Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Control Unit Problems
Page 4-50
Module Problems
To run the Internal Loopback Module Test, follow the steps below.
Console Display/Instructions Additional Information PC
From the Maintenance menu, select the Slot option.
Time Estimate It takes approximately 1.5 minutes to run each test. The
100D module and 408 GS/LS-MLX module each take
approximately 3 minutes, because they each have two
DSEs.
Busy-Out or Reset Busy-out or reset the module being tested prior to
beginning the test. Both Busy-Out and Reset are in the
Slot menu, which you can access by doing the following
from the console:
Menu→
Maintenance→Slot
See ‘‘Busy-Out and Reset’’, earlier in this chapter, for
additional information.
Interrupting the Test You can interrupt the test (both
Test Once and
Repetitive) by selecting Exit.
Test Failure If the test fails, record the errors on the repair tag and
replace the module.
Restore Restore the module if it successfully completes all
module tests and the errors no longer occur. Restore is
in the Slot menu, which you can access by doing the
following from the console:
Menu→
Maintenance→Slot
See the ‘‘Restore’’ procedure, earlier in this chapter, for
additional information.
Maintenance
Make a selection
System
Slot
Port
Exit