LEDs
A-2
8800-A2-GN21-20
October 1997
The following table describes the meaning and states of the LEDs on the front
panel of the chassis.
Type
LED
LED is . . .
Indicating . . .
Mounting
– 48V Power A
Green
Off
Normal operation for Power Source A.
Low or no voltage for Power Source A.
– 48V Power B
Green
Off
Normal operation for Power Source B.
Low or no voltage for Power Source B.
Fan System
Alarm
Yellow
Off
Fan failure or a single fan in the Fan
Module is working at less than 50% of its
normal output.
Normal operation or no power to
mounting.
Major Alarm
Yellow
Off
Major alarm present in the chassis
(controlled by the MCC).
The card with alarm conditions will also
have its Alarm LED lit.
No major alarms.
Minor Alarm
Yellow
Off
Minor alarm present in the chassis
(controlled by the MCC).
The card with alarm conditions will also
have its Alarm LED lit.
No minor alarms.