ADTRAN Network Router T1 FT1 User Manual
TSU  
T1-FT1 Data/Channel Service Unit  
Part Number 1200060L1  
User Manual  
61200060L1-1B  
September 1999  
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Notes provide additional useful information.  
Cautions signify information that could prevent service interrup-  
tion.  
Warnings provide information that could prevent damage to the  
equipment or endangerment to human life.  
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FCC regulations require that the following information be provided to the  
customer in this manual.  
1. This equipment complies with Part 68 of the FCC rules. The required  
label is affixed to the bottom of the chassis.  
2. If your telephone equipment causes harm to the telephone network, the  
Telephone Company may discontinue your service temporarily. If pos-  
sible, they will notify you in advance. But if advance notice isn’t practi-  
cal, you will be notified as soon as possible. You will be advised of your  
right to file a complaint with the FCC.  
3. Your telephone company may make changes in its facilities, equipment,  
operations, or procedures that could affect the proper operation of your  
equipment. If they do, you will be given advance notice so as to give  
you an opportunity maintain uninterrupted service.  
4. If you experience trouble with this equipment, please contact Adtran at  
888-4Adtran for repair/warranty information. The telephone company  
may ask you to disconnect this equipment from the network until the  
problem has been corrected, or until you are sure the equipment is not  
malfunctioning.  
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 the tele-  
phone network or premises wiring using a compatible modular jack  
which is Part 68 compliant. See installation instructions for details.  
7. The following information may be required when applying to your  
local telephone company for leased-line facilities.  
Service  
REN/SOC FIC  
USOC  
RJ48C  
1.544 Mbps - SF  
1.544 Mbps - SF and B8ZS  
1.544 Mbps - ESF  
6.0/F  
6.0/F  
6.0/F  
04DU9-BN  
04DU9-DN RJ48C  
04DU9-1KN RJ48C  
04DU9-1SN RJ48C  
1.544 Mbps - ESF and B8ZS 6.0/F  
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Federal Communications Commission Radio  
Frequency Interference Statement  
This equipment has been tested and found to comply with the limits for a Class  
A digital device, pursuant to Part 15 of the FCC Rules. These 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.  
Change 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.  
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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 bath tub, 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 electri-  
cal 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 INSTRUCTIONS  
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WARRANTY AND CUSTOMER SERVICE  
ADTRAN will replace or repair this product within five years from the date of  
shipment if the product does not meet its published specifications or if it fails  
while in service. For detailed warranty, repair, and return information see the  
ADTRAN Equipment Warranty and Repair and Return Policy Procedure on the  
inside back page of this manual.  
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 on the inside back page of this manual.  
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Table of Contents  
Chapter 1. Introduction .......................................................................................... 1-1  
T1/FT1 Overview ..................................................................................................... 1-1  
T1 Service Offerings........................................................................................... 1-1  
Fractional T1........................................................................................................ 1-2  
TSU Overview ........................................................................................................... 1-3  
Functional Description ...................................................................................... 1-3  
Features ....................................................................................................... 1-5  
Interfaces ..................................................................................................... 1-5  
Network Interface .............................................................................................. 1-6  
NI .................................................................................................................. 1-6  
Nx56/64 Serial Interface ........................................................................... 1-6  
Control Port Input ...................................................................................... 1-6  
Chain Port Output ..................................................................................... 1-6  
Three Methods of Control................................................................................. 1-7  
Front Panel .................................................................................................. 1-7  
Adtran PC Program ................................................................................... 1-7  
SNMP ........................................................................................................... 1-7  
TSU Clock Sources ............................................................................................. 1-8  
Network Timed .......................................................................................... 1-8  
DTE Timed .................................................................................................. 1-9  
Internal Timing ......................................................................................... 1-10  
TSU Testing....................................................................................................... 1-11  
Self Tests .................................................................................................... 1-11  
Loopback Tests ......................................................................................... 1-11  
Network Loopbacks ......................................................................... 1-12  
DTE Interface Loopbacks ................................................................. 1-13  
Pattern Generation ................................................................................... 1-13  
All Ones .............................................................................................. 1-13  
3 in 24 .................................................................................................. 1-13  
511 ....................................................................................................... 1-14  
1 in 8 .................................................................................................... 1-14  
Application........................................................................................................ 1-14  
Chapter 2. Installation ............................................................................................ 2-1  
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Table of Contents  
Unpack, Inspect, Power Connection ......................................................................2-1  
ADTRAN Shipments Include...........................................................................2-1  
Customer Provides.............................................................................................2-1  
Power Connection ..............................................................................................2-1  
Wiring .........................................................................................................................2-2  
Network...............................................................................................................2-2  
Control In/Chain In ...................................................................................2-3  
Chain Out ....................................................................................................2-4  
Nx56k/64k DTE (V.35) ..............................................................................2-5  
Power Up Testing and Initialization ......................................................................2-6  
Self Test................................................................................................................2-6  
Chapter 3. Operation...............................................................................................3-1  
Methods of operation ...............................................................................................3-1  
Front Panel Operation .......................................................................................3-2  
General Menu Operation ..................................................................................3-3  
Data Field ....................................................................................................3-3  
Display Field ...............................................................................................3-3  
Arrows .........................................................................................................3-3  
Example Menu Operation .........................................................................3-3  
Setting the Data Field ................................................................................3-4  
Viewing Display Only Data Fields ..........................................................3-5  
To Exit Any Menu Field Operation or Display ......................................3-5  
Menu Structure ...................................................................................................3-6  
The Four Opening Menu Functions ................................................................3-7  
STATUS .......................................................................................................3-7  
NI PERF RPTS .....................................................................................3-7  
CURR ERR/ALM ................................................................................3-7  
ERR/ALM HIST ..................................................................................3-7  
CONFIG .......................................................................................................3-7  
NETWORK (NI) ..................................................................................3-7  
UNIT .....................................................................................................3-7  
PORT .....................................................................................................3-7  
UTIL .............................................................................................................3-8  
TIME/DATE ........................................................................................3-8  
SOFTWARE VERSION ......................................................................3-8  
REINIT UNIT .......................................................................................3-8  
ADDRESS .............................................................................................3-8  
FACT RESTORE ..................................................................................3-8  
TEST .............................................................................................................3-8  
NETWORK TESTS ..............................................................................3-8  
RUN SELF TEST ..................................................................................3-8  
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Table of Contents  
PORT TESTS ........................................................................................ 3-8  
Menu Operation ....................................................................................................... 3-9  
Status Menu ........................................................................................................ 3-9  
NI PERF RPTS, Submenu of 1)Status .................................................... 3-10  
CURR ERR/ALM Submenu of 1)Status ............................................... 3-12  
ERR/ALM Hist Submenu of 1)Status ...................................................3-13  
Configuration.................................................................................................... 3-14  
1) NETWORK (NI) SUBMENU OF 2) CONFIG ..................................3-15  
2) UNIT, SUBMENU OF 2) CONFIG .................................................... 3-17  
1) CNTRL PORT ................................................................................ 3-17  
2) ALARMS ........................................................................................ 3-18  
3) PORT, SUBMENU OF CONFIG ........................................................3-19  
UTIL ................................................................................................................... 3-21  
1)Time/Date, Submenu of 3)Util ........................................................... 3-21  
2)Software Rev, Submenu of 3)Util ....................................................... 3-23  
3)Reinit Unit, Submenu of 3)Util ........................................................... 3-23  
4)Address,Submenu of 3)Util ................................................................. 3-24  
5)Fact Restore, Submenu of 3)Util ......................................................... 3-24  
Test ..................................................................................................................... 3-25  
1)Network Tests, Submenu of 4)Test .................................................... 3-26  
2)Run Selftest, Submenu of 4)Test ......................................................... 3-28  
3)Port Tests submenu of 4)Test ..............................................................3-29  
Chapter 4. Testing Example................................................................................... 4-1  
Far End Looped Back Test ................................................................................ 4-1  
Network Interface Test .............................................................................. 4-1  
Index ................................................................................................................. Index-1  
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Table of Contents  
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List of Figures  
Figure 1-1. TSU .......................................................................................................1-3  
Figure 1-2. TSU Rear Panel ..................................................................................1-4  
Figure 1-3. TSU Interfaces .....................................................................................1-5  
Figure 1-4. Network Timed Clock Source ...........................................................1-8  
Figure 1-5. DTE Clock Source ...............................................................................1-9  
Figure 1-6. Internal Clock Source .......................................................................1-10  
Figure 1-7. Network Loopback Tests .................................................................1-12  
Figure 1-8. DTE Interface Loopback ..................................................................1-13  
Figure 1-9. Simple Bridge Application on a T1 or FT1 Circuit ......................1-14  
Figure 3-1. Front Panel Layout .............................................................................3-2  
Figure 3-2. The Four Opening Menus ................................................................3-6  
Figure 3-3. Complete Status Menu .......................................................................3-9  
Figure 3-4. Complete Configuration Menu ......................................................3-14  
Figure 3-5. Complete Utility Menu ....................................................................3-21  
Figure 3-6. Complete Test Menu ........................................................................3-25  
Figure A-1. TSU Complete Menu Diagram ........................................................A-1  
Figure B-1. DTE DATA RATE CHART .............................................................. B-1  
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List of Figures  
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List of Tables  
Table 2-1. Network Pin Connection ...................................................................2-2  
Table 2-2. Control In/Chain In Pin Connection ...............................................2-3  
Table 2-3. Chain Out Pin Connection ................................................................2-4  
Table 2-4. Primary V.35 Pin Connection ...........................................................2-5  
Table 3-1. Normal Mode of Operation ............................................................3-20  
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List of Tables  
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Chapter 1  
Introduction  
T1/FT1 OVERVIEW  
T1 digital communication links have been used by the  
transmitting companies (Telcos) for the transmitting of voice  
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 created a demand also  
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 1.544Mbps 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 which operate at 64 kbps  
(DS0s). Each time slot is occupied by digitized voice or by  
data.  
