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Home --> Fire Alarm Systems
MMF 300 A
  • General
  • Feature
  • Specification
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). MMF-300 is a standard-sized module (typically mounts to a 4" [10.16 cm] square box) that supervises either a Class A (Style D) or Class B (Style B) circuit of dry-contact input devices. MMF-301 is a miniature monitor module (a mere 1.3" (3.302 cm) H x 2.75" (6.985 cm) W x 0.5" (1.270 cm) D) used to supervise a Class B (Style B) circuit of dry-contact input devices. Its compact design allows the MMF-301 to often be mounted in a single-gang box behind the device it monitors. MMF-302 is a standard-sized module used to monitor and supervise compatible two-wire, 24 volt, smoke detectors on a Class A (Style D) or Class B (Style B) circuit. MDF-300 is a standard-sized dual monitor module used to monitor and supervise two independent two-wire Style B (Class B) dry-contact initiating device circuits (IDCs) at two separate, consecutive addresses in intelligent, two-wire systems. 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.

• 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 MMF-300 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 can be used to replace M300 modules in existing systems.

Nominal operating voltage: 15 to 32 VDC. Maximum current draw: 5.1 mA (LED on). Maximum IDC wiring resistance: 25 ohms. Maximum operating current: 270 μA (LED flashing). EOL resistance: 3.9K ohms. External supply voltage (between Terminals T3 and T4): DC voltage: 24 volts power limited. Ripple voltage: 0.1 Vrms maximum. Current: 90 mA per module maximum. Temperature range: 32°F to 120°F (0°C to 49°C). Humidity range: 10% to 93% noncondensing. 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.