System Operation; System Status Leds - Fire-Lite Alarms MS-4412B Instruction Manual

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.
Alarm Test - Red LED that illuminates during Walk Test.
Supervisory - Yellow LED that flashes upon activation of a supervisory device (such as tamper switch)
on Zone 4.
System Trouble - Yellow LED that flashes for any trouble condition, including those associated with
optional boards.
Circuit Trouble - Yellow LED that flashes for trouble conditions on output 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.
The following LEDs are located below the main panel and are visible only when the panel door is open.
Battery Fail (
detected.
Ground Fault (
condition.
Micro Fail - Yellow LED that illuminates on motherboard when watchdog timer detects microprocessor
failure.
MS-4412B/MS-4424B Instruction Manual PN 15125:G1 10/22/02

3. System Operation

System
Status
LEDs
BATT EARTH
Figure 20 System Status LEDs
) - Yellow LED that illuminates steadily on motherboard when battery is low or not
BATT
) - Yellow LED that illuminates steadily on motherboard during a ground fault
EARTH
AC POWER
ZONE 1
SYSTEM
ALARM
ALARM TEST
ZONE 2
SUPERVISORY
SYSTEM
TROUBLE
ZONE 3
CIRCUIT
TROUBLE
ALARM
SILENCED
ZONE 4
POWER
TROUBLE
TONE ALARM ALARM SYSTEM
SILENCE SILENCE ACTIVATE RESET
MICRO
FAIL
29