User manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
Maintenance Objects 
3-569DS1-BD (DS1 Interface Circuit Pack) 
3
1303 FAIL The DS1 circuit pack Suffix is incorrect for CSU Module/T1 Sync Splitter 
administration. The 
Near-End CSU Type
 field on the 
add ds1
 form has been 
administered as 
integrated
 but the DS1 circuit pack is not a TN767E or later 
suffix DS1 board.
1. If the CSU Module or the T1 Sync Splitter is to be used, and the 
Near-End 
CSU 
Type field is set to 
integrated
 to allow for CSU Module/T1 Sync 
Splitter administration, remove the circuit pack and replace it with a 
TN767E or later suffix board. Otherwise use the 
change ds1
 command to 
change the 
Near-End CSU Type
 field to 
other
.
1310 FAIL The DS1 Board Loopback (BLB) demand test (#1209) failed.
1. Repeat the test using the 
test ds1-loop UUCSS ds1/csu-loopback-tests
command.
2. If the BLB test continues to fail, then replace the TN767E circuit pack.
3. Run this test again.
1311 FAIL The Integrated CSU (I-CSU) Module Equipment Loopback (ELB) test (#1210) 
failed. This test is executedduring ICSU/T1 Sync Splitter power-up/reset (the 
TN767E board is physically inserted and the CSU Module/T1 Sync Splitter is 
already installed) or when the 120A CSU Module/T1 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.
1. Execute test ds1-loop UUCSS ds1/csu-loopback-tests.
2. If the ELB test continues to fail, then either the TN767E 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 
t
est ds1-loop UUCSS 
ds1/csu-loopback-tests command again.
3. If the ELB test continues to fail, then replace the TN767E board and run 
test ds1-loop UUCSS ds1/csu-loopback-tests 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.
Table 3-239. TEST #138 Loss of Signal Alarm Inquiry Test — Continued
Error 
Code
Tes t 
Result Description/ Recommendation
Continued on next page










