Maintenance Object Repair Procedure
555-233-142
8-1248 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 is already installed) or
when the CSU module 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.
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, 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. Begin by replacing the CSU module 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.
1312 FAIL The Integrated CSU (I-CSU) Module Repeater Loopback (RLB) test (#1211)
failed. This test is executed during I-CSU power-up/reset (i.e., the UDS1 board
is physically inserted and the CSU module is already installed) or when the
CSU module 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.
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.
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 8-526. Test #138 Loss of Signal Alarm Inquiry Test — Continued
Error
Code
Tes t
Result Description / Recommendation
Continued on next page
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