System Sensor M502M - User Manual

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D500-19-00 1 I56-762-01

M502M Two-wire Conventional

Detector Interface Module

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

Before Installing

This information is included as a quick reference installa-

tion guide. Refer to the appropriate installation manual for

detailed system information. If the modules will be in-

stalled in an existing operational system, inform the opera-

tor and local authority that the system will be temporarily

out of service. Disconnect power to the control panel before

installing the modules.

NOTICE: This manual should be left with the owner/user

of this equipment.

General Description

The M502M Interface Module allows intelligent panels to

interface and monitor two-wire conventional smoke detec-

Specifications

Temperature: 32° to 120° F (0° to 49° C)

Humidity: 10% to 93% Noncondensing

Weight: .5 lbs (232 g)

Dimensions: 4

/2" H, 4" W, 1

/4" D (Mounts to 4" square by 2

/8" deep electrical boxes.)

Test Features: Magnetically activated reed switch.

Accessories: SMB500 Surface Mount Box for 500 series modules

M02-04-00 Test Magnet for testing devices

Communication Line – Terminals 1 & 2

Voltage: 15 – 32 VDC

Current: 200

A Max @ 24 VDC, no communication

1.3 mA Max (Style D enabled)

5.1 mA Max 24V (LED latched on)

Loop Impedance: 40 Ω Max

External Power Supply Requirements – Terminals 3 & 4

Voltage: 17.6 – 28.2 VDC (filtered, regulated, and power-limited)

Ripple: 100mV RMS Max

Current: 92 mA per module

(Power must be interrupted to reset detectors. The interface module must have a minimum of 15 VDC at terminals 3 and 4

to function properly. Ground fault detection must be accomplished by the control panel.)

Initiating Device Circuit (IDC) – Terminals 6, 7, 8, & 9

Voltage: 12.5 to 30.3 VDC (Ripple: 100mV RMS Max)

Current: 92 mA Max

IDC Loop Impedance: 25 Ω Max

Standby Current: 10 mA Max @ maximum IDC voltage

Detector Current in Standby: Up to 2.4 mA

Alarm Current: 20 mA minimum

Style: Style B (class B) / Style D (class A)

EOL Resistance: 3.9K ohm nominal

(Detector loop current is sufficient to ensure operation of one alarmed detector per zone.)

tors. All two-wire detectors being monitored must be UL

compatible with the module.

The module is addressed through the communication line

of intelligent systems. When the module is interrogated, it

transmits the status of one zone of two-wire detectors to an

intelligent control panel. Status conditions are reported as

normal, open, or alarm. The interface module supervises

the zone of detectors and the connection of an external

power supply.

Two rotary decade switches allow setting module addresses

from 00–99. A status LED indicator is provided and is con-

trolled by code command from the control panel. The mod-

ule provides a magnetically activated test switch for testing

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Summary

M502 M Two-wire Conventional Detector Interface Module

Module Specifications

Details temperature, humidity, weight, dimensions, test features, and accessories.

Communication Line Details

Specifies voltage, current, and loop impedance for terminals 1 & 2.

External Power Supply Requirements

Outlines voltage, ripple, and current for terminals 3 & 4.

Initiating Device Circuit (IDC) Specifications

Specifies voltage, current, and loop impedance for terminals 6, 7, 8, & 9.

Standby and Alarm Currents

Details standby current, detector current, alarm current, style, and EOL resistance.

Before Installing the Module

Crucial pre-installation steps including system notification and power disconnection.

General Description of Module

Describes the M502M's function in interfacing intelligent panels with conventional detectors.

Module Installation and Testing

Compatibility Requirements

Details requirements for connecting to compatible intelligent control panels and UL compatibility.

Package Contents and Mounting

Lists items included and explains mounting to electrical boxes.

Wiring Instructions

Provides wiring instructions, including code compliance and barrier usage.

Module Testing Procedure

Describes how to test the module using a test magnet and detector testing.

Compatible Detectors List

Table listing compatible System Sensor two-wire smoke detectors and their identifiers.

Wiring Diagrams

NFPA Style B Wiring

Wiring diagram for NFPA Style B configurations.

NFPA Style D Wiring

Wiring diagram for NFPA Style D configurations.

Control Module Power Switching Diagram

Power Supply Switching Diagram

Diagram showing control module switching power to the M502M.

Three-Year Limited Warranty

Details the three-year limited warranty for the module.