ADTRAN TSU LT User manual

TSU LT
User Manual
Part Number 1202060L2-1
Document Number 1202060L2-1
February 1999

901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
Phone: [phone]
© 1999 ADTRAN, Inc.
All rights reserved.
Printed in USA.

iii
ADTRAN Year 2000 (Y2K) Readiness Disclosure
ADTRAN has established a Year 2000 program to ensure that our products will
correctly function in the new millennium. ADTRAN warrants that all products
meet Y2K specifications regardless of model or revision.
Information about ADTRAN’s Y2K compliance program is available at the fol-
lowing locations:
ADTRAN Web Site www.adtran.com
Product Matrix www.adtran.com/y2kfax.html
Faxback Document
Line
[phone]
Y2K plans and product certifications are
listed in the matrix.
Y2K Project Line [phone]
E-mail [e-mail]

iv
FCC regulations require that the following information be pro-
vided to the customer in this manual.
1. This equipment complies with Part 68 of the FCC rules.
The required label is attached to the bottom of the chassis.
2. If your TSU LT causes harm to the telephone network, the
telephone company may discontinue your service tempo-
rarily. 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 com-
plaint with the FCC.
3. Your telephone company may make changes in its facili-
ties, equipment, operations, or procedures that could affect
the proper operation of your equipment. If they do, you
will be given advance notice so as to give you an opportu-
nity to maintain uninterrupted service.
4. If you experience trouble with the TSU LT equipment,
please contact ADTRAN at [phone] for repair/ war-
ranty information. The telephone company may ask you to
disconnect the equipment from the network until the prob-
lem has been corrected, or until you are sure the equipment
is not malfunctioning.
5. This unit contains no user-serviceable parts.
6. An FCC compliant telephone cord and modular plug is
provided with this equipment. This equipment is designed
to be connected to the telephone network or premises wir-
ing using a compatible modular jack which is Part 68 com-
pliant. See installation instructions for details.
7. The following information may be required when applying
to your local telephone company for leased line facilities.
Service Type REN/SOC FIC USOC
1.544 Mbps - SF 6.0F 04DU9-BN RJ48C
1.544 Mbps - SF and B8ZS 6.0F 04DU9-DN RJ48C
1.544 Mbps - ESF 6.0F 04DU9-1KN RJ48C
1.544 Mbps - ESF 6.0F 04DU9-1SN RJ48C

v
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 equip-
ment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accor-
dance with the instruction manual, may cause harmful interference to radio fre-
quencies. Operation of this equipment in a residential area is likely to cause
harmful interference, in which case the user will be required to correct the inter-
ference at his own expense.
Shielded cables must be used with this unit to ensure compliance with Class A
FCC limits.
Changes or modifications to this unit not expressly approved by
the party responsible for compliance could void the user’s author-
ity to operate the equipment.

vi
CANADIAN EQUIPMENT LIMITATIONS
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 method of connection. In some
cases, the company's inside wiring associated with a single line individual ser-
vice may be extended by means of a certified connector assembly (telephone
extension cord). The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier. Any repairs or alterations
made by the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equip-
ment.
Users should ensure for their own protection that the electrical ground connec-
tions of the power utility, telephone lines and internal metallic waterpipe sys-
tem, if present, are connected together. This precaution may be particularly
important in rural areas.
The Load Number (LN) assigned to each terminal device denotes the percent-
age of the total load to be connected to a telephone loop which is used by the
device, to prevent overloading. The termination on a loop may consist of any
combination of devices subject only to the equipment that the total of the LNs of
all devices does not exceed 100.
The ringer equivalence number (REN) assigned to each terminal adapter is
used to determine the total number of devices that may be connected to each
circuit. The sum of the RENs from all devices in the circuit should not exceed a
total of 5.0.
The Industry Canada Certification label identifies certified equip-
ment. This certification means that the equipment meets certain
telecommunications network protective, operational, and safety
requirements. The Department does not guarantee the equipment
will operate to the user's satisfaction.
Users should not attempt to make such connections themselves,
but should contact the appropriate electric inspection authority,
or an electrician, as appropriate.

vii
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
When using your telephone equipment, please follow these
basic safety precautions to reduce the risk of fire, electrical
shock, or personal injury:
1 Do not use this product near water, such as near a bath
tub, wash bowl, kitchen sink, laundry tub, in a wet base-
ment, or near a swimming pool.
2 Avoid using a telephone (other than a cordless-type) dur-
ing 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 vicin-
ity 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 spe-
cial disposal instructions.

viii
Warranty and Customer Service
ADTRAN will replace or repair this product within five years from the date of
shipment if the product does not meet its published specifications or if it fails
while in service. For detailed warranty, repair, and return information, see the
ADTRAN Equipment Warranty and Repair and Return Policy Procedure.
Return Material Authorization (RMA) is required prior to returning equipment
to ADTRAN.
For Service, RMA requests, or more information, contact one of the numbers
found at the inside back page of this manual.

