Pin Female D-Conn ector............... ........B-5

Table B- 9. 10BaseT Ethernet Conn ector ........ ......... .......... .......... ......... .......... ........B-6

Table B-10. Extern al Alarm Device Connect or...... .......... .......... ......... .......... ........B-6

Table B-11. Power Connector (for DC powered units) .......................................B-6

Table C- 1. Network Interfa ce (NI) Alarms ....... .......... ........................... .............. C-2

Table C-2. Nx/DBU In terface A l arms ... ........................... .......... ......... .......... ....... C-2

Table C- 3 . DS -1 (PBX) Interf ace Alarms............ .......... .......... .......... ......... .......... .. C-3

Table C- 4. Network Interfa ce (NI) Status Messages................. .......................... C-3

Table C-5. Nx/DBU In terface Status Me ssages ............ ......... .......... .......... ......... C-4

Table C- 6 . DS -1 (PBX) Interface Status Messag e s ........... .......... ......... .......... ....... C-4

Table D-1. T1/FT1 I nterface........... ......... .......... .......... ......... .......... .......... .......... ....D-1

Table D-2. Nx/DBU Interface - Port 0.1-Nx56/64 (V.35 Interface).................. D-2

61202156L1-1 TDU 120e User Manual xxiii

List of Tables

Table D-3. D S-1 Interface - P ort 0.2 ... ........................... .......... ......... ......................D -3

Table D-4. Chain In/Out Ports & Craft Port .......................................................D-4

Table D-5. 10BaseT Interface.... .......... .......... .......... .......................... ......................D-4

Table D - 6. O p ti on Slot I nterface............................................... ........................... .. D -4

xxiv TDU 120e User Manual 61202156L1-1

Chapter 1

Introduction

TDU120e OVERVIEW

The TDU 120e is a T1/FT1 multiplexer with the fo llo wing
features:

• Nx56/64 V.35 data port

• DS-1 (PBX) interface

• option slot

• embed ded SNMP management
The TDU 120e’s option slot accepts one of many available

option modul e s for voice and data applications.

The TDU 120e serves as the link between user data sources
such as:

• local area networ k (LAN) bri dges and routers

•computers

•CAD systems

• teleconferencing equipment

•PBXs.
Through the use of multiple data ports, the TDU 120e 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 manually allocate
bandwidth or set the bandwidth to change automatically at
predetermined times to use the available bandwidth most
advantageously. Changes in the configuration do no t disrupt
data flow in channels that are not being reconfigured. The
unique architecture and the availability of option modu les
provides a path for growth to accommodate future
requirements.

61202156L1-1 TDU 120e User Manual 1-1

The TDU 120e offers a wide variety of network management
options. You can manage via SNMP through the 10BaseT or
chain-in ports. If you are using T-Watch Pro, a Microsoft
Windows® program, you can manage the TDU 120e via the
same 10BaseT or chain-in ports. An enhanced VT-100
terminal interface is also provided.

Standard Feat ures in the TDU 120e

The following list describes the standard features the
enhanced TDU 120e.

• A single T1 interface.

• A Nx/DBU V.35 port and DS-1 (PBX) interface.

• An inband communication channel requiring only 8k of
bandwidth from a single DS0.

• One o p tion slot to house o p t ion modul es with up to four
additional ports, including voice and data.

• Allows mix of port types to meet the data interface
requirements.

• Easy configuration cap abilities using simplistic menus
displayed on a terminal or computer connected to the
control port or the Craft Jack on front of the unit.

• 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 DS-1 ports, internally, or fr om a secondary interface.

• QRSS; 51 1 test patterns using Nx option.

• Extensive self-testing and monitori ng provides assurance
of proper operation.

• SNMP, Telnet, and T-Watch Pro management via SLIP or
10-BaseT

• Ability to proxy for “agentless” u nits

• Enhanced terminal mode

Chapter 1. Introduction

1-2 TDU 120e User Manual 61202156L1-1

• Fractional T1 loopbacks as defined in annex B of ANSI

T1.403-1995

• Software configurable long-hau l or short -haul DS-1 port

• External alarm connector

TDU Option Modules

Table 1-1 shows a list of option modules and their
descriptions for the TDU 120e.

Module Description

Chapte r 1. Introduction

Table 1-1. TDU 120e Option Modules

DSX-1

Full Dr op an d
Insert

Nx56/64 serial
interface

Voice interface
OCU DP

DSU DP
Dial backup
U-BR1TE

Short haul T1 inte r face for operation with a PBX (Terminal
Interface)

Permits the dropping of data and insertion of new data into
the same DS0 time slot

This module includes a long haul DS-1 interface. It can
also be used as a second DS1 interface to provide an up
to 3 MB aggregate throughput

Provides a V.35 serial interface in either single or dual ver­sions

2/4 channel FXS/FX0/E &M
Interfaces to DDS or 4-wire Switched 56, dual or single

versions
Provides two sync or async ports (EIA-232 or V.35)
Allows for backup of data upon network T1 failure
Allows I SDN l ines to b e extended over a T1 line

61202156L1-1 TDU 120e User Manual 1-3

Option Module Architecture

The TDU 120e features a unique architecture that allows the
addition of one option module and plug-on board providing
an opportunity for growth to accommodate another
application. See Figure 1-1.

Chapter 1. Introduction

TDU 120e

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OCU-DP

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Plug on

V.35

Plug on

OCU DP

Plug on

Dual Voice

Figure 1-1. TDU 120e Option Modules

1-4 TDU 120e User Manual 61202156L1-1

Chapte r 1. Introduction

TDU 120e CONFIGURATION APPLICATIONS

The follow ing e xamples illustrate possible configurations of
TDU 120e applications.

Router, PBX, Video Conferencing Application

In this application, the Base Nx/DBU provides a V.35
interface to a router. The PBX is interfaced to the TDU 120e
with the Base DS-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. See Figure 1-2.

PBX

VIDEO
CONFERENCING

TDU 120e

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ROUTER

10 BaseT LAN

SNMP NETWORK

MANAGEMENT WORKSTATION

Figure 1-2. Bridge, PBX, Video Conferencing Application Set Up

61202156L1-1 TDU 120e User Manual 1-5

Chapter 1. Introduction

1-6 TDU 120e User Manual 61202156L1-1

Chapter 2

Installation

UNPACK, INSPECT, P OWER UP
Receipt Inspection

Carefully inspect the TDU 120e for any shipping damages. If
you suspect damage, file a claim immediately with the
carrier and then contact ADTRAN Customer Service (see the
front section of this manual for contact information). If
possible, keep th e o riginal shipping c ontainer for use in
shipping the TDU 120e back for repair or for verification of
damag e during shipmen t.

ADTRAN Shipments Include

The following items are included in the ADTR AN shipment:

• The TDU 120e

• 2-line interface cables : A 15-foot, 8-position modular to 8-

position modular

• A DB-25 to modular adapter

• A 6-foot, 8 - position modu lar cable for connection to the

chain-in port

• The User Manual

Customer Provides

• Cables for any expansion modules to be used with the
TDU 120e

• 10BaseT cable for connection to a LAN or router (if you
plan to use remote management features)

61202156L1-1 TDU 120e User Manual 2-1

Power Connection

AC powered units: Each TDU 120e AC 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 TDU 120e AC must be from a grounded 90-120
VAC, 50/60Hz source.

DC powere d un i ts: Each TDU 120e DC unit is provided with
a two-pin power receptacle and mating plug. Power to the
TDU 120e DC is +

48 VDC or +24 VDC.

GROUNDING INSTRUCTIONS

Grounding instructions from the Underwriters' Laboratory UL
1950 3rd Edition are provided in this section.

Chapter 2. Installation

An eq u i p m e n t g roundin g c onducto r th at is not sm a l le r in
size than the ungrounded branch-circuit supply conductors
is to be installed as part of the circuit that supplies the
product or system.

• Bare, covered, or insulated grounding conductors are
acceptable.

• Individually covered or insulated equipment grounding
conductors shall have a con tin uou s 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.

• The equipment grounding conductors serving these
receptacles are to be connected to earth ground at the
service equipment.

2-2 TDU 120e User Manual 61202156L1-1

Chapter 2. Installation

• 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 branch­circuit supply conductors.

• The supplementary equipment grounding conductor

shall be connected to the product at the terminal
provided.

• It 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 supplementary

equipment grounding conduc tor shall be in compli an ce
with the rules for terminating bonding jumpers at Part K
or Article 250 of the National Electrical Code, ANSI/
NFPA 70.

• T ermination of the supplementary equipment grounding

conductor is permitted to be made to building steel, to a
metal elec tri cal r ace way syst em, or to any g rou nde d item
that is permanently and reliably connected to the
electrical service equipment ground.

• The supplemental grounding conductor shall be

connected to he 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 in st a lle d us ing the

appropriate crimping tool (AMP P/N 59250 T-EAD
Crimping Tool or equivalent).

Do not use this product near water, such as in a wet base­ment.

For DC-powered devices, the supply power for the product
shall be inst alled near the equipm ent and shall be easily acces­sible.

61202156L1-1 TDU 120e User Manual 2-3

REAR PANEL LAYOUT

Figure 2-1 shows the configuration of the TDU 120e rear
panels of the for both the AC powered unit and the DC
powered unit.

