The **FLM-CF-R** is an addressable FlashScan® monitor module primarily used in Honeywell/Fire-Lite fire alarm systems. It is specifically designed to provide a supervised interface for dry-contact devices, such as waterflow switches or manual pull stations. --- ### 1. Key Electronic Components & Features The module acts as a bridge between the Fire Alarm Control Panel (FACP) and initiating devices. | Feature | Specification | | :--- | :--- | | **Communication Protocol** | FlashScan® (High-speed polling) | | **Operating Voltage** | 15 to 32 VDC (Peak-to-Peak) | | **Standby Current** | 375 μA (typical) | | **LED Indicators** | Bi-color LED (Green for polling, Red for alarm) | | **Address Range** | 01–159 (set via rotary switches) | | **End-of-Line (EOL) Resistor** | 47K Ohms | --- ### 2. Functional Electronic Design #### A. Rotary Addressing The device features two integrated rotary switches (tens and ones). These allow technicians to set a unique decimal address for the module, ensuring the control panel can identify the exact location of a triggered switch. #### B. Supervisory Circuit The electronics include a **Class B (Style B)** initiating circuit. It monitors the wiring between the module and the dry contact: - **Normal:** 47K Ohm resistance detected. - **Alarm:** Short circuit detected (contact closed). - **Trouble:** Open circuit detected (wiring break). #### C. FlashScan® Technology Unlike older "CLIP" protocols, the FLM-CF-R uses **FlashScan®**, a high-speed communication protocol. This allows the control panel to poll multiple devices simultaneously, significantly reducing the time it takes for an alarm signal to reach the main panel. --- ### 3. Wiring Terminal Configuration The module typically features a terminal block for field wiring: | Terminal | Description | | :--- | :--- | | **T1 & T2** | SLC (Signaling Line Circuit) Connection | | **T3 & T4** | Supervised Initiating Device Circuit (Dry Contacts) | --- ### 4. Physical Indicators The onboard LED is software-controlled by the panel: - **Blinking Green:** Indicates the module is communicating successfully with the FACP. - **Steady Red:** Indicates an alarm condition or active state.