The T1 signal originally used a type of framing known as D4  
Superframe which identifies how the T1 is multiplexed. An  
enhancement of that framing format is available now called  
Extended Superframe (ESF). 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  
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Chapter 1. Introduction  
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 lets the buyer 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.  
Fractional T1 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.  
Fractional T1 local access is available in two forms, 56kbps or  
a full T1 line. In 56 kbps the required number of 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. In T1 access, the user pays for a full T1 to the IXC  
POP and then only for the bandwidth utilized.  
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Chapter 1. Introduction  
TSU OVERVIEW  
TSU  
EN  
TE  
R
SC  
RO  
LL  
CA  
NC  
EL  
Figure 1-1. TSU  
Functional Description  
The ADTRAN TSU is one of several T1 multiplexers that  
offers complete flexibility for connection of various data  
sources to T1 or FT1 facilities. This family of TSU  
multiplexers includes the following.  
1. TSU - a T1 CSU/DSU with a single NX56k/64k serial  
port. See Figure 1-1, above and Figure 1-2 on page 1- 4.  
2. 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.  
3. 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.  
The TSU serves as the link between user data sources such as  
LAN bridges and routers, computers, CAD systems and  
teleconferencing equipment. The amount of bandwidth  
allocated to the port is custom programmable. The DTE data  
can occupy contiguous or alternate channels in the T1 stream,  
and the channels may start at any position.  
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Chapter 1. Introduction  
1
2
3
4
5
6
7
8
9
ON  
OFF  
TEST JACKS  
CONTROL  
115VZ  
.15A  
IN  
OUT MON  
CHAIN IN CHAIN OUT  
NETWORK  
V.35 NX56/64  
Item  
Function  
1. Network  
Test Jacks  
2. IN  
T1-FT1 Network Interface  
Bantam Test Jack  
Bantam Test Jack  
Bantam Test Jack  
3. OUT  
4. MON (Monitor)  
Control  
5. Chain In  
6.Chain Out  
7. V.35 Nx56/64  
8. Power Switch  
9. Power Cord  
Interface of Chain In  
Connects to Chain In of another TSU  
DTE Port  
Used to turn power On or OFF  
Captive 3 Prong Power cord  
Figure 1-2. TSU Rear Panel  
1-4  
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Chapter 1. Introduction  
Features  
•
•
A DS1 interface and an Nx56/64 DTE serial interface  
port.  
Easy configuration capabilities using simplistic menus  
displayed in a Liquid Crystal Display (LCD) window  
operated by a front panel keypad.  
•
Timing is selectable from the network, from the Nx56/64  
DTE port, or internally.  
•
•
All ones, 3:24, 511 and 1:8 Test Patterns.  
Extensive self test and monitoring provides assurance of  
proper operation.  
•
Flexible channel allocation (any starting channel and  
alternate or contiguous).  
Interfaces  
The TSU is equipped with four interfaces. See Figure 1-3.  
•
•
•
•
Network DSI interface per AT&T 621411  
Nx56/64 serial V.35 high speed interface  
Control input (RS232) / Chain port input  
Chain port output  
PC or Modem  
Control  
Input  
Chain  
Output  
Chain  
Input  
Chain  
Output  
TSU  
TSU  
NI  
NI  
Nx56/64  
Nx56/64  
Network  
Figure 1-3. TSU Interfaces  
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Chapter 1. Introduction  
Network Interface  
The Network Interface (NI) port complies with the applicable  
ANSI and AT&T standards.  
NI  
•
•
•
•
•
•
AMI or B8ZS coding  
Automatic or manual line build out  
D4 or ESF framing  
Network performance monitoring and reporting  
Test loopbacks by local and remote  
Extensive self test  
Nx56/64 Serial Interface  
•
•
•
•
•
•
Data rates: N*56k or N*64k, where N=1 to 24 (DS0s)  
Inverted data (Inverted HDLC)  
A V.35 interface  
Standard V.35 connectors  
Test loopbacks with 511 pattern generation and check  
Extensive self test  
Control Port Input  
•
EIA-232 input from a PC or a modem for control of the  
TSU  
•
•
•
Chain input from another TSU  
Up to 9600 baud operation  
Acts as input for PC proxy agent control or as input for a  
chained connection  
Chain Port Output  
•
•
•
EIA-232 output to chain control to other TSUs  
Up to 9600 baud operation  
Automatic setup; no user input required  
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Chapter 1. Introduction  
Three Methods of Control  
Front Panel  
The front panel provides complete and easy control of all  
items that can be configured through menu guided options.  
The front panel LCD also displays the status of operation and  
performance reports for the unit. A complete discussion of  
the operation of the front panel and all the menu options is  
found in Chapter 3, Operation.  
Adtran PC Program  
T-WATCH is the ADTRAN PC control program. It provides  
complete control over the configuration of the TSU using a  
graphic interface. The T-WATCH program displays the same  
status and performance data as the front panel LCD. This  
data is displayed in the form of tables and graphs.  
The T-WATCH program has the following capabilities.  
1. Interfaces with a modem which permits dialing into a  
remote TSU location to configure the unit or read the  
unit’s status or performance.  
2. The performance data read from the units can be  
exported in a file which is compatible with common  
spread sheet programs.  
SNMP  
The ADTRAN TSU will support the Simple Network  
Management Protocol (SNMP) through an ADTRAN proxy  
agent in mid 1994. The proxy agent runs on a PC and can  
interface to the TSU directly or via a modem, in the same  
manner as the T-WATCH PC program.  
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Chapter 1. Introduction  
TSU Clock Sources  
The TSU is operable from various clock sources permitting it  
to perform properly in many different applications. The  
network interface clocking options are set by using the  
Network (NI) Configuration menu options. There are three  
clock source options available.  
•
•
•
Network  
DTE Timed  
Internal Timing  
The clocking option selected always designates the clock source for  
transmission. Clocking necessary for receiving data will always be  
recovered from incoming data.  
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 looped timed as the transmission clock is derived  
from the received clock. See Figure 1-4.  
OSC  
T1 XMIT  
Network  
Interface  
(DSU)  
T1 Receive  
NX56K/64K  
DTE CLOCK  
DTE  
Figure 1-4. Network Timed Clock Source  
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DTE Timed  
The DTE is the source of timing. The TSU uses the incoming  
DTE clock to determine the transmission timing. This is  
typically used in applications where it is necessary to have  
the DTE as the Primary Clock Source, (such as limited  
distance line drivers). See Figure 1-5.  
OSC  
T1 XMIT  
Network  
Interface  
(DSU)  
T1 Receive  
NX56K/64K  
DTE CLOCK  
DTE  
Figure 1-5. DTE Clock Source  
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Internal Timing  
The TSU is the source of timing. The TSU 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 1-6.  
OSC  
T1 XMIT  
Network  
Interface  
(DSU)  
T1 Receive  
NX56K/64K  
DTE CLOCK  
DTE  
Figure 1-6. Internal Clock Source  
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Chapter 1. Introduction  
TSU Testing  
Currently the TSU offers three forms of testing.  
•
•
•
Self Test  
Loopback Tests  
Pattern generation and check  
Self Tests  
The self test checks the integrity of the internal operation of  
the electronic components by performing memory tests and  
by sending and verifying data test patterns through all  
internal interfaces. Although actual user data cannot be  
passed during these tests, the self test can be run with the  
network and DTE interfaces in place and will not disturb any  
external interface.  
