Securitron FAR-24, FAR-12, CFAR-12, CFAR-24 User Manual

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SECURITRON MODEL FAR-12, FAR-24, FIRE ALARM RESET MODULE

INSTALLATION INSTRUCTIONS

1. DESCRIPTION

Securitron’s Fire Alarm reset module interconnects with a Securitron BPS series power supply
and a fire alarm (made by others). The purpose is to provide additional safety and control in
an installation where activation of the fire alarm is intended to switch off the BPS power supply.
This is often done to release power to magnetic locks which are installed on perimeter doors so
as to permit safe evacuation in the event of a fire. The module has three specific functions:

 It will maintain the released condition of devices released by activation of the fire alarm even

after the fire alarm resets and until the module itself is reset by key.

 It allows key controlled release of the same devices (separate from the fire alarm control).
 It signals the released or “normal” condition of the devices via a bicolor led.

2. WIRING
FIG. 1: INTERWIRING BETWEEN FIRE ALARM, POWER SUPPLY AND FAR

FAR-12, 24

BE SURE THE VOLTAGE OF THE

FAR MATCHES THE VOLTAGE

F1
F2
R#

BPS POWER

SUPPLY

F1
F2
FA
FA

-

TERMINAL

STRIP

OF THE POWER SUPPLY

C

NC

FIRE ALARM

INTERFACE

(LATCHING

AUXILIARY
INSURE WIRE GAUGE THICKNESS IS SUFFICIENT TO
CONDUCT FULL OUTPUT OF POWER SUPPLY

Note that the designation “R#” in the power supply refers to any of the common DC negative
terminals marked “R” in that unit and be sure that the gauge wire you select to make the above
connections is sufficiently thick to handle the full output current of the power supply. Also, a

UL listed auxiliary latching relay with NC contacts of sufficient capacity to handle the
full output of the power supply must be furnished as part of the fire alarm system (by the

fire alarm system contractor).

3. OPERATION

Note that when first connected, the red LED on the FAR will be illumined and the devices
connected to the system will be in the released condition (no power received). W hen the key is
turned in the “reset” direction, the green LED will come on and the devices will receive power.
The action of turning the key in the reset direction sets a relay interlock in the FAR.

At any later time, when the fire alarm activates, power to the devi ces will be immediately cut by
the fire alarm auxiliary latching relay. The power is cut in a second place in the circuit by the
FAR’s internal relay which drops out. This will also happen if power is momentarily
interrupted for any reason. For example, in a system where battery backup is not being
employed, a momentary failure of building line voltage will drop out the FAR’s relay interlock.
The red LED will come on (when power resumes) and power will be denied to the devices until
the key is turned in the reset direction.

RELAY)

© Copyright, 2011, all rights reserved PN# 500-14100
Page 1 Rev. D, 07/11

The FAR can also be employed to manually cut off power. Momentarily turning the key in the
off direction will drop out the relay interlock, cut pow er and illuminate the red LED. Power to the
devices is restored by turning the key in the reset direction.

Finally, note that the FAR is delivered with a US type 1¼” mortise cylinder. This cylinder can
typically be re-keyed to accept keys which are already in use in the facility if desired, by a local
locksmith.

FIG 2: FRONT PANEL OF FAR

GREEN=NORMAL
RED=DEVICES RELEASED

1 1/4" RE-KEYABLE MORTISE CYLINDER:
RESET AND OFF FUCTIONS ARE
PERFORMED DEPENDING ON
DIRECTION OF KEY TURN

BI-COLOR

LED

OFF

RESET

CAM LOCK MAY BE
INSTALLED IN THIS

KNOCK-OUT

SECURITRON

PN# 500-14100
Page 2 Rev. D, 07/11