Chapter 2. Installation

Figure 2-1. TDU 120e Rear Panels

2-4 TDU 120e User Manual 61202156L1-1

TDU 120e Interfaces

The TDU 120e is equipped with an Nx/DBU data port, a DS­1 interface, an option slot, management interfaces, an
external alarm connector, and a T1 interface, in the rear panel.
See Figure 2-2.

PC or Modem

10BaseT

Control

Input

TSU 120e

NI

Chain

Output

Chapter 2. Installation

Chain

Chain

Input

Output

TSU 120e

NI

Network

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 Wiring on page
B-1.

Nx56/64 Serial Interface

The Nx56/64 provides a serial V.35 port that operates from
56kbps to 1.536Mbps. This port provides 511 pattern
generation and detection and rem ote loopback capability.

DS-1 (PBX) Interface

The DS-1 Interface provides a T1 for a PBX or other
equipment. This port complies with ANSI T1.102. It can be
software configured for either long-haul or s h ort-h aul.

DS-1

Nx56/64 Nx56/64

Option Option

V.35

PBX

Figure 2-2. TDU 120e Interfaces

DS-1

DS-1

V.35

Control Port Input

The control port input provides an EIA-232 input from a PC
or a modem for contr ol of the TDU 120e. You can also use it

61202156L1-1 TDU 120e User Manual 2-5

as a chain input fr om anot her TDU 1 20e or TSU 100 . Fo r more
information, see Wiring on page B-1.

Craft Port

The craft port provides the same functionality as the Control
Port Input. Both the craft port and the control port input may
be connected simultaneously, but only one port may be active
at a time. For more information, see Wiring on page B-1.

Chain Port Output

The chain port output provides an EIA-232 output to chain
control to other TDUs or to TSUs. For more information, see
Wiring on page B-1.

10BaseT Interface

The 10BaseT interface pro v ides the LAN interface for
managing the TDU 12 0e w ith SNMP or T-Watch Pro. For
more information, see Wiring on page B-1.

External Alarm Connector

The external alarm connector allows you to connect an
external alarm device to the TDU 120e. The alarm relay will
activate on any alarm. The relay will remain activated until
the ACO button on the front panel is pushed. For more
information, see Wiring on page B-1.

Chapter 2. Installation

2-6 TDU 120e User Manual 61202156L1-1

Chapter 2. Installation

POWER UP TESTING

When shipped from the factory, the TDU 120e is set to factory
default conditions. At the first appl icat io n of power, the unit
automatically executes a memory self-test. A full self-test can
be run from the terminal. A passcode and unit ID may be set
using the UTIL menu.

Self-Test

When... Then...

Initiating a self-test The terminal displays System S elf-test Now

Testing and Memory Test Now Testing. The

test leds are illuminated.

The self-test is completed All LEDs go back to their normal state. The ter-

minal momentarily displays System Self-test
Tests passed.

A failure is detected A list of failures is displayed on the terminal.

The full self-test procedure (invoked from the terminal or T­Watch PRO) consists of the following tests:

Board Level Tests

The TDU 120e contains an on-board processor which exe­cutes a series of tests checking the circuitry on the board.

RAM and EPROM Tests

Verify on-board circuitry

Unit Level Tests

Front panel LED verification.

Board-to-Board Interface Test

A test pattern is sent fro m the controll er throu gh a loopback
on all other boards and checked on the controller.

This verifies the data path, clocks, and control signals for the
entire chassis.

61202156L1-1 TDU 120e User Manual 2-7

Initialization

Set User Passcode

The TDU 120e 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 sa me for all the units.

The passcode should be a number easily remembered. Once
entered, the passcode is required to acces s any operation
other than viewing. See Set Passcode on page 6-3 for details.

Set Unit Identification

The Unit ID sets the unit to respond to remote control
(controlled by a device other than the front panel or
terminal). If n o 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 6-3 for
details.

Chapter 2. Installation

Set Control Port

The TDU 120e can be configured from the control port when
T- Watch PRO, SNMP, or the termina l interface ar e being
used. If the control port is to be used, the control 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 s ele ction of the Control Port baud rate from
9600 (factory default), 1200, 2400, or 4800, 19200, or 38400
must be made usin g the U

NIT CONFIGURATION

menu. See Unit

Menu on page 5-8 for details.

2-8 TDU 120e User Manual 61202156L1-1

Chain In/Chain Out

TDU 120e units and other TDUs and TSUs can be linked
together to form a chain. Figure 2-3 sho ws an example of a
chain-in arrangement with a PC or a modem. The first TDU
120e in the chain receives controlling input from the PC or
modem.

PC or Modem

Chapter 2. Installation

Control

Input

TDU 120e

Chain

Out

ChainInChain

Out

TDU 120e /

TSU 100/TSU

ChainInChain

Out

TDU 120e /

TSU 100/TSU

Figure 2-3 . Example of Chain-in

Subsequent TDU/TSUs in the chain are in a position to
intake information from another TDU or TSU. This intaking
of information from another TDU in the chain is identified as
Chain In. The baud r a te for the chained units must match
that of the first unit.

Unless locked out externally, the front panel can also control
the unit.

At this point, the Un it Init ia liza ti on procedure is conclu ded .
If the unit is to be configured remotely, there are no
additional items necessary to complete prior to executing
remote configuration.

The Passcode, the Unit ID, and the Co ntrol Port settings are
stored in a nonvolatile memory. This ensures they are
operable for subsequent power-up sequences.

61202156L1-1 TDU 120e User Manual 2-9

Normal Power-Up Procedure

After the unit has been put into operation with the initial
power-up and initialization, subsequent power -up procedure
includes only the Power-Up self-test followed by the request
for a passcode (password) if this option was selected during
initialization.

Chapter 2. Installation

Type the previously recorded passcode and press

Enter

.

2-10 TDU 120e User Manual 61202156L1-1

Chapter 3

MENU FEATURES

The TDU 120e uses a VT 100 type terminal to display control
and monitor menus. Initiate this mode by key ing in <CTRL>
PTT on the terminal onc e it is connec ted to the Control In or
Craft port.

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 M

For detailed information on this method of control, see
Telnet/Terminal Main Menu on page 3-6.

You can also connect to the TDU 120e via telnet. Before
attempting to connect via telnet, first define the IP address,
the default gateway, and the subnet mask.

Operation

ANAGEMENT

submenu.

See D

EFAULT UNIT PASSCODE

details. The telnet sess ion w ill time-o ut after a predefine d
value that is a ls o set in the M

Only one tel net session can be a ctive at a time.

61202156L1-1 TDU 120e User Manual 3-1

in Table 8-1 on page 8-3 for

ANAGEMENT

menu.

Sample Terminal Screen with TDU 120e M enu

An example of a PC screen with a TDU 120e menu is shown
in Figure 3-1.

Main Menu

1) Status

2) Config

3) Util

4) Test

5) Remote Menu Access

6) Management Config

7) Flash Download

8) Quit Session
Command:

Figure 3-1. Sample Terminal Screen with TDU 120e Menu

General Menu Operation

The TDU 120e uses a multilevel menu structure containing
both menu items and data f ie lds. All menu operations an d
data are displayed on the terminal.

Chapter 3. Operation

Select and Activate a Menu Item

T o choose a menu item, place the cursor on the desired menu
item by:

• pressing the number corresponding to the menu item, or

• using the up and down arrows.

Table 3-1 on page 3-3 describe how to activate the alarm list
option from the Status Menu.

Figure 3-2 on page 3-3 shows an example of basic menu
travel.

3-2 TDU 120e User Manual 61202156L1-1

Chapter 3. Operation

Table 3-1. Activating Al arm List from Statu s Menu

Step Action Result

Activate the STATUS menu using the

1

arrow keys or by pressing 1.

The cursor will flash on the num­ber next to the activated selec­tion.

Press Enter. The status subme nus will dis -

2

play.

Use the arrow keys to view submenu

3

items.
Choose an item on the submenu

4

such as ACTIVE ALARMS.

The cursor will flash on the num­ber next to the activated selec­tion.

Press Enter. The active alarm list will display.

5

View the Alarm List.

6

.

1) NETWORK (NI) PERFORMANCE REPORTS

2) NETWORK (NI) ERRORS

3) ACTIVE ALARMS (ALARM LIST)

4)VIEW HISTORY END OF LIST

STATUS 5) PORT STATUS

6) REMOTE PORT

7) CLEAR PORT ALARM

8) ETHERNET STATUS

Figure 3-2. Example of Basic Menu Travel

61202156L1-1 TDU 120e User Manual 3-3

Chapter 3. Operation

Y ou can edit data fields preceded by a colon (:). T o edit a data
field, perform the steps in Table 3-2:

,

Table 3-2. Editing a Data Field

Step Action Result

Position the cursor on the sub-

1

menu item number and press

.

Enter

Using the space bar, scroll to scan

2

the available value settings.

When the desired value is dis-

3

played in the data field position,
press

to set that value.

Enter

Another submenu field may be
selected, or press E

SCAPE

to return

to the submenu.