61202060L2-1 TSU LT User Manual ix
Table of Contents
Chapter 1. Introduction .......................................................................................... 1-1
T1/FT1 Overview ..................................................................................................... 1-1
T1 Service Offerings........................................................................................... 1-1
Fractional T1........................................................................................................ 1-2
TSU LT Overview............................................................................................... 1-2
Functional Description .............................................................................. 1-2
TSU LT Rear Panel ............................................................................................. 1-4
TSU LT Features ................................................................................................. 1-5
TSU LT Interfaces............................................................................................... 1-5
Network Interface (NI) .............................................................................. 1-6
Nx56/64 Serial Interface ........................................................................... 1-6
Control Port Input ...................................................................................... 1-6
Chain Port Output ..................................................................................... 1-7
Software Management....................................................................................... 1-7
Front Panel .................................................................................................. 1-7
T-Watch Pro Management Software Program ....................................... 1-7
TSU LT Testing ................................................................................................... 1-8
Self-test ........................................................................................................ 1-8
Loopback Tests ........................................................................................... 1-8
DTE Interface Loopbacks ........................................................................ 1-10
Pattern Generation ........................................................................................... 1-11
Bridge/Router Application ............................................................................ 1-11
Chapter 2. Installation ............................................................................................ 2-1
Inspecting for Damages ........................................................................................... 2-1
Items Shipped by ADTRAN............................................................................. 2-1
Items Provided by Customer............................................................................ 2-1
Power Connection.............................................................................................. 2-2
Power Up Testing and Initialization ............................................................... 2-2
Self-test ........................................................................................................ 2-2
Chapter 3. Operation............................................................................................... 3-1
Operation ................................................................................................................... 3-1
General Menu Operation .................................................................................. 3-1

Table of Contents
xTSU LT User Manual 61202060L2-1
Menu Structure ................................................................................................... 3-2
Four Opening Menu Functions ................................................................ 3-3
STATUS ....................................................................................................... 3-3
CONFIG ....................................................................................................... 3-3
UTIL ............................................................................................................. 3-3
TEST ............................................................................................................. 3-4
Menu Features .................................................................................................... 3-5
Data Field .................................................................................................... 3-5
Display Field ............................................................................................... 3-5
Arrows ......................................................................................................... 3-5
Example Menu Operations ....................................................................... 3-5
Front Panel .......................................................................................................... 3-8
Chapter 4. Status Menu .......................................................................................... 4-1
STATUS ...................................................................................................................... 4-1
NI PERF RPTS.....................................................................................................4-2
CURR ERR/ALM ............................................................................................... 4-3
Alarms and Errors ...................................................................................... 4-4
ERR/ALM Hist ................................................................................................... 4-5
Chapter 5. Configuration Menu............................................................................ 5-1
CONFIG ..................................................................................................................... 5-1
Network (NI)....................................................................................................... 5-2
FORMAT .....................................................................................................5-2
CODE ........................................................................................................... 5-2
YEL ALRM .................................................................................................. 5-2
XMIT ALRM ............................................................................................... 5-3
CLOCK SOURCE ....................................................................................... 5-3
BIT STUFFING ............................................................................................ 5-5
SET LBO ....................................................................................................... 5-5
RX SENSITIVITY ........................................................................................ 5-5
Unit ....................................................................................................................... 5-6
CNTRL PORT ............................................................................................. 5-6
POSITION of TSU LT ................................................................................ 5-6
MODEM INIT ............................................................................................. 5-7
DATA RATE ............................................................................................... 5-7
ALARMS .....................................................................................................5-7
TRAPS ..........................................................................................................5-7
OUTPUT ...................................................................................................... 5-7
TEL NUM .................................................................................................... 5-8
Port ....................................................................................................................... 5-8
RATE 56/64 ................................................................................................. 5-8