The self test automatically executes upon power up. It can  
also be commanded from a front panel menu or from the  
control port.  
In addition to the specified self tests, background tests are  
also run on various parts of the internal electronics. These  
will run during normal operation to confirm continued  
correct functioning. The background tests include; 1)  
monitoring the phase locked loop for lock, 2) the standard  
background network performance monitoring, as required  
by ANSI T1.403 andAT&T 54016 for which the results are  
stored.  
Loopback Tests  
A number of different loopbacks can be invoked locally from  
the front panel, by T-WATCH commands or remotely by  
using special inband codes (AT&T D4 network loop up and  
loop down codes; V.54 loop up/loop down codes for the  
Nx56k/64k serial interface). Additionally the loopbacks can  
be remotely controlled by out-of-band commands via the T1  
ESF FDL, or from T-WATCH via a modem connection.  
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Network Loopbacks  
There are two types of network loopbacks; see Figure 1-7.  
•
Line Loopback: loops all of the received data back  
toward the network. The transmitted data is the identical  
line code that was received, including any bipolar  
violations or framing errors.  
•
Payload Loopback: similar to Line loopback, except that  
the framing is extracted from the received data and then  
regenerated for the transmitted data.  
TSU  
V.35  
NI CSU  
DS1  
Interface  
Payload Loopback  
Line Loopback  
Figure 1-7. Network Loopback Tests  
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DTE Interface Loopbacks  
The Nx56k/64k serial interface offers a DTE loopback. See  
Figure 1-8.  
DTE Loopback: loops all data from the DTE back towards  
the DTE. This loopback may be initiated by the DTE asserting  
the Local Loopback (LL) input on the connector or by using  
front panel or T-WATCH commands. The DTE (or external  
test equipment) must provide any test pattern in order to  
check the DTE interface.  
DTE  
Loopback  
TSU  
Nx56/64  
Interface  
Nx56/64 to  
network control  
circuit  
Network Interface  
T1  
(NI)  
to DTE  
Figure 1-8. DTE Interface Loopback  
Pattern Generation  
The TSU offers four available test patterns, All Ones, 3:24,  
and 511 and 1:8.  
All Ones  
Need definition  
3 in 24  
The 3:24 is a stress pattern which places the maximum  
number of 0s in the transmitted data. This is always done  
over all DS0s. This pattern is used in conjunction with  
external test equipment to determine if the T1 line is  
preforming acceptably under a stress condition.  
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Chapter 1. Introduction  
511  
The 511 pattern is generated and checked by the Nx56k/64k  
serial interface. It only appears in the DS0s assigned to the  
Nx56k/64k port. When used in conjunction with the payload  
loopback at the far end as previously described, an end to  
end integrity check can be made on the DTE ports.  
1 in 8  
The 1:8 pattern is used similarly to the 3:24. Each channel of  
the T1 has only one bit set.  
Application  
Using the V.35 DTE interface, a bridge or router can be  
interfaced to the network. The bandwidth used is  
programmable at Nx56 or Nx64 data rates for T1 or FT1  
service. The bandwidth can be selected as contiguous or  
alternate. See Figure 1-9.  
Bridge Router  
NX56/64  
TSU  
TSU  
NX56/64  
V.35  
Bridge Router  
V.35  
(Public T1)  
Figure 1-9. Simple Bridge Application on a T1 or FT1 Circuit  
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Chapter 2  
Installation  
UNPACK, INSPECT, POWER CONNECTION  
Carefully inspect the TSU for any shipping damages. If  
damage is suspected, file a claim immediately with the  
carrier and then contact ADTRAN Customer and Product  
Service. If possible, keep the original shipping container for  
use in shipping the TSU back for repair or for verification of  
damage during shipment.  
ADTRAN Shipments Include  
•
•
The TSU unit  
Line interface cable: an 8-position/modular to 8-  
position modular  
•
The TSU User Manual  
Customer Provides  
•
•
DTE cable(s)  
Cable for Supervisory Port, if used  
Power Connection  
Each TSU unit is provided with a captive eight-foot power  
cord, terminated by a three-prong plug which connects to a  
grounded power receptacle.  
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Chapter 2. Installation  
Power to the TSU must be from a 115 VAC, 60Hz that is grounded.  
WIRING  
Network  
On the rear panel the TSU has an eight-position modular jack  
labeled NETWORK. This connector is used for connecting to  
the network. See Table 2-1 for the pinout for the Network  
connector.  
Connector Type - (USOC) RJ48C  
pn - AMP# 555164-2  
Table 2-1. Network Pin Connection  
Network Pin Connection  
PIN  
NAME  
R1 RXDATA-RING  
T1 RXDATA-TIP  
UNUSED  
DESCRIPTION  
1
2
3
4
5
Receive data from the Network  
R TXDATA-RING  
T TXDATA-TIP  
Send data towards the Network  
6, 7, 8 UNUSED  
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Chapter 2. Installation  
Control In/Chain In  
Used as an EIA 232 port for connection to a computer or  
modem (Chain In); or another TSU (Chain Out).  
See Table 2-2.  
Connector Type - RJ48  
pn - AMP# 555164-2  
Table 2-2. Control In/Chain In Pin Connection  
CONTROL PIN CONNECTION  
NAME DESCRIPTION  
GND  
PIN  
1
Ground-Connected to Unit Chassis  
Data Received by the TSU  
Data Transmitted by the TSU  
Ring Indicate from Modem  
2
UNUSED  
RXDATA  
UNUSED  
TXDATA  
UNUSED  
RI  
3
4
5
6
7
8
UNUSED  
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Chapter 2. Installation  
Chain Out  
Used to connect to another TSU's Chain In connector. See  
Table 2-3.  
Connector Type - RJ48  
pn - AMP# 555164-2  
Table 2-3. Chain Out Pin Connection  
CHAIN OUT PIN CONNECTION  
PIN  
NAME  
GND  
DESCRIPTION  
1
Ground-Connected to Unit Chassis  
Connect to GND of next unit (Pin 1).  
2
3
UNUSED  
TXDATA  
Data Transmitted to chained units  
by the TSU. Connect to RX DATA  
of the next unit (Chain In Pin 3).  
4
5
UNUSED  
RXDATA  
Data Received from the chained units  
by the TSU. Connect to TX DATA  
of the next unit (Chain In Pin 3).  
6, 7, 8  
UNUSED  
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Chapter 2. Installation  
Nx56k/64k DTE (V.35)  
Connector Type = V.35  
pn = AMP# 92-4883-3-1  
See Table 2-4.  
Table 2-4. Primary V.35 Pin Connection  
Nx 56k/64/ DTE PIN CONNECTION  
PIN  
A
CCITT  
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  
Data Terminal Ready (DTR) from DTE  
Ring Indicator (RI)  
D
E
F
H
J
-
L
-
Local Loopback (LL)  
N
-
Remote Loopback (RL)  
R
104  
104  
115  
115  
103  
103  
114  
114  
113  
113  
-
Received Data (RD-A) to DTE  
Received Data (RD-B) to DTE  
RX Clock (RC-A) to DTE  
T
V
X
RX Clock (RC-B) to DTE  
P
Transmitted Data (TD-A) from DTE  
Transmitted Data (TD-B) from DTE  
TX Clock (TC-A)  
S
Y
AA  
U
TX Clock (TC-B)  
External TX Clock (ETC-A) from DTE  
External TX Clock (ETC-B) from DTE  
Test Mode (TM) to DTE  
W
NN&K  
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Chapter 2. Installation  
POWER UP TESTING AND INITIALIZATION  
When shipped from the factory, the TSU is uninitialized and  
set to factory default conditions. At the first application of  
power, the unit will automatically execute self tests followed  
by an initialization sequence which sets up the unit.  
Self Test  
Upon a power-up or commanded self tests the LCD displays  
ADTRAN TSU INITIALIZING and the LEDs illuminate  
sequentially. When the self test is completed with no failures  
detected, the LCD will momentarily display ALL TESTS  
PASSED. If a failure is detected it is displayed in the LCD  
window. The automatic self test procedure consists of the  
following tests.  
1. Board level tests.  
•
•
RAM tests; EPROM checksum  
On board data path. Sending a known test pattern  
through an on board loop.  
2. Unit level tests.  
•
•
Front Panel LED verification  
Phase Lock Loop verify  
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Chapter 3  
Operation  
METHODS OF OPERATION  
The TSU can be configured and controlled by two different  
methods:  
•
•
Local Front Panel  
From Adtran’s PC Control program, T-WATCH  
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Front Panel Operation  
1
2
3
4
10  
12  
TSU  
PWR ERR ALM LB  
ENTER  
SCROLL  
TD  
RD  
RS  
CS  
CANCEL  
5
6
7
8
9
11  
13  
Item  
Function  
Displays:  
1 PWR:  
2 ERR:  
LED "ON" when power is received by TSU.  
