FireLite MS-4 Four Zone Fire Alarm Control Panel

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  • Regular price $368.40

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Four different monitor modules are available for Fire•Lite’s intelligent control panels to suit a variety of applications. Monitor modules are used to supervise a circuit of dry-contact input devices, such as conventional heat detectors and pull stations, or monitor and power a circuit of two-wire smoke detectors (MMF-302(A)).

MMF302(A) is a standard-sized module used to monitor and supervise compatible two-wire, 24 volt, smoke detectors on a Style D (Class A) or Style B (Class B) circuit.

LiteSpeed™ is a communication protocol developed by Fire•Lite Engineering that greatly enhances the speed of communication between analog intelligent devices. Intelligent devices communicate in a grouped fashion. If one of the devices within the group has new information, the panel CPU stops the group poll and concentrates on single points. The net effect is response speed greater than five times that of other designs. designs.

Monitor Module

  • Built-in type identification automatically identifies this device as a monitor module to the control panel
  • Powered directly by two-wire SLC loop. No additional power required
  • High noise (EMF/RFI) immunity
  • SEMS screws with clamping plates for ease of wiring
  • Direct-dial entry of address: 01 – 159 on MS-9600 series panels, 01 – 99 on other compatible systems
  • LED flashes during normal operation and latches on steady to indicate alarm.

The MMF300(A) Monitor Module is intended for use in intelligent, two-wire systems, where the individual address of each module is selected using the built-in rotary switches. It provides either a two-wire or four-wire fault-tolerant Initiating Device Circuit (IDC) for normally-open-contact fire alarm and supervisory devices. The module has a panel-controlled LED indicator. The MMF-300(A) can be used to replace M300(A) modules in existing systems.


Use to monitor a zone of four-wire smoke detectors, manual fire alarm pull stations, waterflow devices, or other normally open dry-contact alarm activation devices. May also be used to monitor normally-open supervisory devices with special supervisory indication at the control panel. Monitored circuit may be wired as an NFPA Style B (Class B) or Style D (Class A) Initiating Device Circuit. A 47K ohm End-of-Line Resistor (provided) terminates the Style B circuit. No resistor is required for supervision of the Style D circuit.


Each MMF300(A) uses one of the available module addresses on an SLC loop. It responds to regular polls from the control panel and reports its type and the status (open/normal/short) of its Initiating Device Circuit (IDC). A flashing LED indicates that the module is in communication with the control panel. The LED latches steady on alarm (subject to current limitations on the loop).


Normal Operating Voltage 15 to 32 VDC
Maximum Current Draw 5.0 mA (LED on)
Average Operating Current 350 A (LED flashing), 1 communication every 5 seconds, 47k EOL
Maximum IDC Wiring Resistance 40 ohms
EOL Resistance 2 mA maximum (using internal EOL relay)
EOL Resistance 47K ohms
Temperature Range 32°F to 120°F (0°C to 49°C)
Humidity Range 10% to 93% non-condensing
Dimensions 4.5" (11.43 cm) high x 4" (10.16 cm) wide x 1.25" (3.175 cm) deep. Mounts to a 4" (10.16 cm) square x 2.125" (5.398 cm) deep box