UDS1-BD (UDS1 Interface Circuit Pack)
Issue 1 May 2002
8-1747555-233-143
1320 FAIL Either a CSU module/Sync Splitter hardware failure or an ICSU/Sync Splitter
serial-interface audit failure was detected by the UDS1 circuit pack.
1. Replace the CSU module/Sync Splitter, and then run the test again.
2. If the test continues to fail with this error code, replace the UDS1-BD circuit
pack, and run the test again.
3. If the test continues to fail with this error code, then the problem could be in
the I/O cable between the backplane and the CSU module/Sync Splitter.
1321 FAIL DTE LOS (loss of signal) was detected between the UDS1 board and the CSU
module or the Sync Splitter. Either the UDS1 board, the CSU module/Sync
Splitter, or the I/O cable between the backplane and the CSU module/Sync
Splitter (or any combination thereof) has failed. Attempt to isolate the problem
to one of these areas.
1. Replace the CSU module/Sync Splitter, and run the test again.
2. If the test continues to fail with this error code, then replace the UDS1-BD
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 CSU module/Sync Splitter.
1322 FAIL No 5-Volt power detected from the UDS1 circuit pack to the CSU module or the
Sync Splitter. Problem is probably due to an open fuse on the DS1 board or to
a faulty ICSU/Sync Splitter.
NOTE:
Do not immediately swap a DS1 board as this may blow the fuse on the
new board.
1. If the test continues to fail with this error code, then replace the CSU
module/Sync Splitter, and run the test again.
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
board, and run the test again.
5. 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/Sync Splitter.
1323 FAIL A service-affecting CSU module/Sync Splitter 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 or the Sync Splitter.
Table 8-673. Test #138 Loss of Signal Alarm Inquiry Test — Continued
Error
Code
Tes t
Result Description / Recommendation
Continued on next page
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