Module Test Process - AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual

Module Problems
1 Check the equipment:
power supply
processor
(back up the system programming)
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
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
Control Unit Problems
4–35