User Manual

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3.0 The Buzzer and LED Indicators
Figure 2 LED Indicators
3.1 Buzzer
The buzzer sounds if there is a fire alarm, a supervisory alarm, or a trouble in the fire alarm
system. It turns off if the condition causing the buzzer to sound is cleared or if the BUZZER
SILENCE button is pressed.
3.2 A.C. On LED
The green A.C. On LED illuminates steadily as long as the main power is above minimum
level. The indicator turns off when the level falls below the minimum level and the panel
switches to standby (battery) power.
3.3 Alarm LED
The red Alarm LED illuminates steadily when there is a fire alarm. This indicator will remain on
until the system is reset.
3.4 Supervisory LED
The amber Supervisory LED illuminates at the fast flash rate when there is a supervisory
alarm in the fire alarm system. For non-latching supervisory alarms, the SUPV LED will turn off
when the condition causing the alarm goes away. For latching supervisory alarms, this LED
remains on until the panel is reset.
3.5 Trouble LED
The Trouble LED flashes amber at the trouble flash rate when the panel detects any trouble
condition. For non-latching trouble conditions, the Trouble LED turns off when the condition
causing the alarm goes away. For latching trouble conditions, the LED remains on until the
panel is reset.
3.6 CPU Fail LED
The CPU Fail LED flashes amber at the trouble flash rate to indicate a microprocessor failure
on the main board.
A.C. ON ALARM SUPV TRBL CPU FAIL
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