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Troubleshooting
Troubleshooting Table
Table 4-1.
8610-A2-GN20-10
Troubleshooting (1 of 2)
Symptom
Possible Cause
Either the PWR A
Failure in a single chassis
or PWR B LEDs,
within a stack.
or both, are OFF.
No power.
Fan Alarm LED is
Fan failure.
ON
System Alarm
SYSTEM ALM LED is ON
LED is ON (on a
and DSL card is inoperative
in Slot n .
DSL card)
April 2001
4
Solutions
1. To clear the power alarm, remove
the power from the chassis and
disconnect the powered-off chassis
from the management daisy chain
(bypassing the failed chassis).
2. Using a voltmeter, check for power
at the terminal connections.
– If there is power, call your sales
representative for service.
– If there is no power at the
terminal, call the appropriate
electrician.
Go to the stack to see which chassis is
reporting the fan alarm. To clear the
fan alarm, contact your service
technician to replace the Hotwire 8610
DSLAM chassis.
1. Choose Card Selection from the
Main Menu to display the status of
each DSL card.
2. If a major alarm is indicated, reset
the MCP card (A-A-F). Then, reset
the DSL card (A-A-E).
3. Remove and reinstall the card.
I
4.
f unable to clear by resetting the
card, replace the card.
4-1
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