Fire-Lite MMF-302 Fire Alarm 2-wire Smoke Detector Interface Module - This high-performance interface module enables seamless integration of 2-wire smoke detectors into intelligent fire alarm control panels. It provides reliable monitoring and power management for conventional detection zones within complex life-safety systems.

Key Technical Specifications:

• Operating Voltage Range: 15 to 32 VDC
• Maximum Standby Current: 375 µA
• Maximum Alarm Current: 5 mA (LED latched on)
• Maximum Wiring Resistance: 25 Ohms
• Operating Temperature: 32°F to 120°F (0°C to 49°C)

Engineered to exceed the performance metrics of older, legacy interface devices, this module offers enhanced communication stability and reduced noise interference. While previous generations often struggled with signal degradation over long wire runs, the MMF-302 utilizes advanced digital signaling to ensure consistent, real-time status reporting back to the main control panel.

Advanced System Integration and Performance

The MMF-302 excels by providing a supervised connection between the intelligent SLC loop and a conventional 2-wire smoke detector circuit. By incorporating sophisticated end-of-line resistor monitoring, the unit ensures that every connected device remains fully operational and supervised against open or short circuits.

Beyond simple monitoring, this module streamlines maintenance workflows through its compact, mountable design compatible with standard electrical boxes. Its robust internal circuitry is specifically hardened against electrical surges, ensuring long-term reliability in demanding fire alarm environments where uptime is critical to safety and compliance.