Exit Any Menu Field Operation Or Display

Press

Escape

as ma ny times as required to re t u rn to the

desired menu level.

The cursor moves to the data
field (to the right of the sub­menu item name).

The value settings display
one-at-a-time in the data field
position.

When the value is set, the cur­sor moves back to the sub­menu item position. This
indicates the operation is
complete.

3-4 TDU 120e User Manual 61202156L1-1

Data Port Identific ation

When configuring the unit, menu selectio ns will include
opti ons from da ta port submenus. Se le cting of dat a p o rts is
necessary because the TDU 120e uses a Slot-Port method to
identify the data port the menu item is referencing. If a
module containing 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 i s located in the option slot an d is the f i rst port i n
that slot.

Nx56/64 (1.2)

Where slot=1 and port=2.

The Nx is located in the slot and is the second por t in that
slot.

Chapter 3. Operation

The ports that are built into the TDU 120e are referenced as
Slot 0. The Nx/DBU is designated as 0.1 and the DS-1 is
referenced as 0.2.

61202156L1-1 TDU 120e User Manual 3-5

Menu Structure

Telnet/Term inal M a in Menu

The TDU 120e uses a multilevel menu structure containing
both menu items and data f ie lds. All menu operations an d
data displa y in the t erm ina l win dow.

The first menu displayed after the telnet/terminal session is
established is the Main menu. See Figure 3-3. The default
telnet/terminal password is ADTRAN.

ADTRAN - TDU 120e
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

Chapter 3. Operation

Figure 3-3. Telnet/Terminal Main Menu

.

Only one telnet/ te rmi nal session may be active at a tim e.

3-6 TDU 120e User Manual 61202156L1-1

Menu Options

Chapter 3. Operation

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.

Status

Displays all relevant information for the network and DTE
interfaces. For detailed information on status options, see
Chapter 4, Status Menu on page 4-1.

Config (Configuration)

Displays sets the TDU 120e operational configuration,
including all net work interface parameters, 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)

Displays and sets system parameters. For deta iled inform a­tion on utility options, see Chapter 6, Utility Menu on page 6-

1.

Test

Initiates different types of unit tests and displays test results
in the terminal window. For detailed information on test
opti ons, se e Chapter 7, Test Menu on page 7-1.

Remote Menu Access

Displays Telnet menus for a remote devic e. For detailed
information, see Remote Menu Access on page 8-1.

Management Configuration

Displays management information. For detailed information,
see Management Configuration on page 8-1.

Flash Download

Allows you to manually perform a Flash download. For
detailed information, see Flash Download on page 8-6.

Quit Session

Terminates the telnet/terminal session.

61202156L1-1 TDU 120e User Manual 3-7

FRONT PANEL

The TDU 120e front panel monitors operation and controls
the configuration of the unit. The TDU 120e front panel is
shown in Figure 3-4.

CRAFT

Connection

For

Terminal

NETWORK MON

IN OUT

Network

Monitor Jack

IN OUT

REMOTE

ACCESS

ACO

Alarm

Cut Off
Control Port

Active Unit

Descriptions of each part of the front panel follow.

ACO Switch

The Alarm Cut-Off switch deactivates the alarm relay after
an alarm condition has occurred. If the alarm that activated
the alarm relay is cleared, then reoccurs, the alarm relay will
reenergize.

PORT 0.2 MON

IN OUT

IN OUT

DS-1

Monitor Jack

Chapter 3. Operation

TD

U

1

20

eA

OK

RED

TEST

ALARM

ERROR

NETWORK STATUS

Network

Status LED's

YEL

OK

TEST

ALARM

0.1

0.2

1.1

1.2

1.3

PORT STATUS

Port Status

1.4

LED's

PORT 1.1 MON

IN OUT

IN OUT

Port 1.1

Option Card

Monitor Jacks

C

Figure 3-4. TDU 120e Front Panel Layout

Remote LED

The remote LED (yellow) indicates a management session
(terminal mode or teln et) i s acti ve. The LED does n ot acti va te
(turn on) during SNM P sessions.

Craft Port

The Craft Port is used as an EIA-232 port to connect the unit
to a computer, a modem, or to another TDU/TSU
multiplexor or a TSU 100.

Network Monitor Jack

This jack connects the unit to the network.

3-8 TDU 120e User Manual 61202156L1-1

DS1 Monitor Jac k

This jack connects the unit to a PBX or other terminal
equipment.

Network Status LEDs

The Net work status LEDs display the operational condition
of the network interface located on the controller board in the
unit.

Network Status LED Display Indicates that...

Chapter 3. Operation

OK (green)

Test (yellow)

Error (red)

Alarm (red)

the operation is in the normal mode and no
errors have been detected.

the network interfaces is operating in a test
mode. This includes a self-test or a test loop­back. When illuminated, this LED also indi­cates that normal data flow is not occurring
on the network interface.

an error has occurred, such a s BPV, OOF, or
CRC.

an alarm condition has been detected. Any
alarm condition will activate the alarm relay
for the external alarm device. 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.

If the alarm conditions have been corrected, the alarm which
caused the activation of the Alarm LED can be viewed under t he

U

NIT HISTORY

menu.

61202156L1-1 TDU 120e User Manual 3-9

Port Status LEDs

Port Status LED Display Indicates that...

Chapter 3. Operation

OK (green)

Test (yellow) one of the interfaces is operating in a te st

Alarm (red)

the operation is in the normal mode and no
errors have been detected.

mode. This includes a self-test or a test loop­back.

When illuminated, it also indicates that normal
data flow is not occurring in at least one of the
module ports.

an alarm condition has been detected. Any
alarm condition will activate the alarm relay for
the external alarm device. When the alarm
condition is no longer valid, the OK LED acti­vates (turns on).

To view an a larm condition, selec t the active
alarm menu item.

If the alarm conditions have been corrected,
the alarm which caused the activation of the
Ala rm LED ca n be viewed under the U

menu.

TORY

NIT HIS

-

Port 1.1 Option Card Mo ni to r Jacks

These are used to connect option cards to the computer.

3-10 TDU 120e User Manual 61202156L1-1

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 TDU
120e using a graphical interface. The T-Watch Pr o program
displays the same status and performance data as the
terminal screen. This data is displa yed in tables a nd gra phs .

The T-Watch Pro program has the follo wing capabilities:

• Interfaces with a modem which permits dialing into a

remote TDU 120e location to configure the unit or read
the status or performance of the unit.

• Receives traps from any TSU product.

• Records and creates display performance data over a 30

day period.

• Accesses u nit s v ia th e lo cal area network.

Setting up the TDU 120e to Work Over a LAN

To s et up the TDU 1 20e to work with T-Watch Pro ove r the
LAN, follow these steps:

Chapter 3. Operation

Step Explanation

Set the Unit ID using the Terminal or Telnet. See

1

ID

on page 6-3 for details.

Set control port interface to Normal (10BaseT) or

2

SLIP (chain-in port).
Configure the IP address, default gateway, and sub-

3

net mask.
Follow the installation instructions for T-Watch PRO to

4

start the program and connect to the unit.

61202156L1-1 TDU 120e User Manual 3-11

Unit

Chapter 3. Operation

Setting up the TDU 120e to Work Over an EIA-232 Connection

To s et up the TDU 120e to work with T-Watch PRO ove r a
direct EIA-232 connection, follow these steps:

Step Explanation

SNMP

1

2

3

4

The ADTRAN TDU 120e supports the Simple Network
Management Protocol (SNMP) through the 10BaseT or chain
in (SLIP) interface. See Appendix A SNMP, on page A-1, for
more information.

To use SNMP with the TDU 120e, follow these steps:

Step Explanation

Set the Unit ID and set a passcode. See

Passcode

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 TDU 120e using the DB-25 adapter and mod­ular cable provided.

Follow the in stallation instruction s for T-Watch
PRO to start the program and connect to the unit.

1

Set the control port to either Normal (10BaseT)
or SLIP (Chain-in port)

on page 6-3.

Set

2

3

3-12 TDU 120e User Manual 61202156L1-1

Set the IP address, default gateway, and subnet
mask through the Terminal mode.

Load the appropriate MIB browser into the Net­work Management Station. T he MIB browser
issues SNMP gets to and sets the TDU 120e.
See the ADTRA N webpage at:
http://www.adtran.com.

Chapter 4

Status Menu

The S

menu br anch allows yo u to view the status o f the

TATUS

TDU 120e operation. See Figure 4-1.

%AS

1) NETWORK (NI) %EF
PERFORMANCE REPORTS ES

SES

2) NETWORK (NI) ERRORS UAS NETWORK (NI)

1)STATUS RED ALARM

3) ACTIVE ALARMS LOSS OF SIGNAL
END OF LIST

4)VIEW HISTORY (HISTORY LIST)

END OF HISTORY

1) DTE DATA CLOCK

5) PORT STATUS Nx/DBU (0.1) 2) DTE STATUS

3) DTE PORT RATE

6) REMOTE PORT 4) DBU DATA/CNTRL

5) DBU CONTROL

6) DBU STATUS

DS-1 (0.2) DS-1 ERRORS

7) CLEAR P ORT ALARM

8) ETHERNET STATUS

Figure 4-1. Status Menu Tree

Menu flow is normally depicted from left to right. At every
level of the menu, pressing
previous menu level. Press
system to the M

61202156L1-1 TDU 120e User Manual 4-1

AIN

menu.

