Johnson Controls MMX-8J General Detector Interface Module

Overview of Johnson Controls MMX-8J

l A monitoring module must monitor The status of switch-type fire-fighting devices such as water flow indicators, fire hydrant buttons, and pressure switches. This monitoring module informs the controller of the status of such fire-fighting devices in both monitoring and alarm states and displays records. For large areas such as corridors and halls that require the parallel installation of conventional detectors, the interface module MMX-8PJ can be used.

l The MMX-8PJ occupies one address on the loop bus and can connect up to 25 conventional detectors (considering the GBJ116-88 standard, it is recommended to keep the parallel quantity around 10). When the interface module is in communication status, it can set the module using an electronic encoder between 101 and 199.

l The MMX-8J intelligent monitoring module can be addressed on-site using an encoder, occupying one address in a specific controller loop. When the monitoring module receives a closed signal from a switch, it transmits it to the controller via the bus.

Features of Johnson Controls MMX-8J

l Supports compatible two-wire detectors

l Monitors the status of input lines and external power sources

l Strong anti-interference capability (EMI-RFI)

l Provides LED indicators controlled by command codes from the controller

l Built-in model identification system that allows the control panel to recognize this device as MMX-8J automatically

l Directly powered by the loop, no additional power supply line is required

l SEMS screws with clips for easy wiring

l Decimal address setting (101-199), encoder set

l LED blinks during normal operation and remains lit during an alarm

Parameters

l Operating Voltage: 15–32 VDC

l Operating Temperature: -10–55℃

l Relative Humidity: 10%–95%, non-condensing

l Static Current: 200µA @ 24VDC (LED blinking)

l Maximum Current: 5mA @ 24VDC (LED steady on)

l Wiring: T1 (−), T2 (+): Loop communication bus; T8, T9: Passive monitoring device input

Installation

The MMX-8J can be directly installed in a 50mm deep, 100mm square embedded box.

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