DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Additional Maintenance Procedures
6-34Analog Tie Trunk Back-to-Back Testing
6
Analog Tie Trunk Back-to-Back Testing
The TN760 circuit pack can be configured for back-to-back testing (also known
as connectivity testing) by making translation and cross-connect changes. This
testing configuration allows for the connection of Tie Trunks back-to-back in the
same switch to verify the operation of Tie Trunk ports. The tests can be
performed in either the E&M or simplex modes. (Refer to
DEFINITY
Communications System Generic 1 and Generic 3 Installation and Test,
555-230-104, for instructions on how to make connections at the cross-connect
field).
E&M Mode Test Procedure
1. At the administration terminal, enter
list configuration trunks
to
determine which ports are assigned on the Tie Trunk circuit pack.
2. Enter
display dialplan
command to determine the Trunk Access Code
(TAC) format.
3. Enter
display port
xxx for all ports defined in Step 1. This displays the
trunk groups of which the ports are members. See
Chapter 5, ‘‘Alarms,
Errors, and Troubleshooting’’ for details of how to remove and replace port
circuit packs.
4. Insert the circuit pack back into the slot.
5. Enter
display trunk
xxx
p
for each trunk group identified in Step 3. This
command displays the specified trunk group on the administration
terminal screen and prints a hard copy on the printer. Save this data for
later use.
6. Remove all members defined by these ports from the trunk group(s) using
the
change trunk
xxx command.
7. Remove the Tie Trunk circuit pack from the carrier slot.
8. Set the dip (option) switches for each of the two ports to be tested on the
Tie Trunk circuit pack to “E&M mode” and “unprotected.”
9. Enter
add trunk n
to add a new (test) trunk group. Then enter information
for the following fields:
Group Type tie
TAC Use trunk access code obtained from dial
plan
Trunk Type (in/out) wink/wink
Port Assign two of the ports from the tie trunk.
Mode E&M for both ports
Type Specify one port as t1 standard and other
port as t1 compatible.
