The M502M Interface Module is intended for use in intelligent, two-wire systems, where the individual address of each module is selected using the built-in rotary decade switches. This module allows intelligent 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 M502M has a panel controlled LED indicator.
Specifications Normal Operating Voltage: 15 to 32 VDC Maximum Current Draw: 5.1mA (LED on) Average Operating Current: 300µA, 1 communication and 1 LED flash every 5 seconds, 3.9k eol EOL Resistance: 3.9K Ohms Maximum IDC wiring 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 x 4˝ W x 11⁄4˝ D (Mounts to a 4˝ square by 21⁄8˝ deep box.) Accessories: SMB500 Electrical Box