Potter PFC-5000 Series - Manual (Page 29)

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Operation
All alarm inputs are treated in a similar manner. Alarm inputs include non-verifi ed or verifi ed alarms, and water-fl ow alarms.
Activation of any alarm input when the panel is not already in alarm cause the following:
The buzzer sounds steadily •
If fi re drill is active, it is cancelled •
The Common Alarm indicator turns on •
The common alarm relay activates if aux disconnect is not active •
The Auto Signal Silence timer, if confi gured, starts •
The Signal Silence Inhibit timer, if confi gured, starts •
ARM-4 / ARM-8 relays are activated as confi gured, provided that aux disconnect is not active •
Signals and strobes are activated •
Subsequent Alarms when the panel is already in alarm, cause the following:
The buzzer sounds steadily •
If signals have been silenced as a result of the signal silence button or the auto signal silence timer, signals are resounded as •
they were before signal silence, the signal silence indicator is turned off, and the auto signal silence timer, if confi gured, is
restarted
Signals and strobes are activated
•
Circuit Types
The term circuits refers to an actual electrical interface, either initiating (detection) or NAC (signal). The term zone is a logical
concept for a fi re alarm protected area, and will consist of at least one circuit. Often the terms zone and circuit are used
interchangeably, but in this manual the term circuit is used.