The **47LT-162R-R** is a specific part number typically associated with **RJ45 Integrated Connector Modules (ICMs)**, often manufactured by companies like **Abracon** (formerly ProAnt/LAN-PRO) or similar magnetic component specialists. These components combine a standard RJ45 Ethernet jack with the internal "magnetics" (transformers and chokes) required for Ethernet communication. --- ## 1. Key Technical Specifications The alphanumeric code describes the physical and electrical characteristics of the connector. | Feature | Specification | | :--- | :--- | | **Component Type** | RJ45 Tab-Up with Internal Magnetics | | **Ethernet Speed** | 10/100 Base-TX (Fast Ethernet) | | **Port Configuration** | Single Port (1x1) | | **LED Configuration** | Typically Dual (Left: Green/Yellow, Right: Green/Yellow) | | **Mounting Type** | Through-Hole (THT) | | **Shielding** | Metal Shield with EMI fingers | --- ## 2. Internal Components (The Magnetics) The "162R" portion of the part number usually refers to the specific internal wiring schematic. Inside the plastic housing, there are several sub-components: ### A. Isolation Transformers * **Purpose:** Provides 1500V AC galvanic isolation between the Ethernet cable and the PHY (Physical Layer) chip. * **Function:** Protects the sensitive electronics from static electricity and voltage surges on the network line. ### B. Common Mode Chokes * **Purpose:** Noise suppression. * **Function:** Filters out Electromagnetic Interference (EMI) to ensure the device complies with FCC/CE emissions standards. ### C. Resistors and Capacitors (Termination) * Usually includes "Bob Smith" termination (typically 75Ω resistors and a high-voltage capacitor) to reduce common-mode noise and improve signal integrity. --- ## 3. Physical Layout and Pins The device separates the "dirty" side (the cable) from the "clean" side (your PCB). * **Front Side:** The RJ45 socket where the Cat5/Cat6 cable is inserted. * **Bottom Side (Pins):** * **Signal Pins:** Connect to the Ethernet PHY chip on your board. * **LED Pins:** Connect to the status indicator outputs of your microcontroller or PHY. * **Shield Tabs:** Grounding points to drain interference to the chassis/earth ground. --- ## 4. Typical Applications The 47LT-162R-R is commonly found in: 1. **Industrial PCs:** For stable wired networking. 2. **IoT Gateways:** Connecting sensors to a local network. 3. **Network Switches:** Low-density or entry-level networking gear. 4. **Embedded Systems:** Single-board computers (SBCs) requiring a compact Ethernet solution. ---