MDF-300 Dual Monitor Module Instructions Operating Voltage: Current Draw: Operating Current: Resistance: IDC wiring resistance: Range: to 32 VDC mA (LED on) (LED flashing) Ohms Ohms to 120 (0 to 49 to 93% Noncondensing H x 4 x 11/4 D (Mounts to a 4 square by 21/8 deep box.) Electrical Box Installing information is included as a quick reference installation guide. Refer to the control panel installation manual for detailed system If the modules will be installed in an existing operational system, inform the operator and local authority that the system be temporarily out of service. Disconnect power to the control panel before installing the modules. This manual should be left with the owner/user of this equipment. Description Dual Monitor Module is intended for use in addressable, two wire systems. It provides two independent 2-wire initiating device circuits at two separate, consecutive addresses. It is capable of monitoring normally open contact fire alarm and supervisory devices, or normally open or normally closed security devices. The module has a single panel controlled red LED. Requirements ensure proper operation, this module shall be connected to a compatible Fire system control panel (list available from directly to 4 square electrical boxes (see Figure 2A). The box must have a minimum depth of 21/8 Surface mounted elec- boxes (SMB500) are available from Fire 2A. Module mounting: All wiring must conform to applicable local codes, ordinances, and regula- This module is intended for power limited wiring only. Install module wiring in accordance with the job drawings and appropriate wir- diagrams. Set the address on the module per job drawings. Some panels support extended addressing. In order to set the module address 99 on compatible systems, carefully remove the stop on the rotary switch with thumb in the direction shown in Figure 1. Monitor module L (using terminals 6 and 7) responds at the address set the code switches. Monitor module H (using terminals 8 and 9) will automati- respond at the next higher address. For example, if the code switches are to 76, module L will respond at address 76 and module H will respond at ad- 77. Use caution to avoid duplicate addressing of modules on the system. Secure module to electrical box (supplied by installer), as shown in Figure 2A. 1. Removing Switch Stop: 865 10 2 1 2B: Alarms, Inc., One Fire-Lite Place., Northford, CT 06472-1653, (203)484-7161 3. Typical 2-wire initiating circuit configuration, NFPA Style B: INITIATING DEVICE CIRCUITS (L & H), POWER LIMITED TO 230 A @ 12VDC MAX. NEXT 865 PANEL OR DEVICE MODULES TO LISTED COMPATIBLE PANELS ONLY WIRING SHOWN IS SUPERVISED AND POWER LIMITED LINE VDC MAX. PAIR RECOMMENDED K EOL K EOL NUMBER OF UL LISTED CONTACT CLOSURE MAY BE USED. DO NOT MIX FIRE ALARM SUPERVISORY, OR SECURITY DEVICES THE SAME INITIATING DEVICE CIRCUIT. CONTACT CLOSURE DEVICES PER INSTALLATION INSTRUCTIONS. A (TERMINALS 6 & 7) RESPONDS AT ADDRESS ON CODE SWITCHES. MONITOR B (TERMINALS 8 & 9) AT NEXT HIGHER ADDRESS. Fire Alarms, Inc.