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9.7 CIRCUIT TYPES:
“Circuits”
refers to an actual electrical interface, either Initiating (Detection) or Indicating (Sig nal).
“Zone”
is a logical
concept for a Fire Alarm Protected Area, and will consist of at least one C ircuit. Often the terms Zon e and C ircuit 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. These alarms are identical to normal Non-Verified Alarms except that any Indicating
Circuits programmed to these circuits (all are by default) are Non-Silenceable. Also, if Water-Flow Retard
Operation is enabled, then 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.
Sprinkler Alarm
=
For Sprinkler Flow Sensors. These alarms are identical to normal Non-Verified Alarms unless Water-Flow
Retard Operation is enabled. If Water-Flow Retard Operation is enabled, then these circuits are sampled every
one second; if 10 samples are active within any 15 second interval, the Sprinkler 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.
General Alarm
=
To provide Remote General Alarm, such as for remoted key-switches. In a Two Stage System these inputs perform
exactly the same function as the Front Panel or Remote Annunciator
General Alarm
button. In a Single Stage
System, these inputs act the same as Non-Verified Alarms, but if Correlations are enabled, General Alarm Initiating
Circuits are correlated to ALL Indicating Circuits.
Non-Latching Supervisory
=
For Supervisory Devices. 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. 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.
Monitor
=
This is a supervised general purpose non-latching input used mainly for correlating to a Relay Circuit. No other
system condition occurs as a result of its activation (short-circuit), although it is supervised for Trouble (open-
circuit).
Trouble-Only
=
This is for monitoring a Trouble Condition from an external device. Both open and short circuits generate a non-
latching Trouble condition.
Indicating (Signal) Circuits Types:
Silenceable Signal
=
For audible devices such as bells and piezo mini-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 Signal
=
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.
Strobe
=
For visual devices such as strobes that use no code pattern (they are continuous).
The possible Audible Signal Codes are ...
Evacuation Codes:
Continuous:
[On 100% of the time]
Temporal Code:
[3 of .5 second on, .5 second off, 1.5 second pause]
March Code:
[.5 second on, .5 second off]
California Code:
[5 second on, 10 second off]
2-Stage:
Alert Code:
[1.75 second on, 4 second off]
General Alarm::
Evacuation Code as selected from above.
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