LED "ON" when errored events have happened in the  
last second.  
3 ALM  
4 LB  
5 TD  
6 RD  
7 RS  
8 CS  
LED "ON" when an alarm condition exists.  
LED "ON" when unit is in loopback.  
LED "ON" when DTE data is being transmitted.  
LED "ON" when DTE data is being received.  
LED "ON" when RTS active from DTE.  
LED "ON" when TSU has CTS active toward DTE.  
9 LCD WINDOW  
A 2X16 Liquid Crystal Display (LCD) window that dis-  
plays menu items used in configuration and displays  
information useful in monitoring the unit.  
Operation Keys:  
10 UP/DOWN Scroll  
Keys  
Scroll keys used to traverse up/down menu trees, in-  
crease/decrease numeric values and scroll through  
selections.  
11 ENTER  
Used to choose paths and make selections.  
Used to exit selections or menu tree branches.  
12 CANCEL  
Figure 3-1. Front Panel Layout  
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Chapter 3. Operation  
General Menu Operation  
The TSU uses a multilevel menu structure containing both  
menu items and data fields. All menu operations and data  
are displayed in the LCD window. The menu items are  
numbered and can be viewed by using the up and down  
scroll keys.  
Data Field  
A menu item followed by a colon (:) identifies an editable  
data field.  
Display Field  
Arrows  
A menu field followed by alarm or error information.  
Menus that display small up or down arrows in the lower  
right corner indicate there are more menu items than are  
viewable on a two-line LCD. The additional menu items are  
accessed with the up or down scroll keys. (Undisplayed  
menu items are also available by using the appropriate menu  
number.)  
Example Menu Operation  
1. To select a menu item, use the up and down scroll keys to  
place the cursor on the desired menu item, for example,  
2) CONFIG.  
1 ) S T A T U S  
2 ) C O N F I G  
3 ) U T I L  
4 ) T E S T  
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Chapter 3. Operation  
2. With the cursor on the number 2, press the ENTER key.  
The unit responds by displaying the first two available  
submenu fields. The cursor is on the first field. If there are  
more than two menu fields, a down scroll key is visible on  
the lower right corner.  
1 ) N E T W O R K ( N I )  
2 ) U N I T  
3. To select the desired submenu item, use the up and down  
scroll keys to place the cursor on the desired menu item,  
for example, 1) NETWORK (NI).  
The unit responds by displaying the first two available data  
field items. The cursor is on the number of the first item.  
When there are more than two data field items for the  
selected submenu, a down scroll key is visible on the lower  
right corner.  
1 ) F O R M A T :  
2 ) C O D E :  
E S F  
B 8 Z S  
Setting the Data Field  
Data fields that can be edited are preceded by a colon (:).  
1. Press the ENTER key while the cursor is located on the  
submenu item number. The cursor moves to the data  
field, (to the right of the submenu item name).  
1 ) F O R M A T :  
2 ) C O D E :  
E S F  
B 8 Z S  
2. Use the up and down scroll keys to scan the available  
value settings. They display in the data field position one  
at a time.  
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Chapter 3. Operation  
3. When the desired value is in the data field position, press  
ENTER to set the value.  
The unit is set for the value shown in the data field and the  
cursor moves back to the submenu item position indicating  
the operation is complete.  
4. Select another submenu field or use the CANCEL key to  
return to the submenu.  
CANCEL is available any time during the operation. If used  
prior to pressing ENTER after making a data change, the  
original data value is restored and the cursor returns to the  
submenu field.  
Viewing Display Only Data Fields  
An example of a Display Only data field is found by selecting  
the following menu choices.  
1. Select STATUS from the main menu.  
2. Select 2)CURR ERR/ALM from the submenu.  
LOSS OF SIGNAL INACTIVE/ACTIVE is displayed giving the  
current state of the alarm.  
To Exit Any Menu Field Operation or Display  
Press the CANCEL key as many times as required to return to  
the desired menu level.  
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Chapter 3. Operation  
Menu Structure  
The TSU uses hierarchical menus to access its many features.  
The main menu leads to submenus which are grouped by  
function. All menu operations are displayed in the LCD  
window.  
1 ) S T A T U S  
2 ) C O N F I G  
3 ) U T I L  
4 ) T E S T  
This menu structure diagram is a limited overview. A de-  
tailed description of each menu item, presented in menu or-  
der is shown in Figure 3-2. A complete menu is shown in  
Appendix A.  
1 NI PERF REPORTS  
1 STATUS  
2 CURR ERR/ALM  
3 ERR/ALM HIST  
1 NETWORK (NI)  
2 CONFIG 2 UNIT  
1 TIME/DATE  
MAIN MENU  
3 PORT  
2 SOFTWARE REV  
3 REINIT UNIT  
4 ADDRESS  
3 UTIL  
1 NETWORK TESTS  
2 RUN SELFTEST  
3 PORT TESTS  
5 FACT RESTORE  
4 TEST  
Figure 3-2. The Four Opening Menus  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the direction of scrolling  
to view additional menu items. At every level of the menu  
pressing the CANCEL button returns the system to the  
previous menu level. Pressing the CANCEL button repeatedly  
returns the system to the main menu.  
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Chapter 3. Operation  
The opening menu is the access point to all other operations.  
There are four main menu items, 1)STATUS, 2)CONFIGURE,  
3)UTILITY, 4)TEST. Each main menu item has several  
functions and submenus to identify and access specific  
parameters. In the discussions that follow, each main menu  
contains a complete menu diagram to identify the location of  
each operation.  
The Four Opening Menu Functions  
STATUS  
The Status menu provides the ability to view the status of the  
TSU operation. This menu includes the following sub-items.  
NI PERF RPTS  
Used to view the user’s set of data on the Network Interface  
Performance Reports in compliance with ANSI T1.403 and  
AT&T Document TR54016.  
CURR ERR/ALM  
Used to view current errors/alarms which are being reported  
by the TSU.  
ERR/ALM HIST  
Used to view and clear history errors and alarms.  
CONFIG  
The Configuration menu is used to set the TSU's operational  
configuration. This menu includes the following sub-items.  
NETWORK (NI)  
Used to set all of the parameters associated with the network  
interface.  
UNIT  
Used to control TSU’s control port baud rate and to setup the  
dial out function.  
PORT  
Used to configure the parameters associated with the V.35  
port.  
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Chapter 3. Operation  
UTIL  
The Utility menu is used to view and to set system  
parameters. This menu includes the following subitems.  
TIME/DATE  
Accesses the display and allows the setting of the current  
time and date.  
SOFTWARE VERSION  
Displays the version number of the current software revision  
level. This information is required when requesting  
assistance from ADTRAN Customer and Product Service or  
when updates are needed.  
REINIT UNIT  
Used to reinitialize the unit. This menu item is not used to  
restore the factory default settings for all parameters.  
ADDRESS  
View and change the current Unit Address used for control  
port access.  
FACT RESTORE  
Restore factory default settings for all unit parameters.  
TEST  
The Test menu is used to initiate different types of tests of the  
unit and to view test results. Test results are displayed in the  
LCD window. The menu contains three sub-items.  
NETWORK TESTS  
Used to control the activation of loopbacks and the initiation  
of data test patterns.  
RUN SELF TEST  
Used to execute an internal self test.  
PORT TESTS  
Used for the testing of the DTE port.  
Executing tests will disrupt some normal operations. See individ-  
ual menu items concerning tests before executing.  
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Chapter 3. Operation  
MENU OPERATION  
Status Menu  
The Status menu branch provides the ability to view the  
status of the TSU operation. See Figure 3-3.  
RESET PERF CNTRS  
SES  
LOSS OF SIGNAL  
ES  
1) NI PERF RPTS % AV  
% EF  
AIS ALARM  
OUT OF FRAME  
YELLOW ALARM  
RED ALARM  
Calves  
2) CURR ERR/ALM  
CODE VIOLATIONS  
BIPOLAR VIOLATIONS  
FRAME BIT ERRORS  
PLL ALARM  
1) STATUS  
CLEAR HISTORY  
LOSS OF SIGNAL.  
AIS ALARM  
OUT OF FRAME  
3) ERR/ALM HIST YELLOW ALARM  
RED ALARM  
CODE VIOLATIONS  
BIPOLAR VIOLATIONS  
FRAME BIT ERRORS  
PLL ALARM  
Figure 3-3. Complete Status Menu  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the direction of scrolling  
to view additional menu items. At every level of the menu  
pressing the CANCEL button returns the system to the  
previous menu level. Pressing the CANCEL button repeatedly  
returns the system to the main menu.  
