101
Indicators, Controls, and Operation
13.5
Pre-Signal Operation
To configure the panel for pre-signal, all alarm inputs must be correlated to one NAC circuit
that is wired to a Notification Appliance in the Control Room that is constantly monitored by an
Operator. Using the FX-2000N Configurator, “Subsequent Alarm” in “Common System Status”
must be correlated to turn on the Remaining NAC circuits in the system. To confirm the alarm
(i.e. subsequent alarm) the operator can press the “General Alarm” button on the panel or
activate a Manual Station in the Control Room.
13.6
Circuit Types
The term
circuits
refers to an actual electrical interface, either initiating (detection) or indicating (signal).
The term
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.
13.6.1
Initiating (Detection) Circuit Type
Note:
Pre-Signal is not permitted to be used in Canada, unless approved by the
AHJ.
Initiating (Detection) Circuit
Type
Description
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 Manual
Stations, smoke detectors attached. Any activation of Manual Stations will result in an
alarm condition in the fire alarm control panel within four seconds. Smoke detectors
will be verified for a real alarm within 60 seconds depending upon the start-up time of
the smoke detectors being used. If four 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. Verified Alarm is not permitted for heat detectors, 4-wire smoke
detectors and smoke detectors with built-in alarm verification. Refer to Appendix D
Alarm Verification for details.
Water-Flow Alarm
An alarm for water-flow sensors. These alarms are identical to normal non-verified
alarms except that any NACs 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 ten 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 the retard operation with any external retarding device;
maximum retard may not exceed 120 seconds.
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Summary of Contents for FX-MNS-6000
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