Description
The Honeywell MMF-300 is a professional-grade addressable monitor module engineered for integration with addressable fire alarm and life safety control systems. Designed to supervise initiating device circuits (IDC), it provides reliable zone monitoring in commercial and industrial applications where precise fault detection and system integrity are critical.
Product Overview
The MMF-300 monitors conventional initiating device circuits and reports their status back to the addressable control panel. It is ideal for retrofitting existing conventional zones into addressable systems, expanding system coverage, or supervising contact-type devices such as pull stations, heat detectors, and waterflow switches.
Electrical Specifications
- Operating Voltage: 15–32 Vdc
- Maximum Current Draw: 5 mA
- Maximum IDC Wiring Resistance: 1,500 Ohms
- Maximum IDC Voltage: 11 Volts
- End-of-Line (EOL) Resistance: 47K Ohms
Environmental Ratings
- Operating Temperature Range: 32°F to 120°F (0°C to 49°C)
- Humidity Range: 10–93% Non-Condensing
Key Features
- Addressable design for seamless integration with compatible fire alarm control panels
- Supervises conventional IDC wiring for open and short-circuit fault detection
- Low current draw minimizes load on the addressable loop
- Wide operating voltage range (15–32 Vdc) supports diverse panel configurations
- 47K Ohm EOL resistor compatibility for standard supervised circuit configurations
- Suitable for commercial, institutional, and industrial fire alarm applications
Application
The MMF-300 is commonly used in new construction and retrofit projects where conventional initiating devices must be connected to an addressable fire alarm loop. It bridges the gap between legacy conventional devices and modern addressable systems, preserving existing wiring investments while upgrading system intelligence.
