ADTRAN Network Card TDU 120e User Manual

TDU 120e  
User Manual  
Part Number  
1202156L2  
1202155L2  
September 2001  
61202156L2-1C  
 
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 precau-  
tions 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 cus-  
tomer 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 net-  
work or premises wiring using a compatible 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 Com-  
pany may discontinue 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 company may make changes in its facilities, equipment, oper-  
ations, or procedures that could affect the proper operation of your equip-  
ment. If they do, you will be given advance notice so as to give you an  
opportunity to maintain uninterrupted service.  
5. If you experience trouble with the equipment TDU 120e, please contact ADT-  
RAN at (256) 963-8000 for repair/warranty information. The telephone com-  
pany 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 mal-  
functioning.  
6. This unit contains no user serviceable parts.  
7. The following information may be required when applying to your local tele-  
phone company for leased line facilities.  
Service Type  
REN/SOC  
6.0N  
FIC  
USOC  
1.544 Mbps -SF  
04DU9-BN  
04DU9-DN  
04DU9-1KN  
04DU9-1SN  
RJ-48C  
RJ-48C  
RJ-48C  
RJ-48C  
1.544 Mbps - SF and B8ZS  
1.544 Mbps - ESF  
6.0N  
6.0N  
1.544 Mbps - ESF and B8ZS  
6.0N  
8. The FCC recommends that the AC outlet to which equipment requiring AC  
power is to be installed is provided with an AC surge arrester.  
iv  
 
Affidavit Requirements for Connection to Digital Services  
An affidavit is required to be given to the telephone company whenever digi-  
tal terminal equipment without encoded analog content and billing protec-  
tion is used to transmit digital signals containing encoded analog content  
which are intended for eventual conversion into voice band analog signal and  
transmitted on the network.  
The affidavit shall affirm that either no encoded analog content or billing  
information is being transmitted or that the output of the device meets Part 68  
encoded analog content or billing protection specification.  
End use/customer will be responsible to file an affidavit with the local  
exchange carrier when connecting unprotected CPE to a 1.544 Mbps or sub-  
rate digital service.  
Until such time as subrate digital terminal 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 Digital Services  
For the work to be performed in the certified territory of ______________ (telco  
name)  
State of ________________________________  
County of ______________________________  
I, _______________________ (name), ____________________ (business address),  
_____________________ (telephone number) being duly sworn, state:  
I have the responsibility for the operation and maintenance of the terminal equip-  
ment 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 encoded analog content and billing protection specifica-  
tion. With respect to encoded analog content and billing protection:  
( ) I attest that all operations associated with the establishment, 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 digital CPE does not transmit digital signals containing encoded analog  
content or billing information which is intended to be decoded within the tele-  
communications network.  
( ) The encoded analog content and billing protection is factory set and is not  
under the control of the customer.  
I attest that the operator(s) maintainer(s) of the digital CPE responsible for the  
establishment, maintenance and adjustment of the encoded analog content and  
billing information has (have) been trained to perform these functions by success-  
fully having completed one of the following (check appropriate blocks):  
( ) A. A training course provided by the manufacturer/grantee of the equipment  
used to encode analog signals; or  
( ) B. A training course provided by the customer or authorized representative,  
using training materials and instructions provided by the manufacturer/grantee  
of the equipment used to encode analog signals; or  
vi  
 
( ) C. An independent training course (e.g., trade school or technical institution)  
recognized by the manufacturer/grantee of the equipment used to encode analog  
signals; or  
( ) D. In lieu of the proceeding training requirements, the operator(s)/main-  
tainer(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 documenta-  
tion 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, and  
can radiate radio frequency energy and, if not installed and used in accordance  
with the instruction manual, may cause harmful interference to radio frequencies.  
Operation of this equipment in a residential area is likely to cause harmful inter-  
ference in which case the user will be required to correct the interference at his  
own expense.  
Shielded cables must be used with this unit to ensure compliance with Class A  
FCC limits.  
Change or modifications to this unit not expressly approved by the party  
responsible for compliance could void the user’s authority to operate the  
equipment.  
Canadian Emissions Requirements  
This digital apparatus does not exceed the Class A limits for radio noise emissions  
from digital apparatus as set out in the interference-causing equipment standard  
entitled “Digital Apparatus," ICES-003 of the Department of Communications.  
Cet appareil nuerique respecte les limites de bruits radioelectriques applicables  
aux appareils numeriques de Class A prescrites dans la norme sur le materiel  
brouilleur: "Appareils Numeriques," NMB-003 edictee par le ministre des Com-  
munications.  
viii  
 
Canadian Equipment Limitations  
Notice: The Canadian Industry and Science Canada label identifies certified  
equipment. This certification means that the equipment meets certain telecom-  
munications network protective, operational, and safety requirements. The  
Department does not guarantee the equipment will operate to the user’s satisfac-  
tion.  
Before installing this equipment, users should ensure that it is permissible to be  
connected to the facilities of the local telecommunications company. The equip-  
ment must also be installed using an acceptable methods of connection. 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 degradation of service in some situations.  
Repairs to certified equipment should be made by an authorized Canadian main-  
tenance facility designated by the supplier. Any repairs or alterations made by the  
user to this equipment, or equipment malfunctions, may give the telecommunica-  
tions company cause to request the user to disconnect the equipment.  
Users should ensure for their own protection that the electrical ground connec-  
tions of the power utility, telephone lines and internal metallic water pipe system,  
if present, are connected together. This precaution may be particularly important  
in rural areas.  
Users should not attempt to make such connections themselves, but  
should contract the 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 overloading. The termination on a loop may consist of any combina-  
tion of devices subject only to the requirement that the total of the Load Numbers  
of all devices does not exceed 100.  
ix  
 
Limited Product Warranty  
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 applica-  
ble 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 Customer gives ADTRAN written notice of defects during the warranty  
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 original purchaser and is not transferable without ADTRAN's  
express written permission. This warranty becomes null and void if Customer  
modifies or alters the equipment in any way, other than as specifically authorized  
by ADTRAN.  
EXCEPT FOR THE LIMITED WARRANTY DESCRIBED ABOVE, THE FOREGO-  
ING CONSTITUTES THE SOLE AND EXCLUSIVE REMEDY OF THE CUS-  
TOMER AND THE EXCLUSIVE LIABILITY OF ADTRAN AND IS IN LIEU OF  
ANY AND ALL OTHER WARRANTIES (EXPRESSED OR IMPLIED). ADTRAN  
SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, INCLUDING (WITH-  
OUT LIMITATION), ALL WARRANTIES OF MERCHANTABILITY AND FIT-  
NESS FOR A PARTICULAR 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 inciden-  
tal, special, punitive, exemplary or consequential damages experienced by either  
Customer or a third party (including, but not limited to, loss of data or informa-  
tion, 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. Some states do not allow the limitation or exclusion of  
liability for incidental or consequential damages, so the above limitation or exclu-  
sion may not apply to Customer.  
x
 
Customer Service, Product Support Information, and Training  
ADTRAN will replace or repair this product within five years from the date of  
shipment if the product does not meet its published specification, or if it fails while  
in service.  
A return material authorization (RMA) is required prior to returning equipment to  
ADTRAN. For service, RMA requests, training, or more information, see the toll-  
free contact numbers given below.  
Presales Inquiries and Applications Support  
Please contact your local distributor, ADTRAN Applications Engineering, or  
ADTRAN Sales:  
Applications Engineering (800) 615-1176  
Sales  
(800) 827-0807  
Post-Sale Support  
Please contact your local distributor first. If your local distributor cannot help,  
please contact ADTRAN Technical Support and have the unit serial number avail-  
able.  
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  
(888) 874-2237  
xi  
 
Repair and Return  
If ADTRAN Technical Support determines that a repair is needed, Technical Sup-  
port will coordinate with the Custom and Product Service (CAPS) department to  
issue an RMA number. For information regarding equipment currently in house  
or possible fees associated with repair, contact CAPS directly at the following  
number:  
CAPS Department  
(256) 963-8722  
Identify the RMA number clearly on the package (below address), and return to  
the following address:  
ADTRAN Customer and Product Service  
901 Explorer Blvd.  
Huntsville, Alabama 35806  
RMA # _____________  
Training  
The Enterprise Network (EN) Technical Training offers training on our most popu-  
lar products. These courses include overviews on product features and functions  
while covering applications of ADTRAN's product lines. ADTRAN provides a vari-  
ety of training options, including customized training and courses taught at our fa-  
cilities or at your site. For more information about training, please contact your  
Territory Manager or the Enterprise Training Coordinator.  
Training - phone  
Training - fax  
(800) 615-1176, ext. 7500  
(256) 963-6700  
Training - email  
xii  
 
OCU DP ................................................................................................1-4  
DSU DP .................................................................................................1-4  
Dial backup ..........................................................................................1-4  
U-BR1TE ...............................................................................................1-4  
Customer Provides .............................................................................................2-2  
Power Connection .....................................................................................................2-2  
AC Powered Units ...............................................................................2-2  
DC Powered Units ...............................................................................2-2  
Grounding Instructions ............................................................................................2-3  
Identification of Rear Panel Layout ........................................................................2-5  
TDU 120e Interfaces............................................................................................2-6  
61202156L2-1  
TDU 120e User Manual  
xiii  
 
Table of Contents  
Network Interface ......................................................................................2-6  
Flash Download ..................................................................................3-7  
Quit Session .........................................................................................3-7  
Front Panel .................................................................................................................3-7  
ACO Switch.........................................................................................................3-8  
Remote LED ........................................................................................................3-8  
Craft Port .............................................................................................................3-8  
Network Monitor Jack .......................................................................................3-8  
xiv  
TDU 120e User Manual  
61202156L2-1  
 
Table of Contents  
DS1 Monitor Jack ................................................................................................3-8  
Port Status LEDs .......................................................................................3-10  
RX ...........................................................................................................4-7  
ID ...........................................................................................................4-7  
CRC ........................................................................................................4-7  
PC ...........................................................................................................4-7  
TX ...........................................................................................................4-7  
Clear Port Alarm.................................................................................................4-8  
Ethernet Status ....................................................................................................4-8  
61202156L2-1  
TDU 120e User Manual  
xv  
 
Table of Contents  
TX ..........................................................................................................4-8  
DS0 Map A and DS0 Map B............................................................................5-17  
DS0 Map A .........................................................................................5-17  
DS0 Map B ..........................................................................................5-17  
Temp ...................................................................................................5-17  
DS0 Maps Configuration Menu ......................................................5-18  
Creating a DSO Map .........................................................................5-19  
Initializing the Temp Map ...............................................................5-19  
xvi  
TDU 120e User Manual  
61202156L2-1  
 
Table of Contents  
Editing the Temp Map ......................................................................5-20  
MAC Address......................................................................................................6-4  
Chapter 7. Test Menu ..............................................................................................7-1  
Test ..............................................................................................................................7-1  
Network Tests .....................................................................................................7-2  
Loopback Tests....................................................................................................7-2  
Network Interface Loopbacks ...................................................................7-3  
61202156L2-1  
TDU 120e User Manual  
xvii  
 
Table of Contents  
Line ........................................................................................................7-3  
DBU TST RESULT .............................................................................7-11  
DS-1 (0.2) Menu Items .............................................................................7-11  
Loopback ............................................................................................7-11  
Cancel Tests.......................................................................................................7-11  
Chapter 8. Remote/Management Menus.............................................................8-1  
Remote Menu Access ...............................................................................................8-1  
xviii  
TDU 120e User Manual  
61202156L2-1  
 
Table of Contents  
Management Configuration ....................................................................................8-1  
XMODEM .............................................................................................8-6  
Quit Session .........................................................................................................8-7  
Appendix A. Understanding SNMP .................................................................. A-1  
Appendix B. Connector Pinouts.......................................................................... B-1  
Appendix C. System Messages ........................................................................... C-1  
Appendix D. Specifications ................................................................................ D-1  
Index ................................................................................................................. Index-1  
61202156L2-1  
TDU 120e User Manual  
xix  
 
Table of Contents  
xx  
TDU 120e User Manual  
 
61202156L2-1  
Figure 5-10. DS0 Temp Map ..................................................................................5-18  
Figure 5-11. DS0 Map Designations .....................................................................5-21  
Figure 6-1. Utility Menu Tree ..................................................................................6-1  
Figure 7-1. Test Menu Tree.......................................................................................7-1  
Figure 7-2. Network Loopback Tests......................................................................7-3  
Figure 8-1. Unit Access Table ..................................................................................8-2  
61202156L2-1  
TDU 120e User Manual  
xxi  
 
 
List of Figures  
xxii  
TDU 120e User Manual  
61202156L2-1  
 
List of Tables  
Table B-6. V.35 Pinout for Nx56/64 DTE .............................................................B-5  
Table B-7. Base DS-1 Pinout of the 8-Pinout Modular Connector ....................B-6  
Table B-8. Base DS-1 Pinout of the 15-Pin Female D-Connector.......................B-7  
Table B-9. 10BaseT Ethernet Connector................................................................B-8  
Table B-10. External Alarm Device Connector ....................................................B-8  
Table B-11. Power Connector (DC powered units).............................................B-8  
612022156L2-1  
TDU 120e User Manual  
xxiii  
 
 
List of Tables  
xxiv  
TDU 120e User Manual  
612022156L2-1  
 
Chapter 1  
Introduction  
TDU 120e OVERVIEW  
The TDU 120e is a T1/FT1 multiplexer with the following  
features:  
Nx56/64 V.35 data port  
DS-1 (PBX) interface  
option slot  
embedded SNMP management  
The TDU 120e’s option slot accepts one of many available  
option modules for voice and data applications.  
The TDU 120e serves as the link between user data sourc-  
es such as:  
local area network (LAN) bridges 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  
not disrupt data flow in channels that are not being recon-  
figured. The unique architecture and the availability of  
61202156L2-1A  
TDU 120e User Manual  
1-1  
 
   
Chapter 1. Introduction  
option modules provides a path for growth to accommo-  
date future requirements.  
The TDU 120e offers a wide variety of network manage-  
ment options. The 10BaseT and control ports are compat-  
ible with both SNMP and T-Watch PRO management. An  
enhanced VT-100 terminal interface is also provided.  
1-2  
TDU 120e User Manual  
61202156L2-1A  
 
Chapter 1. Introduction  
Standard Features in the TDU 120e  
The following list describes the standard features in the  
enhanced TDU 120e.  
A single T1 interface.  
An Nx/DBU V.35 port and a DS-1 (PBX) interface.  
An inband communication channel requiring only 8k  
of bandwidth from a single DS0.  
One option slot to house option modules with up to  
four additional ports, including voice and data.  
Allows mix of port types to meet the data interface re-  
quirements.  
Easy configuration capabilities using simplistic  
menus displayed on a terminal or computer connect-  
ed to the control port on the rear of the unit or the  
craft port 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 from a second-  
ary interface.  
QRSS; 511 test patterns using Nx option.  
Extensive self-testing and monitoring provides assur-  
ance of proper operation.  
SNMP, Telnet, and T-Watch PRO management via  
SLIP or 10-BaseT  
Ability to proxy for “agentless” units  
Enhanced terminal mode  
Fractional T1 loopbacks as defined in Annex B of  
ANSI T1.403-1995  
Software configurable long-haul or short-haul DS-1  
port  
External alarm connector  
External alarm monitor  
61202156L2-1A  
TDU 120e User Manual  
1-3  
 
