Gai-tronics 379-002 Monitored RElay Module (MRM) Stations User Manual download pdf

Pub. 42004-491A

GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA

610-777-1374  800-492-1212  Fax: 610-796-5954

ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS

GAI-TRONICS® CORPORATION

A HUBBELL COMPANY

Model 379-002

Monitored Relay Module (MRM) Station

Confidentiality Notice

This manual is provided solely as an operational, installation, and maintenance guide and contains

sensitive business and technical information that is confidential and proprietary to GAI-Tronics.

GAI-Tronics retains all intellectual property and other rights in or to the information contained herein,

and such information may only be used in connection with the operation of your GAI-Tronics product or

system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any

third party.

General Information

The Model 379-002 Monitored Relay Module (MRM) Station is used in SmartSeries ADVANCE

Systems. Operation is controlled by the system’s Master Control Unit (MCU) programming.

The MRM provides eight relay output circuits. Each relay contains two type “C” contacts rated for 5A.

Relay outputs are typically used for switching power to signaling devices such as beacons or strobes but

can be used for any switching application that does not exceed the relay’s current rating. Relay circuits

can be programmed to activate during system alarms, pages, or trouble condition.

The MRM also contains eight input circuits. Input circuits can be used supervise the cable integrity

connecting the relay output to the signaling device (as described above). During an inactive state, the

cable is monitored for open circuit, short circuit and ground fault conditions. If a cable fault is detected,

the relay circuit will not activate, preventing a possible dangerous condition. The fault condition is

automatically reported to the MCU.

For each relay circuit not requiring supervision, one input circuit is available for other functions. Inputs

are activated by a voltage-free contact (either opening or closing) or the presence/absence of a 24 V dc

input voltage. When using inputs from voltage-free contacts, the MRM can supervise the cabling

between the input terminal and the remote contact closure device. The cable is monitored for open

circuit, short circuit and ground fault conditions. The fault condition is automatically reported to the

MCU.

Each input circuit can be programmed to initiate one of the following functions in the ADVANCE

system.

 Activate an alarm

 Reset all alarms

 Cancel the current alarm

 Report a fault condition

 Reset the system MCU

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Summary of Contents

Page 1 - Model 379-002

Pub. 42004-491A GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA 610-777-1374  800-492-1212  Fax: 610-796-5954 VISIT WW

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Page 3 - Installation

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Page 4

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Page 5

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Page 6

(Rev. 10/06)WarrantyEquipment. GAI-Tronics warrants for a period of one (1) year from the date of shipment, that anyGAI-Tronics equipment supplied he

Page 7

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Page 8

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Page 9

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Page 10 - CAUTION

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Page 11 - Pub. 42004-491A

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Page 12

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Page 13 - Specifications

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Page 14 - Return Policy

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Gai-tronics 379-002 Monitored RElay Module (MRM) Stations User Manual

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