B-Channel Loopback Test - Avaya MERLIN MAGIX Maintenance And Troubleshooting Manual

B-Channel Loopback Test

This test verifies that specific communication paths on the MLX or 800 NI-BRI modules are
operational. If you have not read
test.
Procedure
Appropriate Modules
Time Estimate
Busy-Out or Reset
Interrupting the Test
Test Failure
Restore
''Module Test Process''
→
Menu
Maintenance
BchLoopback
This test can be run only on MLX or 800 NI-BRI modules.
In the procedure above, when you select Enter , the following additional
options appear, depending on the module:
For all MLX modules,
I
For all 800 NI-BRI modules, Clock , BChLoopback , and
I
Provisioning are also displayed.
Approximately 1.5 minutes.
Busy-out or reset the module being tested prior to beginning the test. See
''Busy-Out'' on page 6-4
Interrupt the test by selecting Back .
If the test fails, record the errors on the repair tag and replace the module.
Lines 3 and 4 of the test failure results identify the cause of the failure or
the number of errors found per B-channel. On an MLX module, there are
16 B-channels, numbered 0 through 15. Line 3 displays the results for
B-channels 0 through 7; Line 4 is for B-channels 8 through 15.
Restore the module if it successfully completes all module tests and the
errors no longer occur. See
6
on page 6-1, do so before performing this
→ →
Enter the slot no. (01-17)
Slot
is also displayed.
BChLoopback
and ''Reset'' on page 6-5.
''Restore'' on page 6-6.
Tests
→ →
Enter

B-Channel Loopback Test

6-11