DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
LED Interpretation
7-4Expansion Interface Circuit Pack LEDs
7
■ Misconnected optical fiber cables may cause several circuit packs to
alarm.
■ Packet bus faults can cause several port circuit packs to display red
LEDs.
If a circuit pack has had at least five minutes to be initialized, and the red LED is
lit without an associated alarm in the Alarm Log, the circuit pack may not be in
communication with the system. This may also be the case when a circuit pack is
properly administered and present in its slot, but there is an error type 1 logged
against it. To determine if this is so, proceed as follows:
■ Issue the
list configuration board
UUCSS command. If the system does
not detect the circuit pack, this command will return
identifier not assigned
or
no board
.
If the documentation for the associated maintenance object gives no
special instructions for this situation, go to the next step.
■ Check the Hardware Error Log for TONE-BD or TDM-BUS errors. Use the
test tdm
and
test tone-clock
commands and use the appropriate
maintenance procedures to resolve any identified faults. If this does not
resolve the problem, go to the next step
■ Reseat the suspect circuit pack.
!
CAUTION:
This procedure can cause a partial or total service outage. Consult
thoroughly the documentation for the associated maintenance object
before proceeding. Observe the precautions and procedures
described above.
■ Inspect the backplane connectors for bent pins.
■ If the system seems to be functioning correctly, but the circuit pack in
question will not communicate with the system, replace the circuit pack.
Expansion Interface Circuit Pack LEDs
The Expansion Interface (EI) TN570 circuit pack has the standard red, green and
yellow LEDs. The red and green LEDs have the traditional meaning, where red
indicates an alarm condition, and green indicates testing in progress.