   
Chapter 1. Introduction  
TDU 120e OPTION MODULES  
Some of the option modules available for the TDU 120e  
are:  
DSX-1  
Provides a short haul T1 interface for operation with a  
PBX (Terminal Interface).  
Full Drop and Insert  
Permits the dropping of data and insertion of new data  
into the same DS0 time slot.  
This module includes a long haul DS-1 interface. It can  
also be used as a second DS-1 interface to provide an up  
to 3 MB aggregate throughput.  
Nx56/64 serial interface  
Provides a V.35 serial interface in either single or dual  
versions.  
Voice interface  
Provides 2 or 4 channels FXS/FX0/E&M.  
OCU DP  
Interfaces to DDS or 4-wire Switched 56, dual or single  
versions.  
DSU DP  
Provides two sync or async ports (EIA-232 or V.35).  
Dial backup  
Allows for backup of data upon network T1 failure.  
U-BR1TE  
Allows ISDN lines to be extended over a T1 line.  
1-4  
TDU 120e User Manual  
61202156L2-1A  
 
                 
Chapter 1. Introduction  
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 an-  
other application. See Figure 1-1.  
DSX-1  
Module  
TDU 120e  
OCU-DP  
Module  
Plug on  
V.35  
REMOT  
ACCESS  
E
CRA  
FT  
N
ETWOR  
K
MON  
PORT  
0
.2  
IN  
O
UT  
MON  
ACO  
IN  
OUT  
IN  
O
OK  
UT  
IN  
RE  
D
OUT  
TEST  
YEL  
OK  
ALARM  
NETW  
TDU  
120  
ERROR  
TES  
T
eAC  
ALARM  
ORK  
S
PORT  
TATUS  
1
.1  
0.1  
MON  
0.2  
1.1  
PORT  
1.2  
1.3  
IN  
O
UT  
1.4  
IN  
STATU  
OUT  
S
V.35  
Module  
Plug on  
OCU DP  
D&I  
Module  
DUAL  
Voice  
Plug on  
Dual Voice  
Figure 1-1. TDU 120e Option Modules  
61202156L2-1A  
TDU 120e User Manual  
1-5  
 
     
Chapter 1. Introduction  
TDU 120e CONFIGURATION APPLICATIONS  
The following examples illustrate possible configurations  
of TDU 120e applications.  
Router, PBX, Video Conferencing Application  
In this application, the Base Nx/DBU provides a V.35 in-  
terface 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  
TDU 120e  
REMOTE  
ACCES  
S
CRAFT  
NETWORK  
IN  
MON  
PORT 0.2  
IN OUT  
MON  
O
UT  
ACO  
I
N
O
U
T
OK  
I
N
O
U
T
RED  
YEL  
TEST  
OK  
ALARM  
NETW  
TD  
U
ERROR  
TEST  
1
20eAC  
ALARM  
ORK  
S
PORT 1.1  
MON  
TATUS  
0.1  
0.2  
1.1  
PORT  
1.2  
1.3  
I
N
O
U
T
1.4  
I
N
O
U
T
STATU  
S
ROUTER  
10 BaseT LAN  
VIDEO  
CONFERENCING  
SNMP NETWORK  
MANAGEMENT WORKSTATION  
Figure 1-2. Bridge, PBX, Video Conferencing Application Set-up  
1-6  
TDU 120e User Manual  
61202156L2-1A  
 
         
Chapter 2  
Installation  
UNPACK, INSPECT, POWER UP  
Receipt Inspection  
Carefully inspect the TDU 120e for any shipping damag-  
es. 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 informa-  
tion). If possible, keep the original shipping container for  
use in shipping the TDU 120e back for repair or for verifi-  
cation of damage during shipment.  
ADTRAN Shipments  
The following items are included in the ADTRAN ship-  
ment:  
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 modular cable for connection to  
the chain-in port  
The user manual  
61202156L2-1  
TDU 120e User Manual  
2-1  
 
   
Chapter 2. Installation  
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)  
POWER CONNECTION  
AC Powered Units  
Each TDU 120e AC unit 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 unit must be from a grounded 90-120 VAC,  
50/60Hz source.  
DC Powered Units  
Each TDU 120e DC unit is provided with a two-pin power  
receptacle and mating plug. Power to the TDU 120e DC  
unit is + 48 VDC or +24 VDC.  
2-2  
TDU 120e User Manual  
61202156L2-1  
 
               
Chapter 2. Installation  
GROUNDING INSTRUCTIONS  
Grounding instructions from the Underwriters' Laboratory  
UL 1950 3rd Edition are provided in this section.  
An equipment grounding conductor that is not smaller in  
size than the ungrounded branch-circuit supply conduc-  
tors 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 continuous outer  
finish that is either green, or green with one or more  
yellow stripes.  
The equipment grounding conductor is to be connect-  
ed 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.  
A supplementary equipment grounding conductor  
shall be installed between the product or system and  
ground that is in addition to the equipment ground-  
ing conductor in the power supply cord.  
The supplementary equipment grounding conductor  
shall not be smaller in size than the ungrounded  
branch-circuit supply conductors.  
The supplementary equipment grounding conductor  
shall be connected to the product at the terminal pro-  
vided and shall be connected to the ground in a man-  
ner that will retain the ground connection when the  
product is unplugged from the receptacle.  
61202156L2-1  
TDU 120e User Manual  
2-3  
 
   
Chapter 2. Installation  
The connection to ground of the supplementary  
equipment grounding conductor shall be in compli-  
ance with the rules for terminating bonding jumpers  
at Part K or Article 250 of the National Electrical  
Code, ANSI/NFPA 70.  
Termination of the supplementary equipment  
grounding conductor is permitted to be made to  
building steel, to a metal electrical raceway system, or  
to any grounded item that is permanently and reli-  
ably connected to the electrical service equipment  
ground.  
The supplemental grounding conductor shall be con-  
nected to the equipment using a number 8 ring termi-  
nal.  
The terminal should be fastened to the grounding lug  
provided on the rear panel of the equipment.  
The ring terminal should be installed using the ap-  
propriate 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 must be  
installed near the equipment and be easily accessible.  
2-4  
TDU 120e User Manual  
61202156L2-1  
 
Chapter 2. Installation  
IDENTIFICATION OF REAR PANEL LAYOUT  
Figure 2-1 shows the configuration of the rear panel of the  
TDU 120e (AC powered and DC powered units).  
TDU 120e AC  
TDU 120e DC  
Figure 2-1. TDU 120e Rear Panels  
61202156L2-1  
TDU 120e User Manual  
2-5  
 
     
Chapter 2. Installation  
TDU 120e Interfaces  
The TDU 120e rear panel is equipped with an Nx/DBU  
data port, a DS-1 interface, an option slot, management  
interfaces, anexternal alarm connector, anda T1 interface.  
See Figure 2-2.  
10BaseT  
PC or Modem  
Chain  
Output  
Chain  
Input  
Control  
Input  
Chain  
Output  
NI TDU 120e  
NI TDU 120e  
Network  
DS-1  
DS-1  
Nx56/64 Option  
Nx56/64 Option  
DS-1  
V.35  
PBX  
V.35  
Figure 2-2. TDU 120e Interfaces  
Network Interface  
The Network Interface (NI) port provides the connection  
to the T1. This port complies with the applicable ANSI  
and AT&T standards. For more information see  
Appendix B.  
Nx56/64 Serial Interface  
The Nx56/64 provides a serial V.35 port that operates  
from 56 kbps to 1.536 Mbps. This port provides 511 pat-  
tern generation and detection and remote loopback capa-  
bility.  
2-6  
TDU 120e User Manual  
 
61202156L2-1  
         
Chapter 2. Installation  
DS-1 (PBX) Interface  
Control In Port  
The DS-1 interface provides a T1 for a PBX or other equip-  
ment. This port complies with ANSI T1.102. It can be soft-  
ware configured for either long-haul or short-haul.  
The control port input provides an RJ-45 input from a PC  
or a modem for control of the TDU 120e. You can also use  
it as a chain input from another TDU 120e or TSU 100. For  
more information, see Appendix B.  
Craft Port  
The craft port provides the same functionality as the Con-  
trol Port Input. Both the craft port and the control port in-  
put may be connected simultaneously, but only one port  
may be active at a time. For more information, see  
Appendix B.  
Control Out Port  
10BaseT Interface  
The chain port output provides an RJ-45 output to chain  
control to other TDUs or to TSUs. For more information  
see Appendix B.  
The 10BaseT interface provides the LAN interface for  
managing the TDU 120e with SNMP or T-Watch PRO. For  
more information, see Appendix B.  
External Alarm Connector  
The external alarm connector provides the capability of  
connecting an external alarm device to the TDU 120e. The  
alarm relay will activate on any alarm. The relay will re-  
main activated until the automatic cut-off (ACO) button  
on the front panel is pushed. For more information, see  
Appendix B.  
61202156L2-1  
TDU 120e User Manual  
2-7  
 
           
Chapter 2. Installation  
POWER UPTESTING  
When shipped from the factory, the TDU 120e is set to fac-  
tory default conditions. At the first application of power,  
the unit automatically executes a memory self-test. A full  
self-test can be run from the terminal. A passcode and  
unit ID may be set using the UTILITY menu. See page 6-3.  
Self-Test  
When...  
Initiating a self-test  
Then...  
The terminal displays System Self-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 terminal  
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  
T-Watch PRO) consists of the following tests:  
Type of Test  
Explanation  
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  
Front panel LED verification  
Board-to-board interface test  
Unit level tests  
A test pattern is sent from the controller through a loopback  
on all other boards and checked on the controller. This  
verifies the data path, clocks, and control signals for the  
entire chassis.  
2-8  
TDU 120e User Manual  
 
61202156L2-1  
           
Chapter 2. Installation  
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 pass-  
code.  
If the unit is to be remotely accessed using T-Watch PRO, you must enter  
a passcode. When managing a number of units, the passcode can be the  
same for all the units.  
The passcode should be a number easily remembered.  
Once entered, the passcode is required to access any op-  
eration 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 ter-  
minal). If no Unit ID is recorded it is not possible to oper-  
ate from any remote control device, including the local PC  
for T-Watch PRO or SNMP. See Unit ID on page 6-3 for  
details.  
Set Control Port  
The TDU 120e can be configured from the control port  
when T-Watch PRO, SNMP, or the terminal interface are  
being used. If the control port is to be used, the control  
port baud rate must also be selected.  
61202156L2-1  
TDU 120e User Manual  
2-9  
 
           
Chapter 2. Installation  
Chain In (PC)  
The unit can be controlled from an external PC connected  
directly or via modem to the Chain-In port. When using  
Chain-In, the selection of the Control Port baud rate from  
9600 (factory default), 1200, 2400, or 4800, 19200, or 38400  
must be made using the UNIT CONFIGURATION menu. See  
Unit Menu on page 5-14 for details.  
Chain In/Chain Out  
TDU 120e units and other TDUs and TSUs can be linked  
together to form a chain. Figure 2-3 provides 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  
Chain  
In  
Chain  
Out  
Control  
Input  
Chain  
Out  
Chain  
In  
Chain  
Out  
TDU 120e/  
TSU 100/TSU  
TDU 120e  
TDU 120e/  
TSU 100/TSU  
Figure 2-3. Example of Chain-in  
Subsequent TDU/TSUs in the chain are in a position to in-  
take information from another TDU or TSU. This in-tak-  
ing of information from another TDU in the chain is  
identified as Chain In. The baud rate for the chained units  
must match that of the first unit.  
Unless locked out externally, the front panel can also con-  
trol the unit.  
2-10  
TDU 120e User Manual  
 
61202156L2-1  
     
Chapter 2. Installation  
At this point, the unit initialization procedure is conclud-  
ed. 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 Control Port settings  
are stored in a nonvolatile memory. This ensures they are  
operable for subsequent power-up sequences.  
NORMAL POWER-UP PROCEDURE  
After the unit has been put into operation with the initial  
power-up and initialization, subsequent power-up proce-  
dure includes only the Power-Up self-test followed by the  
request for a passcode (password) if this option was se-  
lected during initialization.  
Type the previously recorded passcode and press Enter.  
61202156L2-1  
TDU 120e User Manual  
2-11  
 
   
Chapter 2. Installation  
2-12  
TDU 120e User Manual  
 
61202156L2-1  
Chapter 3  
Operation  
MENU OPERATION  
The TDU 120e uses a VT-100 type terminal to display con-  
trol and monitor menus. Initiate this mode by keying in  
<CTRL> PTT on the terminal once it is connected 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 MANAGEMENT sub-  
menu.  
For detailed information on this method of control, see  
the Telnet/Terminal Main Menu on page 3-5.  
You can also connect to the TDU 120e via Telnet. Before  
attempting to connect via Telnet, first define the IP ad-  
dress, the default gateway, and the subnet mask.  
See DEFAULT UNIT PASSCODE in the Unit Access Table on  
page 8-2 for details. The Telnet session will time-out after  
a predefined value that is also set in the MANAGEMENT  
menu.  
Only one Telnet session can be active at one time.  
61202156L2  
TDU 120e User Manual  
3-1  
 
     
Chapter 3. Operation  
Sample Terminal Screen with TDU 120e Menu  
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 Traversal  
The TDU 120e uses a multilevel menu structure contain-  
ing both menu items and data fields. All menu operations  
and data are displayed on the terminal.  
Select and Activate a Menu Item  
To 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.  
3-2  
TDU 120e User Manual  
 
61202156L2  
             
Chapter 3. Operation  
The following steps and Figure 3-2 describe how to acti-  
vate the alarm list option from the Status Menu.  
Step  
Action  
Result  
Activate the STATUS menu using The cursor will flash on the  
the arrow keys or by pressing 1. number next to the  
activated selection.  
1
The STATUS submenus will  
display.  
Press Enter.  
2
3
4
Use the arrow keys to view  
submenu items.  
Choose an item on the submenu The cursor will flash on the  
such as ACTIVE ALARMS.  
number next to the  
activated selection.  
The ACTIVE ALARM LIST will  
display.  
Press Enter.  
5
6
View the ALARM LIST.  
.
1) NETWORK (NI) PERFORMANCE REPORTS  
2) NETWORK (NI) ERRORS  
3) ACTIVE ALARMS  
4) VIEW HISTORY  
(ALARM LIST)  
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  
61202156L2  
TDU 120e User Manual  
 
