FBD-2
8
Part Number 18165, A, 04/03/2023
3. User Manual
The FBD-2 fire alarm panel provides fire detection and alarm functionality.
Operation
The unit is always operational when powered. During normal operation the “OK” LED should be
on to indicate the zone is working properly.
The “FAULT” LED will blink, and an audible alarm will be generated when a fault is detected on a
zone. There are two fault situations:
Short:
There is a short in the zone cabling. The FBD-2 removes the power from the zone and indicates a
fault situation. When the “SILENCE” button is pressed the alarm will be muted, the “FAULT” LED
will light up without blinking and the “OK” LED will blink for one minute. After a minute the zone
will turn back on. A new fault will be generated if the short persists. A fault will not be generated
when the unit is configured for “short circuit as alarm”, a fire alarm will be generated instead.
Note that when a key switch is present, the alarm can only be accepted when the key is turned to
the closed position.
Open Circuit:
The EOL resistor is no longer detected. This indicates there is a break in the zone loop. When the
“SILENCE” button is pressed the alarm will be muted and the “FAULT” LED will light up without
blinking. When the EOL resistor is detected the “OK” LED will turn on and the zone will be
operational again once the “SILENCE” button has been pressed again.
Silence Button
Pressing the “SILENCE” button will accept and mute alarms, fire alarms can only be accepted if the
key is in the closed position or bridged.
When a fire is detected the “FIRE” LED will light up and an audible alarm will be generated. If the
fire alarm is accepted but still active after 2 minutes, the alarm will return.
Dimming Button
The front LEDs can be dimmed to preserve night vision. Press and hold the “DIM” button until the
LEDs reach the desired brightness. The “FAULT” and “FIRE” LEDs will not be dimmed for safety.
Test Button
The “TEST” button can be pressed to test the LEDs. Pressing the “TEST” button for 30 seconds will
also activate the buzzer and alarm and fault outputs.
Power LED
The “POWER” LED blinks green while the unit is in operation normally. If one of the power
supplies fails, the “POWER” LED will light up red.
4. Maintenance
The FBD-2 unit is maintenance free. It is permitted to clean the front of the FBD-2 unit with a
damp cloth.
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