The **A-RJ45-BOX-2-R** is a specific electronic networking component, typically categorized as a **Surface Mount Box** or a **Unloaded RJ45 Keystone Box**. It serves as a housing unit for network terminations in environments where in-wall installation is not possible. --- ### 1. Technical Specifications The "2-R" in the part number generally indicates a **Dual Port (2-Way)** configuration with a specific revision or RoHS compliance (R). | Feature | Specification | | :--- | :--- | | **Component Type** | Surface Mount Box (SMB) | | **Port Count** | 2 Ports | | **Interface** | RJ45 (8P8C) compatible | | **Material** | ABS Thermoplastic (UL 94V-0 Fire Retardant) | | **Mounting** | Adhesive tape or Screws | | **Compatibility** | Standard Keystone Jacks (Cat5e, Cat6, Cat6a) | --- ### 2. Internal Electronic Structure While the box itself is passive (plastic housing), it functions as the structural interface for the following electronic elements: * **Keystone Snap-ins:** The box features internal clips designed to hold two separate RJ45 keystone modules. * **PCB/Terminals:** Depending on the specific manufacturer variant, it may either be "unloaded" (empty shell) or "loaded" with a small internal PCB that facilitates **IDC (Insulation Displacement Connector)** terminations (110 or Krone style). * **Shielding:** High-end versions include internal metallic foil or plating to maintain continuity for shielded (STP/FTP) cables to prevent Electromagnetic Interference (EMI). --- ### 3. Application and Usage The A-RJ45-BOX-2-R is commonly used in the following scenarios: 1. **Retrofitting:** Adding network ports to a room where the walls are solid (concrete/brick) and cannot be cut. 2. **Industrial Environments:** Mounted on machinery or DIN rails (with adapters) for modular connectivity. 3. **Cable Management:** Providing a clean termination point for horizontal cabling, reducing the risk of wire fatigue compared to direct-tethered plugs. --- ### 4. Installation Diagram (Conceptual) ```text [ Incoming Ethernet Cable ] -> [ IDC Terminals ] -> [ RJ45 Keystone Port ] -> [ User Patch Cord ] (Permanent Link) (Punch Down) (Female Socket) (To Device) ```