3-3  
 
Chapter 3. Operation  
Edit the Data Field  
You can edit data fields preceded by a colon (:). To edit a  
data field perform the following steps:  
Step  
Action  
Result  
Position the cursor on the submenu The cursor moves to the data  
1
2
3
4
item number and press Enter.  
field (to the right of the  
submenu item name).  
Using the space bar, scroll to scan The value settings display  
the available value settings.  
one-at-a-time in the data field  
position.  
When the desired value is  
When the value is set, the  
displayed in the data field position, cursor moves back to the  
press Enter to set that value.  
submenu item position.  
Select another submenu field or  
press Escape to return to the  
submenu.  
This indicates the operation is  
complete.  
Exit Any Menu Field Operation or Display  
Press Escape as many times as required to return to the  
desired menu level.  
Data Port Identification  
When configuring the unit, menu selections will include  
options from data port submenus. Selecting data ports 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 is located in the option slot and is the first port  
in that slot.  
Nx56/64 (1.2)  
Where slot=1 and port=2.  
3-4  
TDU 120e User Manual  
61202156L2  
 
         
Chapter 3. Operation  
The Nx is located in the option slot and is the second port  
in that slot.  
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.  
MENU STRUCTURE  
Telnet/Terminal Main Menu  
The TDU 120e uses a multilevel menu structure contain-  
ing both menu items and data fields. All menu operations  
and data display in the terminal window.  
The first menu displayed after the Telnet/terminal ses-  
sion is established is the MAIN menu. See Figure 3-3. The  
default Telnet/terminal password is ADTRAN.  
ADTRAN - TDU 120e  
Password: XXXXXX  
Main Menu  
1) Status  
2) Config  
3) Util  
4) Test  
5) Remote Menu Access  
6) Management Config  
7) Flash Download  
8) Quit Session  
Figure 3-3. Telnet/Terminal Main Menu  
61202156L2  
TDU 120e User Manual  
3-5  
 
       
Chapter 3. Operation  
Only one Telnet/terminal session may be active at a time.  
Menu Options  
The opening menu is the access point to all other opera-  
tions. 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.  
Config (Configuration)  
Displays and sets the TDU 120e operational configura-  
tion, including all network interface parameters, the allo-  
cation of the DS0s, and the port parameters. For detailed  
information on configuration options, see Chapter 5, Con-  
figuration Menu.  
Util (Utilities)  
Displays and sets system parameters. For detailed infor-  
mation on utility options, see Chapter 6, Utility Menu.  
Test  
Initiates different types of unit tests and displays test  
results in the terminal window. For detailed information  
on test options, see Chapter 7, Test Menu.  
Remote Access Menu  
Displays Telnet menus for a remote device. For detailed  
information, see Chapter 8, Remote/Management Menus.  
3-6  
TDU 120e User Manual  
 
61202156L2  
           
Chapter 3. Operation  
Management Configuration  
Displays management information. For detailed infor-  
mation, see Chapter 8, Remote/Management Menus.  
Flash Download  
Allows you to manually perform a Flash download. For  
detailed information, see Chapter 8, Remote/Management  
Menus.  
Quit Session  
Terminates the Telnet/terminal session.  
FRONT PANEL  
The TDU 120e front panel monitors operation and con-  
trols the configuration of the unit. The TDU 120e front  
panel is shown in Figure 3-4.  
TDU 120e AC  
PORT 1.1  
OK  
RED  
YEL  
OK  
TEST  
NETWORK  
IN OUT  
MON  
IN OUT  
MON  
PORT 0.2  
IN OUT  
MON  
REMOTE  
ACCESS  
CRAFT  
TEST  
IN OUT  
IN OUT  
IN OUT  
ALARM  
ALARM  
ERROR  
0.1  
0.2  
1.1  
1.2  
1.3  
1.4  
ACO  
NETWORK STATUS  
PORT STATUS  
Alarm  
Cut Off  
Connection  
For  
Terminal  
Port 1.1  
Control Port  
Active Unit  
Network  
Monitor Jack  
Option Card  
DS-1  
Monitor Jack  
Network  
Status LED's  
Port Status  
LED's  
Monitor Jacks  
Figure 3-4. TDU 120e Front Panel Layout  
The following pages contain descriptions of each part of  
the front panel.  
61202156L2  
TDU 120e User Manual  
 
3-7  
         
Chapter 3. Operation  
ACO Switch  
The Alarm Cut-Off (ACO) 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 re-energize.  
Remote LED  
Craft Port  
The remote LED (yellow) indicates a management session  
(terminal mode or Telnet) is active. The LED does not ac-  
tivate (turn on) during SNMP sessions.  
The Craft Port is used as an RJ-45 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.  
DS1 Monitor Jack  
This jack connects the unit to a PBX or other terminal  
equipment.  
3-8  
TDU 120e User Manual  
 
61202156L2  
         
Chapter 3. Operation  
LEDs  
Network Status LEDs  
The network status LEDs display the operational condi-  
tion of the network interface located on the controller  
board in the unit.  
LED  
Display  
Color  
Indicates that...  
OK  
Green The operation is in the normal mode and no  
errors have been detected.  
Test  
Yellow The network interface is operating in a test  
mode. This includes a self-test or a test  
loopback. When lighted, this LED also  
indicates that normal data flow is not  
occurring on the network interface.  
Error  
Red  
An error has occurred, such as a BPV, OOF,  
or CRC.  
Alarm  
Red  
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 the UNIT HISTORY  
menu.  
61202156L2  
TDU 120e User Manual  
3-9  
 
     
Chapter 3. Operation  
Port Status LEDs  
LED  
Display  
Color  
Indicates that...  
OK  
Green  
The operation is in the normal mode and no  
errors have been detected.  
Test  
Yellow  
One of the interfaces is operating in a test  
mode. This includes a self-test or a test  
loopback.  
When lighted, also indicates that normal data  
flow is not occurring in at least one of the  
module ports.  
Alarm  
Red  
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 the UNIT HISTORY  
menu.  
Port 1.1 Option Card Monitor Jacks  
These are used to connect option cards to the computer.  
3-10  
TDU 120e User Manual  
61202156L2  
 
     
Chapter 3. Operation  
ALTERNATE METHODS OF CONTROL  
T-Watch PRO (ADTRAN PC Program)  
T-Watch PRO is the ADTRAN PC control program. It  
provides complete control over the configuration of the  
TDU 120e using a graphical interface. The T-Watch PRO  
program displays the same status and performance data  
as the terminal screen. This data is displayed in tables and  
graphs.  
The T-Watch PRO program has the following 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 units via the local area network (LAN).  
Setting up the TDU 120e to Work over a LAN  
To set up the TDU 120e to work with T-Watch PRO over  
the LAN, follow these steps:  
Step  
Action  
Set the Unit ID using the Front Panel. See Unit ID  
on page 6-3 for details.  
1
2
3
4
Set control port interface to Normal (10BaseT) or  
SLIP (chain-in port).  
Configure the IP address, default gateway, and  
subnet mask.  
Follow the installation instructions for T-Watch  
PRO to start the program and connect to the unit.  
61202156L2  
TDU 120e User Manual  
 
3-11  
     
Chapter 3. Operation  
Setting up the TDU 120e to Work over an EIA-232 Connection  
To set up the TDU 120e to work with T-Watch PRO over  
a direct EIA-232 connection, follow these steps:  
Step  
Action  
Set the Unit ID and set a passcode. See page  
6-3.  
1
Set the control port rate to the same setting as  
the PC Com port.  
2
3
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 installation instructions for T-Watch  
PRO to start the program and connect to the  
unit.  
4
SNMP  
The ADTRAN TDU 120e supports the Simple Network  
Management Protocol (SNMP) through the 10BaseT or  
chain in (SLIP) interface. See Appendix A, Understanding  
SNMP, for more information.  
To use SNMP with the TDU 120e, follow these steps:  
Step  
Action  
Set the control port to either Normal (10BaseT)  
or SLIP (Chain-in port).  
1
Set the IP address, default gateway, and subnet  
mask through the front panel.  
2
3
Load the appropriate MIB browser into the  
Network Management Station. The MIB browser  
issues SNMP and sets the TDU 120e.  
See the ADTRAN webpage at:  
http://www.adtran.com.  
3-12  
TDU 120e User Manual  
 
61202156L2  
   
Chapter 4  
Status Menu  
STATUS  
The STATUS menu branch allows you to view the status of  
the TDU 120e operation. See Figure 4-1.  
%AS  
1) NETWORK (NI)  
PERFORMANCE REPORTS  
%EF  
ES  
SES  
UAS  
2) NETWORK (NI) ERRORS  
3) ACTIVE ALARMS  
4)VIEW HISTORY  
NETWORK (NI)  
RED ALARM  
1)STATUS  
LOSS OF SIGNAL  
END OF LIST  
(HISTORY LIST)  
END OF HISTORY  
1) DTE DATA CLOCK  
2) DTE STATUS  
5) PORT STATUS  
6) REMOTE PORT  
Nx/DBU (0.1)  
3) DTE PORT RATE  
4) DBU DATA/CNTRL  
5) DBU CONTROL  
6) DBU STATUS  
DS-1 (0.2)  
DS-1 ERRORS  
7) CLEAR PORT ALARM  
8) ETHERNET STATUS  
(OPTION LIST)  
Figure 4-1. Status Menu Tree  
Menu flow is depicted from left to right. At every level of  
the menu, pressing ESCAPE returns the system to the pre-  
vious menu level. Press ESCAPE repeatedly to return the  
system to the main menu.  
61202156L2-1  
TDU 120e User Manual  
4-1  
 
       
Chapter 4. Status Menu  
Network (NI) Performance Reports  
The NETWORK INTERFACE PERFORMANCE REPORTS (see  
Figure 4-2) display the performance data. The TDU 120e  
maintains this performance data on the network in com-  
pliance 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.  
Where  
Means  
%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)  
Figure 4-2. Network Interface Performance Report  
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  
61202156L2-1  
 
     
Chapter 4. Status Menu  
Network Interface (NI) Errors  
The NI Errors submenu displays the types of errors the  
Network 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 listed below:  
CRC  
CRC-6 bit errors based on the FDL. This is valid only in  
ESF mode.  
BPV  
Bipolar violations  
XSO  
Excess zeros  
FER  
Framing errors  
Active Alarms  
This menu item displays a list of current alarms reported  
by either the base controller or any of the ports. If no  
alarms are current, using this menu item displays END OF  
LIST.  
This display (see Table 4-1 on page 4-4) 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 Messages.  
If one or more of the Alarm LEDs are illuminated, an  
alarm is present. Press Escape to return to the previous  
menu item  
61202156L2-1  
TDU 120e User Manual  
4-3  
 
                       
Chapter 4. Status Menu  
Table 4-1. Alarm Message Display  
Active Alarms  
Network (Ni)  
Red Alarm  
Loss Of Signal  
End Of List  
View History  
This menu item both displays and clears the accumulated  
status changes of the unit.  
VIEW HISTORY displays a history of the last 20 status  
changes in the unit, including the date, time, and type of  
change. The unit also records for viewing the date and  
time an alarm became active and inactive, as well as the  
date and time of test activation and deactivation.  
To clear the VIEW HISTORY display, press C.  
Port Status  
PORT STATUS displays the signals monitored on the data  
ports. For example, the Nx/DBU interface monitors the  
RTS, CTS, RD, and RD, along with other signal lines.  
When a port is selected, the terminal indicates if the signal  
is present.  
The base Nx interface shows the status screen listed in this  
section. When using other option cards, refer to the ap-  
propriate separate manual for a definition of any status  
screens offered.  
The PORT STATUS of Nx/DBU shows how to use this  
item.  
4-4  
TDU 120e User Manual  
 
61202156L2-1  
         
Chapter 4. Status Menu  
Nx/DBU (0.1) Menu Items  
DTE Data/Clock  
An asterisk (*) indicates an active status of the following  
lines:  
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  
DTE Status  
An asterisk (*) indicates an active status of the following  
lines:  
RTS  
Request to send from DTE  
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.  
61202156L2-1  
TDU 120e User Manual  
4-5  
 
               
Chapter 4. Status Menu  
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  
Request to send the DCE  
CTS  
Clear to send from the DCE  
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 indication of active DBU status  
4-6  
TDU 120e User Manual  
 
61202156L2-1  
           
Chapter 4. Status Menu  
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 dis-  
plays N/A.  
BPV  
An asterisk displays under the BPV if the DS-1 detects  
bipolar violations.  
SLIP  
An asterisk displays under the SLIP if the DS-1 detects  
frame slips. This is caused by multiple clock sources in  
the application.  
FER  
An asterisk displays under the FER if the DS-1 detects  
frame bit synchronization errors.  
Remote Port  
REMOTE PORT displays the status of activity on the Con-  
trol In 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 CRC received  
PC  
Correct passcode received  
TX  
Characters transmitted from the remote port  
61202156L2-1  
TDU 120e User Manual  
4-7  
 
                         
Chapter 4. Status Menu  
Clear Port Alarm  
Clears the LINK FAILED alarms on option modules that  
have been removed from the TDU 120e chassis.  
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.  
4-8  
TDU 120e User Manual  
 
61202156L2-1  
               
Chapter 5  
Configuration Menu  
CONFIG  
The CONFIGURATION menu sets the TDU 120e operational  
configuration, including all network interface parame-  
ters, the allocation of the DS0s, and the port parameters.  
See the TDU 120e Config Menu Tree on page 5-2.  
Menu flow is depicted from left to right. At every level of  
the menu, pressing Escape returns the system to the pre-  
vious menu level. Pressing Escape repeatedly returns the  
system to the MAIN menu.  
61202156L2-1A  
TDU 120e User Manual  
5-1  
 
   
Chapter 5. Configuration Menu  
1) NETWORK (NI)  
2) UNIT  
See Figure 5-2 on page 5-3.  
See Figure 5-3 on page 5-4.  
3) MAP EXCHANGE AUTO/ OFF MAP A@00:00*  
MAP B@00:00*  
4) MAP IN USE  
A/B  
TEMP MAP  
PORT  
DSO #  
DSO#  
13  
PORT  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
1
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
2
14  
3
15  
4
16  
CONFIG  
5) DS0 MAPS  
5
17  
6
18  
7
19  
8
20  
9
21  
10  
11  
12  
22  
23  
24  
1) COPY MAP A TO TEMP MAP  
2) COPY MAP B TO TEMP MAP  
3) CREATE TEMP MAP  
4) CREATE AUTO MAP  
5) REVIEW MAP A  
6) REVIEW MAP B  
7) REVIEW TEMP MAP  
8) EDIT TEMP MAP  
9) APPLY TEMP MAP TO MAP A  
10) APPLY TEMP MAP TO MAP B  
CONFIG -- Select Port  
1) PORT 1  
6) PORT CONFIG  
2) PORT 2  
3) PORT 3  
N) EXIT  
COMMAND:  
7) EXIT  
*Only available if map exchange set to Auto.  
Figure 5-1. TDU 120e Config Menu Tree  
5-2  
TDU 120e User Manual  
 
