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b. Replace the alarm card. (See additional alarm card functions below.)
1.6 Powering the Load Equipment
If you are required to test the functionality of the rack system, power up each circuit by installing
the correctly rated fuse and examining it for arcing, smoke, etc. Verify that power indicators are lit
on the alarm card and the powered equipment.
ALERT
!
ALERT! Do not use fuses as disconnect devices for powered equipment!
Table 2 - Fuse Alarm Reset Operation - Press button and release
Condition when
pressed
Result of Press
Meaning of result
Normal operating condition
No red LEDs, no remote
alarms activated
No change.
No alarm conditions to reset.
GMT or KLM LED is red
(fuse alarm state)
Fuse alarm LEDs turn OFF.
Alarm relays are cancelled,
return to normal state.
Fuse alarm LEDs change to reset mode
(OFF). Replacing fuse will turn LED
to GREEN.
Power A or Power B LED
is OFF.
No change. Power alarm relay
is still on.
Power A and Power B LEDs are turned
green (normal) only by restoring power.
Power alarm relays are only cleared by
restoring power.
Any condition
All LEDs turn AMBER.
All remote alarm relays switch
to alarm condition. (Notify alarm
center before test!)
This test condition clears whe
button is released - previous
status of all LEDs is restored.
This tests all LEDs and alarm relay cir-
cuits, including the Power A and Power
B LEDs and remote power alarm relays.
Release button to end test and restore
previous condition.
Table 3 - Test Alarm Card Function - Press button for five seconds and hold in
Condition when
pressed
Result of Press
Meaning of result
Any condition
All LEDs turn AMBER.
All remote alarm relays switch to alarm con-
dition. (Notify alarm center before test!)
This test condition clears when button is
released - previous status of all LEDs is
restored.
This tests all LEDs and alarm
relay circuits, including the
Power A and Power B LEDs and
remote power alarm relays.
Release button to end test and
restore previous condition.
