EQUIPMENT OVERTEMPERATURE ALARM SYSTEM (Continued)

TM 9-6920-737-10

EQUIPMENT OVERTEMPERATURE ALARM SYSTEM (Continued)

The SPC Overtemperature indicator (7) indicates an overtemperature condition in one of the SPC cabinets. The SPC

Power Management Panel contains four additional overtemperature indicators (8) to pinpoint the problem to one of the

four SPC logic card file assemblies.

An AUDIBLE ALARM buzzer (9) on the Communication Panel alerts the Instructor/Operator of an overtemperature

condition. He may silence the alarm by pressing the SILENCE pushbutton (10), but the overtemperature light will remain

on until the problem is corrected.

TEST pushbutton (11) allows the Instructor/Operator to test the buzzer and verify that it is operable.

Additional overtemperature sensors in the SPC will shut off the SPC subcircuit breaker in the Electronics Power

Distribution Panel if the temperature approaches a hazardous level.

Overtemperature sensors in the ceilings of the Computer Shelter and Trainer Shelter are connected into the fire

protection system (see 1-39).

Change 2 1-42