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9.6 Common Relays
9.6.1 Auxiliary Alarm Relay
The Auxiliary Alarm Relay functions the same way as the Common Alarm Relay in every
respect except that it can be disconnected by Auxiliary Disconnect with or without other
correlated relays if it is programmed to do so (see section 11.0 on page 60). When configured,
the relay can also be disconnected if signal silence is active and reconnected if signal silence
is de-activated.
9.6.2 Common Alarm Relay
The Common Alarm Relay activates when the common alarm sequence is activated. On a
two-stage system the relay may be configured to operate either on the first stage or both the
first and second stage alarm (see section 11.0 on page 60). The common alarm relay is
disconnected by Auxiliary Disconnect if programmed (see section 11.0 on page 60). The relay
remains on until the SYSTEM RESET button is pressed.
9.6.3 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 Auxiliary Disconnect
if programmed (see section 11.0 on page 60). The relay functions the same way as an alarm
relay if the supervisory relay is disabled (see section 11.0 on page 60).
9.6.4 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.
9.7 Circuit Types
9.7.1 Initiating (Detection) Circuit Types
9.7.2 Non-Verified Alarm
A Non-Verified alarm can have pull stations, smoke detectors, or heat detectors attached to it.
Activation of any of these devices immediately results in an alarm condition in the Fire Alarm
Control Panel. An Alarm condition causes the associated Circuit Status LED and the
COMMON ALARM LED to illuminate red.
Note: Some troubles are latching: once they are detected they remain active until the
SYSTEM RESET button is pressed. In this case the common trouble indicator
also remains active until the SYSTEM RESET button is pressed. The common
trouble is not bypassed by the Auxiliary Disconnect function.
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