Escape

Escape

returns the system to the

repeatedly to return the

Network Performance Reports

The Network Interface Performance Reports display the user
copy of the performance data. The TDU 120e maintains this
performance data on the network in compliance with ANSI
T1.403 and AT&T document TR54016. The data displayed is
data accumulated over the last 15 minutes and over the last
24 hours.

15MIN/24 HR

Chapter 4. Status Menu

%AS ­%EF -

ES ­SES ­UAS -

Where Means

Figure 4-2. Network Interface Performance Report

0.0/NA

0.0/NA
0/NA
0/NA
900/NA

%AS Percentage of available seconds

%EF Percentage of error free seconds

ES Number of errored seconds (1 or more

errors/second

SES Number of severely errored seconds

(more than 320 errors/second)

UAS Number of unavailable seconds (10 or

more consecutive seconds)

If insufficient time has passed to collect data, NA displays. Con­tinue with standard operating procedures to exit the display.

4-2 TDU 120e User Manual 61202156L1-1

Network Inter f ace Errors

Chapter 4. Status Menu

The NI E
work Interface (NI) detects. A blinking CSU error LED indi­cates that network errors are detected.

The asterisk (*) above an item indicates the type of errors
detected. The error types are shown in Table 4-1.

Active Alarms

This menu item dis p lays a lis t o f cu rrent a larm s report ed by
either the base controller or any of the ports. If no alarms are
current, using this menu item displays

submenu displays the types of errors the Net-

RRORS

Table 4-1. NI Error Types

Error Type Description

CRC CRC-6 bit errors based on the FDL. Thi s is

valid only in ESF mo de.
BPV Bipolar violations
XSO Excess zeros
FER Framing errors

End of List

.

The display in Table 4-2 on page 4-3 includes two text fields.
The left field is the alarm source. The right field is the alarm
message. A list of alarm messages is found in Appendix C,
System M essages on page C-1.

If one or more of the Alarm LEDs are illuminated, an alarm is
present. Press

61202156L1-1 TDU 120e User Manual 4-3

Escape

to return to the previous menu item.

Table 4-2. Alarm Message Display

ACTIVE ALARMS
NETWORK (NI)

NETWORK (NI)
END OF LIST

LOSS OF SIGNAL
RED ALARM

View History

Chapter 4. Status Menu

This menu item b oth displa ys and clear s the accu m ula ted
status changes of the unit.

V

IEW HISTORY

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 activation and deactivation.

To clear the V

Po rt Status

P

ORT STATUS

ports. For example, the Nx/DBU interface monitors the RTS,
CTS, TD, and R D, along with other signal lines. When a port
is selected, the terminal indicates if the signal is present.

The base Nx interface offers the status screen listed in this
section. When using other op tion cards, re f e r to the
appropriate separate manual for a definition of any status
screens offered.

The Port Status of Nx/DBU shows how to use this item.

Nx/DBU (0.1) Menu Items

DTE Data/Clock

An asterisk (*) indicates an active status of the following
lines:

displays a history of the last 20 status changes

IEW HISTORY

display, press C.

displays the signals mon i tored on th e data

• TXD -Transmit data from the DTE

• RXD - Receive data toward the DTE

• XSO - Excess zeros from the DTE

• LCK - Lock Status of the phase locked loop

4-4 TDU 120e User Manual 61202156L1-1

Chapter 4. Status Menu

DTE Status

An asterisk (*) indicates an active status of the following
lines:

• RTS - Re quest to sen d from D TE

• CTS - Clear to send to DTE

• DCD - Data carrier detect to DTE

• DSR -Data set ready to DTE

DTE Port Rate

The Port Rate displays the current setting of the Nx port.
Continue with standard operating procedures to exit the
display.

DBU Data/CNTRL

An asterisk (*) indicates an active status on the following
lines:

• TXD - Transmit data to the DCE

• RXD - Receive data from the DCE

• DCD - Data carrier detect from the DCE

• RI - Ring Indicate from the DCE

DBU Control

An asterisk (*) indicates an active status on the following
lines:

• RTS - Re quest to sen d t h e DCE

• CTS - Clea r to send from t h e D CE

• DTR - Data terminal ready to the DCE

• DSR - Data set ready from the DCE

DBU Status

• DBU SECS - Total seconds in current DBU session

• IN DBU -YES/NO i ndication of act ive DBU status

61202156L1-1 TDU 120e User Manual 4-5

DS-1 (0.2) Menu Items (DS-1 Errors)

• CRC - An asterisk displays under the CRC if there are
CRC errors in extended superframe format (ESF) mode.
If the DS-1 is configured for D4 Frame format, the
terminal displa ys N/A.

• BPV - An asterisk displays under the BPV if the DS-1
detects bip olar viol ations .

• SLIP - An asterisk displays under the SLIP if the DS-1
detects frame slip s. T his is c au sed by multiple cloc k
sources in the applic atio n.

• FER - An asterisk displays under the FER if the DS-1
detects frame bit syn chroniza t i on erro rs.

Remote Port

Chapter 4. Status Menu

R

EMOTE PORT

remote port. This is useful for troubleshooting
communication sessions, and for verifying cabling.

• RX -Characters received at remote port

• ID - Unit ID received at remote port

• CRC - Correct CR C receiv e d

• PC - Correct passcode rece ived

• TX - Characters transmitted fro m the remot e port

Clear Po rt Alarm

Clears the L
been removed from the TDU 120e chassis.

displays th e st atus of activit y on the Con tr ol I n

INK FAILED

alarms on option modules that have

4-6 TDU 120e User Manual 61202156L1-1

Ethernet Status

• 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.

Chapter 4. Status Menu

61202156L1-1 TDU 120e User Manual 4-7

Chapter 4. Status Menu

4-8 TDU 120e User Manual 61202156L1-1

Chapter 5

Config uration Menu

The C

ONFIGURATION

configuration, including all network interface parameters,
the allocation of the DS0s, and the port parameters. See the
Figure 5-1 on page 5-2.

Menu flow is normally depicted from left to right. At every
level of the menu, pressing
previous menu level. Press
system to the M

menu sets the TDU 120e operational

returns the system to the

repeatedly to return the

AIN

Escape

Escape

menu.

61202156L1-1 TDU 120e User Manual 5-1

1) FORMAT

2) CODE 1) CONTROL PORT RATE

3) YELLOW ALARM 2) TRAPS

4)TRANSMIT PRMS 3) ACCESS

5) TIMING MODE 4) INIT MODEM

6) UBRiTE 5) CONTROL PORT

6) SET LINE BUILD OUT 6) IP ADDRESS

1) NETWORK (NI) 7) INBAND L00PBACK 7) SUBNET MASK

8) BIT STUFFING 8) DEFAULT ROUTER

2) UNIT 9) SLIP RATE

10) SLIP FLOW CONTROL

3) MAP EXCHANGE OFF 11) PROXY TRAPS

4) MAP IN USE 1) MAP A @:HH:MM
AUTO 2) MAP B @:HH:MM

3) CONFIG 5)DS0 M APS 1) COPY MAP A TO TEMP MAP

2) COPY MAP B TO TEMP MAP

3) CREATE TEMP MAP 1) DSO RATE

4) REVIEW MAP A 2) TX CL K CONTROL

5) REVIEW MAP B 3) DATA

6) REVEIW TEMP MAP 4) CTS

7) EDIT TEMP MAP 5) DCD

8) APPLY TEMP MAP TO MAP A 1) Nx56/64 CONFIG 6) DSR

9) APPLY TEMP MAP TO MAP B 7) “0” INHIBIT

1) Nx/D B U (0.1) 9) TX CLK SOURCE

Chapter 5. Configurat ion Menu

8) INBAND MODE

2) DBU CONFIG 1) BACK UP M ODE

6) PORT CONFIG 2) BACKUP ON

2) DS-1 (0.2) OPTION PORTS 1) FORMAT 3) PATTERN VERIFY

2) CODE 4) BACKUP DELAY

3) YELLOW ALARM 5) RESTORE DELAY

4) LINE LENGTH 6) RETRY DELAY

5) INBAND L00PBACK 7) NUM RETRIES

6) ROB BIT SIGNL 8) BACKUP TESTING 1) BACKUP TEST

7) RBS START 9) W KEND LOCKOUT 2)TEST HOUR

8) RBS END A) EN ABLE HR 3)TEST DAY
B) DISABLE HR
C) TRAP IN DBU

Figure 5-1. Configuration Menu Tree

5-2 TDU 120e User Manual 61202156L1-1

NETWORK (NI)

This menu item acces se s the configura tion of parame ters
associated with the network interface in the base unit. There
are eight submenu items that incl ude 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 (DS-1 Passthrough, etc.).

Network (NI) Menu Items

FORMAT

Sets the frame format for the NI.
Choices: D4 and ESF.

D4 is equivalent to superframe format (SF).

CODE

Sets the line code for the NI.
Choices: A MI and B8ZS.

