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2.0 System Operation
2.1
System Status LEDs
Alarm, Trouble and Supervisory LEDs will flash on and off until the event(s) has been acknowledged
(TONE or ALARM SILENCE), at which point the LED will illuminate steadily.
AC POWER
Green LED that illuminates steadily to indicate
presence of AC power.
SYSTEM ALARM
Red LED that flashes when an alarm occurs.
RELEASE
Red LED that illuminates steadily when release
occurs.
SUPERVISORY
Yellow LED that flashes upon activation of a
supervisory device (such as tamper switch) on
Output 4 if selected (see section 3.7).
SYSTEM TROUBLE
Yellow LED that flashes for any trouble condi-
tion, including those associated with option
boards.
CIRCUIT TROUBLE
Yellow LED that flashes for trouble conditions
on output circuits (notification and releasing
circuits).
ALARM SILENCED
Yellow LED that illuminates steadily when the
ALARM SILENCE switch has been pushed
after an alarm.
POWER TROUBLE
Yellow LED that flashes for low or disconnected
batteries and earth fault conditions.
BATT
Yellow LED that illuminates steadily on
motherboard when battery is low or not detected
(not visible through door).
EARTH
Yellow LED that illuminates steadily on
motherboard during a ground fault condition (not
visible through door).
MICRO FAIL
Yellow LED that illuminates on motherboard
when watchdog timer detects microprocessor
failure (not visible through door).
Technical Manuals Online! - http://www.tech-man.com
MRP-4424
Document 15180
Rev D
firealarmresources.com
03/12/97
15180:D
11
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