The **EX87424-R0BCR** is a high-performance, industrial-grade Managed Ethernet Switch manufactured by **EtherWAN**. It is designed specifically for harsh environments, providing robust connectivity for critical infrastructure. --- ## 1. Technical Specifications Overview The part number reflects a specific configuration of ports, power, and environmental certifications. | Feature | Specification | | :--- | :--- | | **Total Ports** | 28 Ports (High Density) | | **Port Configuration** | 24 x 10/100/1000BASE-T (Copper) + 4 x 1/10G SFP+ (Fiber) | | **Switching Capacity** | 128 Gbps | | **Mounting** | 1U 19" Rackmount | | **Management** | Layer 2+ (Managed) | | **Housing** | Metal, IP30 rated | --- ## 2. Key Electronic Features ### A. High-Speed Uplinks The device features **four 10-Gigabit SFP+ slots**. These are critical for avoiding bottlenecks when aggregating data from the 24 Gigabit copper ports and sending it to a central server or core switch. ### B. Industrial Hardening Unlike commercial switches, the EX87424-R0BCR is built with industrial-grade silicon: * **Operating Temperature:** Typically rated for -40°C to 75°C (-40°F to 167°F). * **Shock/Vibration:** Certified to IEC 60068 standards for constant physical stress. * **EMI/EMS:** High resistance to electromagnetic interference, essential for power substations or factory floors. ### C. Redundancy Protocols The internal firmware supports several electronic redundancy mechanisms to ensure zero downtime: * **Alpha-Ring:** EtherWAN’s proprietary recovery protocol (recovery time < 15ms). * **RSTP/MSTP:** Standard IEEE protocols for loop prevention. * **LACP:** Link Aggregation for combining multiple ports into a single high-bandwidth logical link. --- ## 3. Power Architecture The "R0BCR" suffix often denotes the power supply configuration: * **Input Voltage:** Usually supports wide range AC (100-240VAC) or dual DC inputs for power redundancy. * **Protection:** Includes over-voltage, over-current, and reverse polarity protection. --- ## 4. Typical Applications 1. **Smart Cities:** Connecting high-resolution IP surveillance cameras across a metropolitan area. 2. **Transportation:** Used in ITS (Intelligent Transportation Systems) for traffic signal control. 3. **Manufacturing:** Providing a backbone for PLC (Programmable Logic Controller) communication.