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Chapter 3. Operation  
NI PERF RPTS, Submenu of 1)Status  
The Network Interface Performance Reports displays the  
user copy of the performance data. The TSU maintains this  
performance data on the network in compliance with ANSI  
T1.403 and AT&T document TR54016. The data displayed is  
data accumulated over the last 15 minutes and over the last  
24 hours.  
1. With the cursor on main menu item, 1)STATUS, press  
ENTER. The first two Status submenu items with the  
cursor on 1)NI PERF RPTS displays.  
2. Press ENTER. The results display the first of six items in  
the Network Interface Performance report. The first  
menu, as shown below, is used to reset performance  
counters.  
3. Press ENTER to invoke this selection and clear all the  
choices below.  
1)RESET PERF CNTRS  
4. Use the down key to view the totals in the next figure.  
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Chapter 3. Operation  
These fields cannot be edited, only cleared as previously  
discussed. Only the user copy of performance data is cleared.  
15 Minutes  
24 Hours  
1)SES  
15MIN / 24HR  
10 / 120  
Data Values  
-
SES  
Number of Severely Errored Seconds  
-
-
-
ES  
Number of Errored seconds  
% of Available seconds  
% of Error free seconds  
%AV  
%EF  
-
CVs  
Number of Code Violations  
Continue with standard operating procedures to exit the  
display.  
Since only the user’s copy of performance data is cleared by the  
TSU, the data displayed here might be different from the data being  
sent to the network as PRM data.  
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CURR ERR/ALM Submenu of 1)Status  
The Current Error/Alarm menu is used for viewing currently  
Active/Inactive errors and alarms.  
1. With the cursor on main menu item 1)STATUS, press  
ENTER. The first of three Status submenu items with the  
cursor on 1)NI PERF RPTS displays.  
2. Press the down scroll key.  
3. Press ENTER.  
The results display the first current ERRORS/ALARMS screen.  
Alarm Investigated  
L O S S O F S I G N A L  
State (Active/Inactive)  
A C T I V E  
The up and down scroll keys are used to access the complete  
display of the errors/alarms that are currently active. The  
alarms and errors which can be seen are shown below.  
Loss of Signal  
AIS Alarm  
No pulses received at NI.  
Unframed All-Ones received at NI.  
No framing pattern sync at NI  
Out of Frame  
Yellow Alarm  
Receiving yellow alarm pattern from  
NI.  
Red Alarm  
LOS/OOF causing red alarm at NI.  
Code Violations  
CRC errors in ESF, or BPVs in SF were  
received at NI.  
Bipolar Violations BPVs in SF or ESF.  
Frame Bit Errors  
PLL Alarm  
Frame Bits received incorrectly at NI.  
Unable to sync up to selected clock  
source.  
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ERR/ALM Hist Submenu of 1)Status  
The Error/Alarm History menu is used for viewing history  
of errors and alarms. If an alarm has occurred since the last  
CLEAR HISTORY selection, the menu will be ACTIVE. If the  
condition hasn't occured then the menu will be INACTIVE.  
1. With the cursor on main menu item 1)STATUS.  
2. Press ENTER. The first of three status submenu items  
display.  
3. Press the down scroll key twice. The cursor is on  
3)ERR/ALM HIST.  
4. Press ENTER. The cursor is on the CLEAR HISTORY  
menu.  
CLEAR HISTORY  
5. Press ENTER. This results in clearing of all the ERROR/  
ALARM HISTORIES that follow.  
6. Use the up and down scroll keys to access the error and  
alarm conditions.  
These conditions are the same as for the CURR ERR/ALM  
submenu except with these are history Alarm/Errors instead  
of current Alarm/Errors.  
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Chapter 3. Operation  
Configuration  
The Configuration menu is used to set the TSU operational  
configuration, including all of the network interface  
parameters, the allocation of the DS0s and the port  
parameters. See Figure 3-4.  
1 FORMAT  
2 CODE  
3 YEL ALRM  
4 XMIT PRM  
1 NETWORK (NI) 5 CLOCK SOURCE  
6 BIT STUFFING  
7 SET LBO  
1 POSITION  
2 MODEM INIT  
3 DATA RATE  
1 CNTRL PORT  
2 ALARMS  
2 UNIT  
2 CONFIG  
1 TRAPS  
2 OUTPUT  
3 TEL NUM  
1 RATE 56/64  
2 CHANNELS  
3 DTE TX CLK  
4 START CHAN  
5 # OF CHAN  
6 DATA  
3 PORT  
7 CTS  
8 DCD  
9 DSR  
Figure 3-4. Complete Configuration Menu  
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Chapter 3. Operation  
1) NETWORK (NI) SUBMENU OF 2) CONFIG  
This menu is used to access the configuration of parameters  
associated with the network interface in the TSU. There are  
seven submenu items that include setting the format, the  
Line Build Out (LBO), the clock source, etc.  
Follow the standard operating procedure to access the  
Network (NI) menu item.  
1. With the cursor on 1)NETWORK (NI), press ENTER.  
The results display the first of two submenu items. The down  
scroll indicates there are additional menu item selections  
available.  
1 ) F O R M A T :  
2 ) C O D E :  
E S F  
B 8 Z S  
2. Continue with standard operating procedures to edit the  
Network Interface parameters.  
The fields and parameters available are as follows.  
FORMAT  
Sets the frame format for the NI.  
Choices: D4, ESF  
D4 is equivalent to Superframe Format (SF)  
CODE  
Sets the line code for the NI.  
Choices: AMI, B8ZS  
YEL ALRM  
Enables and disables the transmitting of yellow alarms.  
Choices: ENA, DISA  
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Chapter 3. Operation  
XMIT PRM  
Enables and disables the transmitting of Performance Report  
Messages (PRM) data on the Facility Data Link (FDL). The  
PRM data continues to be collected even if XMIT PRM is  
disabled. (Possible only with ESF Format.)  
Choices: ENA, DISA  
CLOCK SOURCE  
Selects the clock source for transmission toward the network  
form the NI.  
Choices: NETWORK, DTE, INTERNAL  
BIT STUFFING  
When enabled, Bit Stuffing causes the TSU to monitor for  
ones (1s) density violations and insert a one (1) when needed  
to maintain ones at 12.5%.  
This option should be disabled if B8ZS is enabled, if Nx56 is  
selected or alternate channels are being used. All of these  
other options already ensure pulse density requirements.  
Choices: ENA, DISA  
SET LBO  
Selects the Line Build Out for the network interface. In AUTO  
mode, the TSU will set the LBO based on the strength of the  
receive signal.  
Choices: 0db, -7.5db, -15db, -22.4db, AUTO  
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Chapter 3. Operation  
2) UNIT, SUBMENU OF 2) CONFIG  
The unit submenu is used to change control port and alarm  
options.  
1. Follow standard operating procedures to access the Unit  
menu item.  
2. With the cursor on 2)UNIT, press ENTER. The results  
display two submenu items.  
1 ) C O N T R O L P O R T  
2 ) A L A R M S  
1) CNTRL PORT  
Used to set the unit up as the Master or Slave on a chain of  
units, and whether to initialize a modem and the control port  
data rate.  
POSITION  
Determines if this TSU is at the head of a chain of units  
(directly connected to the modem or PC). The head of the  
chain is referred to as the Master Unit. Units down the chain  
are referred to as Slaves or a Slave Unit.  
The setting of the position selection is necessary only when  
using a modem, in which case the head unit should be  
Master. For all other cases, select SLAVE. (The Master is in  
charge for control of the modem.)  
Choices: MASTER; SLAVE  
MODEM INIT  
The TSU is capable of initializing a modem. This menu  
selection is used to effect this initialization and should be  
selected only when the choice above designates the TSU as  
the MASTER. Prior to modem initialization it should be  
physically connected to the TSU and the power turned on. At  
this point, an industry-standard AT command string is used  
to initialize the modem. The string is also used following  
future power-up sequences.  
Choices: ENAB - Enable; DISA - Disable  
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Chapter 3. Operation  
DATA RATE  
Selects the data rate for the control port. This should be  
consistent with all units on a chain and with the modem  
and/or PC/Proxy Agent serial port.  
Choices: 1200, 2400, 9600  
2) ALARMS  
Used to initialize the method by which the control port  
handles alarm conditions.  
TRAPS  
This setting determines if alarm conditions should  
automatically send alarm messages (traps) to the controlling  
PC/Proxy Agent. The setting is for this unit, or for slaves if  
this unit is a master.  
Choices: ENAB - Enable; DISA - Disable  
OUTPUT  
Selects whether the alarm traps (if enabled) are sent directly,  
or if the telephone number stored in the TSU should be  
dialed first (industry-standard AT dial command sent to  
modem).  
