Mircom i3 SERIES 2-Wire Loop Test-Maintenance Module Owner’s Manual

: June 9, 2024
: Mircom

Table of Contents

Mircom i3 SERIES 2-Wire Loop Test-Maintenance Module
Description
Features
Engineering Speciﬁcations
Mounting
Electrical Specifications
LED Modes
Power Up Sequence for LED Indication
Physical Speciﬁcations
Ordering Information
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Mircom i3 SERIES 2-Wire Loop Test-Maintenance Module

Description

The 2W-MOD2 two-wire loop test/maintenance module maximizes the benefits of the i3™ series smoke detectors, by offering detector remote maintenance signaling and EZ Walk loop testing capabilities.

Installation Ease
The 2W-MOD2 mounts to a 4”-square back box for quick and easy installation. Terminal blocks with durable SEMS screws assure a reliable connection.

Intelligence
The 2W-MOD2 allows communication to 2-wire i3 detectors with any listed ﬁ re alarm control panel. This in turn enables i3 detectors to initiate a remote maintenance signal when they are in need of cleaning, and to provide a visual indication of this condition at the module and at the panel. The 2W-MOD2 also features the EZ Walk loop test for 2-wire i3 series detectors. This function veriﬁ es the entire initiating loop wiring with just the press of a button.

Instant Inspection
The 2W-MOD2 includes three LEDs — green, red, and yellow — that provide status indication for the loop. These LEDs indicate the following:

Loop communication status
Maintenance alert
Alarm
Freeze trouble
EZ Walk test enabled
Wiring fault

Features

Allows all 2-wire i3™ detectors to be used on any compatible 2 or 4-wire ﬁ re alarm control panel
Interprets the i3 remote maintenance signal
Provides visual indication and an output relay when a detector on the loop requires cleaning
Initiates the EZ Walk loop test
Provides Style D wiring on IDC loops
Green, red, and yellow LEDs indicate
- Loop communication status
- Maintenance alert
- Freeze trouble
- Alarm
- EZ Walk test enabled
- Wiring fault
Mounts to 4”-square back box
Durable terminal blocks with SEMS screws

Engineering Speciﬁcations

Loop test/maintenance module shall be an i3 series model number 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. Wiring connections shall be made by means of SEMS screws. The module shall provide three LED indicators which will blink or illuminate to indicate communication 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 ﬁ re 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 wiring.

Mounting

Electrical Specifications

Operating Voltage

Nominal: 12/24 V
Min.: 8.5 V power limited
Max.: 35 V power limited

Maximum Ripple Voltage

30% of nominal (peak to peak)

Alarm Contact Ratings

0.5 A @ 36VDC, Resistive

Maintenance Contact Ratings

2 A @ 30VDC, Resistive

Maximum Standby Current

30 mA

Maximum Alarm Current

90 mA

Max. Maintenance Current

53 mA

LED Modes

LED Color	Status	Condition

Green LED

| On| Power on. Detectors on loop do not have communication capability.
Blinking 1 sec. on / 1 sec. off| Power on. Detectors on loop are communicating normally.
Off| Power not applied or module not in operation.

Red LED