The **A-RJ45KS-R** is a standard electronic component used in networking hardware. It is primarily a **Shielded RJ45 Keystone Jack** designed for high-speed data transmission. --- ### 1. Component Overview The "A-RJ45KS-R" typically refers to a Category 6 (Cat6) or Category 6A (Cat6A) Keystone module. It acts as the female interface for Ethernet cables (RJ45 connectors). | Feature | Specification | | :--- | :--- | | **Connector Type** | RJ45 (8P8C) | | **Category Rating** | Cat6 / Cat6A (Application dependent) | | **Shielding** | STP (Shielded Twisted Pair) - Metal Housing | | **Termination Type** | Toolless or 110 Punch Down | | **Orientation** | 180 Degree / Straight | --- ### 2. Internal Electronic Structure While it is a passive component, its internal construction is critical for signal integrity: 1. **Gold-Plated Pins:** The 8 internal contact pins are usually plated with 50 micro-inches of gold to prevent corrosion and ensure low contact resistance. 2. **PCB (Printed Circuit Board):** Inside the jack, a small PCB manages the transition from the RJ45 pins to the IDC (Insulation Displacement Connector) terminals. This PCB is engineered to minimize **Crosstalk (NEXT)** and **Return Loss**. 3. **Shielding (Metal Shell):** The "R" in the series often signifies a ruggedized or shielded design. The outer nickel-plated brass shell protects the data signal from Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI). 4. **IDC Terminals:** These are the "V" shaped metal slots where the copper wires of the Ethernet cable are pressed. They "bite" through the insulation to create a gas-tight connection. --- ### 3. Pinout Configuration (T568A/B) The module supports both T568A and T568B wiring standards. ```text Pin 1: White/Orange (or White/Green) Pin 2: Orange (or Green) Pin 3: White/Green (or White/Orange) Pin 4: Blue Pin 5: White/Blue Pin 6: Green (or Orange) Pin 7: White/Brown Pin 8: Brown ``` --- ### 4. Technical Application * **Data Rates:** Supports up to 10 Gbps (if Cat6A rated) over 100 meters. * **PoE Support:** Compatible with Power over Ethernet (PoE, PoE+, and PoE++) for powering devices like IP cameras and Access Points. * **Mounting:** Designed to snap into standard wall plates, patch panels, or surface mount boxes.