61202156L2-1  
 
Chapter 5. Configuration Menu  
1) FORMAT  
ESF/D4/SLC96  
B8ZS/AMI  
2) CODE  
3) YELLOW ALARM  
4) TRANSMIT PRMS  
ENA/DISA  
ON/OFF  
NORMAL (CSU)  
5) TIMING MODE  
INTERNAL/NETWORK (NI)  
BASE DTE/U-BR1TE (SLOT 1)  
BASE DS-1/SECONDARY (SI)  
1) NETWORK  
6) SET LINE BUILD OUT  
0.0/ 7.5/ 15.0/ 22.5/ AUTO  
ACCEPT ALL  
REJECT ATT  
7) REMOTE LOOPBACK DET  
REJECT FT1  
REJECT ATT & FT1  
REJECT ALL  
8) BIT STUFFING  
9) TR-08 OPTIONS  
ENABLE/ DISABLE  
1) ALARM REPORT [SEND ALARMS/DISABLE ALARM  
2) ALARM FORMAT [ORB-13/ORB-16  
3) BPV THRESHOLD [10-4/10-6/10-5]  
4) EXIT  
10) EXIT  
Figure 5-2. Network (NI) Menu Tree  
61202156L2-1  
TDU 120e User Manual  
5-3  
 
 
Chapter 5. Configuration Menu  
1) CONTROL PORT RATE 38400 / 19200 / 9600 / 2400 / 1200  
2) TRAPS  
ENABLE/DISABLE  
DIRECT/DIAL  
3) ACCESS  
NONE  
4) INIT. MODEM  
CUSTOM  
HAYES  
MOTOROLA  
USR COURIER  
2) UNIT  
5) CONTROL PORT:  
6) IP ADDRESS  
NORMAL  
000.000.000.000  
7) SUBNET ADDRESS:  
8) DEFAULT ROUTER:  
9) SLIP RATE:  
000.000.000.000  
000.000.000.000  
38400 / 19200 / 9600 / 2400 / 1200  
10)SLIP FLOW CONTROL NONE/HARDWARE  
11) PROXY TRAPS  
12) EXTERNAL ALARMS  
13) EXIT  
ENABLE/DISABLE  
ENA/DISA  
Figure 5-3. Unit Menu Tree  
5-4  
TDU 120e User Manual  
61202156L2-1  
 
 
Chapter 5. Configuration Menu  
NETWORK (NI)  
This menu item accesses the configuration of parameters  
associated with the network interface in the base unit.  
There are nine submenu items that include setting the for-  
mat, the line build out (LBO), and the timing mode. Sub-  
menu items do not include setting the parameters which  
may be necessary for a secondary interface  
(DS-1 Passthru, etc.).  
Network (NI) Menu Items  
FORMAT  
Sets the frame format for the NI.  
Choices: D4, ESF, SLC96.  
D4 is equivalent to superframe format (SF).  
CODE  
Sets the line code for the NI.  
Choices: AMI and B8ZS.  
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.  
61202156L2-1  
TDU 120e User Manual  
5-5  
 
           
Chapter 5. Configuration Menu  
TIMING MODE  
Selects the clock source for transmission toward the net-  
work from the NI.  
Choices: NETWORK, BASE DTE, BASE DS-1, NORMAL  
(CSU) (only with DSX-1 option card), U-BR1TE (only  
with U-BR1TE option card), INTERNAL, and SECONDARY  
(SI) (only with secondary port option card).  
The selected clock option always designates the clock source for  
transmission. Clocking necessary for receiving data is always recovered  
from incoming data.  
5-6  
TDU 120e User Manual  
61202156L2-1  
 
 
Chapter 5. Configuration Menu  
Network Timed  
The network is the source of timing. The received  
data clocking is looped back to the network, where it  
is used to determine the transmission timing. This  
option is also referred to as loop timed as the trans-  
mission clock is derived from the received clock. See  
Figure 5-4.  
INTERNAL  
OSCILLATOR  
T1 Transmit  
SECONDARY  
INTERFACE  
NETWORK  
INTERFACE  
OPTION CARD  
T1 Receive  
BASE Nx56/64  
DTE CLOCK  
BASE DS-1  
PBX  
Figure 5-4. Network Timed Clock Source  
61202156L2-1  
TDU 120e User Manual  
5-7  
 
 
Chapter 5. Configuration Menu  
Base 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 5-5.  
INTERNAL  
OSCILLATOR  
T1 Transmit  
SECONDARY  
INTERFACE  
NETWORK  
INTERFACE  
OPTION CARD  
T1 Receive  
BASE Nx56/64  
DTE CLOCK  
BASE DS-1  
PBX  
Figure 5-5. Base DS-1 Timed Clock Source  
5-8  
TDU 120e User Manual  
 
61202156L2-1  
 
Chapter 5. Configuration Menu  
Base DTE Timing  
The Base DTE is the source of timing. The TDU 120e  
uses the incoming DTE clock to determine the trans-  
mission timing. This is typically used in applications  
where it is necessary to have the DTE as the primary  
clock source (such as limited distance line drivers).  
See Figure 5-6.  
INTERNAL  
OSCILLATOR  
T1 Transmit  
SECONDARY  
INTERFACE  
NETWORK  
INTERFACE  
OPTION CARD  
T1 Receive  
BASE Nx56/64  
DTE CLOCK  
BASE DS-1  
PBX  
Figure 5-6. Base DTE Timed Clock Source  
61202156L2-1  
TDU 120e User Manual  
5-9  
 
 
Chapter 5. Configuration Menu  
Internal Timing  
The TDU 120e is the source of timing. The TDU 120e  
is configured to use its own internal oscillator as the  
source of timing. Applications include private line  
driver circuits where one end is set to network and  
the other to internal. See Figure 5-7.  
INTERNAL  
OSCILLATOR  
T1 Transmit  
SECONDARY  
INTERFACE  
NETWORK  
INTERFACE  
OPTION CARD  
T1 Receive  
BASE Nx56/64  
DTE CLOCK  
BASE DS-1  
PBX  
Figure 5-7. Internal Clock Source  
5-10  
TDU 120e User Manual  
 
61202156L2-1  
 
Chapter 5. Configuration Menu  
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 5-8.  
INTERNAL  
OSCILLATOR  
SECONDARY  
INTERFACE  
T1 Transmit NETWORK  
INTERFACE  
OPTION CARD  
T1 Receive  
BASE Nx56/64  
DTE CLOCK  
BASE DS-1  
PBX  
Figure 5-8. Secondary Clock Source  
61202156L2-1  
TDU 120e User Manual  
5-11  
 
 
Chapter 5. Configuration Menu  
Normal (CSU) Timing  
The typical timing option arrangement is shown in  
Figure 5-9. 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. It works  
equally well when the PBX is the source of timing. In  
that configuration the network would not be provid-  
ing timing.  
INTERNAL  
OSCILLATOR  
T1 Transmit  
NETWORK  
SECONDARY  
INTERFACE  
INTERFACE  
OPTION CARD  
T1 Receive  
BASE Nx56/64  
BASE DS-1  
DTE CLOCK  
PBX 2  
Figure 5-9. Normal (CSU)  
The network interface and secondary interface clocking options are set by  
using the Network (NI) Configuration menu options.  
5-12  
TDU 120e User Manual  
61202156L2-1  
 
 
Chapter 5. Configuration Menu  
U-BR1TE  
The timing selection U-BR1TE works like NORMAL  
(CSU) except that timing is derived from the U inter-  
face on port 1.1.  
Set Line Buildout  
Selects the line buildout for the network interface. In  
AUTO 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.  
To activate the -36 dB receiver sensitivity, set the LBO to AUTO. This  
action 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.  
Remote Loopback Det  
Sets unit to accept or reject the network interface loop-up  
and loop-down codes as defined in ANSI T1.403.  
Choices: ACCEPT ALL, REJECT ATT, REJECT FT1, REJECT  
ATT & FT1, REJECT ALL.  
Bit Stuffing  
When enabled, bit stuffing causes the TDU 120e to moni-  
tor for ones (1s) density violations and insert a one (1)  
when needed to maintain 1s at 12.5%.  
Choices: ENABLE or DISABLE.  
TR-08 Options  
The TR-08 submenu configures the unit for TR-08 appli-  
cations. The submenu items and their descriptions fol-  
low:  
Alarm Report  
Enables and disables the transmission of alarm reports.  
Choices: SEND ALARMS, DISABLE ALARMS  
61202156L2-1  
TDU 120e User Manual  
5-13  
 
       
Chapter 5. Configuration Menu  
Alarm Format  
Sets the alarm format to 13 frames or 16 frames.  
Choices: ORB-13, ORB-16  
BPV Threshold  
Sets the threshold for BPVs to trigger an alarm.  
Choices: 10-4, 10-5, 10-6  
Exit  
This selection will exit to the main configuration menu.  
Unit Menu  
The Unit menu changes the baud rate of the Control In  
port and the setup of the Dial Out port. The menu items  
are:  
Control Port Rate  
Sets the baud rate for communication with the PC or  
modem.  
Choices: 1200, 2400, 9600, 19200, and 38400 KBPS  
Traps  
Enables or disables the transmission of trap messages.  
Choices: ENABLE and DISABLE  
Access  
Sets the method of connection from the TDU 120e to  
T-Watch PRO or SNMP.  
Choices:  
Direct: Used if connected directly to the PC.  
Dial: Used when connection is through a modem. The  
dial string is entered from T-Watch PRO or SNMP.  
Init Modem  
Allows you to choose an industry standard or a custom  
initialization string for a modem connected to the control  
port.  
Choices: NONE, CUSTOM, HAYES, MOTOROLA, and USR  
COURIER  
5-14  
TDU 120e User Manual  
 
61202156L2-1  
           
Chapter 5. Configuration Menu  
Control Port  
Selects the TCP/IP physical interface: Normal (10BaseT  
Ethernet) or SLIP using the RS-232 serial port.  
Choices: NORMAL or SLIP  
If the Control Port option is set to SLIP, the RS-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, sepa-  
rated by periods. This value is used for either the  
10BaseT Ethernet or SLIP interface, depending on the  
control port setting.  
Subnet Address  
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 the control port 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 con-  
nected to the TDU 120e unit’s local network. This value  
is ignored when the control port option is set to SLIP.  
SLIP Rate  
This sets the baud rate for the Chain-In port when used  
as the SLIP connection for SNMP management.  
Choices: 1200, 2400, 9600, 19200, 38400  
61202156L2-1  
TDU 120e User Manual  
5-15  
 
         
Chapter 5. Configuration Menu  
SLIP Flow Control  
This is used to activate flow control on the Chain-In port  
when used as the SLIP interface. Hardware mode uses  
RTS and CTS.  
Choices: NONE, HARDWARE  
Proxy Traps  
This determines whether or not traps are forwarded to  
the IP Interface from units being “proxied” for.  
Choices: ENABLE, DISABLE  
External Alarm  
Sets unit to accept or reject external alarms attached to  
Pin 6 or Pin 7 of the Chain-In Port. A connection to  
ground indicates an alarm condition.  
Choices: ENABLE, DISABLE  
Exit  
This selection will exit to the main configuration menu.  
Map Exchange  
The MAP EXCHANGE menu enables and sets the automatic  
time of day map switch. The unit provides selection of  
the hour, minute, and seconds for the map switching to  
take place. The menu items are:  
OFF  
Indicates the map in use does not change. 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.  
When AUTO is selected, the unit displays the screens to  
set times for switching.  
5-16  
TDU 120e User Manual  
 
61202156L2-1  
           
Chapter 5. Configuration Menu  
After editing Map A, press Enter to record the Map A set-  
tings 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 coordinate the automatic map  
switch by sending a map switch command from end-to-  
end over the FDL. Only one end needs to be set to AUTO  
for this to work.  
Map In Use  
This menu item controls the DS0 map the TDU 120e uses  
and displays the map in current use.  
DS0 Map A and DS0 Map B  
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.  
61202156L2-1  
TDU 120e User Manual  
5-17  
 
         
Chapter 5. Configuration Menu  
DS0 Maps Configuration Menu  
The DS0 maps configuration menu takes advantage of  
the 24-line VT-100 display. Upon entering this menu, the  
current Temp (temporary) map displays and is followed  
by nine selections that you can use for configuring and  
reviewing map information. See Figure 5-10.  
TEMP MAP  
DS0#  
1
PORT  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
IDLE  
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  
2
3
4
5
6
7
8
9
10  
11  
12  
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  
Figure 5-10. DS0 Temp Map  
You can use the up and down arrows or number keys to  
move the cursor from one selection to another. Press  
Enter to perform the action displayed to the right of the  
cursor.  
5-18  
TDU 120e User Manual  
 
61202156L2-1  
   
Chapter 5. Configuration Menu  
Creating a DSO Map  
To configure a DS0 Map, perform the following steps:  
Step  
Explanation  
Initialize the TEMP Map to one of three configurations  
(current Map A, current Map B, or all IDLE). This step  
is optional.  
1
Edit the Temp Map so that it reflects the desired map  
configuration.  
2
3
Replace the current DS0 Map A or B configuration  
with the Temp map configuration.  
Initializing the Temp Map  
Upon entering the DS0 maps CONFIGURATION menu, the  
Temp map reflects its last configured state.  
If you want to...  
Enter selections...  
1 - 2  
Initialize the Temp map from its  
current configuration to one which  
reflects the currently stored Map A  
or B configurations, respectively.  
Initialize the Temp map to an all  
IDLE state.  
3
61202156L2-1  
TDU 120e User Manual  
5-19  
 
   
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 Upon entering this mode, the cursor  
1
Temp map edit mode.  
location moves to DS0 number one in  
the DS0 field of the Temp map.  
Move the cursor from one  
DS0 to another by using the assigned port needs to be changed.  
up and down arrows  
Locate the DS0 number whose  
2
Press Enter.  
The cursor will move into the PORT  
field.  
3
4
Use the up and down  
arrows to scroll through the assignment and return to the DS0 field,  
To restore the previous port  
possible port selections.  
press ESC.  
To save the current selected  
port and return to the DS0  
field, press Enter.  
5
6
When the cursor is again  
located in the Temp map  
DS0 field, press Esc.  
This causes the cursor to return to  
selection 1 below the Temp map  
display.  
Applying the Temp Map  
Once the Temp map reflects the desired configuration,  
use selections 8 or 9 to apply this configuration to Map A  
or B, respectively.  
Copying Map  
To copy Map A to Map B, copy Map A to the Temp map  
and then apply the Temp map to Map B. See Figure 5-11.  
5-20  
TDU 120e User Manual  
61202156L2-1  
 
     
Chapter 5. Configuration Menu  
T E M P  
D S 0 A  
D S 0 B  
Figure 5-11. DS0 Map Designations  
Reviewing Maps  
Selections 4 through 6 give a summary of the number of  
ports assigned to Map A, Map B, and the Temp map,  
respectively. The menu items and their descriptions fol-  
low:  
Copy Map A (B) to Temp Map  
Copies the current map A (B) into a TEMP map area.  
This permits modification without disturbing the  
existing map. When the modifications are com-  
pleted, the TEMP map is written to current MAP A  
(B) by selecting APPLY TEMP MAP TO MAP A (B).  
Create Temp Map  
Creates a map by defining a port or Idle for all DS0s.  
When CREATE TEMP MAP is first selected, all DS0s  
are set to Idle.  
Possible port selections include IDLE, TST, + option  
module ports.  
TST designates which DS0s are used for QRSS test-  
ing when activated under the TEST menu.  
When not used for testing, the TST designation is  
identical to IDLE.  
61202156L2-1  
TDU 120e User Manual  
5-21  
 