Choices: DIRECT or DIAL  
TEL NUM  
This is the telephone number which is dialed to obtain alarm  
traps. The string can be up to 20 characters in length and is  
terminated with a semi colon (;) as the last character. A colon  
(:) character is used to represent a pause in the dial string.  
Example: For number 9:5551212; dial 9, pause, and then send  
5551212. This pause could be effected to access an outside  
line form a PBX, etc.  
When editing a specific character, the scroll keys are used to  
scroll from 0 to 9, then “:” and “;”. The new telephone  
number is entered into the TSU only upon pressing ENTER  
after typing the “;”.  
Choices: 20 digits (0-9, : and ;)  
The typed digits are accepted only after pressing ENTER.  
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Chapter 3. Operation  
3) PORT, SUBMENU OF CONFIG  
The menu item PORT is used to select and then to configure  
the parameters associated with the V.35.  
1. Follow standard operating procedure to access 3)PORT.  
2. Press ENTER. The first nine submenu items appear.  
3. Continue with standard operating procedures.  
RATE 56/64  
This sets the base rate of the interface. The actual data rate  
depends on the number of DS0s assigned to the Nx port. The  
DTE data rate vs. the number of DS0s appear in Appendix II.  
Choices: 56K or 64K  
CHANNELS  
This sets the unit to use alternate or contiguous channels in  
the T1 data stream. If greater than 12 channels are used, then  
contiguous must be used. If not, then alternate channels may  
be used to meet pulse density requirements (only necessary  
for Nx 64 without B8ZS). If other than a private network, the  
carrier must be notified of this choice.  
Choices: ALT or CONT  
DTE TX CLK  
Controls the clock used by the TSU to accept the transmit  
(TX) data from the DTE. Normally this is set to INTERNAL. If  
the interface cable is long causing a phase shift in the data,  
the clock can be selected as INT/INV (Internal/Inverted). This  
switches the phase of the clock which should compensate for  
a long cable. If the DTE provides a clock with TX data, the  
clock selection is set to EXTERNAL. The TSU will depend on  
an externally supplied clock to accept the TX data.  
Choices: INTERNAL, INT-INV, or EXTERNAL  
START CHAN  
Used to select the channel in which the T stream will start.  
The setting must be consistent with the carrier if using a  
public network.  
Choices: 01 through 24  
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Chapter 3. Operation  
# OF CHAN  
Used to select the number of DS0s (channels) that are to be  
used. The corresponding DTE rate will be this number times  
56K or 64K, depending on Port Option number 1.  
Choices: 01 through 24  
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 ones (1s) density. TSUs on both  
ends must have identical option settings.  
Choices: NORMAL or INVERT  
CTS  
Used to control characteristics of CTS.  
Choices: NORMAL, (see Table 3-1) or FORCE ON  
DCD - Data Carrier Detect -  
Indicates to the DTE when a valid signal is being received at  
the Network Interface.  
Choices: NORMAL, (see Table 3-1) 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 3-1) or FORCE ON  
Table 3-1. Normal Mode of Operation  
NORMAL MODE OF OPERATION  
Conditions which cause the Port Control Signals to be deactivated.  
SIGNAL  
CTS  
RTS  
Follows  
-
V-54  
LOOPBK  
511 TEST SELFT TEST  
NETWK TEST  
ACTIVE  
NETWORK  
ALARMS  
ON  
ACTIVE  
OFF  
-
OFF  
OFF  
OFF  
YELLOW  
ALM  
DCD  
OFF  
OFF  
-
PATTERN  
OOF  
OR  
AIS  
DSR  
-
OFF  
OFF  
OFF  
-
Where “=” = don’t care  
Force On = On under all conditions  
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Chapter 3. Operation  
UTIL  
The utility menu is used to view and to set system  
parameters. See Figure 3-5. This includes setting the time and  
date and resetting all parameters to factory values or to  
reinitialize the unit. This menu is also used to view the unit’s  
software revision and the unit's ID setting.  
TIME: HH:MM:SS  
1 TIME/DATE  
DATE: MM/DD/YY  
2 SOFTWARE REV (Displays Current  
Software Revision)  
3 UTIL  
3 REINIT UNIT  
4 ADDRESS  
5 FACT RESTORE (Returns all configurations  
to factory settings)  
Figure 3-5. Complete Utility Menu  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the scrolling direction to  
view additional menu items. At every level of the menu  
pressing the CANCEL button returns the system to the  
previous menu level. Pressing the CANCEL button repeatedly  
returns the system to the main menu.  
1)Time/Date, Submenu of 3)Util  
This menu option is used to view or to edit the current time  
and date. The time and date are maintained during power off  
conditions.  
Follow standard operating procedure to access the 3)UTIL  
menu items.  
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Chapter 3. Operation  
1. With the cursor on 1)TIME/DATE press ENTER. The  
results display the current time and date with the cursor  
on the T in Time.  
T I M E : 0 5 : 0 7 : 0 6  
D A T E : 0 8 / 0 5 / 9 3  
2. Press ENTER to move to the first time position (hour).  
Use one or two number keys to set the desired hour.  
3. Press ENTER. The cursor moves to the second time  
position (minutes).  
4. Use one or two number keys to set the desired minutes.  
Press ENTER. The cursor moves to the third time position  
(seconds).  
5. Use one or two number keys to set the desired seconds.  
Press ENTER. The cursor again moves to the third time  
position.  
6. Press the down scroll key to move to DATE. The cursor is  
on the D of DATE.  
7. To set the Date use the same keystroke pattern as for  
setting the Time.  
8. To exit the TIME/DATE setting, press ENTER after making  
the last desired change.  
9. Press the CANCEL key.  
The unit returns to the opening of TIME/DATE setting with the  
cursor on the T of TIME. Any settings completed with an  
ENTER keystroke have been recorded. Any settings not  
completed by an ENTER keystroke are not recorded.  
Keystroke Summary for Editing Time/Date:  
Pressing ENTER after any numeric change always records the  
entry and moves to the next editing position. If ENTER is  
pressed at the editing position without making any change,  
the cursor moves to the next editing position.  
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Chapter 3. Operation  
The up and down scroll keys will also move the cursor to  
different fields to edit. Pressing CANCEL at any time can be  
used to end the editing process.  
2)Software Rev, Submenu of 3)Util  
Use the Software Revision submenu to access the display of  
the current software revision level. This information is  
required when requesting assistance from ADTRAN  
Customer Service or when updates are needed.  
Follow standard operating procedure to access the 3)UTIL  
menu items.  
1. With the cursor on 2)SOFTWARE REV, press the ENTER  
key. The the current software revision level displays.  
2. Use the CANCEL key to exit.  
3)Reinit Unit, Submenu of 3)Util  
Reinit Unit submenu is used to re-initialize the unit. This  
menu item is not used to restore the factory default settings  
for all parameters.  
1. Follow standard operating procedure to access the 3)UTIL  
menu items.  
2. With the cursor on 3)REINIT UNIT, press ENTER.  
The unit reinitializes all the hardware and performs a self-  
test.  
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Chapter 3. Operation  
4)Address,Submenu of 3)Util  
This submenu is used to access the current Unit Address  
setting. Unit identification numbers must be between 000  
and 256.  
1. Follow standard operating procedure to access the 3)UTIL  
menu items.  
2. With the cursor on 4)ADDRESS, press ENTER.  
The results display the prompt to enter the Unit  
Identification number limited to three digits between 000 and  
256.  
3 ) R E I N I T  
4 ) A D D R E S S : 0 0 0  
3. Press ENTER to active the menu. Use the up and down  
scroll keys to enter each digit. Press ENTER.  
4. After entering the third digit, press ENTER to record the  
complete Address.  
The cursor returns to 4)ADDRESS for another menu selection  
to be made.  
5)Fact Restore, Submenu of 3)Util  
The Factory Restore submenu is used to restore the factory  
default setting for all unit parameters. This will restore all  
parameters to the factory settings.  
1. Follow standard operating procedure to access the 3)UTIL  
menu items.  
2. With the cursor on 5)FACT RESTORE, press ENTER. The  
unit performs a self test before returning to the opening  
main menu. All factory preset defaults are restored.  
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Chapter 3. Operation  
Test  
The Test menu is used to initiate different types of tests of the  
unit and to view test results. Test results are displayed in the  
LCD window. The menu contains three subitems. See Figure  
3-6.  
Executing tests will disrupt some of the normal operation. See in-  
dividual menu items concerning tests before executing.  
