FireLite MDF-300 Dual Monitor Module

The MDF-300 Dual Monitor Module is intended for use in intelligent, two-wire systems. It provides two independent two-wire initiating device circuits (IDCs) at two separate, consecutive addresses. It is capable of monitoring normally open contact fire alarm and supervisory devices; or either normally open or normally closed security devices. The module has a single panel-controlled LED.

NOTE: The MDF-300 provides two Class B (Style Y) IDC circuits ONLY. Class A (Style Z) IDC circuits are NOT supported in any application.

MDF-300 Specifications

• Normal operating voltage range: 15 to 32 VDC.
• Maximum current draw: 5.1 mA (LED on).
• Average operating current: 750 µA (LED flashing).
• EOL resistance: 47K ohms.
• Maximum IDC wiring resistance: 1,500 ohms.
• Temperature range: 32º to 120ºF (0º to 49ºC).
• Humidity range: 10% to 93% (non-condensing).
• Dimensions: 4.5" (11.43 cm) high x 4" (10.16 cm) wide x 1.25" (3.175 cm) deep. Mounts to a 4" (10.16 cm) square x 2.125" (5.398 cm) deep box.

MDF-300 Automatic Addressing
The MDF-300 automatically assigns itself to two addressable points, starting with the original address. For example, if the MDF-300 is set to address "56", then it will automatically assign itself to addresses "56" and "57".

NOTE: "ones" addresses on the MDF-300 are 0, 2, 4, 6, or 8 only. Terminals 6 and 7 use the first address, and terminals 8 and 9 use the second address.