Avaya S8700 Maintenance Manual page 553

UDS1-BD (UDS1 Interface Circuit Pack)
Table 8-526. Test #138 Loss of Signal Alarm Inquiry Test — Continued
Error Test
Code Result Description / Recommendation
1320 FAIL Either a CSU module hardware failure or an ICSU serial-interface audit failure
was detected by the UDS1 circuit pack.
1. Replace the CSU module, and then run the test again.
2. If the test continues to fail with this error code, replace the UDS1-BD circuit
3. If the test continues to fail with this error code, then the problem could be in
1321 FAIL DTE LOS (loss of signal) was detected between the UDS1 board and the CSU
module. Either the UDS1 board, the CSU module, or the I/O cable between the
backplane and the CSU module (or any combination thereof) has failed.
Attempt to isolate the problem to one of these areas.
1. Replace the CSU module, and run the test again.
2. If the test continues to fail with this error code, then replace the UDS1-BD
3. If the test continues to fail with this error code, the problem could be in the
1322 FAIL No 5-Volt power detected from the UDS1 circuit pack to the CSU moduler.
Problem is probably due to an open fuse on the DS1 board or to a faulty ICSU.
1. If the test continues to fail with this error code, then replace the CSU
2. Remove the UDS1 from the system and reinsert.
3. Run the test again once the board has finished its reset.
4. If the test continues to fail with this error code, then replace the UDS1-BD
5. If the test continues to fail with this error code, the problem could be in the
1323 FAIL A service-affecting CSU module audit failure was detected by the UDS1 circuit
pack. Every administered port on the UDS1 circuit pack is affected, and
maintenance software will place the ports into the out-of-service state.
1. Replace the CSU module.
555-233-142
pack, and run the test again.
the I/O cable between the backplane and the CSU module.
board, and run the test again.
I/O cable between the backplane and the CSU module.
NOTE:
Do not immediately swap a DS1 board as this may blow the fuse on the
new board.
module, and run the test again.
board, and run the test again.
I/O cable between the backplane and the CSU module.
Continued on next page
Issue 1 May 2002 8-1249