   
Chapter 5. Configuration Menu  
Selecting APPLY TEMP MAP TO MAP A (B) will not disrupt the  
operation of unmodified ports.  
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 REVIEW MAP A  
(B).  
Edit Temp Map  
The map in the TEMP file can be edited to whatever con-  
figuration is desired. If Map A had been copied into the  
TEMP file, then after editing, the TEMP file could be  
applied to MAP A or MAP B.  
Apply Temp to Map A (B)  
Writes the TEMP map into Map A (B). Apply is usually  
the last step in updating a map.  
Port Configuration (Port Config)  
PORT CONFIGURATION selects and configures the parame-  
ters associated with any data port in the unit. For exam-  
ple, 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 de-  
veloped in the future will contain the appropriate menu  
selections to provide access by using this menu item.  
5-22  
TDU 120e User Manual  
61202156L2-1  
 
         
Chapter 5. Configuration Menu  
The CONFIG menus for options ports are described in sep-  
arate sections of the manual supplied with the option  
card.  
Nx/DBU (0.1) Menu Items  
The Nx/DBU port has two main menus:  
NX56/64 CONFIG -- Nx operation and DBU CONFIG -- DBU  
operation.  
Nx56/64 Config  
Under NX56/64 CONFIG, the menu items are:  
DS0 RATE  
This sets the base DS0 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 interface cable is long, causing a  
phase shift in the data, the clock can be selected as  
INVERT. This switches the phase of the clock which  
should compensate for a long cable.  
Choices: NORMAL, INVERT  
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 INVERT  
If INVERT is selected, zero (0) inhibit should also be selected to prevent an  
open DTE input from placing zeros on the network.  
61202156L2-1  
TDU 120e User Manual  
5-23  
 
   
Chapter 5. Configuration Menu  
CTS  
Used to control characteristics of CTS.  
Choices: NORMAL, (see Table 5-1 on page 5-25) or  
FORCE ON  
DCD  
Data Carrier Detect. Indicates to the DTE when a  
valid signal is being received at the Network Inter-  
face.  
Choices: NORMAL (see Table 5-1 on page 5-25) or  
FORCE ON  
DSR  
Data Set Ready. This signal indicates to the DTE  
when the DCE is turned on and ready for operations.  
Choices: NORMAL (see Table 5-1 on page 5-25) or  
FORCE ON  
“0” INHIB  
The Nx interface will detect an uninterrupted string  
of zeros (0s) being transmitted toward the network.  
If 0s are transmitted for more than 1 second, the TDU  
120e will force 1s.  
Choices: ON or OFF  
INBAND MODE  
The Nx56/64 port is capable of providing an inband  
communications channel (for T-Watch PRO and  
SNMP) between units. This is accomplished by using  
8 kbps of the first DS0 assigned to that particular  
Nx56/64 port. If in 56K mode, no data bandwidth  
will be used. Inband must also be enabled at the des-  
tination 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. The  
default option is INTERNAL.  
If the application requires that the DTE device pro-  
vide the clock with the transmit data, the External  
setting is used.  
Choices: INTERNAL, EXTERNAL  
5-24  
TDU 120e User Manual  
 
61202156L2-1  
Chapter 5. Configuration Menu  
Table 5-1. Normal Mode of Operation  
RTS V.54  
Loopback  
CTS Follows  
511 TST  
ON  
Self Test Netwk Test No DS0  
Network  
Active  
OFF  
OFF  
OFF  
Active  
OFF  
Mapped Alarm  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
DCD  
DSR  
OFF  
OFF  
Where “—” = don’t care  
Force On = On under all conditions  
This table indicates conditions which cause the PORT CONTROL  
SIGNALS to be deactivated.  
Dial Backup Config  
Under DBU CONFIG, 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 ORIGINATE and the other to  
ANSWER. Upon a network failure, only the Originate  
DBU initiates backup by dialing the 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: DISABLE, ORIGINATE, ANSWER  
Backup On  
Selects the conditions that cause the Nx/DBU to ini-  
tiate Backup.  
NET FAIL  
Backup occurs on RED ALARM, YELLOW ALARM, BLUE  
ALARM and LOS.  
61202156L2-1  
TDU 120e User Manual  
5-25  
 
   
Chapter 5. Configuration Menu  
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.  
Pattern Verify  
Selects whether or not the DBU will use its pattern  
generator and receiver to authenticate backup  
attempts. When the local and remote units are both  
Nx/DBUs, set to ENABLE; otherwise set to DISABLE.  
Choices: ENABLE, DISABLE  
Backup Delay  
Selects the time allowed to elapse between the net-  
work going into alarm or no data transmissions and  
the backup beginning.  
Choices: 1 SEC, 3 SEC, 10 SEC, 30 SEC, 1 MIN, 5 MIN,  
10 MIN  
Restore Delay  
Selects the time that elapses between the network  
going out of alarm or data being received and the  
backup call being taken down. If NEVER is selected,  
the user must deactivate the backup mode.  
Choices: 1 SEC, 3 SEC, 10 SEC, 30 SEC, 1 MIN, 5 MIN,  
10 MIN, NEVER  
Retry Delay  
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 TIMES, 10 TIMES.  
5-26  
TDU 120e User Manual  
 
61202156L2-1  
Chapter 5. Configuration Menu  
Backup Testing  
Selects the options for the automatic ISDN verifica-  
tion feature of the Nx/DBU. Verification of the  
backup circuit does not disrupt data on the T1.  
Backup Test: Selects the frequency of automatic backup  
circuit verification by the DBU.  
Choices: MANUAL, HOURLY, DAILY, WEEKLY  
Test Hour: Selects the hour of the day the Backup test will  
occur.  
Choices: 0 - 23  
Test Day: If weekly Backup test is selected, selects which  
day to perform the test.  
Choices: MONDAY - SUNDAY  
WKEND Lockout  
If no backup is desired from midnight Friday to mid-  
night Sunday, set this selection 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  
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 page 6-2 for instructions on setting date and  
time.  
61202156L2-1  
TDU 120e User Manual  
5-27  
 
Chapter 5. Configuration Menu  
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: D4, ESF  
Code  
CODE sets the line code for the base DS-1 interface.  
Choices: AMI, B8ZS  
Yellow Alarm  
YELLOW 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 inter-  
face cable.  
Choices:  
SHORT HAUL INTERFACES (ft) - 1-133, 133-266, 266-399, 399-  
533, 533-655  
LONG-HAUL INTERFACES - 0dB -7dB, -15dB, -22dB, auto  
Inband Loopback  
(INBAND LPBACK)  
IN-BAND LOOPBACK sets the base DS-1 to accept or reject  
in-band loopup or loopdown codes (per ANSI T1.403  
specification) which may be sent to the card over the  
DS-1 interface. This loopback is a line loopback.  
Choices: ACCEPT, REJECT  
5-28  
TDU 120e User Manual  
61202156L2-1  
 
           
Chapter 5. Configuration Menu  
Robbed Bit Signaling  
This menu option is used to enable/disable robbed-bit  
signaling.  
Whenever the base DS-1 interface is connected to termi-  
nal equipment (e.g., 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 (e.g., PRI).  
For applications requiring robbed-bit signalling as well  
as a messaging channel (e.g., some proprietary PBX  
channels), 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  
BLOCK, this item defines the first DS0 to extract signaling  
from.  
RBS End  
When the Robbed Bit Signaling option is set 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.  
61202156L2-1  
TDU 120e User Manual  
5-29  
 
     
Chapter 5. Configuration Menu  
5-30  
TDU 120e User Manual  
 
61202156L2-1  
Chapter 6  
Utility Menu  
UTIL  
The UTILITY menu displays and sets system parameters.  
See Figure 6-1. This includes setting the time and date, re-  
setting all parameters to factory values, or reinitiating 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 configurations  
to factory settings)  
2) FACT RESTORE  
3) SET PASSCODE  
4) UNIT ID  
NEW PASSCODE  
VERIFY PASSCODE  
3) UTIL  
5) SOFTWARE REVISION  
(Displays Current  
Software Revision)  
6) PORT UTILITY  
7) MAC ADDRESS  
NX/DBU (0.1)  
DS-1 (0.2)  
(OPTION PORTS)  
Figure 6-1. Utility Menu Tree  
61202156L2-1  
TDU 120e User Manual  
6-1  
 
     
Chapter 6. Utility Menu  
Menu flow is depicted from left to right. At every level of  
the menu, press Escape to return the system to the previ-  
ous menu level. Pressing Escape repeatedly returns the  
system to the Main menu.  
Time/Date  
This menu option displays or edits the current time and  
date. The TDU 120e maintains the time and date during  
power-off conditions.  
If you want to...  
Do this...  
Record a numeric  
change  
Press Enter (this records the entry and moves to the  
next editing position)  
Move to a different field Press Enter at the editing position without making  
to edit any changes, or use the up and down arrow keys.  
End the editing process Press Escape.  
Factory Restore  
There are two ways to execute a factory restore -- through  
the menus and by holding the ACO button down during  
power-up. The factory restore menu item restores the fac-  
tory default settings for all unit parameters, including  
configured DS0 maps. The CONTROL PORT RATE, PASS-  
CODE, UNIT ID, and IP PARAMETERS are not affected by the  
FACTORY RESTORE command.  
A factory reinitialization can also be executed by holding  
the ACO button down during power-up. All factory op-  
tions including control port rate, Pass code, Unit ID, and  
IP parameters are restored to factory settings with this  
procedure. During a factory reinitialization, the Remote  
LED will turn on. The Remote LED will turn off after the  
factory reinitialization is complete. The ACO button may  
be released at this time.  
6-2  
TDU 120e User Manual  
61202156L2-1  
 
       
Chapter 6. Utility Menu  
Set Passcode  
Change/Set a Passcode  
The passcode can be changed or set at any time or elimi-  
nated altogether through the Utility menu item SET  
PASSCODE.  
The passcode can be numeric only. After entering the  
desired passcode, press Enter.  
Set a null passcode at the SET PASSCODE menu by press-  
ing Enter without any numbers. This sets a null passcode  
and grants unlimited access.  
Lost Passcode  
If the passcode number is lost, contact ADTRAN Techni-  
cal Support for assistance (see page xi of this manual).  
No Passcode Desired  
At the NEW PASSCODE prompt (in the Set Passcode  
menu), press Enter without any numerical entry. The sys-  
tem nullifies 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 mode. Editing or  
changing the UNIT ID requires the use of a password as in  
editing mode. Unit Identification numbers must be be-  
tween 2 and 999. If an out-of-range number is entered,  
the unit assumes the upper limit number of 999.  
61202156L2-1  
TDU 120e User Manual  
6-3  
 
                   
Chapter 6. Utility Menu  
To Set the Unit Identification  
In the UNIT ID menu under the UTIL menu, enter any val-  
ue between 2 and 999. The number 1 is reserved for the  
PC.  
Pressing Enter records the Unit ID number and establish-  
es its availability for operation by remote control. The  
unit proceeds to the SET CONTROL PORT prompt.  
No Unit ID Desired  
Without entering any numbers at the Unit ID prompt,  
press Enter. Pressing Enter with no Unit ID recorded es-  
tablishes the 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 control-  
ler. This information is required when requesting assis-  
tance from ADTRAN Technical Support or when updates  
are needed. Press Escape to exit.  
Port Utility  
This menu provides access to the display of the current  
software information for each port installed in the unit.  
This information is required when requesting assistance  
from ADTRAN Technical Support or when updates are  
needed.  
MAC Address  
Displays the Ethernet Mac address for the 10BaseT port.  
6-4  
TDU 120e User Manual  
 
61202156L2-1  
                   
Chapter 7  
TEST  
The TEST menu initiates different types of unit tests and  
displays test results. The TEST menu contains four items.  
See Figure 7-1.  
LINE ON  
LINE ON  
ATT INBAND LLB  
ANSI FDL PLB  
ANSI FDL LLB  
ANSI FT1 LLB  
NO LOOPBACK  
1) NETWORK INTR LBKS  
2) LOCAL LOOPBCK  
PAYLOAD  
PAYLOAD ON  
NO LOOPBACK  
1) NETWORK TESTS  
3) REMOTE LOOPBCK  
ALL ONES  
5) TEST  
3) TEST PATTERN  
ALL ZEROS  
QRSS ALL DS0S  
QRSS TST DS0S  
NONE  
QRSS PATTERN  
ES  
4) PATTERN RESULT  
(displays results)  
NX/DBU (0.1)  
BES  
SES  
SYNC  
2) RUN SELF-TEST  
3) PORT TEST  
1) DTE LOOPBACK  
2) 511 PATTRN  
3) 511 RESULTS  
4) DBU LOOPBACK  
5) DBU TEST  
(displays results)  
TESTS OFF  
4) CANCEL TESTS  
FORCE BACKUP  
INTERFACE TST  
6) DBU DATA CNTRL  
7) DBU TST RESULT  
(display results)  
(display results)  
1) LOOPBACK  
DS-1 (0.2)  
PORT LOOPBACK  
LINE LOOPBACK  
(OPTION PORTS)  
Figure 7-1. Test Menu Tree  
61202156L2-1  
TDU 120e User Manual  
7-1  
 
       
Chapter 7. Test Menu  
Executing tests will disrupt some of the normal operation. See individual menu  
items concerning tests before executing.  
Menu flow is depicted from left to right. At every level of  
the menu, pressing Escape returns the system to the pre-  
vious menu level. Pressing Escape repeatedly returns the  
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  
A number of different loopbacks can be invoked locally  
from the front panel, by T-Watch PRO commands, or re-  
motely by using special in-band codes (AT&T D4 net-  
work loop-up and loop-down codes). Additionally, the  
loopbacks can be remotely controlled by means of out-of-  
band commands by the T1 ESF FDL or from T-Watch PRO  
by a modem connection.  
7-2  
TDU 120e User Manual  
61202156L2-1  
 
       
Chapter 7. Test Menu  
Network Interface Loopbacks  
Network interface loopbacks affect the entire T1 data  
stream. See Figure 7-2. The two types of network loop-  
backs are:  
Line  
Loops all of the received data back toward the network.  
The transmitted data is the identical line code that was  
received, including any bipolar violations or framing  
errors.  
Payload  
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  
DS1  
Payload Loopback  
Line Loopback  
Figure 7-2. Network Loopback Tests  
Local Loopback  
There are three available choices for setting the local loop-  
back:  
Line On  
Activates the line loopback.  
Payload On  
Activates the payload loopback.  
61202156L2-1  
TDU 120e User Manual  
7-3  
 
                         
Chapter 7. Test Menu  
No Loopback  
Deactivates the loopback. Scroll to select a setting and  
press Enter to record the setting.  
Remote Loopback  
Activates the same loopbacks as LOCAL LOOPBACK, but at  
the far end.  
Uses either the inband loopup code as specified by ANSI  
T1.403 for line loopback (ATT In-Band LLB), or the FDL as  
specified in ANSI T1.403 for payload and line loopback  
codes.  
The following options are available:  
ATT In-Band LLB  
Activates the line loopback using inband code.  
ANSI FDL PLB  
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 transmission of an FT1 loopback using the  
inband code described in T1.403.  
No Loopback  
Deactivates the loopback.  
Remote Loopback can only be used with Fractional T1 if the ANSI FT1 LLB is  
selected.  
7-4  
TDU 120e User Manual  
61202156L2-1  
 
