Power failure
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Overview
The procedures described below should be performed if the subrack
powering procedure was unsuccessful.
Procedure 1 should be used if the measured voltage at the termination
blocks of the PDP does not lie between -40.5 and -72 V.
Procedure 2 should be used if the PWR ON LED does not light up on
the user panel.
Procedure 3 should be used if the PWR ON LED does not light up on
the fan unit.
Procedure 1
Follow the steps below if the measured voltage at the termination
blocks of the PDP does not lie between -40.5 and -72 V:
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1
Switch off the external battery.
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2
Replace all affected power supply lines between the external battery
and the termination blocks of the PDP. Make sure the cables are tight
afterwards.
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3
Switch on the external battery.
IF ...
THEN ...
the measured voltage does
not lie between -40.5 and
-72 V,
check the external battery.
the measured voltage lies
between -40.5 and -72 V,
END OF STEPS
Installation trouble shooting
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A - 2
Lucent Technologies
365-374-074
Issue a, April 2002
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