DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-571DS1-BD (DS1 Interface Circuit Pack)
9
120A1 CSU Module already installed) or when the 120A1 CSU Module is
plugged on t o an already initialized DS1 board. 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 follo wing commands: busyout board
UUCSS, test ds1-loop UUCSS ds1/csu-loopback-tests, and release
board UUCSS. If the ELB test continues to fail, then either the TN767E
board, the CSU Module, or the I/O c able between the bac kplane and the
CSU module (or any combination thereof) has failed . Attempt to isolate
where the failure is occurring b y re-executing the test b y replacing one
piece of hardware at a time.
n. RLB failure. This error occurs when the Integrated CSU (I-CSU) Module
Repeater Loopback (RLB) test fails. This test is exec uted by the I-CSU
during I-CSU power-up/reset (i.e., TN767E board physically inserted and
120A1 CSU Module already installed) or when the 120A1 CSU Module is
plugged on t o an already initialized DS1 board. 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 follo wing commands: busyout board
UUCSS, test ds1-loop UUCSS ds1/csu-loopback-tests, and release
board UUCSS. If the RLB test continues to fail, then the CSU Module
needs to be replaced.
o. CPE Loopback Jack deac tivation error. This error occurs when the
TN767E circuit pack could not deactivate a CPE Loopbac k Jack
loopback.
Attempt to clear the alarm via the follo wing commands: busyout board
UUCSS, test ds1-loop UUCSS end-loopback/span-test, and release
board UUCSS. If the attempt to deact ivate the CPE Loopback Jack
loopback c ontinues to fail, other steps must be tak en to deactivate the
loopback.
p. Far CSU Loopback deac tivation error. This error occurs when the TN767E
circuit pack c ould not deactivat e a far-end CSU loopback on
power-up/reset or upon software request .
Attempt to clear the alarm via the follo wing commands:
busyout board
UUCSS
,
test ds1-loop UUCSS end-loopb ack/span-test
,
release board
UUCSS
. If the attempt to deactivate the Far CSU loopback continues to
fail, then escalate the problem.
q. The hyperactive circ uit pack is out-of-servic e and may exhibit one or more
of the following symptoms:
1. The common circuit pack level tests such as Test #51 and/or Test
#220 are aborting with error cod e 2000.
2. The tests run on the ports of this circuit p ack are returning NO
BOARD.
3. A busy-out/release of the circuit p ack has no affect on test results.