Indicators, Controls, and Operation
54
Single Stage Operation
In a single stage system, all alarm inputs are treated in a similar manner. Alarm inputs include any of the following:
non-verified alarm, verified alarm, sprinkler alarm, water-flow alarm, and general alarm circuits. Any of these alarm
inputs occurring when the panel is not already in alarm cause the following:
• The buzzer sounds steadily
• If fire drill is active, it is cancelled
• The Common Alarm LED turns on
• The Common Alarm relay activates if Aux disconnect is not active
• The Auto Signal Silence timer, if configured, starts
• The Signal Silence Inhibit timer, if configured, starts
• All non-disconnected indicating programmed to the input are activated provided that Aux disconnect is not
active
• Non-disconnected strobes associated with the input are activated
• Non-disconnected signals associated with the input are activated at the evacuation rate
Subsequent alarms when the panel is already in alarm, cause the following:
• The alert buzzer sounds steadily
• If Signals have been silenced, they are resounded, the Signal Silence LED turns off, and the Auto Signal
Silence timer, if configured, is restarted
• Any additional non-disconnected strobes associated with the input are activated continuously
• Any additional non-disconnected signals associated with the new input are activated at the evacuation rate
Two Stage Operation
In a two stage system, alarm inputs are either first stage (alert) inputs or second stage (general alarm) inputs. First
stage inputs include inputs from the following types of circuits: non-verified alarm, verified alarm, sprinkler alarm,
and water-flow alarm. Second stage inputs include alarms on the general alarm circuits, activation of the General
Alarm button, or expiration of the Auto General Alarm timer. Any of these alarm inputs occurring when the panel is
not already in alarm cause the following:
• The buzzer sounds steadily
• If fire drill is active, it is cancelled
• The Common Alarm LED turns on
• The Common Alarm relay activates if Aux disconnect is not active
• The Auto Signal Silence timer, if configured, starts
• The Signal Silence Inhibit timer, if configured, starts
• All Non-disconnected indicating programmed to the input are activated provided that Aux disconnect is not
active
If the alarm is a second stage alarm,
• All non-disconnected strobe circuits are activated continuously
• All non-disconnected signal circuits are activated at the evacuation rate
• The General Alarm LED turns on.
If the alarm is a First Stage alarm,
• Non-disconnected strobe circuits programmed to that circuit are activated continuously
• Non-disconnected signal circuits programmed to that circuit are activated with the alert code
• The Auto General Alarm timer, if configured, starts
• The Acknowledge LED starts flashing.
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