Avaya Definity SI Maintenance Manual page 1479

DS1-BD (DS1 Interface Circuit Pack)
ICSU Status LEDs Test (#1227)
The TN767E DS1 circuit pack has four status LEDs on the faceplate in addition to
the three standard faceplate LEDs. These four status LEDs are associated with
the 120A1 Channel Service Unit (CSU) Module that can be connected to the
TN767E board via the I/O connector panel on the back of the port carrier.
This test is a visual test. It will light the four status LEDs red for 5 seconds, then
light them green for 5 seconds, then light them yellow for 5 seconds, then turn the
LEDs off and returns control of the status LEDs to the circuit pack.
This test will only be executed on TN767E or later suffix DS1 circuit packs
administered for 24-channel operation (1.544 bit rate).
If the 1201 CSU Module/T1 Sync Splitter is not installed, the status LEDs are
always off and this test aborts.
Table 10-252. TEST #1227 ICSU Status LEDs Test
Error
Code Result
ABORT
1005 ABORT
1951 ABORT
2100 ABORT
555-233-123
Test
Internal system error
1. Retry the command at 1-minute intervals a maximum of 5
times.
The ICSU Status LEDs test can not be executed for the current
configuration. The test applies only to TN767E or later DS1
circuit packs administered for 24-channel operation (1.544 bit
rate).
1. If the circuit pack is a TN767E or later suffix DS1 circuit pack,
then retry the command.
The ICSU Status LEDs Test can not be executed because a
120A1 or later suffix CSU Module or a 401A or later suffix T1
Sync Splitter is not physically installed. If using a 120A1 CSU
Module/T1 Sync Splitter, physically connect it to the TN767E
board on the back of the port carrier otherwise, ignore this abort.
Could not allocate the necessary system resources to run this
test.
1. Retry the command at 1-minute intervals for a maximum of 5
times.
Description/Recommendation
Continued on next page
Issue 4 May 2002 10-693