FIRELITE   MDF-300

MDF-300
$0.96      

• Built-in type identification automatically identifies this device as two monitor modules to the control panel.
• Powered directly by the two-wire SLC loop. No additional power required.
• High noise (EMF/RFI) immunity.
• SEMS screws with clamping plates for ease of wiring.
• Direct-dial entry of address 01 – 159 on the MS-9600.
• LED flashes green during normal operation and latches on steady red to indicate alarm.

The MDF-300 Dual Monitor Module is intended for use in intelligent, two-wire systems, where the individual address of each module is selected using the built-in rotary switches. It provides two independant two-wire fault-tolerant 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 red LED indicator.

Use to monitor a zone of four- wire smoke detectors, manual fire alarm pull stations, waterflow devices, or other normally-open dry-contact alarm activation devices. May also be used to monitor normallyopen supervisory devices with special supervisory indication at the control panel. Monitored circuit may be wired as an NFPA Style B (Class B) Initiating Device Circuit. The 47K ohm End-of-Line Resistors (provided) terminate the Style B circuit. Maximum IDC resistance is 1,500 ohms.

Each MDF-300 uses two of 99 (MS-9200) or 159 (MS-9600) available module addresses on an SLC loop. It responds to regular polls from the control panel and reports its type and the status (open/normal/short) of its Initiating Device Circuit (IDC). A flashing LED indicates that the module is in communication with the control panel. The LED latches steady on alarm (subject to current limitations on the loop).

MDF-300 module mount directly to a standard 4" (101.6 mm) square, 2.125" (53.975 mm) deep, electrical box. They may also be mounted to the SMB500 surface-mount box. Mounting hardware and installation instructions are provided with each module. All wiring must conform to applicable local codes, ordinances, and regulations. These modules are intended for power-limited wiring only.