General Description
System Sensor 1012B ionization and 2012B photoelectronic open auxiliary alarm relay is available for controlling
detectors are designed primarily for applications where
low-voltage Class 2 wiring may be used. These detectors
are self-resetting and offer an 85dB alarm horn. An
external push button provides a test of the detectors’
alarm function. Up to 12 units can be interconnected so
that if one detector alarms, all detectors alarm. A normally
external functions. A visible LED indicator flashes once
every 40 seconds in standby and rapidly in alarm when
detecting smoke. The detectors offer low-voltage operation
and a tamper-proof feature. Screw terminals and a
mounting bracket are provided for easy installation.
A77-727-O1
RED
BLACK
BLACK
(+)
12VDC POWER
SUPPLY
12OVAC
GRAY
(–)
POWERS UP TO
16 DETECTORS
(+) (–)
(+) (–)
(+) (–)
POWER INPUT
POWER INPUT
POWER INPUT
AUXILIARY
AUXILIARY
AUXILIARY
(+) (–)
POWER INPUT
(+) (–)
POWER INPUT
(+) (–)
POWER INPUT
AUXILIARY ALARM RELAY
AUXILIARY
AUXILIARY
AUXILIARY
INTERCONNECT UP TO
12 DETECTORS
WIRE
GAUGE
14AWG
16AWG
18AWG
6 UNITS 7 UNITS 8 UNITS 9 UNITS 10 UNITS11 UNITS 12 UNITS
1 UNIT 2 UNITS 3 UNITS 4 UNITS 5 UNITS
990
622
391
848
533
335
742
466
293
660
415
261
594
373
234
540
339
213
495
311
195
5000
3735
2349
2970
1867
1174
1980
1245
783
1485
933
587
1188
747
469
MAXIMUM POWER BUS LENGTH IN FEET. GIVEN NUMBER OF
UNITS (MAXIMUM PER BUS) AND WIRE SIZE.
MAXIMUM INTERCONNECT BUS LENGTH:
5,000 FT. NO. 18AWG OR LARGER DUAL CONDUCTOR CABLE.
ALL WIRING MUST CONFORM TO LOCAL ELECTRICAL CODES.
RELAY CONTACTS RATING: 0.5A 30VDC; 0.5A 30VAC
1012B/2012B Wiring Diagram
Ordering Information
Part No.
1012B
Description
A77-727-01 12 VDC power supply, mounts to a 4″ square box,
21/
″ deep
Ionization smoke detector with relay, 12 VDC,
multiple station
8
2012B
Photoelectronic smoke detector with relay, 12 VDC,
multiple station
System Sensor Worldwide Distribution
In the Far East:
System Sensor
In Canada:
In the United Kingdom:
System Sensor Europe, Ltd.
Horsham Gates III, North St.
Horsham, West Sussex
RH13 5PJ, United Kingdom
Telephone: 44-1403-276500
Fax: 44-1403-276501
In India:
System Sensor India
A-204 Maheshwari Nagar
Orkay Mills Lane
Andheri East, Mumbai 400093
Telefax: 91-022-8202564
System Sensor Canada
6581 Kitimat Road, Unit #7
Mississauga, Ontario
Canada L5N 3T5
Telephone: 905-812-0767
Fax: 905-812-0771
Pittway Far East, Ltd.
Suite 706, New T&T Centre
7 Canton Road
Tsimshatsui, Kowloon, Hong Kong
Telephone: 852-2730-9090
Fax: 852-2736-6580
A05-238-02
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