Maintenance-Object Repair Procedures
555-233-143
8-1746 Issue 1 May 2002
1311 FAIL The Integrated CSU (I-CSU) Module Equipment Loopback (ELB) test (#1210)
failed. This test is executed by the I-CSU during I-CSU power-up/reset (i.e., the
UDS1 board is physically inserted and a CSU module or a Sync Splitter is
already installed) or when the CSU module/
Sync Splitter is plugged on to an
already initialized DS1 board. The ELB test is also executed as part of the
command test ds1-loop UUCSS ds1/csu-loopback-tests for the CSU module
and T1 sync splitter.
1. Execute the test ds1-loop UUCSS ds1/csu-loopback-tests command.
2. If the ELB test continues to fail, then either the UDS1 board, the CSU
module/T1 sync splitter, or the I/O cable between the backplane and the
CSU module/T1 sync splitter (or any combination thereof) has failed.
Attempt to isolate the problem to one of these areas. Begin by replacing
the CSU module/T1 sync splitter and running the test ds1-loop UUCSS
ds1/csu-loopback-tests command again.
3. If the ELB test continues to fail, then replace the UDS1 board, and run the
test ds1-loop UUCSS ds1/csu-loopback-tests command again.
4. If the ELB test continues to fail, the problem could be in the I/O cable
between the backplane and the CSU module/T1 sync splitter.
1312 FAIL The Integrated CSU (I-CSU) Module Repeater Loopback (RLB) test (#1211)
failed. This test is executed during I-CSU/Sync Splitter power-up/reset (i.e., the
UDS1 board is physically inserted and the CSU module or the Sync Splitter is
already installed) or when the CSU module/Sync Splitter is plugged on to an
already initialized DS1 board. The RLB test is also executed as part of the
command test ds1-loop UUCSS ds1/csu-loopback-tests for the CSU
module/T1 sync splitter.
1. Execute the test ds1-loop UUCSS ds1/csu-loopback-tests command.
2. If the RLB test continues to fail, then replace the CSU module/T1 sync
splitter.
3. Run this test again.
1313 FAIL The UDS1 circuit pack could not deactivate a CPE Loop-Back Jack loopback.
1. Execute the test ds1-loop UUCSS end-loopback/span-test command.
2. If the attempt to deactivate the CPE Loop-Back Jack is not successful,
check the cabling and investigate the problem at the CPE Loop-Back Jack.
3. Run the test again.
1314 FAIL The UDS1 circuit pack could not deactivate a far-end CSU loopback.
1. Execute the test ds1-loop UUCSS end-loopback/span-test command.
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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