Lucent Technologies MERLIN LEGEND Release 5.0 Maintenance And Troubleshooting Manual page 126

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting 555-650-140
Control Unit Problems
Module Problems
1
2 Check the error logs
3 Resolve any processor problems
4 Busy-out or reset the module
5 Run the Internal Loopback test
6 Check the error logs
7
Run the BchLoopback test
for MLX modules only
8
Verify that voice calls can be made
on each BRI line
9
Run the CSU Loopback test
for 100D modules only
10
Run the BRI Provisioning Test for
NI-BRI modules only
11 Replace the module if needed
12 Restore the module
_____________________________________________________
* If any problem arises with the voice call on an NI-BRI module, run the NI-BRI
Provisioning Test next. While the BRI test is running, you can run the voice test on the
next module.
** Run the NI-BRI Provisioning Test on any NI-BRI module that is going to be used for data
calls or that had a problem with voice calls and was not previously tested with the tool.
Figure 4-6. Module Test Process
Check the equipment:
power supply
processor
(back up the system programming)
*
**
maintenance terminal
(use the PC when testing
MLX modules)
errors
errors
errors
Record the errors on
the repair tag and
continue with the
next step.
errors
Issue 1
June 1997
Page 4-36