Chapter 5. Configuration Menu

YELLOW ALARM

Enables and disables the transmitting of yellow alarms.
Choices: ENABLED and DISABLED.

TRANSMIT PRMS

Enables and disables the sending of PRM data on the facility
data link (FDL). The PRM data continues to be collected even
if Transmit PRMS are 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 TDU 120e Clock Sources on page 5-4 for a
description of the timing choices.
Choices: Network, B a se DTE , Base DS- 1, Normal (CSU), U­BR1TE, Interna l, and Secondary (SI).

61202156L1-1 TDU 120e User Manual 5-3

TDU 120e Clock Sources

The TDU 120e 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 Timed

• Base DS-1

• Base DTE Timing

• Internal Timing

• Secondary Timing

• Normal (CSU)

• U-BR1TE

The selected clock option always designates the clock source for
transmission. Clocking necessary for receiving data is always re­covered fro m incoming data.

Chapter 5. Configurat ion 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 a s loop tim ed as the tr ansmission clock is de ri ved
from the received clock. See Figure 5-2.

OSC

T1 XMIT

(DS1)

T1 Receive

Network

Interface

Nx56/64

DTE CLOCK

DTE

DS-1 PBX

PBX

Secondary

Interface

(OPTION)

Figure 5-2. Network Timed Clock Source

5-4 TDU 120e User Manual 61202156L1-1

Chapter 5. Configuration Menu

Based DS-1

The PBX is the source of timing. The TDU 120e uses the clock
derived by the Base DS-1 interface for transmission timing.
See Figure 5-3.

OSC

T1 XMIT

(DS1)

T1 Receive

Network
Interface

(OPTION)

Nx56/64

DTE CLOCK

DTE

DS-1

PBX

Figure 5-3. DS-1 Timed Clock Source

Base DTE Timing

The Base DTE is the source of timing. The TDU 120e uses the
incoming DTE clock to determine the transmission timing.
This is typically used in applications w here it is ne c essa ry to
have the DTE as the primary clock source (such as limited
distance line drivers). See Fi g u re 5-4.

OSC

T1 XMIT

(DS1)

T1 Receive

Network

Interface

Nx56/64

DTE CLOCK

(OPTION)

DS-1

DTE

PBX

Figure 5-4. Base DTE Timing Clock Source

61202156L1-1 TDU 120e User Manual 5-5

Chapter 5. Configurat ion Menu

Internal Timin g

The TDU 120e is the source of timing. The TDU 120e is
configured to us e its o w n in ter na l os cillat o r as th e so u rce of
timing. Applications include priv a te line driver circuits
where one end is set to network and the other to internal. See
Figure 5-5.

OSC

T1 XMIT

(DS1)

T1 Receive

Network

Interface

(OPTION)

Nx56/64

DTE CLOCK

DTE

DS-1

PBX

Figure 5-5. Internal Clock Source

Secondary Timing

The secondary interface is the source of timing. The TDU
120e uses the clock derived by the secondary interface for
transmission timing. See Figure 5-6.

Figure 5-6. Secondary Clock Source

5-6 TDU 120e User Manual 61202156L1-1

Chapter 5. Configuration Menu

Normal (CSU) Timing

The typical timing option arrangement is sho wn in
Figure 5-7. The PBX is looped timed sending data to the TDU
120e which is actually synchronous to the received data. The
Network Interface (NI) is the actual source of all timings.
This timing option is the same as that typically used for
CSUs. This is the preferred mode for use with a PBX
application.

This timing mod e w orks equa ll y w ell whe n the PB X is t he
source of timing. In that conf iguration the network would
not be providing tim ing.

OSC

T1 XMIT

(DS1)

T1 Receive

Network
Interface

(NI)

Nx56/64

DTE CLOCK

DS-1

Secondary

Interface

(SI)

(OPTION)

(IO PB)

PBX

DTE

PBX

Figure 5-7. Normal (CSU) Ti ming

The network interf ace and secon da ry i nterf ace clocking options
are set by using the Network (NI) Configuration menu options.

U-BR1TE

The U-BR 1TE timing selection works like Normal (CSU)
except th at timing is derived from th e U inter f ac e o n po r t 1.1.

Set Line Buildout
Selects the line build-out for the network interface. In A

UTO

mode, the TDU 120e 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, and Auto.

61202156L1-1 TDU 120e User Manual 5-7

Unit Menu

Chapter 5. Configurat ion Menu

In order to activate the -36 dB receiver sensitivity, the LBO
should be set to AU TO. 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 Loopback

Sets unit to acce pt or r ej ect the ne twork inte rf ace l oop-up and
loop-down codes as defined in ANSI T1.403.
Choices: Accept or Reject.

Bit Stuffing

When enabled, bit stuffing causes the TDU 120e to monitor
for ones (1s) density violations and insert a one (1) when
needed to maintain 1s at 12.5%.
Choices: Enable or Disabl e .

The U

menu changes the baud rate of the Control In port

NIT

and the setup of the Dial Out port.

The menu items are:

Control P ort 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: E nable and Disable

Access

Sets the method of co nnec tion fr om the TDU 120e to T-Watch
or SNMP.
Choices:
Direct - Used if connected directly to the PC.
Dial - Used when connection is throug h a modem. T he dial
string is entered from T-Watch or SNMP.

5-8 TDU 120e User Manual 61202156L1-1

Chapter 5. Configuration Menu

Init Modem

Allows you to choose an industry standard or a custom ini­tialization string for a modem connected to the control port.
Choices: Industry standa rd and Custom Initi alization String

Control Port

Selects the TCP/IP physical interface; Normal (10BaseT
Ethernet) or SLIP using the EIA-232 serial port.
Choices: Normal or SLIP

If this option is set to SLIP, the EIA-232 port cannot be used as
a terminal interface.

IP Address

This is the IP address that uniquely identifies the TDU 120e
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.

Subnet Mask

This defines which part of a destination IP address is the Net­work number. It is used along with the TDU 120e IP address
to determine which nodes must be reached through the
default IP Gateway. This value is set to 0.0.0.0 when t h e IP
interface option is set to SLIP.

Default Router

All IP Packets destined for nodes not on the TDU 120e unit’s
local network are not forwarded through this IP address.
Normally, this address defines a router connected to the TDU
120e unit’s local network. This v al ue is ignored when the IP
interface is set to SLIP.

SLIP Rate

This sets the baud rate for the Chain-In port w hen used as the
SLIP connection for SNMP management.
Choices: 1200, 2400, 4800, 9600, 19200, 38400

61202156L1-1 TDU 120e User Manual 5-9

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 traps are forwarded to the IP Inter­face from units being “proxied” for.
Choices: Enable, Disable

Map Excha nge

Chapter 5. Configurat ion Menu

The M

AP EXCHANGE

menu en a b l e s and se ts the auto matic
time of day map switch. The unit provides selection of the
hour, minute, an d secon d s for t he map swi tching to take
place.

The menu items are:

OFF

Indicates the map in use does not c hange. The Automatic
Map Change feature is disabled.

AUTO

Indicates that the map in use will change at a user-selected
time of day. The Automatic Map Change feature is enabled.

Explanation:
When A

is selected, the unit displays the screens to set

UTO

times for switching.

After editing Map A, press

to reco r d th e Map A sett ings

Enter

and activate the selection fields for Map B. Use the same
operation to edit switching time for Map B.

When ESF is used with an FDL channel between units, the
units automatically coord inate the automatic map switch by
sending a map switch command from end-to-end over the
FDL. O nly one end needs to be set to A

for this to work.

UTO

5-10 TDU 120e User Manual 61202156L1-1

Map In Use

This menu item controls the DS0 map the TDU 120e uses and
displays the map in current use.

DS0 Maps

The DS0 maps designate which DS0s are assigned to which
port. The three maps are:

DS0 Map A - Default Map
DS0 Map B - Alternate Map
Temp - Temporary map used as a scratch pad

DS0 Maps Configuration Menu

The DS0 maps configuration menu t akes advantage of the
24-line VT 100 display. Upon entering this menu, the current
Temp (temporary) map displays and is followed by nine
selections tha t you c an use for configuring and reviewing
map information. See Figure 5-8.

Chapter 5. Configuration Menu

TEMP MAP

DS0#

PORT

1

IDLE

2

IDLE

3

IDLE

4

IDLE

5

IDLE

6

IDLE

7

IDLE

8

IDLE

9

IDLE

10

IDLE

11

IDLE

12

IDLE

1) COPY MAP A TO TEMP MAP

2) COPY MAP B TO TEMP MAP

3) CREATE TEMP MAP

4) REVIEW MAP 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

DS0#
13
14
15
16
17
18
19
20
21
22
23
24

PORT
IDLE
IDLE
IDLE
IDLE
IDLE
IDLE
IDLE
IDLE
IDLE
IDLE
IDLE
IDLE

Figure 5-8. DS0 Temp Map

61202156L1-1 TDU 120e User Manual 5-11

You can use the up and down arrows or number keys to
move the cursor from one selection to another. Press
perform the action displayed to the right of the cursor.

Creating a DSO Map

Map configuration involves these steps.

Step Explanation

Intializes the Temp map to one of three configurations

1

(current Map A, current Map B, or all IDLES). This step
is optional.