                           
Chapter 7. Test Menu  
After a REMOTE 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 Patterns  
All Ones  
Sends an all ones pattern to the network.  
All Zeros  
Sends an all zeros pattern to the network.  
QRSS Pattern  
The QRSS pattern is commonly used to simulate real  
data in T1 interfaces. This pattern can be assigned to  
appear in all DS0s or only in TST DS0S. When QRSS is  
set in all DS0s and one of the network loopbacks previ-  
ously described is activated at the far end, a total end-to-  
end integrity check can be run without the need for any  
external test equipment.  
When QRSS is assigned to TST DS0S, an integrity check  
of the link can be run along with normal data flow. The  
TST DS0S are user assigned as part of the DS0 Map.  
This sets the pattern for the test and initiates the trans-  
mission of the pattern. The test is terminated by selecting  
NONE.  
The following patterns are available:  
QRSS All DS0s  
Generates a QRSS test pattern and inserts the pattern into  
all DS0s.  
61202156L2-1  
TDU 120e User Manual  
7-5  
 
                   
Chapter 7. Test Menu  
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.  
Instructions for Generating a QRSS Test Pattern  
Step Action  
Select QRSS ALL DS0s.  
1
2
Press Enter to record the selection. The TDU 120e  
starts to generate a QRSS test pattern and inserts  
the pattern into all DS0s.  
To end the test, select None.  
3
Pattern Result  
Displays the results of the test currently active. 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.  
7-6  
TDU 120e User Manual  
 
61202156L2-1  
                     
Chapter 7. Test Menu  
SES  
The number of seconds with more than 320 bit errors.  
*SYNC  
Indicates if pattern sync is (YES) or is 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 NONE or CLEARED.  
Using TST DS0s for testing can be very useful, particu-  
larly in Fractional T1 applications.  
How to Run an End-to-End Test on Fractional DS0s  
Step  
1
Action  
Set the TST for Map B 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.  
2
A single DS0 can be used for continuous testing while other DS0s are passing  
normal data. This will also provide an end-to-end check on the entire link. Set  
each end to send QRSS in TST DS0s (using 1 DS0) and occasionally view the  
results on the Pattern Result menu selection.  
61202156L2-1  
TDU 120e User Manual  
7-7  
 
         
Chapter 7. Test Menu  
Run Self-Test  
The self-test checks the integrity of the internal operation  
of the electronic components by performing memory tests  
and by sending and verifying data test patterns through  
all internal interfaces. Although actual user data cannot  
be passed during these tests, the self- test can be run with  
the network and DTE interfaces in place and will not dis-  
turb any external interface.  
The memory portion of the self-test automatically exe-  
cutes upon power-up.  
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  
also run on various parts of the internal electronics. These  
run during normal operation to confirm continued cor-  
rect functioning.  
This menu selection is used to execute a full internal self-  
test. The results of the self-tests are displayed on the ter-  
minal. Upon invoking the command, the terminal dis-  
plays System Self-Test and the Test LEDs are illuminated.  
Test failures 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 on-  
board 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 verification  
Board-to-board interface test  
7-8  
TDU 120e User Manual  
61202156L2-1  
 
   
Chapter 7. Test Menu  
A test pattern is sent from the controller through a loop-  
back on all other boards and is checked on the controller.  
This verifies the data path, clocks, and control signals.  
If a failure is detected, note the failure number prior to  
contacting ADTRAN Technical Support (see page xi of  
this manual).  
The execution of the self-test will disrupt normal data flow and prevent remote  
communication until the self-test is completed.  
Port Tests  
The PORT TESTS menu is used to activate testing of specif-  
ic data ports. It controls the activation of loopbacks and  
the initiation of data test patterns. Test results are dis-  
played on the terminal screen.  
The execution of Port Tests will disrupt normal data flow in the port being tested.  
Nx/DBU (0.1) Menu Items  
Nx/DBU (0.1) is the base Nx interface. It offers the follow-  
ing test functions:  
DTE LOOPBACK  
This initiates a loopback. The following options are avail-  
able:  
REMOTE  
The remote loopback causes a V.54 code to be sent to  
the far end.  
The Nx at the far end activates a PORT/LOCAL  
loopback upon detection of the V.54 code.  
61202156L2-1  
TDU 120e User Manual  
7-9  
 
           
Chapter 7. Test Menu  
OFF  
The loop is deactivated.  
REM V.54 Cont.  
The remote loopback causes a continuous V.54 code  
to be sent to the far end. The Nx at the far end acti-  
vates 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 response, the display shows  
Looping. If successful, the display changes to Looped-Up. If unsuccessful, the  
display shows Failed.  
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 OFF.  
OFF  
The pattern generation and check is disabled.  
511 RESULTS  
Displays the results of the 511 test indicated in the 511  
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 exter-  
nal DCE.  
OFF  
Terminates the loopback test.  
DBU TEST  
This selection is used to force a backup to occur even if a  
backup condition does not exist.  
7-10  
TDU 120e User Manual  
61202156L2-1  
 
               
Chapter 7. Test Menu  
TEST OFF  
Turns off DBU tests.  
FORCE BACKUP  
Forces a backup regardless of time-of-day lockouts  
or network conditions.  
INTERFACE TST  
Causes the external DCE to dial its stored number.  
After the connection is established, the DBU sends a  
test pattern to verify the backup network. This test  
does not disrupt data or the primary network.  
DBU DATA/CNTRL  
Allows status of DCD and RI to be monitored while the  
INTERFACE TST is on. If the dial up network is correctly  
configured and dialed up, there should be an asterisk (*)  
over DCD.  
DBU TST RESULT  
When an interface test is active, this screen will show the  
total number of DATA blocks received and the number of  
blocks with errors.  
DS-1 (0.2) Menu Items  
Loopback  
LOOPBACK activates the loopback function on the base  
DS-1 interface. The available loopbacks are:  
Port Loopback  
Towards the NI.  
Line Loopback  
Towards the PBX or other terminal equipment.  
Cancel Tests  
Use this menu selection to deactivate all active tests, in-  
cluding tests on option modules.  
61202156L2-1  
TDU 120e User Manual  
7-11  
 
             
Chapter 7. Test Menu  
7-12  
TDU 120e User Manual  
 
61202156L2-1  
Chapter 8 Remote/Management Menus  
The REMOTE/MANAGEMENT menu initiates Telnet/termi-  
nal sessions with remote devices and displays various  
management information.  
REMOTE MENU ACCESS  
This menu displays Telnet menus for a remote device  
(may be another TSU/TDU or any other ADTRAN prod-  
uct 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 Access Table. CTRL + X termi-  
nates the session and returns to the TDU 120e Main menu.  
MANAGEMENT CONFIGURATION  
This menu sets management information, such as SNMP  
community names and trap destination addresses.  
61202156L2-1A  
TDU 120e User Manual  
8-1  
 
           
Chapter 8. Remote/Management Menus  
UNIT ACCESS TABLE  
This menu edits/creates the Unit Access Table and 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).  
An entry in the table is required only to support proxy  
SNMP MIB access or polling. For MIB access, an entry is  
required only if the unit's passcode is not the same as the  
DEFAULT UNIT PASSCODE, or the unit is a single port TSU  
Standalone.  
It is not necessary to have an entry in this table for a remote unit in order  
to Telnet to it or forward SNMP traps from it. In the Telnet case, the  
Remote Menu Access menu is selected from the Main menu and a unit  
ID is entered which may or may not be in the Unit Access Table.  
Units accessed via T-Watch PRO over TCP/IP use the  
unit ID and passcode set by T-Watch PRO running on the  
PC.  
____________________________Unit Access Table________________________  
Unit ID  
20  
Passcode  
DEFAULT  
Type  
Polled  
No  
Poll Status  
Standard  
3
6
0033  
0095  
0022  
Standard  
Yes  
UP  
TSU Standalone No  
Standard Yes  
8
UP  
1) Add New Unit  
2) Modify Unit  
3) Delete Unit  
4) Default Unit Passcode 0022  
5) OK  
Figure 8-1. Unit Access Table  
8-2  
TDU 120e User Manual  
61202156L2-1A  
 
       
Chapter 8. Remote/Management Menus  
The following chart describes each command of the Unit  
Access Table.  
Table 8-1. Unit Access Table Commands  
Command  
What it does...  
Adds a new device to the table.  
Add New Unit  
You must enter a device Unit ID, passcode, Unit type, and polled  
flag. Unit type can be:  
Standard (which supports any TSU/TDU Multiplexer and the ISU  
512), or TSU Standalone (a single port TSU with no option card slot).  
A passcode of 0 to 9999 for each device or DEFAULT may be  
selected, which results in the default passcode being used (defined  
as 0022 in Figure 8-1 on page 8-2).  
Traps are normally sent from the unit in alarm to the TDU 120e. For  
units in the Unit Access Table that are not chained directly to the  
TDU 120e but are managed over Inband or the FDL, traps are not  
automatically forwarded. Polling must be enabled on the TDU 120e  
for these units in order to receive Traps on the NMS. The TDU 120e  
can be configured to poll selected units for traps by enabling the  
polled option when adding or modifying a unit entry.  
Allows unit ID, passcode, device type, and polled flag to be changed  
for an existing entry in the table.  
Modify Unit  
Delete Unit  
Deletes an entry in the table.  
Sets the default passcode for all devices in the table that have  
passcodes set to DEFAULT, or for any unit not listed in the table.  
Default Unit  
Passcode  
OK  
Returns to the CONFIGURE AGENT menu.  
61202156L2-1A  
TDU 120e User Manual  
8-3  
 
 
Chapter 8. Remote/Management Menus  
SNMP Read Community  
SNMP READ COMMUNITY NAME defaults to public. NMSs  
using this community name have Read access for all sup-  
ported MIB objects but do not have the ability to change  
MIB objects. This value must be set to the same value on  
both the TDU 120e and the NMS (OpenView®, etc.) in or-  
der for the NMS to have Read access to MIBs supported  
by the TDU 120e. This value must be a text string of 16  
characters or less.  
SNMP Read/Write Community  
SNMP NMS using this community name have full Read/  
Write access to all supported MIB objects (defaults to pri-  
vate). This setting must be the same value on both the  
TDU 120e and the NMS in order for the NMS to have  
Read/Write access to MIBS supported by the TDU 120e.  
This value must be a text string that is 16 characters or  
less.  
To access other units external to the TDU 120e (proxied units) using an  
SNMP MIB browser, append a period and the unit ID of the external  
device to the Read Only and Read/Write community name used in the  
MIB Browser, for example public.4. See Appendix A, Understanding  
SNMP, for more information.  
SNMP Trap Community  
This community name is used for all SNMP traps for-  
warded by the TDU 120e. Traps received from daisy-  
chained units have a period and the unit ID appended to  
the trap community name.  
Host 1 Trap IP Address  
The first of four entries for SNMP trap destination  
addresses. The TDU 120e forwards all SNMP traps to the  
IP address specified in this entry. If the address is set to  
the default value of 0.0.0.0, no traps are forwarded for  
this particular value.  
8-4  
TDU 120e User Manual  
61202156L2-1A  
 
               
Chapter 8. Remote/Management Menus  
Host 2 Trap IP Address  
Defaults to 0.0.0.0. Second destination address for SNMP  
traps.  
Host 3 Trap IP Address  
Defaults to 0.0.0.0. Third destination address for SNMP  
traps.  
Host 4 Trap IP Address  
Defaults to 0.0.0.0. Fourth destination address for SNMP  
traps.  
System Name  
A text string that can uniquely identify an SNMP man-  
aged node.  
System Contact  
A text string containing the name, phone number, and so  
forth, of the individual responsible for maintaining an  
SNMP managed node.  
System Location  
A text string describing the physical location of an SNMP  
managed node (for example, SECOND FLOOR PBX  
ROOM).  
Auth. Fail Traps Sent  
When enabled, the TDU 120e issues an SNMP trap when  
any SNMP request is received with an invalid commu-  
nity name. Can be used for security purposes.  
Choices: Disabled, Enabled. Defaults to Disabled  
Poll Link Status Traps Sent  
(DISABLED, ENABLED, defaults to DISABLED)  
When enabled, the TDU 120e sends an SNMP trap when-  
ever a device configured to be polled fails to respond.  
When the device begins responding to polls, a poll link-  
up trap is sent. The format of the traps are defined in the  
agent MIB.  
Choices: Disabled, Enabled. Defaults to Disabled  
61202156L2-1A  
TDU 120e User Manual  
8-5  
 
                               
Chapter 8. Remote/Management Menus  
Ping IP Host  
Allows the user to ping a specific IP address.  
Telnet/Terminal Timeout  
The TDU 120e terminates a Telnet or terminal session if  
no activity is detected for this length of time. Only one  
Telnet or terminal session may be active at one time. This  
timeout prevents an unattended session from blocking  
interactive access to the agent. The default value is five  
minutes.  
Telnet/Terminal Password  
This option allows modification of the password  
required for entry into a Telnet or terminal session. The  
default value is ADTRAN.  
Exit  
Returns to the TDU 120e Main menu.  
Flash Download  
The TDU 120e uses flash memory that allows software  
updates via the EIA-232 port or the 10BaseT port.  
XMODEM  
Open a terminal session to the TDU 120e and select  
XMODEM FLASH DOWNLOAD. This selection allows the  
user to perform a flash upgrade using XMODEM proto-  
col.  
Trivial File Transfer Protocol (TFTP)  
Open a Telnet session to the TDU 120e and select TFTP  
FLASH DOWNLOAD. This selection allows the user to set  
the IP address of the server where the upgrade file  
resides. The user can also set the filename of the upgrade  
file if it is other than default.  
8-6  
TDU 120e User Manual  
61202156L2-1A  
 
                     
Chapter 8. Remote/Management Menus  
TFTP Server IP Address: 0.0.0.0.  
Enter the IP address of the server where the upgrade file  
resides.  
The server address is not retained over a power cycle.  
TFTP Server File name: T120e.biz  
Enter the name of the upgrade file that resides on the  
TFTP Server.  
The default filename may already be correct.  
Begin Firmware update.  
Select this item and press Enter to begin the flash  
upgrade using TFTP. After the download is complete, the  
TDU 120e will close the Telnet session to reprogram the  
software. The Telnet session may be opened again sev-  
eral minutes later. If the upgrade fails after the Telnet ses-  
sion is closed, the unit must be Flash downloaded using  
XMODEM.  
Quit Session  
Terminates the Telnet/terminal session.  
61202156L2-1A  
TDU 120e User Manual  
8-7  
 
