
ISSUE: 02
No:
DATE:
PAGE:
1of 9
OCTOBER2006
NISM/NAMAS3/02
NAM-AS3 LOOP POWERED
INPUT MODULE
INSTALLATION & TECHNICAL
MANUAL
INTRODUCTION
DESCRIPTION
The NAM-AS3 forms part of the Nittan (UK)'s
SENSORTEC-ANALOGUErangeofAnalogue
AddressableDevices.
Thismoduleisdesignedtoperformalooppowered,
addressable input module function from the detection
signallingloopofananalogue-addressablefiredetec-
tion system.
The NAM-AS3 may be used for a variety of purposes
such as monitoring a 'relay contact input' or monitor the
operationofa'sprinklerflowmonitoringswitch'.
OPERATION
The fire alarm control equipment must be capable of
communicating with the NAM-AS3 input module. If in
doubt, check with panel manufacturer.
The NAM-AS3 is a looppowered,two-wiresignallingde-
vice, it is connected onto the detection signalling loop's
SIG+ and -S wires, exactly as any other 'AS' sensor or
device.
FEATURES
*Monitoringa relay contact input.
*Monitoring the operationofa sprinkler flowswitch.
NAM-AS3 Input Module is made up as
follows:-
1 x Metal enclosure c/w 20mm knockouts
1 x NAM-AS3 PCB c/w internal plastic PCB enclosure
withhingedlid.
1 x Earth point (on lid)
1 x Earth point (inside of enclosure)
1 x 200mm Earth Strap
1 x Label inside lid for product identification and
deviceaddressidentification.
INPUT MODULE NAM-AS3
SENSORTEC-ANALOGUE FAMILY:-
SENSORS:-
ST-I-AS - Analogue Ionisation Smoke Sensor
ST-P-AS - Analogue Photoelectric Smoke Sensor
ST-H-AS -AnalogueHeatSensor
STB-4 - Standard Base for above sensors
DEVICES:-
ST-NCP-AS - AddressableCallPoint
BACK BOX - Back Box for ST-NCP-AS
MCM-AS4-ZoneMonitor/ControlUnit
SCM-AS4-AddressableSounderControlModule
NAM-AS3 - Addressable Input Module
OCM-AS3-OutputControlModule
SCI-5 -Basemounted Short Circuit Isolator
SCI-6 -Plate mountedShort Circuit Isolator
1-Gang Box - Single gang box for SCI-6
ADDRESSABLESOUNDERS:-
VCT-03-AS-NB -AddressableWallSounder
c/wVectorPlate/Cap(R=Red,W=WhitePlate/Cap).
VCT-03-CP(W)-SpareVectorPlate/Cap(White)
VCT-03-CP(R)-SpareVectorPlate/Cap(Red)
VCT-03-NT-AS-AddressableSounderc/wSTB-4Base
pre-wiredtothesounder.
VPR-SA2-NTAS-AddressableSounder,IP65rated,
wallmounted.
www.acornfiresecurity.com
www.acornfiresecurity.com