The **EX87424-R05W** is a high-performance, industrial-grade Managed Ethernet Switch manufactured by **EtherWAN**. It is designed specifically for harsh environments and critical infrastructure applications. --- ## 1. Core Technical Specifications The model number breakdown reveals its primary hardware configuration and port density. | Component | Specification | | :--- | :--- | | **Total Ports** | 28 Ports | | **Gigabit Ports** | 24 x 10/100/1000BASE-TX (RJ45) | | **Uplink Ports** | 4 x 1/10G SFP+ Slots (Fiber) | | **Switching Capacity** | 128 Gbps | | **Mounting** | 1U 19" Rack-mount | | **Input Voltage** | Redundant 100-240VAC | --- ## 2. Key Electronic Features ### Hardware Resilience * **Fanless Design:** The unit is often built with advanced thermal dissipation to minimize moving parts, increasing the Mean Time Between Failures (MTBF). * **Redundant Power:** It features dual AC power inputs to ensure the device remains operational if one power source fails. * **Operating Temperature:** Engineered to function in extreme conditions, typically ranging from **-40°C to 75°C** (-40°F to 167°F). ### Management & Intelligence The "Managed" aspect refers to the internal logic boards and firmware capabilities: * **L2+/L3 Static Routing:** Includes support for IPv4/IPv6 static routing to manage traffic between different VLANs. * **Redundancy Protocols:** Supports **Alpha-Ring**, RSTP, MSTP, and LACP for sub-15ms recovery in the event of a network loop or link failure. * **Security:** Features 802.1x Port-based authentication, RADIUS/TACACS+, and ACLs (Access Control Lists). --- ## 3. Physical Interfaces | Port Type | Quantity | Usage | | :--- | :--- | :--- | | **RJ45** | 24 | High-speed copper connections for local devices (PCs, PLCs, Cameras). | | **SFP+** | 4 | 10-Gigabit fiber modules for long-distance backbone connectivity. | | **Console** | 1 | RS-232 (RJ45) for out-of-band management and configuration. | | **Relay Contact** | 1 | Configurable alarm output for power or port link failure. | --- ## 4. Industrial Compliance This specific hardware is often certified for specialized environments: * **NEMA TS2:** For traffic control equipment. * **IEC 61850-3 / IEEE 1613:** For power substation automation. * **EN 50121-4:** For railway trackside applications.