Indicators, Controls and Operations
26
Lamp Test Button
Activation of the Lamp Test button causes all front panel Indicators to steadily illuminate and turns the buzzer ON
steady. If Lamp Test is active for more than 10 seconds, Common Trouble is activated. The lamp test for CPU Fail
LED is during power up.
Buzzer Silence Button
Activation of the Buzzer Silence button while the Buzzer is sounding silences the Buzzer. The Buzzer will resound if
there is a subsequent event. Pressing the button when the Buzzer is not sounding has no effect.
Circuit (zone) disconnect buttons
Circuit (Zone) Disconnect pushbuttons are provided for all initiating and indicating circuits on the Fire Alarm Control
Panel. These pushbuttons are located beside their respective indicating LED.
Pressing a Circuit Disconnect pushbutton bypasses the associated circuit and turns on its Trouble Indicator,
activating Common Trouble. While a Circuit is disconnected, all changes in status (alarms and troubles) on that
circuit are ignored. The panel does not activate disconnected indicating circuits. Circuit Disconnect pushbuttons are
toggle switches; therefore, pressing an activated switch a second time will un-bypass (reconnect) the circuit.
Disconnecting an active Latching Initiating Circuit (including Alarms, Water flow Alarm, Sprinkler Alarm, General
Alarm, and Latching Supervisory) does not affect its status until the panel is reset. Disconnecting an active Non-
Latching Initiating Circuit (including Non-Latching Supervisory and Trouble-Only) causes them to behave as if the
alarm situation has disappeared. Disconnecting an active indicating circuit immediately deactivates the circuit.
When an Initiating Circuit Disconnect pushbutton is returned to the normal state (by pressing it again in order to un-
bypass the circuit), the panel checks the state of the circuit. If the bypassed input circuit is active and the Bypass
Switch is pressed for un-bypassing, the Alarm LED will flash at the fast flash rate for 10 seconds. During these 10
seconds, pressing the Bypass Switch can bypass the active input circuit again. After 10 seconds, the bypassed
alarm will be processed.
Disconnect pushbuttons are also used during
Walk-Test
as described in the System Checkout
section.
Common Relays
Common Alarm Relay
The Common Alarm Relay activates when the common alarm sequence is activated. The common alarm relay is
disconnected by aux disconnect if programmed (see Configuration section). Since all alarm conditions are latched
until system reset, the relay will remain ON until the alarm is cleared and the system is reset.
Common Supervisory Relay
The Common Supervisory Relay activates when the common supervisory sequence is activated as the result of an
alarm on any un-bypassed latching or non-latching supervisory circuit. The relay is turned OFF if all non-latching
supervisory circuits are restored and there are no latching supervisory circuits active. The relay can be disconnected
by aux disconnect if programmed (see Configuration section). The relay will function the same way as an alarm
relay if the supervisory relay is disabled
(
see Configuration section
).
Common Trouble Relay
The Common Trouble relay is activated when the common trouble sequence is activated as the result of the trouble
condition being detected on the system. It is turned off when all troubles are cleared.
Note:
Some troubles are latching once they are detected they remain active until system reset. In this case
the common trouble indicator will also remain active until system reset. The common trouble is not
bypassed by the auxiliary disconnect function.