Lucent Technologies LambdaUnite Installation Manual page 270

Power Failure
....................................................................................................................................................................................................................................
7 - 4
IF ...
the PWR ON LEDs do not
light up on the Fan Units,
the PWR ON LEDs light
up on the Fan Units,
E S
N D O F T E P S
.........................................................................................................................................................................................................................................................
Lucent Technologies
Installation Troubleshooting
THEN ...
switch all circuit breakers on the
subrack backplanes to the OFF
position and replace all affected Fan
Units.
END OF STEPS
365-374-059
Issue a, January 2002