         
Chapter 8. Remote/Management Menus  
8-8  
TDU 120e User Manual  
61202156L2-1A  
 
Appendix A Understanding SNMP  
WHAT IS SNMP?  
The term SNMP broadly refers to the message protocols  
used to exchange information between the network and  
the managed devices, as well as to the structure of net-  
work management databases.  
SNMP came about as local area network (LAN) environ-  
ments became standardized over the past ten years and  
multi-vendor equipment grew with competition. It be-  
came necessary to manage the various vendor equipment  
from a single control console. Thus, the SNMP emerged  
as the standard for managing commercial TCP/IP net-  
works.  
Basic Components of SNMP  
SNMP has three basic components: Network Manager,  
Agent, and MIB.  
Network Manager  
This is a control program that collects, controls, and pre-  
sents data pertinent to the operation of the network  
devices. It resides on a network management station.  
Agent  
This is a control program that responds to queries and  
commands from the network manager and returns  
requested information or invokes configuration changes  
initiated by the manager. It resides in each network  
device.  
61202156L2-1  
TDU 120e User Manual  
A-1  
 
   
Appendix A. Understanding SNMP  
MIB  
This is an index to the organized data within a network  
device. It defines the operating parameters that can be  
controlled or monitored. When requesting the network  
manager to retrieve or modify a particular piece of infor-  
mation about a network device, the network manager  
transmits the request to that network device. The agent  
in that device interprets the incoming request, performs  
the requested task, and sends its response to the network  
manager. The network manager collects all the data from  
the various network devices and presents it in a consis-  
tent form.  
Commands  
Using SNMP Version 1, the network manager can issue  
three types of commands:  
GetRequest  
Retrieves a single item or the first in a series from a net-  
work device.  
GetNextRequest  
Retrieves the next item in a series from a network device.  
SetRequest  
Writes information to a network device.  
A-2  
TDU 120e User Manual  
 
61202156L2-1  
       
Appendix A. Understanding SNMP  
Message  
The network device issues two types of messages:  
GetResponse  
The response to a network manager GETREQUEST or  
GETNEXTREQUEST command.  
Trap  
An unsolicited message issued by a network device to  
report an operational anomaly or an alarm condition to  
the network manager.  
These messages are typically encased within informa-  
tional packets and transported over the LAN or WAN  
(wide area network).  
61202156L2-1  
TDU 120e User Manual  
A-3  
 
     
Appendix A. Understanding SNMP  
TDU 120e SNMP Access  
By default, SNMP MIB Browser access to the TDU 120e IP  
address with the configured community names, accesses  
the host. The TDU 120e can also act as an SNMP proxy  
agent for external units.  
To access MIB variables on externally chained devices,  
append a period and the Unit ID of the device to the Read  
and Read/Write community names.  
Example:  
If...  
Then...  
The Read community name  
Specify public.3 as the community  
configured in the TDU 120e is name in the SNMP MIB Browser.  
public,  
This allows reading SNMP MIB  
variables from externally chained  
unit 3.  
The external unit's passcode is An entry must be added to the Unit  
not the default,  
Access Table for SNMP MIB access.  
However, SNMP traps for the unit  
can be forwarded without the entry.  
See Unit Access Table on page 8-2,  
for more information.  
A-4  
TDU 120e User Manual  
61202156L2-1  
 
 
Appendix A. Understanding SNMP  
SNMP Trap Configuration  
Traps received by the TDU 120e from external units and  
the host unit are converted into SNMP traps and forward-  
ed to the configured NMS. The source of the trap is  
uniquely identified at the NMS by a combination of the IP  
address of the TDU 120e, and the Unit ID of the sending  
device. The Unit ID is present in the trap packet append-  
ed to the end of the trap community packet name, for ex-  
ample public.4. It is also included as an Octet String  
variable (adProdPhysAddress) in the trap packet as de-  
fined in the individual product MIBs. The latest versions  
of the product MIBs, by default, display the appended  
trap community name in their descriptions.  
Typical steps required for Management Station trap con-  
figuration are:  
1. loading the device specific MIBs, and  
2. loading or creating device-specific Trap Definition  
Files.  
The current product MIBs contain keywords embedded  
in comments that can be used by some network manage-  
ment platforms to automatically generate Trap Defini-  
tions. Otherwise, the descriptions may be used as a  
template for Trap Definitions.  
If individual option card port and slot identification is re-  
quired, it is present in the four-byte adProdPhysAddress  
field of the trap packet. The first two bytes are the Unit ID  
of the base controller (least significant byte first). The next  
two bytes are port and slot number. This field is the sec-  
ond object identifier in all traps sent from TSU/TDU  
products. For traps from the ISU 512, the Unit ID is the  
first object identifier. See the product MIBs for more infor-  
mation.  
Definitions for Poll Link Up/Down traps are included in  
the TDU 120e MIB file: TDU 120e.MIB.  
61202156L2-1  
TDU 120e User Manual  
A-5  
 
 
Appendix A. Understanding SNMP  
SNMP MIB Browser Configuration  
The following steps are required to configure Network  
Manager MIB variable access through the TDU 120e:  
Step  
Action  
Load the desired product MIBs on the network  
management station.  
1
Example:  
If the administrator is managing TDU 120e and ISU 512  
devices, load TDU 120e.MIB, ISU512.MIB, and  
RFC1406.MIB.  
Create device entries in the NMS database for all units  
that are to be managed through the TDU 120e.  
2
3
4
The host unit should be configured as the Proxy agent for  
the external units. The IP address or host name used for  
the proxy designation is that of the TDU 120e.  
Set community names in the device’s entries for external  
units to the TDU 120e community name with the device  
Unit ID appended.  
See TDU 120e SNMP ACCESS on page A-4 for more  
information.  
Set the device timeout for all device entries in the NMS  
device database to five seconds, including the host unit.  
A-6  
TDU 120e User Manual  
 
61202156L2-1  
 
Appendix A. Understanding SNMP  
SNMP MIB Files  
The TDU 120e supports several standard MIBs including:  
MIB-II (RFC-1213),  
DS1 T1/E1 MIB (RFC-1406), and  
the Ethernet MIB (RFC-1643).  
It also supports several ADTRAN enterprise-specific  
MIBs including:  
ADTRAN Product MIB (ADTRAN.MIB),  
ADTRAN DS1 extensions MIB (ADS1.MIB), and  
all TSU/TDU Enterprise MIBs, such as TDU  
120e.MIB.  
The standard MIB files are usually included with most  
SNMP network management software. The latest version  
of the ADTRAN enterprise specific MIBs are available in  
the following places:  
ADTRAN anonymous ftp site: ftp.adtran.com  
Dial-up: BBS (256 -963-8169).  
Adtran web site: http://www.adtran.com.  
61202156L2-1  
TDU 120e User Manual  
A-7  
 
 
Appendix A. Understanding SNMP  
A-8  
TDU 120e User Manual  
 
61202156L2-1  
Appendix B  
Connector Pinouts  
WIRING  
Network  
On the rear of the TDU 120e are two connectors labeled  
NETWORK. These connectors are used for connecting to  
the network. See Table B-1 for the pinout for the 8-pin  
modular connector and Table B-2 on page B-2 for the pi-  
nout of the male 15-pin D-connector.  
Table B-1. Network Pinout of the 8-Pin Modular Connector  
Pin  
Name  
R1 RXDATA-RING  
T1 RXDATA-TIP  
UNUSED  
Description  
1
Receives data from the network  
Receives data from the network  
2
3
4
R
T
TXDATA-RING  
TXDATA-TIP  
UNUSED  
Sends data toward the network  
Sends data toward the network  
5
6,7,8  
61202156L2-1  
TDU 120e User Manual  
B-1  
 
       
Appendix B. Connector Pinouts  
Table B-2. Network Pinout of the Male 15-Pin D-Connector  
Pin  
Name  
Description  
1
T
TX DATA TIP  
FRAME GROUND  
RXDATA-TIP  
FRAME GROUND  
UNUSED  
Sends data toward the Network  
2
FG  
T1  
FG  
3
Receives data from the Network  
4
5,6,7,8  
9
R
TXDATA-RING  
UNUSED  
Sends data toward the Network  
Receives data from the Network  
10  
11  
R1  
RXDATA-RING  
UNUSED  
12,13,14,15  
Control In/Chain In  
This is used as an RJ-45 port for connection to a computer  
or modem (Control In) or to another TSU/TDU family  
multiplexer or TSU 100 (Chain-In). See Table B-3 for the  
pinout for the control/chain-in connector.  
Table B-3. Control In/Chain In Pinout  
Pin  
Name  
GND  
Description  
1
2
3
4
5
6
7
8
Ground - connected to unit chassis  
Request to send - flow control  
Data received by the TDU 120e  
RTS  
RXDATA  
UNUSED  
TXDATA  
Data transmitted by the TDU 120e  
Ext Alarm A When grounded, generates Alarm A  
Ext Alarm B When grounded, generates Alarm B  
CTS  
Clear-to-send-flow control  
B-2  
TDU 120e User Manual  
 
61202156L2-1  
     
Appendix B. Connector Pinouts  
Control-Out/Chain-Out  
This is used to connect to another TDU/TSU family mul-  
tiplexer chain-in connector. See Table B-4 for the pinout  
for the chain-out connector.  
Table B-4. Chain-Out Pinout  
Pin  
1
Name  
GND  
Description  
Ground - connected to unit chassis.  
2
UNUSED  
TX DATA  
3
Data transmitted to chained units by the  
TDU 120e. Connect to RX DATA of the next  
unit (chain-in pin 3).  
4
5
UNUSED  
RX DATA  
Data received from chained units by the  
TDU 120e. Connect to TX DATA of the next  
unit (chain-in pin 5).  
6,7,8 UNUSED  
61202156L2-1  
TDU 120e User Manual  
B-3  
 
   
Appendix B. Connector Pinouts  
Craft Port  
This is used as an RJ-45 port for connection to a computer  
or modem (Control In) or to another TSU/TDU family  
multiplexer or TSU 100 (Chain-In). See Table B-5 for the  
pinout for the craft port connector.  
Table B-5. Craft Port Pinout  
Pin  
1
Name  
GND  
Description  
Ground - connected to unit chassis  
Request to send - flow control  
Data received by the TDU 120e  
2
RTS  
3
RXDATA  
UNUSED  
TXDATA  
UNUSED  
CTS  
4
5
Data transmitted by the TDU 120e  
Clear to send-flow control  
6,7  
8
B-4  
TDU 120e User Manual  
 
61202156L2-1  
   
Appendix B. Connector Pinouts  
Nx56/64 DTE (V.35)  
See Table B-6 for the V.35 pinout Nx56/64 DTE pinout.  
Connector type V.35  
Table B-6. V.35 Pinout for Nx56/64 DTE  
Pin  
A
Name  
101  
102  
105  
106  
107  
109  
Description  
Protective ground (PG)  
B
Signal ground (SG)  
C
Request to send (RTS) from DTE  
Clear to send (CTS) to DTE  
Data set ready (DSR) to DTE  
Received line signal detector (DCD) to DTE  
Local loopback (LL)*  
D
E
F
L, J  
N, BB  
R
Remote loopback (RL)*  
104  
104  
115  
115  
103  
103  
114  
114  
113  
113  
Received data (RD-A) to DTE  
Received data (RD-B) to DTE  
RX clock (RC-A) to DTE  
T
V
X
RX clock (RC-B) to DTE  
P
Transmitted data (TD-A) from DTE  
Transmitted data (TD-B) from DTE  
TX clock (TC-A)  
S
Y
AA  
U
TX clock (TC-B)  
External TX clock (ETC-A) from DTE  
External TX clock (ETC-B) from DTE  
Test mode (TM) to DTE  
W
NN  
*(ignored by TDU 120e)  
61202156L2-1  
TDU 120e User Manual  
B-5  
 
   
Appendix B. Connector Pinouts  
Base DS-1 (PBX)  
On the rear of the TDU 120e are two connectors labeled  
DS-1. These connectors are used for connecting to a PBX  
or other terminal equipment.  
See Table B-7 for the pinout of the 8-pin modular connec-  
tor and Table B-8 on page B-7 for the pinout of the female  
15-pin D-Connector.  
Table B-7. Base DS-1 Pinout of the 8-Pinout Modular Connector  
Pin  
Name  
Description  
1
R1 TXDATA-RING Sends data toward the DTE (PBX)  
2
T1 TXDATA-TIP  
UNUSED  
Sends data toward the DTE (PBX)  
3
4
5
R
T
RXDATA-RING Receives data from the DTE (PBX)  
RXDATA-TIP  
UNUSED  
Receives data from the DTE (PBX)  
6, 7, 8  
B-6  
TDU 120e User Manual  
 
61202156L2-1  
   
Appendix B. Connector Pinouts  
Table B-8. Base DS-1 Pinout of the 15-Pin Female D-Connector  
Pin  
Name  
Description  
1
T
RXDATA-TIP  
Receives data from the DTE (PBX)  
2
FG FRAME GROUND  
T1 TXDATA-TIP  
FG FRAME GROUND  
NOT USED  
3
Sends data toward the DTE (PBX)  
4
5, 6, 7, 8  
9
R
RXDATA-RING  
NOT USED  
Receives data from the DTE (PBX)  
Sends data toward the DTE (PBX)  
10  
11  
R1 TXDATA-RING  
NOT USED  
12,13,14,15  
61202156L2-1  
TDU 120e User Manual  
B-7  
 
 
Appendix B. Connector Pinouts  
10BaseT  
This is used to connect the TDU 120e to the local area net-  
work. See Table B-9.  
Connector type (USOC), Shielded 8-pin, module TDU  
120e.  
Table B-9. 10BaseT Ethernet Connector  
Pin  
1
Name (To Nic)  
TX1  
TX2  
RX1  
RX2  
2
3
6
Alarm  
This is used to connect the TDU 120e to an external alarm  
device. See Table B-10.  
Connector Type 4-pin, Eurostyle connector  
Table B-10. External Alarm Device Connector  
Pin  
1
Name  
NC  
Description  
Normally closed  
2
NO  
Normally open  
3
COM  
GND  
Common  
4
Connected to unit chassis  
Power  
Table B-11. Power Connector (DC powered units)  
Pin  
1
Name  
Description  
+24 or +48 VDC  
-24 or -48 VDC  
+
_
2
B-8  
TDU 120e User Manual  
 
61202156L2-1  
         
Appendix C System Messages  
This appendix lists and defines the alarm and status mes-  
sages that appear on the monitor screen.  
ALARM MESSAGES  
Network Interface (NI)  
Red Alarm  
NI unable to frame align with incoming signal.  
Yellow Alarm  
Remote alarm indication (RAI) being received from far  
end.  
Blue Alarm  
Unframed all ones (1s) (AIS) being received at NI.  
Loss of Signal  
No signal detected at NI.  
Nx/DBU Interface  
The following messages indicate an alarm condition on  
the Nx/DBU port:  
Clock Slip  
Difference in frequency of the data clock at the network  
and DTE.  
61202156L2-1  
TDU 120e User Manual  
C-1  
 
