Avaya S8700 Maintenance Manual page 552

Maintenance Object Repair Procedure
Table 8-526. Test #138 Loss of Signal Alarm Inquiry Test — Continued
Error Test
Code Result Description / Recommendation
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
3. If the ELB test continues to fail, then replace the UDS1 board, and run the
4. If the ELB test continues to fail, the problem could be in the I/O cable
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,
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.
8-1248 Issue 1 May 2002
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.
test ds1-loop UUCSS ds1/csu-loopback-tests command again.
between the backplane and the CSU module.
check the cabling and investigate the problem at the CPE Loop-Back Jack.
Continued on next page
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