Firelite | MMF-301

Fire-Lite MMF-301 Miniature Monitor Module

The Fire-Lite MMF-301 is a compact, intelligent monitor module designed for use in addressable fire alarm systems. It supervises a Style B (Class B) circuit of dry-contact input devices, such as manual pull stations or waterflow switches, and reports their status to the control panel. 

Key Features:

• Compact Design: Measuring just 1.3 inches (3.3 cm) in height, 2.75 inches (7 cm) in width, and 0.65 inches (1.7 cm) in depth, the MMF-301’s small size allows for installation in a single-gang junction box directly behind the monitored device, facilitating flexible and discreet placement. 

• Rotary Address Switches: Equipped with rotary switches, the module allows for precise and straightforward address selection, ensuring accurate identification within the system. 

• LED Indicator: The built-in LED flashes during regular communication with the control panel and latches on steady to indicate an alarm condition, providing clear visual status updates. 

Specifications:

• Operating Voltage: 15 to 32 VDC

• Average Operating Current: 350 µA (LED flashing); 600 µA maximum when communicating with an IDC short

• EOL (End-of-Line) Resistor: 47K ohms

• Maximum IDC Wiring Resistance: 1,500 ohms

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

• Humidity Range: 10% to 93% non-condensing

• Dimensions: 1.3 inches (3.3 cm) H × 2.75 inches (7 cm) W × 0.65 inches (1.7 cm) D

Compatibility:

The MMF-301 is compatible with Fire-Lite’s intelligent, two-wire fire alarm control panels. It is designed to monitor a single device or a zone of four-wire smoke detectors, manual fire alarm pull stations, waterflow devices, or other normally open dry-contact devices. The module communicates its status to the control panel, ensuring prompt and accurate monitoring of connected devices.