Table of Contents
61202060L2-1 TSU LT User Manual xi
CHANNELS ................................................................................................ 5-8
DTE TX CLK ............................................................................................... 5-9
START CHAN ............................................................................................ 5-9
# OF CHAN ................................................................................................. 5-9
DATA ........................................................................................................... 5-9
CTS ............................................................................................................. 5-10
DCD ........................................................................................................... 5-10
DSR ............................................................................................................. 5-10
INBAND .................................................................................................... 5-10
Chapter 6. Utility Menu ......................................................................................... 6-1
UTIL ............................................................................................................................ 6-1
Time/Date........................................................................................................... 6-2
Software Rev ...................................................................................................... 6-2
Reinit Unit ........................................................................................................... 6-3
Address................................................................................................................ 6-3
Set Passcode ........................................................................................................ 6-3
Fact Restore ......................................................................................................... 6-3
Chapter 7. Test Menu.............................................................................................. 7-1
TEST ...........................................................................................................................7-1
Network Tests..................................................................................................... 7-2
LOCAL LOOPBCK .................................................................................... 7-2
REMOTE LOOPBCK ................................................................................. 7-2
TEST PATTERN ......................................................................................... 7-3
CLR ERRORS .............................................................................................. 7-4
INSERT 511 ERRORS ................................................................................ 7-4
Run Self-test ........................................................................................................ 7-4
Port Tests ............................................................................................................. 7-6
Chapter 8. Example Operations ............................................................................ 8-1
Testing Examples ...................................................................................................... 8-1
Far End Looped Back Test ................................................................................ 8-1
Network Interface Test ...................................................................................... 8-1
Appendix A. TSU LT Menu Tree ....................................................................... A-1
Appendix B. DTE Data Rate Chart ..................................................................... B-1
Appendix C. Pinouts............................................................................................. C-1
Wiring ....................................................................................................................... C-1
Network.............................................................................................................. C-1

Table of Contents
xii TSU LT User Manual 61202060L2-1
Control-In/Chain-In ......................................................................................... C-2
Chain-Out ........................................................................................................... C-3
Nx56K/64K DTE (V.35).................................................................................... C-4
Index ...................................................................................................................Index-1

61202060L2-1 TSU LT User Manual xiii
List of Figures
Figure 1-1. TSU LT Unit - Front View .................................................................... 1-3
Figure 1-2. TSU LT Rear Panel ................................................................................ 1-4
Figure 1-3. TSU LT Interfaces.................................................................................. 1-5
Figure 1-4. Network Loopback Tests ..................................................................... 1-9
Figure 1-5. DTE Interface Loopback .................................................................... 1-10
Figure 1-6. Simple Bridge Application on a T1 or FT1 Circuit..........................1-11
Figure 3-1. TSU LT Main Menus............................................................................. 3-1
Figure 3-2. TSU LT Main Menu Screen.................................................................. 3-2
Figure 3-3. Cursor on Menu Item........................................................................... 3-6
Figure 3-4. Submenu Fields..................................................................................... 3-6
Figure 3-5. Front Panel Layout ............................................................................... 3-8
Figure 4-1. Status Menu.......................................................................................... 4-1
Figure 4-2. Severely Errored Seconds Screen........................................................ 4-2
Figure 4-3. Loss of Signal (Current Errors/Alarms) Screens ............................. 4-3
Figure 4-4. Clear History Screen............................................................................. 4-5
Figure 5-1. Configuration Menu............................................................................. 5-1
Figure 5-2. Network Submenu ............................................................................... 5-2
Figure 5-3. Network Timed Clock Source ............................................................. 5-4
Figure 5-4. DTE Clock Source ................................................................................. 5-4
Figure 5-5. Internal Clock Source ........................................................................... 5-5
Figure 5-6. Configuration Submenu ...................................................................... 5-6
Figure 5-7. Inband Remote Configuration ...........................................................5-11
Figure 6-1. Utility Menu .......................................................................................... 6-1
Figure 6-2. Time/Date Screen ................................................................................. 6-2
Figure 6-3. Address Screen ...................................................................................... 6-3
Figure 7-1. Test Menu............................................................................................... 7-1
Figure 7-2. Local Loopback Screen......................................................................... 7-2
Figure 7-3. Clear Errors Screen ............................................................................... 7-4

List of Figures
xiv TSU LT User Manual 61202060L2-1
Figure 7-4. Self Test Results Screen......................................................................... 7-5
Figure 7-5. Loopback Setting Screen ...................................................................... 7-6
Figure 8-1. Main Menu with TEST Selected ......................................................... 8-2
Figure 8-2. Test Menu with NETWORK TESTS Selected.................................... 8-2
Figure 8-3. Local Loopback Test Menu .................................................................. 8-3
Figure 8-4. Remote Loopback Test Menu .............................................................. 8-3
Figure 8-5. Test Pattern Screen ................................................................................ 8-4
Figure 8-6. Clear Errors Screen ............................................................................... 8-5
Figure A-1. TSU LT Menu Tree (Status and Config)........................................... A-1
Figure A-2. TSU LT Menu Tree (Util and Test) .................................................... A-2

61202060L2-1 TSU LT User Manual xv
List of Tables
Table 5-1. Normal Mode Operation....................................................................5-10
Table 6-1. Editing the Time/Date ..........................................................................6-2
Table B-1. DTE Data Rate vs. DS0s ........................................................................B-1
Table C-1. Network Pin Assignments .................................................................. C-1
Table C-2. Control-In/Chain-In Pin Assignments ............................................. C-2
Table C-3. Chain-Out Pin Assignments ............................................................... C-3
Table C-4. Primary V.35 Pin Assignment ............................................................ C-4

