The **M2AS1-6132-R2** is a high-performance, single-port **10/100/1000 Base-T (Gigabit Ethernet) RJ45 Connector Module** with integrated magnetics. This component is commonly used in networking hardware to bridge the physical cable and the Ethernet PHY chip. --- ### 1. Key Technical Specifications Below are the primary electronic characteristics of the module: | Parameter | Specification | | :--- | :--- | | **Type** | RJ45 with Internal Magnetics | | **Speed** | 10/100/1000 Mbps (Gigabit) | | **Configuration** | Single Port (1x1) | | **Turns Ratio** | 1CT:1CT (Transmitter and Receiver) | | **Isolation Voltage** | 1500 Vrms (Minimum) | | **LED Colors** | Typically Green (Left) / Yellow (Right) | | **Shielding** | Metal Housing with EMI Tabs | --- ### 2. Internal Electronic Components The "R2" designation often refers to the internal circuitry layout. Inside the metal housing, there are several critical electronic parts: * **Isolation Transformers:** These provide galvanic isolation between the network cable and the PCB. They protect the device from high-voltage surges and ground loops. * **Common Mode Chokes (CMC):** Integrated coils that suppress Electromagnetic Interference (EMI) and noise without affecting the data signal. * **Termination Resistors (Bob Smith Termination):** A network of resistors and high-voltage capacitors (usually 75Ω and 1000pF) designed to reduce common-mode noise and match impedance. * **Integrated LEDs:** Built-in diodes used for link status and activity indication, simplifying the PCB layout. --- ### 3. Pinout and Design Features The M2AS1 series is designed for **Tab-Up** or **Tab-Down** mounting (refer to the specific datasheet for orientation) and features a compact footprint. #### Signal Integrity Features: 1. **30μ" or 50μ" Gold Plating:** Ensures low contact resistance and prevents oxidation over time. 2. **EMI Finger Tabs:** The metal shield features spring-like tabs that make contact with the chassis/enclosure to provide a path to ground for interference. 3. **Low Insertion Loss:** Optimized for minimal signal degradation over the standard 100-meter Ethernet cable length. --- ### 4. Typical Applications * **Network Interface Cards (NICs)** * **Industrial PC Motherboards** * **Switches and Routers** * **Embedded Systems (IoT Gateways)** ---