Edits the Temp map so that it reflects the d esired map

2

configuration.
Replaces the current DS0 map A or B configuration with

3

the Temp map configuration.

Initializing the Temp Map

Upon entering the DS0 maps configuration menu, the Temp
map reflects its last configured state.

Chapter 5. Configurat ion Menu

to

Enter

If you want to ... Enter selections...

initialize the Temp map from its cur-

1 - 2
rent configuration to one which
reflects the currently stored Map A
or B configurations, respectively.

initialize the Tem p map to an all

3

IDLE state.

5-12 TDU 120e User Manual 61202156L1-1

Chapter 5. Configuration Menu

Editing the Temp Map

If further changes to the Temp map are needed, do the
following:

Step Action Explanation

Use selection 7 to enter the

1

Temp ma p edit mode.

Move the cursor from one

2

DS0 to another by using
the up and down arrows.

Press

3
4

Enter.

Use the up and down
arrows or space bar to
scroll through the possible
port selections.

Appl ying the Temp Map

Upon entering this mode, the cursor
location moves to DS0 number one in
the DS0 field of the Temp map.

Locate the DS0 number whose
assigned port needs to be changed.

The curso r will move into the Port field.
To restore the previous por t a ssign-

ment and return to the DS0 field, press

.

ESC

To save the current selected port and
return to the DS0 field, press

Enter

.

When the cursor is again located in the
Temp map DS0 field, press

ESC

a sec­ond time. This causes the cursor to
return to selection 1 bel ow the Temp
map display .

Once the Temp map reflects the desired configuration, use
selections 8 o r 9 to a pp ly this configur a tion to M a p A or B,
respectively.

61202156L1-1 TDU 120e User Manual 5-13

Copying Map

Chapter 5. Configurat ion Menu

T o copy Map A to Map B, copy Map A to the Temp Map; then
apply the Temp Map to Map B. See Figure 5-9.

TEMP

Reviewing Maps

Map A

Map B

Figure 5-9. DS0 Map Designations

Selections 4 thr ou gh 6 gi ve a s ummary of th e number of por ts
assigned to Map A, Map B, and the Temp map, respectively.
The menu items and their descriptions are listed below.

Copy Map A (B) to Tem p Map

Copies the current map A (B) into a TEMP map area. This
permits mo d if i c a ti o n wi th o u t disturbing the existing map.
When the modifications are completed, the TEMP map is
written to current Map A (B) by selecting A

TO MAP

A (B).

PPLY TEMP MAP

Create Temp Map

Creates a map by defining a port or Idle for all DS0s. When

C

REATE TEMP MAP

is fi rs t se l e cted, all DS 0 s are set to I dle.

Possible po rt s e le ct io ns include IDLE, TST, + option module
ports. TST designates which DS0s are used for QRSS testing
when activated under the T

menu. When not used for

EST

testing, the TST designation is identical to IDLE.

Selecting

A

PPLY TEMP MAP TO MAP

will not disrupt the

A(B)

operation of unmodified ports.

5-14 TDU 120e User Manual 61202156L1-1

Review Map A(B)

Permits a quick review of the number of DS0s assigned to
each port and the number of unassigned DS0s (IDLE or TST)
as defined in the currently applied Map A(B).

Review Temp Map
This menu item is operated the same as R

Edit Te mp Map

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 Ma p B.

Apply Temp to Map A(B)

Writes the TEMP m a p in to Map A (B). Apply is usually the
last step in updating a map.

Port Configuration (Port Config)

Chapter 5. Configuration Menu

EVIEW MAP

A (B).

P

ORT CONFIGURATION

is used to select and configure the
parameters associated with any data port in the unit. For
example, parameters for the DS-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 configuration.

The TDU 120e is designed so that any additional ports
developed in the future will contain the appropriate menu
selections t o provide acc ess by use o f t his m enu item .

The C onfigu r ation menus for op tions ports are d e scribed in
separate sections of the manual supplied with the option
card.

Nx/DBU (0.1) Menu Items

Nx/DBU (0.1)

The Nx/DBU port has two main menus:

Nx56/64 config -- Nx operation

61202156L1-1 TDU 120e User Manual 5-15

Chapter 5. Configurat ion Menu

DBU config -- DBU operation

Under Nx56/64 config, the menu items are:

DSO 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 or 64K

TX CLK CNTRL

Controls the clock used by the TDU 120e to accept transmit
(TX) data from the DTE. The default is normal. If the i nterface
cable is long, causing a phase shift in the data, the clock can
be selected as I

. This switches the phase of the clock

NVERT

which should compensate for a long cable.
Choices: Normal, Invert

Data

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 or Inv e rt

If

I

is selected, ze ro (0) inhibi t should also be s elected to pre -

NVERT

vent an open DTE input from placing zeros on the network.

CTS

Used to control character istics of CTS.
Choices: Normal, (see Table 5-1) or Force On

DCD

Data Carrier Dete ct. Ind icat es to the DTE when a valid signal
is being received at the Network Interface.
Choices: Normal (see Table 5-1) or Force On

DSR

Data Set Ready. This signal indicates to the D TE when the
DCE is turned on and ready for operations.
Choices: Normal (see Table 5-1) or Force On

5-16 TDU 120e User Manual 61202156L1-1

Chapter 5. Configuration Menu

“O” 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 TDU 120e will forc e 1s.
Choices: On or Off

INBAND MODE

The Nx56/64 port is capable of providing an inband commu­nications channel (for T-Watch and SNMP) between units.
This is ac com plis he d 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 destinat io n port.
Choices: On or Off, On Demand

TX CLK SOURCE

Controls the source of the clock used by the TDU 120e to
accept transmit data from the DTE.
Default: I nternal.

If the application requires that the DTE device provide the
clock wi th th e tr a nsmit data , the E

XTERNAL

setting is used.

Choices: I nternal, External

Table 5-1. Normal Mode of Operation

RTS V.54

Loopback
CTS Follows OFF OFF OFF OFF OFF
DCD — — OFF — OFF OFF
DSR — OFF OFF OFF OFF —
Where “—” = don’t care
Force On = On under all condition s

511 TST ONSelf Test

Active

Netwk T est
Active

No DS0
Mapped

Network
Alarm

This table indicates conditions which cause the Por t Co nt rol
Signals to b e de activ a te d .

61202156L1-1 TDU 120e User Manual 5-17

Dial Backup Configuration

Under Dial Backup (DBU) configuration, the menu items are:

Backup Mode

In a backup condition, both ends of the circuit must detect
backup conditions before backup is activated. One DBU is set
to O

RIGINATE

ure, only the Originate DBU initiates b a ckup by dialing th e
Answer end. Once called, the Answer DBU goes into backup
mode only if a backup condition is detected. This is ideal for
controlling where calls originate.
Choices: D isable, Ori g inate, Answer

Backup On

Selects the conditions tha t ca use the Nx/DBU to initiate
Backup.

NET F AIL

Back up occ urs on RED AL ARM, 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.

and the other to A

Chapter 5. Configurat ion Menu

. Up on a netw ork fail-

NSWER

Pattern Verify

Selects whether the DBU will use its pattern generator and
recei ver to au then tica te b ackup att empts . When the local and
remote un its are both Nx/DBUs, set to E
to D

ISABLE

.

; otherwise set

NABLE

Choices: Enable, Disable

Backup Delay

Selects the time allowed to el apse between the network 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

5-18 TDU 120e User Manual 61202156L1-1

Chapter 5. Configuration Menu

Restore Delay

Selects the time that elapses between the network going out
of alarm or data and the backup call being taken down. If

N

is selected, the user must deactivate the backup mode.

EVER

Choices: 1 sec, 3 sec, 10 sec, 30 sec, 1 min, 5 min,
10 min, never

Retry Delay

Selects the time between redialing the external DCE after
failed dial attempts.
Choices: 10 sec, 30 sec, 1 min, 5 min, 10 min

Num Retries

Selects the number of times the DBU will attempt to redial if
unable to connect.
Choices: None, unlimited, 3 t imes, 10 times.

Backup Testing

Selects the options for the automatic ISDN verification fea­ture of the Nx/DBU. Verification of the backup circuit does
not disrupt data on the T1.

Backup Test: Selects the frequency of automatic backup cir­cuit verification by the DBU.
Choices: Manual, Hourly, Daily, Weekly

Test Hour : Selects the hour of t he da y the Backup test will
occur.
Choices: 0-23

Test Day: I f week ly Backup test is selecte d, selects which d ay
to perform the test.
Choices: Mon day - Sunday

WKEND Locko u t

If no backup is desired from midnight Friday to midnight
Sund a y, set thi s se le ction on ON; otherwise set to OFF.
Choices: ON, OFF

Enable HR: The hour backup will be enabled. Enter from the
numeric keyboard.
Choices: 0-23

61202156L1-1 TDU 120e User Manual 5-19

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 TDU are set correctly. See Time/Date on page 6-2 for in­formation on setting the time and date.