                 
Appendix C. System Messages  
PLL Alarm  
Unable to achieve Phase Locked Loop on the clock pro-  
vided by the network interface.  
Zeros Alarm  
All zeros (0s) data being sent toward the network inter-  
face.  
FIFO Alarm  
Error in propagation of data through the FIFOs.  
No EXT Clock  
No external transmit clock at DTE (only appears if EXT  
CLK is selected).  
DS-1 (PBX) Interface  
The following messages indicate a condition on the Base  
DS-1 (PBX) interface:  
Red Alarm  
Not able to frame data coming to the DS-1 interface;  
sometimes referred to as out-of-frame (OOF).  
Yellow Alarm  
Remote alarm indicator (RAI) being received by the DS-1  
interface.  
Blue Alarm  
Receiving unframed all 1s at the DS-1 interface [alarm  
indicator signal (AIS)].  
Loss of Signal  
No signal detected by the DS-1 interface.  
C-2  
TDU 120e User Manual  
61202156L2-1  
 
                 
Appendix C. System Messages  
Status Messages  
Network Interface (NI)  
Payload On  
Payload loopback activated.  
Line On  
Line Loopback activated.  
Loopback Off  
All loopbacks deactivated.  
Factory Restore  
Factory setting restored.  
Power On  
Unit powered on.  
Self-Test  
Internal self-test performed.  
Nx/DBU Interface  
The following messages indicate the status of the Nx/  
DBU card:  
Loop Up  
Data is looped at both the network interface and DTE  
interface of the card.  
Remote Loop Up  
Sending V.54 pattern in an attempt to loop up a remote  
device.  
511 Pattern On  
Sending 511 pattern towards the network interface.  
Loop Down  
Data is no longer looped back at the network interface or  
DTE interface.  
61202156L2-1  
TDU 120e User Manual  
C-3  
 
                         
Appendix C. System Messages  
511 Pattern Off  
No longer sending 511 pattern towards the network  
interface.  
DS-1 (PBX) Interface  
The following messages indicate the status of the DS-1 in-  
terface:  
Frame Slip  
Indicates a Frame Slip has occurred on the DS-1 interface.  
This is present in Alarm History only.  
Line Loop Up  
Line loopback activated.  
Port Loop Up  
Port loopback activated.  
Loopdown  
Loopback has been deactivated.  
C-4  
TDU 120e User Manual  
 
61202156L2-1  
           
Appendix D Specifications  
ELECTRICAL SPECIFICATIONS  
T1/FT1 Interface  
T1 Line Rate  
1.544 Mbits/s +/- 75bps  
Line Code  
Bipolar, RZ; AMI or B8ZS  
Framing  
D4(SF) or ESF  
FT1 Line Rate  
DS0 Channelized (multiple of 64 kbps)  
Transmit Timing  
Network, DTE, U-BR1TE, Secondary, NI, Normal (CSU)  
or Internal  
Input Signal  
0 to -36 dB (DS-1)  
Line-Build-Out  
0, -7.5, -15, -22.5 dB, AUTO  
Connector  
RJ48C, DB 15 (male)  
Test Jacks  
Bantam jacks: Tx and Rx MON, Tx and Rx (to network)  
61202156L2-1  
TDU 120e User Manual  
D-1  
 
                       
Appendix D. Specifications  
Compatibility  
T1 Interface  
Pub 62411  
ESF Format Interface  
TR. 194  
ESF Performance Monitoring  
TR. 54016 and T1.403  
Approvals  
FCC Part 15, FCC Part 68, UL 1950  
Nx/DBU Interface - Port 0.1-Nx56/64 (V.35 Interface)  
DCE Interface  
CCITT V.35 Synchronous  
Rates  
56kbps - 1.536Mbps in 56k or 64k increments  
Clock Options  
Normal/Inverted and internal/external  
Tests  
Local Loopback (bilateral); Remote Loopback (V.54)  
Test Pattern  
511 with errored seconds display and error inject capabil-  
ity  
Data inversion  
Menu selectable  
1s Density Protection  
Force 1s to network after one second of consecutive zeros  
from DTE. User selectable (On/Off)  
CTS, DCD, DSR  
Normal or Force On  
D-2  
TDU 120e User Manual  
61202156L2-1  
 
   
Appendix D. Specifications  
Connector  
Winchester (V.35) female (on the Y cable)  
DS-1 Interface - Port 0.2  
Line Rate  
1.544 Mbps  
Capacity  
1 to 24 DS0s  
Line Codes  
AMI, B8ZS  
Framing  
ESF per ANSI T1.403 and AT&T Pub.TR 54016  
D4 per AT&T Pub. 62411  
Line Length  
Short haul mode: -3 dBDsx to 655 feet in110 ft steps  
Line Build-out  
Long haul mode: 0, -7.5,-15, -22.5, AUTO  
Timing  
Supports network, secondary, and CSU timing modes  
Test Capability  
Line loopback, port loopback (internal toward mux)  
Connector  
RJ48C, DB15 (female)  
Test Jacks  
Rx/Tx MON, Rx and Tx (toward PBX)  
-
61202156L2-1  
TDU 120e User Manual  
D-3  
 
 
Appendix D. Specifications  
Compatibility  
T1 Interface  
Pub 62411  
ESF Format Interface  
TR.194  
ESF Performance Monitoring  
TR. 54016 and T1.403  
Approvals  
FCC Part 15, FCC Part 68, UL 1950  
Management Interfaces  
Chain In/Out Ports/Craft Port  
Interface Devices  
PC Serial Port, Modem or SLIP connection to router  
Interface Type  
RJ-45  
Data Rates  
1200, 2400, 9600, 19200, 38400  
Data Format  
N81  
Protocols  
T-Watch PRO/ADLP, ATEL/ADLP, TCP/IP/SLIP  
Connector  
8-pin, modular  
D-4  
TDU 120e User Manual  
61202156L2-1  
 
   
Appendix D. Specifications  
10BaseT Interface  
Interface  
IEEE 802.3 Compliant  
Rate  
10 Mbps  
Connector  
shielded 8-pin, modular  
Receiver  
accepts signal > 300mV  
Protocols  
Network: IP  
Transport: TCP, UDP  
Services: SNMP, TELNET, ICMP, ARP, PING, T-Watch  
PRO  
Option Slot Interface  
Interface  
ADTRAN proprietary, accepts standard TSU/TDU  
Option Modules.  
Test Jacks  
Rx/Tx MON, Rx and Tx (toward incoming service, i.e.,  
T1, FT1, PBX, etc.) This is for selected option modules  
only.  
61202156L2-1  
TDU 120e User Manual  
D-5  
 
   
Appendix D. Specifications  
Chassis Specification  
1 U High (1-3/4-inch), 19-inch rack mount, 12 inches  
deep.  
An adapter kit is available to mount the unit into a 23-inch rack  
(1200.171L1).  
Environmental Specifications  
Input Power  
AC powered devices: 90-120VAC, 47-63 Hz  
DC powered devices: + or + 48 VDC  
Fuse  
AC powered devices: 0.6A, 250V  
DC powered devices: 1.5 A, 250 V  
Operating Temperature  
0 deg C to 45 deg C  
Max Power  
15 Watts  
Max Current  
AC powered devices: 0.2 A  
DC powered devices: 1A  
D-6  
TDU 120e User Manual  
61202156L2-1  
 
   
Index  
Numerics  
C
10BaseT Interface D-5  
10BaseT, connectors B-8  
511 Pattern Off, status Nx/DBU inter-  
face C-4  
511 Pattern On, status Nx/DBU inter-  
face C-3  
Chain In/Out Ports/Craft Port D-4  
Chain-out, connectors B-3  
Clear Port Alarm 4-8  
Clock Slip, alarm message C-1  
commands, SNMP network manager  
511 PATTRN 7-10  
511 RESULTS 7-10  
Configuration Applications, TDU 120e  
Connector Pinouts B-1  
Control In/Chain In, connectors B-2  
Craft Port, connectors B-4  
CRC, network interface error 4-3  
A
AC powered units, TDU 120e 2-2  
Active Alarms 4-3  
ADTRAN Shipments Include 2-1  
alarm messages C-1  
Alarm, connectors B-8  
All Ones, test pattern 7-5  
All Zeros, test pattern 7-5  
ANSI FDL LLB 7-4  
D
DBU Control 4-6  
ANSI FDL PLB 7-4  
ANSI FT1 LLB 7-4  
ATT In-Band LLB 7-4  
Auth. Fail Traps Sent 8-5  
DBU Data/CNTR 4-6  
DBU DATA/CNTRL 7-11  
B
DBU TEST 7-10  
Base DS-1 (PBX), connectors B-6  
BES, test pattern result 7-6  
Blue Alarm, DS-1 interface alarm mes-  
sage C-2  
Blue Alarm, network interface C-1  
Board level tests, (self-test) 2-8  
BPV, network interface error 4-3  
DBU TST RESULT 7-11  
DC powered units, TDU 120e 2-2  
DCE Interface D-2  
DS-1 (0.2) Menu Items (DS-1 Errors) 4-  
7
DS-1 (PBX) Interface, alarm messages  
C-2  
61202156L2-1  
TDU 120e User Manual  
Index-1  
 
 
Index  
DS-1 (PBX) Interface, status messages  
C-4  
DS-1 Interface - Port 0.2 D-3  
DTE Data/Clock 4-5  
DTE LOOPBACK 7-9  
DTE Port Rate 4-5  
Host 4 Trap IP Address 8-5  
I
Initialization for TDU 120e unit 2-9  
Items provided by customer for TDU  
120e unit 2-2  
DTE Status 4-5  
E
L
editing the data field 3-4  
electrical specifications D-1  
Environmental Specifications D-6  
ES, test pattern result 7-6  
Ethernet Status 4-8  
Line Loop Up, status DS-1 PBX inter-  
face C-4  
Line On, local loopback 7-3  
Line On, status network interface C-3  
Line, network interface loopback 7-3  
Local Loopbck, test menu 7-3  
C-3  
F
Factory Restore 6-2  
Factory Restore, status network inter-  
face C-3  
FCC regulations 1-iii  
FER, network interface error 4-3  
FIFO Alarm, alarm message C-2  
Flash Download 8-6  
Frame Slip, status DS-1 PBX interface  
C-4  
Loop Up, status Nx/DBU interface C-3  
Loopback Off, status network interface  
C-3  
Framing D-1  
front panel, description 3-1  
FT1 Line Rate D-1  
Loopdown, status DS-1 PBX interface  
Loss of Signal, DS-1 interface alarm  
Loss of Signal, network interface alarm  
C-1  
Lost Passcode 6-3  
G
General Menu Operation 3-2  
GetNextRequest, SNMP network com-  
mand A-2  
GetRequest, SNMP network command  
A-2  
GetResponse, SNMP network message  
A-3  
Management Configuration 8-1  
Management Interfaces D-4  
Menu Features for LEDs 3-1  
Menu Structure 3-5  
Grounding Instructions 2-3  
H
Message, network manager A-3  
Host 1 Trap IP Address 8-4  
Host 2 Trap IP Address 8-5  
Host 3 Trap IP Address 8-5  
N
network connectors B-1  
Index-2  
TDU 120e User Manual  
61202156L2-1  
 
Index  
network interface alarms C-1  
network interface errors 4-3  
Network Interface Loopbacks 7-3  
network interface, status messages C-3  
network performance reports 4-2  
Network Status LEDs 3-9  
Network Tests 7-2  
Port Status, status menu 4-4  
port utility 6-4  
Power Connection 2-2  
Power On, status network interface C-  
Power-Up Porcedure 2-11  
Power-Up Testing 2-8  
Network, wiring B-1  
No EXT Clock, alarm message C-2  
No Loopback 7-4  
No Loopback, deeeactivates loopback  
7-4  
No Passcode Desired 6-3  
No Unit ID Desired 6-4  
None, QRSS test pattern 7-6  
Nx/DBU (0.1) Menu Items 4-5, 7-9  
Nx/DBU Interface - Port 0.1-Nx56/64  
(V.35 Interface) D-2  
Nx/DBU Interface, alarm messages C-  
1
Nx/DBU Interface, status messages C-  
3
Q
QRSS TST DS0s 7-6  
R
Rear Panel Layout 2-5  
Red Alarm, DS-1 interface alarm mes-  
Red Alarm, network interface C-1  
Remote Loopback 7-4  
Remote Port, status menu 4-7  
Remote/Management menu 8-1  
Router, PBX, Video Conferencing Ap-  
plication 1-6  
Nx56/64 DTE (V.35), connectors B-5  
O
Option Module Architecture 1-5  
Option Slot Interface D-5  
P
passcode, about 6-3  
pattern generation 7-5  
Pattern Result, of active test 7-6  
payload on, local loopback 7-3  
Payload On, status network interface  
C-3  
Payload, network interface loopback 7-  
3
S
Sample Terminal Screen with TDU  
120e Menu 3-2  
select and activate a menu item 3-2  
Self-Test for TDU 120e unit at power-  
up 2-8  
Self-Test, status network interface C-3  
SES, test pattern result 7-7  
Set 6-3  
Ping IP Host 8-6  
PLL Alarm, alarm message C-2  
Poll Link Status Traps Sent 8-5  
Port Loop Up, status DS-1 PBX inter-  
face C-4  
Set User Passcode 2-9  
SetRequest, SNMP network command  
A-2  
Port Status LEDs 3-10  
61202156L2-1  
TDU 120e User Manual  
Index-3  
 
Index  
setting a passcode 6-3  
pattern generation 7-5  
Trap, SNMP network message A-3  
Shipping damages 2-1  
SNMP MIB Browser Configuration A-  
6
SNMP MIB Files A-7  
SNMP Read Community 8-4  
SNMP Read/Write Community 8-4  
SNMP Trap Community 8-4  
SNMP Trap Configuration A-5  
SNMP, basic components A-1  
software revision 6-4  
Unit 6-3  
unit ID, setting the 6-4  
Unit level tests, (self-test) 2-8  
Status Menu Tree 4-1  
status messages C-3  
SYNC, test patern result 7-7  
System Contact 8-5  
System Location 8-5  
System Name, for SNMP managed  
node ID 8-5  
View History, status menu 4-4  
X
XSO, network interface error 4-3  
T
Yellow Alarm, DS-1 interface alarm  
message C-2  
Yellow Alarm, network interface C-1  
T1 Line Rate D-1  
T1/FT1 Interface D-1  
TDU 120e Interfaces 2-6  
TDU 120e, features 1-3  
Telnet/Terminal Password 8-6  
Telnet/Terminal Timeout 8-6  
Test Jacks D-1  
Z
Zeros Alarm, alarm message C-2  
Index-4  
TDU 120e User Manual  
61202156L2-1  
 

3D Connexion Gas Grill 466 1513 01 User Manual
Acoustic Research Surge Protector ARO6 User Manual
AEG Power Supply 750 User Manual
Alpine CD Player CDM 7856R User Manual
Amana Dishwasher ADB 2 User Manual
Amana Washer W10150618A User Manual
American Audio Music Mixer M1224FX User Manual
Axis Communications TV Mount J Box Gang Box Plate User Manual
Bakers Pride Oven Oven GO 36 User Manual
Behringer Electronic Keyboard U CONTROL UMX61 User Manual