General Description The MMF-302 Interface Module is intended for use in addressable two-wire systems, where the individual address of each module is selected using the built-in rotary switches. This module allows addressable panels to interface and monitor two-wire conventional smoke detectors. It transmits the status (normal, open, or alarm) of one full zone of conventional detectors back to the control panel. All two-wire detectors being monitored must be UL compatible with this module. The MMF-302 has a panel controlled LED indicator and can be used to replace an M302 module in existing systems.
Specifications Normal Operating Voltage: 15 to 32 VDC Maximum Current Draw: 5.1mA (LED on) Average Operating Current: 270µA (LED flashing) EOL Resistance: 3.9K ohms Maximum IDC Resistance: 25 Ohms IDC Supply Voltage (between Terminals T10 and T11) Regulated DC Voltage: 24 VDC power limited Ripple Voltage: 0.1 Volts RMS maximum Current: 90mA per module Temperature Range: 32˚F to 120˚F (0˚C to 49˚C) Humidity: 10% to 93% Non-condensing Dimensions: 41⁄2˝ H × 4˝ W × 11⁄4˝ D (Mounts to a 4˝ square by 21⁄8˝ deep box.) Accessories: SMB500 Electrical Box