Trap in DBU: If traps are enabled (see Unit configuration),
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

DS-1 (0 .2) Menu Items

Format

Format sets the frame format for the base DS-1 interface.
Choices: D 4 , ESF

Code

Code sets the line code for the base DS-1 interface.
Choices: AMI, B8ZS

Chapter 5. Configurat ion Menu

Yellow Alarm

Y ellow Alarm enables and disables the transmitting of yellow
alarms.
Choices: Enable, Disable

Line Length (ft)

Line Length provides selection of the proper output level for
the base DS-1 based on the length of the interface cable.
Choices:
Short haul interfaces (ft) - 1-133, 133-266, 266-399, 399-533,
533-655
Long-haul interfaces - 0dB -7dB, -15dB, -22dB, auto

5-20 TDU 120e User Manual 61202156L1-1

Chapter 5. Configuration Menu

Inband Loopback (INBANK LPBACK)

In-band Loopback sets the base DS-1 to accept or reject in­band loop-up or loopdown codes (per ANSI T1.403 specifica­tion) which may be sent to the card over the DS-1 interface.
This loopb a ck is a line loopback.
Choices: Accept, Reject

Robbed Bit Signaling

This menu optio n is used to ena ble/disable robbed-bit
signaling.

Whenever the base DS-1 interface is connected to terminal
equipment (for example, PBX/SW56) for voice or dialed data
services, this option should be enabled.

Exception: When the terminal equipment is using a form of
common channel signaling (for example, PRI).

For applications requiring robbed-bit signalling as well as a
messaging ch anne l (such as some propri et ary PBX c hanne ls),
the ON: ENA BLOCK selection is provided.
Choices: OFF, ON: ALL DSOs, ON: ENA Block

RBS Start
When Robbed Bit Signaling option is set to ON: ENA B

LOCK

this item defines the first DS0 to extract signaling from.

,

RBS End

When the Robbed Bit Signaling option is se t to ON: ENA
Block, this item defines the last DS0 to extract signaling from.
Example: RBS Start and RBS End together define a block of
DS0s for Robbed Bit Signaling.

61202156L1-1 TDU 120e User Manual 5-21

Chapter 5. Configurat ion Menu

5-22 TDU 120e User Manual 61202156L1-1

Chapter 6

Utility Menu

3) UTIL

The U

menu tree displays and sets system parameters.

TILITY

See Figure 6-1. This includes setting the time and date,
resetting all parameters to factory v alues, or re-initiating the
unit. This menu also displays the unit software revision and
the unit ID setting.

TIME: HH:MM:SS

1) TIME/DATE DATE: MM/DD/YY

(Returns all configur atio ns

2) FACT RESTORE to factory settings)

3) SET PASSCODE NEW PASSCODE VERIFY PASSCODE

4) UNIT ID

5) SOFTWARE REVISION (Displays Curr ent
Software Revision

6) PORT UTILITY NX/DBU (0.1)
DS-1 (0 .2)

7)ETHERNET ADDRESS (OPTION PORTS)

Figure 6-1. Utility Menu Tree

Menu flow is normally depicted from left to right. At every
level of the menu, press

Escape

previous menu level. Pressing
system to the M

61202156L1-1 TDU 120e User Manual 6-1

AIN

menu.

to return the system to the

Escape

repeatedly returns the

Time/Date

If you want to... Do this...

Chapter 6. Utility Menu

This menu option displ ays or edit s th e cur re nt ti me and date.
The TDU 120e maintains the time and date during power-off
conditions.

Record a numeric
change

Move to a different field
to edit

End the editing proces s Press

Factory Restore

This menu item restores the factory default settings for all
unit parameters, including configured DS0 maps. The control
port rate, Passcode, Unit ID, and IP parameters are not
affected by the Factory Restore command.

A factory reinitializat ion can be exec uted by holding the
ACO button down during power up. All factory options
including control port rate, Pass code, Unit ID, and IP
parameters are restored to factory settings with this
procedure. During a factory reinitialization, the Remot e LE D
will turn on. The Remote LED will turn off after the factory
reinitialization is complete. The ACO button may be released
at this time.

Press
moves to the next editin g position).

Press
making any changes, or
use the up and down arrow keys.

(this records the entry and

Enter

at the editing position without

Enter

Escape.

6-2 TDU 120e User Manual 61202156L1-1

Set Passcode

Change/Set a Passcode

The passcode can be changed or set at any time or elimin ate d
altogether th rough S

The passcode can be numeric only . After entering the desired
passcode, press

ET PASSCODE

.

Enter

on the U

Chapter 6. Utility Menu

menu.

TILITY

Set a null passcode at the S

Enter

grants unlimite d acces s.

Lost Passcode

If the passcode number is lost, contact ADTRAN Customer
Service for assistance.

No Passcode Desired

At the New Passcode prompt (in the S
press
the need to enter a password for subsequent use and
proceeds to the Unit ID prompt.

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.

Unit ID

This menu is used to access the current Unit ID setting.
Viewing is available in limited access m o de. E dit ing or
changing the Unit ID requires the use of a password as in
editing mode. Un it Identific ation nu mbers must be be tween
2 and 999. If an out-of -range number is entered, the unit
assumes the upper limit number of 999.

ET PASSCODE

menu by pressing

without any numbers. This sets a null passcode and

ET PASSCODE

without any numerical entry. The system nullifies

Enter

menu),

61202156L1-1 TDU 120eUser Manual 6-3

To Set the Unit Identification

Chapter 6. Utility Menu

In the U
between 2 and 999. The number 1 is reserved for the PC.

Pressing
availability for operation by remote control. The unit
proceeds to the S

No Unit ID Desired

Without ente ring any numbers at the U

. Pressing

Enter

unit as not able to be operated by remote control.

Software Revision

This menu provides access to the display of the current
software 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

Escape

Port Utility

This menu provides access to the display of the curren t soft­ware information for each port installed in the unit. This
information is required when requesting assistance from
ADTRAN customer service or when updates are needed.

ID menu under the UTIL menu, e nter any value

NIT

records the Unit ID number and establishes its

Enter

ET CONTROL PORT

with no Unit ID recorded e stablishes the

Enter

prompt.

ID prompt, press

NIT

to exit.

Ethernet Address

Displays the Ethernet Mac address for the 10BaseT port.

6-4 TDU 120e User Manual 61202156L1-1

Chapter 7

Test Menu

The T
plays test resul ts. The T

menu initiates different types of unit tests and dis-

EST

menu con t a i ns fo ur i tems. Se e F i g -

EST

ure 7-1.

LINE ON

1) NETWORK INTR LBKS PAYLOAD ON ATT INBAND LLB

1) NETWOR K TESTS 2) LOCAL LOOPBCK NO LOOPBACK ANSI FDL LLB

3) REMOTE LOOPBCK ANSI FDL PLB

ALL ZEROS

TEST 3) TEST PATTERN QRSS ALL DS0S

QRSS TST DS0S
ALL ONES
NONE

4) PATTERN RESULT (display results)

2) RUN SELFTEST (displays results) 1) DTE LOOPBACK

2) 511 PATTRN

3) PORT TEST NX/DBU (0.1) 3) 511 RESULTS (displays results)

4) DBU LOOPBACK

4) CANCEL TESTS 5) DBU TEST TESTS OFF

FT1 LOOPBACK
NO LOOPBACK

INTERFACE TST
FORCE BACKUP

6) DBU DATA CNTRL (display results)

7) DBU TST RESULT (display results)

DS-1 (0.2) 1) LOOPBACK
(OPTION PORTS)

Figure 7-1. Test Menu Tree

61202156L1-1 TDU 120e User Manual 7-1

Executing t e sts will disrupt some of the normal operation.
See individual menu items concerning tests before executing.

Menu flow is normally depicted from left to right. At every
level of the menu, pressing
previous menu level. Pressing
system to the Main menu.

Network Tests

Network tests control the activation of loopbacks and the
initiation 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 Network Tests will disrupt normal data flow
unless only TST DS0s are selected for testing.

Loopback Tests

Escape

Escape

Chapter 7. Test Menu

returns the system to the

repeatedly returns the

A number of differ e nt loopba ck s can be invoked locall y from
the front panel, by T-Watch commands, or remotely by using
special in- band codes (AT&T D4 network loop-up and loop­down codes). Additionally, the loopbacks can be remotely
control l ed by mea ns of o ut-of - band co mman ds by the T1 ESF
FDL or from T-Watch PRO by a mode m connection.

Network Interface Loopbacks

Network interface loopbacks affect the entire T1 data stream.
See Figure 7-2 on page 7- 3. The two types of network
loopbacks are:

Line

Loops all of the received data back toward the netwo rk. The
transmitted data is the identical line code that was received,
including any bipolar violations or fram ing e rrors.

7-2 TDU 120e User Manual 61202156L1-1

DS1

Local Loopbck

Chapter 7. Test Menu

Payload

Similar to line loopback, except that the framing is extracted
from the received data and then regenerated for the transmit­ted data.

TDU 120e

NI CSU

Secondary

Interface

Payload Loopback

Line Loopback

Figure 7-2. Network Loopback Tests

There are three available choices for setting the local
loopback.

Line On

Activates th e line loopback.

Payload On

Activates the payload loopback.

No Loopback

Deactivates the loopback. Scroll to select a setting and press

to re co rd the setting.