LINE ON  
1 LOCAL LOOPBK  
NO LOOPBACK  
PAYLOAD ON  
NO LOOPBACK  
V.54 INBAND PLB  
ANSI FDL LLB  
AT&T INBAND LLB  
ANSI FDL PLB  
AT&T PLB  
2 REMOTE LOOPBK  
1 NETWORK TESTS  
NO PATTERN  
1:8 ALL DSOs  
511 ACT. DS0s  
ALL ONES  
3 TEST PATTERN  
4 TEST  
4 CLR 511 ERRS  
(Displays Results)  
(and error display)  
2 RUN SELFTEST  
3 PORT TESTS  
1 DTE LOOPBK: OFF  
Figure 3-6. Complete Test Menu  
Menu flow is normally depicted from left to right. Arrows on  
the lower right of the screen indicate the scrolling direction to  
view additional menu items. At every level of the menu  
pressing the CANCEL button returns the system to the  
previous menu level. Pressing the CANCEL button repeatedly  
returns the system to the main menu.  
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Chapter 3. Operation  
1)Network Tests, Submenu of 4)Test  
Network Tests are used to control the activation of loopbacks  
and the initiation of data test patterns.  
The Network tests are run on the Network INterface (NI).  
Three different test configurations can be selected to  
determine the type of loopback and the pattern to run. Test  
results are displayed in the LCD window.  
1. With the cursor on main menu item 4)TEST, press  
ENTER.  
The first twoTest submenu items with the cursor on  
1)NETWORK TESTS displays.  
2. Press ENTER.  
The first of three submenu choices with the cursor on  
1)LOCAL LOOPBCK displays. There are three available  
choices for setting the local loopback.  
Line On - Activates the line loopback  
Payload On - Activates the payload loopback  
No loopback - Deactivates the loopback.  
3. Use the up and down scroll keys to select and press  
ENTER to record selection. The cursor returns to the 1 in  
front of LOCAL LOOPBACK.  
4. Use the up and down scroll keys to select 2)REMOTE  
LOOPBACK or 3)PATTERN.  
2)REMOTE LOOPBK- activates the same loopbacks as the  
LOCAL but at the far end. This uses either the inband loopup  
code as specified byAT&T 62411 for line loopback (ATT In-  
Band LLB), or the FDL as specified in ANSI T1.403 for  
payload and line loopback codes. An FDL (formerly TABS)  
maintenance message corresponding to AT&T TR54016 can  
be used for payload loopback as well.  
•
No loopback - deactivates the loopback  
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Chapter 3. Operation  
•
V.54 Inband PLB - indicates inband transmission of V.54  
loopup pattern in channels occupied by DTE data only.  
This choice should be used for public fractional network  
•
•
•
•
ANSI FDL LLB - initiates the transmission of an FDL  
Line loopup code toward the far end.  
AT&T Inband LLB - activates the line loopback using  
inband code  
ANSI FDL PLB - initiates the transmission of an FDL  
payload loopup code toward the far end  
AT&T PLB - indicates the transmission of the PLB  
maintenance on the FDL  
Only V.54 LOOPBACKS can be used with fractional T1 since the  
full T1 stream including the FDL is not transported to the far end  
(unless it is a private network).  
5. Use the up and down scroll keys to select.  
6. Press ENTER to record selection. The cursor returns to the  
2 in front of REMOTE LOOPBACK.  
7. Use the up and down scroll keys to select 1)LOCAL  
LOOPBACK or 3)PATTERN.  
3)PATTERN - Sets the pattern for the test and initiates the  
transmission of the pattern. The test is terminated by  
selecting NONE. There are four patterns available.  
•
•
3.24 All DS0s - generates a 3 in 24 pattern  
511 Active DS0s - generates a 511 test pattern and inserts  
the pattern into currently active channels  
•
•
•
1:8 ALL DS0s - generates a 1 in 8 pattern in all DS0s  
All Ones - generates an all ones pattern in every channel  
None - terminates pattern generation  
8. Use the up and down scroll keys to select; for example,  
511 ACTIVE DS0s.  
9. Press ENTER to record selection. The TSU starts to  
generate a 511 test pattern and inserts the pattern into all  
DS0s.  
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Chapter 3. Operation  
4)CLR 511 ERRORS - Accomplishes two functions. First, it  
clears out the 511 error total when ENTER is pressed. Second,  
it displays a total of the 511 errors. If 511 errors are being  
received, the display is updated accordingly.  
C L R 5 1 1 E R R O R S  
5 1 1 E R R O R S = 5 6  
This menu function is very useful for testing end-to-end  
integrity of the network. First loopup the far end TSU. Then  
send a 511 pattern from the local TSU. The CLR 511 ERRORS  
screen can then be used to determine if the link is functioning  
properly by verifying that no errors are being counted.  
2)Run Selftest, Submenu of 4)Test  
This menu selection is used to execute an internal self test.  
This is the same self test that is performed automatically at  
power up. The results of the self tests are displayed in the  
LCD. Upon invoking the command the LCD displays  
INITIALIZING and test failures are displayed in the LCD  
window. The self test procedure consists of the following  
tests.  
•
•
Ram tests; EPROM checksum  
On board data path. Sending a known test pattern  
through an on-board loop  
•
•
Front Panel LED verification  
Phase Lock Loop verify  
If a failure is detected, note the failure number prior to  
contacting ADTRAN technical support.  
Executing a self test will disrupt normal data flow and prevent re-  
mote communication until the self test is completed (5 seconds).  
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Chapter 3. Operation  
1. Follow standard operating procedure to access the  
4)TEST menu item.  
2. With the cursor on 2)RUN SELFTEST, press ENTER.  
A changing display in the LCD showing the test outcome  
displays.  
S Y S T E M S E L F - T E S T  
A L L T E S T S P A S S E D  
3. Press the CANCEL key to exit.  
3)Port Tests submenu of 4)Test  
Port Tests are used to control the activation of a DTE  
loopback. This test loops data received at theV.35 interface  
back towards the DTE.  
1. With the cursor on main menu item 4)TEST, press  
ENTER. The first two Test submenu items with the cursor  
on 1)NETWORK TESTS displays.  
2. Use the down scroll key to select 3) PORT TESTS.  
3. Press ENTER. The loopback setting displays.  
1 ) D T E L O O P B C K : O F F  
4. Use the scroll keys to select OFF or ON.  
•
•
ON - the DTE Loopback is activated  
OFF - deactivates looping (returns unit back to  
normal state)  
5. Press the CANCEL key to exit.  
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Chapter 3. Operation  
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Chapter 4  
Testing Example  
Prior to actually using the TSU to pass data, it is  
recommended to run tests on the circuit.  
The testing consists of sending a test pattern from end to end  
and checking for errors in the pattern. There are two types of  
tests used to accomplish this.  
•
•
Send the pattern from one end and loopback the far end.  
Send the pattern from both ends and check at both ends.  
Far End Looped Back Test  
Two types of tests can be executed with the far end looped.  
The first is a check of the network and the network interfaces  
at both ends (511). The second is a check of the DTE port.  
Network Interface Test  
The Network Interface Test can be run with any channel  
setup because the 511 pattern is always sent in the occupied  
channels.  
1. At the main menu, use the scroll keys to place the cursor  
on 4)TEST.  
1 ) M O N I T O R  
2 ) C O N F I G  
3 ) U T I L  
4 ) T E S T  
2. Press ENTER to select.  
The first two test submenu items display.  
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Chapter 4. Testing Example  
1 ) N E T W O R K T E S T S  
2 ) R U N S E L F T E S T  
3. Use the scroll keys to place the cursor on 1)NETWORK  
TESTS.  
4. Press ENTER to select.  
5. Press ENTER again to enter the NETWORK TEST MENU.  
The beginning display of the submenu items display. The  
selections available for each menu item are selected with the  
up and down scrolls.  
L I N E O N  
1 ) L O C A L L O O P B K :  
P A Y L O A D O N  
N O L O O P B A C K  
N O L O O P B A C K  
V . 5 4 P L B O N  
A T T P L B O N  
2 ) R E M O T E L O O P B K :  
A T T L L B O N  
N O L O O P B A C K  
A N S I L L B O N  
A N S I P L B O N  
N O L O O P B A C K  
N O P A T T E R N  
3 . 2 4 A L L D S 0 s  
3 ) T E S T P A T T E R N :  
A L L O N E S  
N O N E  
5 1 1 A C T I V E D S 0 s  
1 : 8 A L L D S 0 s  
4 ) C L R 5 1 1 E R R O R S  
5 1 1 E R R O R S = 0  
6. Use the scroll keys to place the cursor on 2)REMOTE  
LOOPBK  
7. Press ENTER to select  
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Chapter 4. Testing Example  
8. Use the up and down scroll keys to set PAYLOAD in data  
the field. (Must use V.54 PLB ON For Fractional T1 on  
Public Networks.)  
