The **JFR2-1M1-R** is a high-performance **Fiber Optic Receiver** module typically manufactured by JST or specific industrial electronics suppliers. It is designed to convert optical signals back into electrical signals, primarily for use in high-speed digital data transmission systems. --- ### ## Technical Specifications The following table summarizes the key characteristics of the JFR2-1M1-R: | Parameter | Specification | | :--- | :--- | | **Component Type** | Fiber Optic Receiver (Photo-Link) | | **Connector Type** | Standard Optical Connector (Plug-in) | | **Data Rate** | Up to 16 Mbps (standard for this series) | | **Supply Voltage (Vcc)** | 2.7V to 5.25V (Typical 3.3V/5V) | | **Operating Temperature** | -20°C to +70°C | | **Output Type** | TTL / CMOS Compatible | | **Fiber Material** | Plastic Optical Fiber (POF) | --- ### ## Internal Composition The device is an integrated module containing several critical sub-components: 1. **PIN Photodiode:** A high-sensitivity light detector that converts incoming photons into a weak electrical current. 2. **Transimpedance Amplifier (TIA):** Converts the weak current from the photodiode into a measurable voltage. 3. **Quantizer / Schmitt Trigger:** Reshapes the signal into a clean square wave (digital HIGH/LOW) to eliminate noise and jitter. 4. **Housing:** A shielded plastic or metal casing designed to align perfectly with the fiber optic cable to minimize signal loss. --- ### ## Key Features * **EMI/RFI Immunity:** Because the transmission medium is light (fiber) rather than copper, it is completely immune to electromagnetic interference. * **Galvanic Isolation:** Provides electrical isolation between the transmitter and receiver, preventing ground loops. * **Plug-and-Play:** Designed for easy insertion into PCB-mounted sockets or direct soldering. --- ### ## Usage Example In a typical circuit, the receiver is paired with a matching transmitter (like the JFT series). Below is a simplified representation of the pin-out logic: ```cpp // Schematic Logic for JFR2-1M1-R Integration Pin 1: Vcc (Power Supply) Pin 2: GND (Ground) Pin 3: Vout (Digital Data Output to Microcontroller/FPGA) ``` ---