Enter

Remote Loopback

Activates the same loopbacks as Local Loopback, but at the
far end. Uses e it h e r the inband loop-up co de as s p ecified 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:

61202156L1-1 TDU 120e User Manual 7-3

Chapter 7. Test Menu

ATT In-Band LLB

Activates th e line loopback using inband code.

ANSI FDL PLB

Initiates the transmission of an FDL payload loopup code
toward the far end.

ANSI FDL LLB

Initiates the transmission of an FDL line loopup code toward
the far end.

ANSI FT1 LLB

Initiates the transm ission of a FT1 loopbac k us ing t he inband
code des c ribed in T1.403.

No Loopback

Deac ti vates t h e loopback.

Remote Loopback can only be used with Fractional T1 if the ANSI
FT1 LLB is selected.

Afte r a R

EMOTE LOOPBACK

option is selected, the TDU 120e
verifies 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 terminal dis­plays the loopback progress by displaying Looping until
loopback is verified.

Test Pattern

All Ones

Sends an all ones pattern to the network.

All Zeros

Sends an all zero s pattern to the network.

7-4 TDU 120e User Manual 61202156L1-1

Chapter 7. Test Menu

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 t he patt ern for th e tes t and init iate s the tr ansmi ss ion
of the pattern. The test is terminated by selecting None.

The following patterns are available:

QRSS All DS0 s - Generates a QRSS test pattern and inserts
the pattern into all DS0s.

QRSS TST DS0s - Inserts a QRSS pattern in those DS0s
mapped as TST in the currently active map (A or B).

None - Terminates pattern generation.

QRSS always runs at 64K/DS0.

For an example, perform the following steps:

Step Action

1
2

Select QRSS ALL DS0s.
Press

to record the selection. The TDU 120e starts

Enter

to generate a QRSS test pattern and inserts the pattern
into all DS0s.

3

61202156L1-1 TDU 120e User Manual 7-5

To end the test, select N

ONE

.

Pattern Result

Chapter 7. Test Menu

Displays t he re su lts of t he te st cu rr en tly a ct ive . The pr ocess of
leaving and returning to this menu item does not interrupt
the test.

Pressing 2 injects errors into the test pattern. These errors are
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 i f patter n sync is (yes) or i s not (no) valid . The aster­isk (*) indicates if pattern sync has been lost since the start of
testing.

Clear results by pressing C. The results are accumulated until
the test pattern is set to N

ONE

or C

LEARED

.

Using TST DS0s for testing can be very useful, particularly in
Fractional T1 applications.

7-6 TDU 120e User Manual 61202156L1-1

Chapter 7. Test Menu

To run an end-to-end test on Fractional DSOs, complete the
following steps:

Step Action

Run Self-Test

The self-test checks the integrity of the internal operation of
the electronic components by perfor ming m emory 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 interfac es in place and will not distu rb any
external interface.

The memory portion of the self-test automatically executes
upon power-up.

1

2

A single DS0 can be used for continuous testing while other DS0s
are passing normal da ta. This wil l also provide an e nd 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 selecti on.

Set for Map B the TST in the same DS0 as
used by Map A to receive data from an
Nx56/64 port

Loop the far end using a V.54 loopback
code on the Nx56/64 port.

A full self-test can be commanded from terminal/telnet
menu or from T-Watch PRO.

In addition to the specified self-tests, background tests are
run on various parts of the internal electronics. These run
during nor mal 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 on the terminal.

61202156L1-1 TDU 120e User Manual 7-7

Chapter 7. Test Menu

Upon invoking th e co mmand, the terminal displays S
S

ELF-TEST

and the Test LEDs are illumina ted. Te s t f ail u res

are displayed on the terminal.

The self-test consists of the following:

Test Name What it does...

Board level
tests

Each of the TDU 120e boards contains an on­board processor which executes the following
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)

Unit level tests Unit level tests consist of:

Front panel LED verification
Phase Lock Loop verify
Board-to-board interface test

A test pattern is sent fro m the controll er throu gh a loopback
on all other boards and is checked on the con trolle r. This
verifies the data path, clocks, and control signals.

YSTEM

If a failure is detected, note the failure number prior to
contacting ADTRAN Technical Support.

The execution of the self-test will disrupt normal data flow
and prevent remote communication until the self-test is
completed.

Port Tests

The P

ORT TESTS

data ports. I t control s the act ivation of loopbacks and the
initiation of data test patterns. Test results are displayed on
the terminal screen.

7-8 TDU 120e User Manual 61202156L1-1

menu is used to activ a te testing of specific

The execution of Port Tests will disrupt normal data flow in the
port tested.

Port Test Menu Items Nx/DBU (0.1)

Nx/DBU (0.1) is the base Nx interface. It offers the following
test functions:

DTE LOOPBACK

This initiat es a loopbac k. The follo w ing op tio ns a re available:

PORT/LOCAL

The Nx port acti va tes both a Loc al l oopbac k (bac k towa r d th e
DTE) and a Port loopback when either is invoked.

REMOTE

The remote loopback causes a channelized V.54 code to be
sent to the far end. Th e Nx at the far end activates a PORT/
LOCAL loopback upon detection of the V.54 code.

Chapter 7. Test Menu

OFF

The loop is deactivated.

REM V.54 Cont.

The r emot e l oo pb ack cau se s a con tin uou s V.54 code to be se nt
to the far end. The Nx at the far end activates a PORT/
LOCAL loopback upon detection of the V.54 code.

The TDU 120e checks the remote loopback activation by detecting
a proper response from the remote end. While waiting for the re­spo nse, t he display s hows
changes to

F

AILED

61202156L1-1 TDU 120e User Manual 7-9

L

.

OOPED-UP

L

OOPING

. If unsuccessful, the display shows

. If successful, the display

Chapter 7. Test Menu

511 PATTRN

Activates the generation of the 511 test pattern.

ON

The pattern check circuitry is enabled and a test started. The
test is ended by selecting OF F.

OFF

The pattern generation and check is disabled.

511 RESULTS

Displays the r e sul ts o f the 511 test indicated i n th e 51 1 option .
The results are in the form of the number of errored seconds.
The error count can be cleared by pressing C.

DBU LOOPBACK

ON

Initiates a loopback from the DBU towards the external DCE.

OFF

Terminates the loopback test.

DBU TEST

This selection is used to force a backup to occur even if a
backup conditio n do es not exist.

TEST OF F

Turns off DBU tests.

FORCED BACKUP

Forces a backup regardless of time-of-day lockouts or net­work conditions.

INTERFACE TST

Causes the ext ernal DC E to dial its s tored number. After the
connection is estab li shed , the DBU sends a test patt ern to ver­ify the backup ne twork . This tes t does not di sru pt data or th e
primary network.

7-10 TDU 120e User Manual 61202156L1-1

DBU DATA/CNTRL

Allows status of DCD and RI to be monitored while the
INTERFACE TST is on. If the d ia l up ne twork is co rrectly
configured and dialed up, there shoul d be an asterisk (*) over
DCD.

DBU TST RESULT

When an in terface test is active, this screen will show the
total number of DATA blocks received and the number of
bloc ks w i th errors.

DS-1 (0-2) Option Ports

Loopback

Loopback activates the loopback function on the base DS-1
interface. The available loopbacks are:

Port Loopback

Tow ards the NI.

Line Loopback

Towards the PBX or other terminal equipment.

Cancel Tests

Chapter 7. Test Menu

Use this menu selection to d e activate all active tests ,
including tests on option modules.

61202156L1-1 TDU 120e User Manual 7-11

Chapter 7. Test Menu

7-12 TDU 120e User Manual 61202156L1-1

Chapter 8

Remote/Management
Menus

The R

EMOTE/MANAGEMENT

sessions with remote devices and displays various
management information.

menu initiates telnet/terminal

REMOTE MENU ACCESS

This menu displays telnet menus for a remote device (may be
another TSU/TDU or any other ADTRAN product that
supports telnet via its EIA-232 chain port). After selecting
this option, the user may choose to connect to a device
entered in the Unit Access Table or enter a unit ID for a unit
not in the Unit Acc ess Table. Press CTRL + X to termin ate the
session and return to the TDU 120e Main menu.

MANAGEMENT CONFIGURATION

This menu sets mana gement information, such as SNMP
community names an d t rap destination addresses.

UNIT ACCESS TABLE

• This menu edits/creates 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 Figure 8-1 on page 8-2).

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 D

U

NIT PASSCODE

, or the unit is a sin gle p o rt TSU Standalone.

EFAULT

61202156L1-1 TDU 120e User Manual 8-1

Chapter 8. Remote/M an agement M en us

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-Wa tch Pro over TCP/IP use the unit ID
and passcode set by T-Watch Pro running on the PC.

____________________________Unit Access Table________________________
Unit ID Passcode Type Polled Poll Status
20

3
6
8

1) Add New Unit

2) Modify Unit

3) Delete Unit

4) Default Unit Passcode

DEFAULT
0033
0095
0022

Standard
Standard
TSU Standalone
Standard

0022

No
Yes
No
Yes

UP

UP

5) OK

Figure 8-1. Unit Access Table

Table 8-1 on page 8-3 describes each command of the Unit
Access Table.

8-2 TDU 120e User Manual 61202156L1-1