List of Tables
xvi TSU LT User Manual 61202060L2-1

1202060L2-1 TSU LT User Manual 1-1
Chapter 1 Introduction
T1/FT1 OVERVIEW
T1 digital communication links have been used by the
telephone companies (telcos) for voice transmission since the
early sixties. The D4 channel bank is an example of a T1
digital carrier system that was introduced in the mid-
seventies and is still widely used by the telcos.
Communication demands of businesses continued to grow to
the point that the telcos began offering T1 service directly to
the public. D4 channel banks began to be used for T1 in
corporate network topographies for voice. The technological
advances in computer development also created a demand
for T1 data communication which now is a large part of the
T1 traffic.
T1 Service Offerings
T1 is a digital service that is delivered to the user over two
pairs of wires from the service provider. The signal operates
at 1.544 mega bits per second (Mbps) and is usually extended
by repeaters that are installed about every mile after the first
6000 feet. The T1 signal is divided into 24 time slots or digital
signal level zeros (DS0s) which operate at 64 kilo bits per
seconds (kbps). Each time slot is occupied by digitized voice
or by data.

Chapter 1. Introduction
1-2 TSU LT User Manual 1202060L2-1
The T1 signal originally used a type of framing known as D4
Superframe which identifies how the T1 is multiplexed.
Extended Superframe (ESF) is an enhancement of that
framing format. ESF provides a non-disruptive means of full
time monitoring on the digital facility. It was originally used
by the service provider to monitor the performance of their
service offering. Since the introduction of ESF, equipment
that is installed in private networks can also provide the
same performance information to the user.
Fractional T1
Fractional T1 (FT1) allows the buyer to purchase less than a
full T1 circuit between two points. Most carriers offer
fractional T1 in increments of 56 or 64 kbps. Connection is
made to the same network elements. The network allows
multiple users to share the same interoffice T1 bandwidth.
FT1 remains almost exclusively an inter-exchange carrier
(IXC) service. Local exchange carriers (LECs) typically do
not offer FT1, so the user’s proximity to the IXC’s point-of-
presence (POP) is key in the savings that fractional T1 offers.
FT1 local access is available in two forms:
•56 kbps - In 56 kbps the required number of digital data
service (DDS) lines is extended from the IXC POP and
the bandwidth is combined at the office on an outbound
T1 circuit. The user pays for the individual 56K lines and
the amount of the interoffice T1 utilized
•Full T1 line - In T1 access, the user pays for a full T1 to
the IXC POP and then only for the bandwidth utilized.

Chapter 1. Introduction
1202060L2-1 TSU LT User Manual 1-3
TSU LT Overview
This section provides a functional description of the TSU LT,
describes its features, and illustrates its four interfaces.
Functional Description
The ADTRAN TSU LT is one of several T1 multiplexers that
offer complete flexibility for connection of various data
sources to T1 or FT1 facilities. This family of TSU
multiplexers includes the following:
•TSU and TSU LT - T1 CSU/DSUs with a single Nx56K/
64K serial port.
•TSU 100 - Same as the TSU with the added feature of a
slot in the rear panel to house an option module. Each
module offers up to four additional data ports.
•TSU 600 - Same as the TSU with the added feature of six
slots in the rear panel to house up to six option modules.
Each module offers up to four additional data ports for a
total of 24 possible data ports.
Figure 1-1. TSU LT Unit - Front View
The TSU LT serves as the link between user data sources such
as local area network (LAN) bridges and routers, computers,
CAD systems, and teleconferencing equipment. The amount
of bandwidth allocated to the port is custom programmable.
The data terminal equipment (DTE) data can occupy
contiguous or alternate channels in the T1 stream, and the
channels may start at any position.
PWR TEST
ALM
ERR
TD CS
RS
RD
CANCEL
ENTER
TSU LT

Chapter 1. Introduction
1-4 TSU LT User Manual 1202060L2-1
TSU LT Rear Panel
Figure 1-2. TSU LT Rear Panel
Number Identification for TSU LT Rear Panel
No. Item Function
1 Network T1-FT1 network interface
2 In Bantam test jack
3Out Bantamtestjack
4 MON (Monitor) Bantam test jack
5 Chain-In Interface of chain-in
6 Chain-Out Connects to chain-in of another TSU LT
7 V.35 Nx56/64 DTE port
8 Power Switch Used to turn power on or off
9 Power Cord Captive 3-prong power cord
NETWORK IN OUT MON
220VAC/60HZ
.075A
CHAIN IN CHAIN OUT
TEST JACKS CONTROL
V.35 Nx56/64
ONOFF
1 2 3 4 5 6 7 8 9