Filter
Top Products
DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-1181UDS1-BD (UDS1 Interface Circuit Pack)
3
n. BLB failure. This error occurs when the DS1 Board Loopback (BLB)
demand test fails. Repeat the test using the following commands:
busyout
board UUCSS
,
test ds1-loop UUCSS ds1/csu-loopback-tests
,
release
board UUCSS
. If the BLB test continues to fail, then the TN464F circuit
pack needs to be replaced.
o. ELB failure. This error occurs when the Equipment Loopback (ELB) test
fails for the Integrated CSU (I-CSU) Module/T1 Sync Splitter or for the
402A or 403A E1 Synchronization Splitter. This test is executed by the
I-CSU/E1SS during I-CSU/E1SS power-up/reset (i.e.- TN464F board
physically inserted and 120A1 CSU Module or the 401A T1 Sync Spliltter,
or the 402A or 403A E1SS is already installed) or when the 120A1 CSU
Module or the 401A T1 Sync Spliltter, or the 402A or 403A E1SS is
plugged on to an already initialized TN464F DS1 board.
NOTE:
For the
I-CSU/T1 Sync Splitter only
, the ELB test is also executed
as part of the command
test ds1-loop UUCSS
ds1/csu-loopback-tests
. Attempt to clear the alarm via the following
commands:
busyout board UUCSS, test ds1-loop UUCSS
ds1/csu-loopback-tests, release board UUCSS
. If the ELB test
continues to fail, then either the TN464F 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 where the failure is
occurring by re-executing the test and by replacing one piece of
hardware at a time.
p. RLB failure. This error occurs when the Repeater Loopback (RLB) test fails
for the Integrated CSU (I-CSU) Module/T1 Sync Splitter or for the 402A or
403A E1 Synchronization Splitter. This test is executed by the I-CSU/E1SS
during I-CSU/E1SS power-up/reset (i.e.- TN464F board physically inserted
and 120A1 CSU Module or the 401A T1 Sync Spliltter, or the 402A or 403A
E1SS is already installed) or when the 120A1 CSU Module or the 401A T1
Sync Spliltter, or the 402A or 403A E1SS is plugged on to an already
initialized DS1 board.
NOTE:
For the
I-CSU/T1 Sync Splitter only
, the RLB test is also executed
as part of the command
test ds1-loop UUCSS
ds1/csu-loopback-tests
. Attempt to clear the alarm via the following
commands:
busyout board UUCSS, test ds1-loop UUCSS
ds1/csu-loopback-tests, release board UUCSS
. If the RLB test
continues to fail, then the CSU Module needs to be replaced.
q. CPE Loopback Jack deactivation error. This error occurs when the
TN464F circuit pack could not deactivate a CPE Loopback Jack on
power-up/reset or upon software request.