Architect/Engineer Specifications
Loop test/maintenance module shall be
a System Sensor i3 series model num-
ber 2W-MOD2, listed to Underwriters
Laboratories UL 864 for Control Units
for Fire Protection Signaling Systems.
The module shall include provisions for
mounting to 4″-inch square back boxes.
Electrical Specifications
Operating
Nominal:
Min.:
Max.:
Voltage
12/24 V
8.5 V power limited
30 V power limited
Maximum Standby Current
30 mA
Maximum Alarm Current
90 mA
Maximum Maintenance Current
53 mA
Alarm Contact Ratings
0.5 A @ 36VDC, Resistive
Maintenance Contact Ratings
2 A @ 30VDC, Resistive
Wiring connections shall be made by
means of SEMS screws. The module shall
provide three LED indicators which
will blink or illuminate to indicate com-
munication status, maintenance alert,
alarm or freeze trouble conditions, and
EZ Walk loop test mode. The module
shall allow communication to 2-wire
i3 detectors with any UL listed fire alarm
control panel. The 2W-MOD2 shall offer
provisions for Style D wiring on IDC
loops, and shall provide a loop testing
capability to verify the initiating loop wir-
ing.
Maximum Ripple Voltage
30% of applied voltage (peak to peak)
LED Modes
LED Color
Green LED
Status
On
Blinking 1 sec. on / 1 sec. off
Off
Red LED
Yellow LED
On
Blinking 1 sec. on / 1 sec. off
On
Blinking 0.5 sec. on / 0.5 sec. off
Condition
Power on. Detectors on loop do not have communication capability.
Power on. Detectors on loop are communicating normally.
Power not applied or module not in operation.
Detector on loop in alarm.
One or more detector on loop is in need of maintenance or is in freeze trouble.
Loop wiring fault exists.
EZ Walk test mode.
Power Up Sequence for LED Indication
Condition
Initial LED status indication
EZ Walk test available
Duration
2 minutes
6 minutes after reset
Physical Specifications
Operating Temperature Range
14°F–122°F (–10°C to 50°C)
Operating Humidity Range
0 to 95% RH non-condensing
Input Terminals
14–22 AWG
Dimensions
Height: 4.5 inches (114 mm)
Width: 4.0 inches (101 mm)
Depth: 1.25 inches (32 mm)
Weight
8 oz. (225 grams)
Mounting
4-inch square back box
Ordering Information
Model
2W-MOD2
Description
2-wire loop test/maintenance module for 2-wire i3 series standard, sounder, and Form C relay smoke detectors
System Sensor Sales and Service
System Sensor Headquarters
3825 Ohio Avenue
St. Charles, IL 60174
Ph: 800/SENSOR2
Fx: 630/377-6495
www.systemsensor.com
System Sensor Canada
Ph: 905.812.0767
Fx: 905.812.0771
System Sensor Europe
Ph: 44.1403.276500
Fx: 44.1403.276501
System Sensor in China
Ph: 86.29.8832.0119
Fx: 86.29.8832.5110
System Sensor in Singapore
Ph: 65.6273.2230
Fx: 65.6273.2610
System Sensor – Far East
Ph: 85.22.191.9003
Fx: 85.22.736.6580
System Sensor – Australia
Ph: 613.54.281.142
Fx: 613.54.281.172
System Sensor – India
Ph: 91.124.637.1770 x.2700
Fx: 91.124.637.3118
System Sensor – Russia
Ph: 70.95.937.7982
Fx: 70.95.937.7983
© 2003 System Sensor. The company reserves the right to change product specifications without notice.
A05-0349-001•7/03•#1115
SYSTEMSENSOR [ SYSTEMSENSOR ADVANCED IDEAS. ]
