Avaya Definity SI, Maintenance Manual, Page: 1422 / 2968

Maintenance Object Repair Procedures
555-233-123 10-636 Issue 4 May 2002
1313 FAIL The TN767E circuit pack could not deactivate a CPE Loopback
Jack loopback.
1. Execute test ds1-loop UUCSS end-loopback/span-test.
2. If the attempt to deactivate the CPE Loopback Jack is not
successful, check the cabling and investigate the problem at
the CPE Loopback Jack.
3. Run the test again.
1314 FAIL The TN767E circuit pack could not deactivate a far-end CSU
loopback.
1. Execute test ds1-loop UUCSS end-loopback/span-test.
1320 FAIL A CSU Module/T1 Sync Splitter hardware failure or an ICSU/T1
Sync Splitter serial interface audit failure was detected by the
TN767E DS1 circuit pack.
1. Replace the CSU Module/T1 Sync Splitter, and then run the
test again.
2. If the test continues to fail with this error code, replace the
TN767E and run the test again.
3. If the test continues to fail with this error code, the problem
could be in the I/O cable between the backplane and the
CSU Module/T1 Sync Splitter.
1321 FAIL DTE LOS (loss of signal) was detected between the TN767E DS1
board and the 120A1 CSU Module or the T1 Sync Splitter. Either
the TN767E board, the 120A1 CSU Module/T1 Sync Splitter, or
the I/O cable between the backplane and the 120A1 CSU Module
or the 401A T1 Sync Splitter (or any combination thereof) has
failed. Attempt to isolate the problem to one of these areas.
1. Replace the CSU Module/T1 Sync Splitter and run the test
again.
2. If the test continues to fail with this error code, then replace
the TN767E board and run the test again.
3. If the test continues to fail with this error code, the problem
could be in the I/O cable between the backplane and the
120A1 CSU Module or the 401A T1 Sync Splitter.
Table 10-235. TEST #138 Loss of Signal Alarm Inquiry Test — Continued
Error
Code Test
Result Description/Recommendation
Continued on next page