9. Press ENTER to activate a Remote Payload Loopback.  
This initiates the transmission of a loopup code toward the far  
end.  
10. When completed use the up and down scroll key or the  
number 3 to select 3)TEST PATTERN.  
11. Press ENTER to activate the TEST PATTERN submenu.  
12. Use the up and down scroll keys to select 511 ALL DS0s.  
13. Press ENTER to activate the selection.  
The TSU always checks for 511 errors. The results of this  
check are shown under submenu item 4.  
3 ) T E S T P A T T E R N :  
5 1 1 A L L D S 0 s  
4 ) C L R 5 1 1 E R R O R S  
5 1 1 E R R O R S = 0  
14. When through viewing the results, press the CANCEL key  
to return to submenu item 3)TEST PATTERN and select  
NONE to terminate the test and the 511 pattern  
generation. The far end will still be in loopback until the  
network REMOTE LOOPBK is set to NONE under  
submenu item 2)REMOTE LOOPBK.  
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Chapter 4. Testing Example  
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Appendix A  
TSU Complete Menu  
RESET PERF CNTRS  
1) NI PERF RPTS  
SES  
ES  
% AV  
LOSS OF SIGNAL  
%EF  
AIS ALARM  
CVS  
OUT OF FRAME  
2) CURR ERR/ALM  
CLEAR HISTORY  
LOSS OF SIGNAL  
AIS ALARM  
YELLOW ALARM  
RED ALARM  
1) STATUS  
CODE VIOLATIONS  
BIPOLAR VIOL  
FRAME BIT ERRORS  
PLL ALARM  
OUT OF FRAME  
YELLOW ALARM  
RED ALARM  
CODE VIOLATIONS  
BIPOLAR VIOLATIONS  
FRAME BIT ERRORS  
PLL ALARM  
3) ERR/ALM HIST  
1) NETWORK (NI)  
1) FORMAT  
2) CODE  
3) YEL ALRM  
4) XMIT PRM  
5) CLOCK SOURCE  
6) BIT STUFFING  
7) SET LBO  
1) POSITION  
2)MODEM INIT  
3)DATA RATE  
1) CNTRL PORT  
2) ALARMS  
2) UNIT  
1)TRAPS  
2) CONFIG  
2)OUTPUT  
3)TEL NUM  
1)RATE 56/64  
2)CHANNELS  
3)DATA TX CLOCK  
4)START CHAN  
5)# OF CHAN  
6)DTAT  
MAIN MENU  
3) PORT  
7)CTS  
TIME: HH:MM:SS  
DATE: MM/DD/YY  
8)DCD  
1) TIME/DATE  
9)DSR  
(Displays Current  
Software Revision  
2) SOFTWARE REV  
3)REINIT UNIT  
4)ADDRESS  
3) UTIL  
(Returns all configurations  
to factory settings)  
5)FACT RESTORE  
LINE ON  
1) LOCAL LOOPBK  
2) REMOTE LOOPBK  
3) TEST PATTERN  
NO LOOPBACK  
PAYLOAD ON  
NO LOOPBACK  
V.54 INBAND PLB  
ANSI FDL LLB  
AT&T INBAND LLB  
ANSI FDL PBL  
AT&T PBL  
1) NETWORK TESTS  
NO PATTERN  
1:8 ALL DS0s  
511 ACT. DS0s  
ALL ONES  
4) TEST  
(and error display)  
4)CLR 511 ERRS  
(Displays Results)  
2) RUN SELFTEST  
3) PORT TESTS  
1)DTE LOOPBK: OFF  
Figure A-1. TSU Complete Menu Diagram  
61200060L1-1  
TSU User Manual  
A-1  
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Appendix A. TSU Complete Menu  
A-2  
TSU User Manual  
61200060L1-1  
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Appendix B  
DTE Data Rate Chart  
DTE DATA RATE vs DS0s (N)  
# of DS0s (N)  
N = 1  
DTE RATE = 56K DTE RATE = 64  
56K  
64K  
N = 2  
112K  
168K  
224K  
280K  
336K  
392K  
448K  
504K  
560K  
616K  
672K  
728K  
784K  
840K  
896K  
952K  
1008K  
1064K  
1120K  
1176K  
1232K  
1288K  
1344K  
128K  
192K  
256K  
320K  
384K  
448K  
512K  
576K  
640K  
704K  
768K  
832K  
896K  
960K  
1024K  
1088K  
1152K  
1216K  
1280K  
1344K  
1408K  
1472K  
1536K  
N = 3  
N = 4  
N = 5  
N = 6  
N = 7  
N = 8  
N = 9  
N = 10  
N = 11  
N = 12  
N = 13  
N = 14  
N = 15  
N = 16  
N = 17  
N = 18  
N = 19  
N = 20  
N = 21  
N = 22  
N = 23  
N = 24  
Figure B-1. DTE DATA RATE CHART  
61200060L1-1  
TSU User Manual  
B-1  
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Appendix B. DTE Data Rate Chart  
B-2  
TSU User Manual  
61200060L1-1  
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Index  
Symbols  
(NI) Network Interface 1-6  
E
exit menu operation 3-5  
Extended Superframe 1-1  
Numerics  
F
1 in 8, test pattern 1-14  
3 in 24, test pattern 1-13  
511, test pattern 1-14  
factory default 3-24  
Far End Loop Back Test 4-1  
Federal Communications Commis-  
sion Radio Frequency Interference  
Statement v  
Fractional T1 1-2  
Front Panel  
A
All Ones, test pattern 1-13  
Application 1-14  
Arrows, Menus 3-3  
Displays 3-2  
LED Identification 3-2  
C
Chain Out 2-4  
I
Chain Port Output 1-6  
Configuration Menu  
Overview 3-7  
Control In/Chain In 2-3  
Control Port Input 1-6  
Customer Service vii  
Customer Service, Warranty vii  
Internal Timing 1-10  
L
LED Identification 3-2  
Line Loopback 1-12  
Loopback Tests 1-11  
D
M
Data Field 3-3  
display only 3-5  
Display Field 3-3  
DTE  
Menu  
Menu Functions 3-7  
Operation 3-3  
Interface Loopbacks 1-13  
DTE data rate chart B-1  
DTE Loopback 1-13  
DTE Timed 1-9  
N
Network (NI)  
Performance Data 3-10  
Network Interface 1-6  
61200060L1-1  
TSU User Manual  
Index-1  
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Index  
Network Interface Test 4-1  
Network Loopbacks 1-12  
Network Timed 1-8  
Network, rear panel modular jack 2-2  
Nx56/64 Serial Interface 1-6  
Nx56k/64k DTE (V.35 Connection) 2-5  
T
T1 service offerings 1-1  
T1/FT1, overview 1-1  
Test Menu 3-25  
Detail 3-25  
Overview 3-8  
Patterns 3-27  
testing, example 4-1  
TSU clock sources 1-8  
TSU Overview 1-3  
TSU testing 1-11  
TSU unit, items customer provides 2-1  
TSU, features 1-5  
TSU, interfaces 1-5  
TSU, menu tree A-1  
T-WATCH 1-11  
P
Pattern Generation, TSU test patterns  
1-13  
Payload Loopback 1-12  
Power Connection 2-1  
power up testing and initialization 2-6  
power up, self test 2-6  
R
re-initialize 3-23  
U
repair, and return information vii  
Utility Menu 3-21  
Overview 3-8  
Software Revision 3-23  
S
Safety Instructions vi  
Self Test 1-11  
W
self test, upon powerup 2-6  
self tests 1-11  
Shipping package, contents of 2-1  
Software Revision 3-23  
Status Menu  
Warranty and Customer Service vii  
Wiring  
Chain Out 2-4  
Control In/Chain In 2-3  
Nx56k/64k DTE (V.35) 2-5  
PC Control Port 2-3  
Detail 3-9  
Overview 3-7  
Y
Y2K Readiness Disclosure iii  
Index-2  
TSU User Manual  
61200060L1-1  
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Product Support Information  
Presales Inquiries and Applications Support  
Please contact your local distributor, ADTRAN Applications Engineer-  
ing, 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 can-  
not help, please contact ADTRAN Technical Support and have the unit  
serial number available.  
Technical Support  
(888) 4ADTRAN  
Repair and Return  
If ADTRAN Technical Support determines that a repair is needed, Tech-  
nical Support will coordinate with the Customer and Product Service  
(CAPS) department to issue an RMA number. For information regard-  
ing 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  
6767 Old Madison Pike  
Progress Center  
Building #6, Suite 690  
Huntsville, AL 35807  
RMA # _____________  
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