25
Operation
All alarm inputs are treated in a similar manner. Alarm inputs include non-veri
fi
ed or veri
fi
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 con
fi
gured, starts
•
The Signal Silence Inhibit timer, if con
fi
gured, starts
•
ARM-4 / ARM-8 relays are activated as con
fi
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 con
fi
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.
