Lucent Technologies LambdaUnite Installation Manual page 269

Power Failure
Procedure 2
Procedure 3
....................................................................................................................................................................................................................................
365-374-059
Issue a, January 2002
Follow the steps below if the PWR ON LEDs do not light up on
the user panels:
............................................................................................................................................................
Switch all circuit breakers on the subrack backplanes to the OFF
1
position.
............................................................................................................................................................
Replace all affected shelf power cables between the PDP and the
2
power connectors of the Power Interface Units (PIUs). Make sure that
the cables are tight afterwards.
..........................................................................................................................................................
Switch all circuit breakers on the subrack backplanes to the ON
3
position.
IF ...
the PWR ON LEDs do not
light up on the user panels,
the PWR ON LEDs light
up on the user panels,
E S
N D O F T E P S
............................................................................................................................................................
Follow the steps below if the PWR ON LEDs do not light up on
the fan units:
............................................................................................................................................................
Switch all circuit breakers on the subrack backplanes to the OFF
1
position.
............................................................................................................................................................
Replace all affected fan power cables between the PIUs and the Fan
2
Units. Make sure that the cables are tight afterwards.
..........................................................................................................................................................
Switch all circuit breakers on the subrack backplanes to the ON
3
position.
Lucent Technologies
Installation Troubleshooting
THEN ...
switch all circuit breakers on the
subrack backplanes to the OFF
position and replace all affected PIUs.
END OF STEPS
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