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9.4 CIRCUIT TYPES:
“Circuits”
refers to an actual electrical interface, either
Initiating
(Detection) or
Indicating
(Also
referred to as Notification Appliance, Signal or Bell).
“Zone”
is a logical concept for a Fire 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.
Initiating (Detection) Circuit Types:
Non-Verified Alarm
=
This is a “Normal” type of Alarm which may have Pull-Stations, Smoke Detectors,
or Heat Detectors attached. Any activation of these devices will immediately result
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.
Verified Alarm
=
These Alarms are verified by a reset and timing procedure, and may have Pull-
Stations, Smoke Detectors, or Heat Detectors attached. Any activation of Pull-Stations
or Heat Detectors will result in an Alarm condition in the Fire Alarm Control Panel
within 4 seconds. Smoke Detectors will be verified for a real Alarm within 60 seconds
depending upon the startup time of the Smoke Detectors being used. If 4 seconds is
too long a response time for Pull-Stations, then they should be wired separately on a
Non-Verified Alarm Circuit. An Alarm condition causes the associated Circuit Status
LED and the Common Alarm LED to illuminate Red.
Water-Flow Alarm
=
For Water-flow Sensors (Circuits 3 & 7 only). These alarms are identical to normal
Non-Verified Alarms except that Indicating Circuits are Non-Silenceable. Water-Flow
Retard Operation is enabled if “Verified” is selected. With Retard active, these circuits
are sampled every one second; if 10 samples are active within any 15 second interval,
the Water-Flow Alarm is confirmed and processed. An Alarm condition causes the
associated Circuit Status LED and the Common Alarm LED to illuminate Red.
Note:
Do not use Retard Operation with any external Retarding device; maximum
Retard may not exceed 120 seconds.
Non-Latching Supervisory
=
For Supervisory Devices (Circuits 4 & 8 only). An activation on these circuits
will cause the Circuit Status LED and the Common Supervisory LED to
illuminate Amber. The buzzer will sound continuously. If the circuit activation
is removed, the Supervisory condition will clear (so long as there are no other
Supervisory conditions in the system) and the Circuit Status LED will
extinguish.
Latching Supervisory
=
For Supervisory Devices (Circuits 4 & 8 only). An activation on these circuits will
cause the Circuit Status LED and the Common Supervisory LED to illuminate
Amber. The buzzer will sound continuously. If the circuit activation is removed, the
Supervisory condition will NOT clear.
Indicating (Signal) Circuits Types:
Silenceable Audible
=
For audible devices such as bells and horns that may be silenced either manually
or automatically. While sounding, these follow the pattern appropriate for the
condition; the configured Evacuation Code (default is Temporal Code) during
Single-Stage Alarm, or Two-Stage General Alarm, or the Alert Code during Two-
Stage’s Alert (First) Stage.
Non-Silenceable Audible
=
For audible devices such as bells and piezo mini-horns that may not be silenced
either manually or automatically. While sounding, these follow the pattern
appropriate for the condition; the configured Evacuation Code (default is Temporal
Code) during Single-Stage Alarm, or Two-Stage General Alarm, or the Alert Code
during Two-Stage’s Alert (First) Stage.
Silenceable Visual
=
For visual devices such as strobes that use no code pattern (they are continuous).
Non-Silenceable Visual
=
Same as previous, but is non-silenceable.
The possible Audible Signal Codes are ...
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