Table 4-1. Internal Loopback Test Errors; Error Message - AT&T MERLIN LEGEND Communications System Release 2.0 Maintenance And Troubleshooting Manual

Control Unit Problems
Step
8
Demand Test Slot xx: >
Board aaaaaaaaaaaaaaaaaa
Internal Loopback Test
FAILED
xxxxxxxxxxxxxxxxxxxxxxx
xx xx xx xx xx xx xx xx
Exit
Interpreting the Test Results
If the test completes successfully, the module DSE ports are free from error.
Continue with the next module test or restore the module if finished testing.
If the test fails, find the error message in Table 4-1 and proceed as indicated.

Table 4-1. Internal Loopback Test Errors

Error Message

Slot is not busied-out
Slot empty or not valid
4-38 Module Problems
Display
Instructions
This screen appears when either test
(Once or Repetitive) fails.
Lines 5 and 6 identify the cause of the
failure or the number of errors found per
DSE port. There are 16 DSE ports.
numbered 0 through 15. Line 5 displays
the results for ports 0 through 7; Line 6 is
for ports 8 through 15.
The 100D module and 408 GS/LS-MLX
module each have two DSES. To display
the second DSE's test results, press More.
Corrective Action
Exit the test, busy-out the slot, and try
again.
Exit the test and try again; be sure to
type the correct slot number. Do not
indicate an empty slot or the processor
(00)
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