MS-4412B/MS-4424B Instruction Manual PN 15125:G1 10/22/02
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3. System Operation
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.
Figure 20 System Status LEDs
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 (
BATT
) -
Yellow LED that illuminates steadily on motherboard when battery is low or not
detected.
Ground Fault (
EARTH
) -
Yellow LED that illuminates steadily on motherboard during a ground fault
condition.
Micro Fail -
Yellow LED that illuminates on motherboard when watchdog timer detects microprocessor
failure.
TONE
SILENCE
ALARM
SILENCE
ALARM
ACTIVATE
SYSTEM
RESET
AC POWER
SYSTEM
ALARM
ALARM TEST
SUPERVISORY
SYSTEM
TROUBLE
CIRCUIT
TROUBLE
ALARM
SILENCED
POWER
TROUBLE
ZONE 1
ZONE 2
ZONE 3
ZONE 4
M
S
44
-pan
el
1.
cdr
BATT EARTH
MICRO
FAIL
System
Status
LEDs
