Product Features Four 10/100/1000 PoE+ ports (up to 30W power supply per port) One 10/100/1000 RJ45 and two GbE SFP uplink ports (for long-distance connection and cascading to control center) Supports QoS function via 802.1p tag, allowing prioritization of critical control data such as EIP (EtherNet/IP), PROFINET, and GOOSE in industrial applications, minimizing latency Wide input voltage range (24V–57V) for diverse environments Compliant with international standards IEEE 1613 and IEC 61850-3, providing reliability and safety for harsh power supply systems Operating temperature range: -40°C to 75°C (-40°F to 167°F), IP30 aluminum housing * Maximum operating temperature range by UL: -40°C to 70°C (-40°F to 158°F) Product OverviewThe SEN-9425P-24V-SS is an unmanaged industrial switch with 4-port 10/100/1000 PoE+ downlink, 1-port 10/100/1000 RJ45 uplink, and 2-port GbE SFP uplink, designed for operation in substation environments. This PoE+ switch features four PSE (Power Sourcing Equipment) ports, providing plug-and-play power supply to all connected PD (Powered Devices). To maintain stable transmission of video and data, the device uses rate limiting and QoS (Quality of Service), prioritizing industrial applications using protocols such as EIP, PROFINET, and GOOSE. The switch is built with industrial-grade components and housed in a high thermal conductivity IP30 aluminum case to protect the device from tools and hazards. The wide input voltage range of 24V–57V eliminates the need for additional power outlets, enabling operation in various substation applications. The device offers two power input methods: a 2-pin terminal block and a 4-pin mini DIN, both securely fixed to prevent disconnection during strong vibrations. Designed to withstand vibration, shock, drop, and temperature range of -40°C to 75°C (-40°F to 167°F), it is suitable for heavy industrial environments. Functions Redundant Power System: Simultaneous power supply from two different sources, such as SDR-480P-48 power supply and IRA-120/IRA-160 DIN rail mount AC-DC power adapters, with power failure alarm. Innovative Power Boost Technology: DC-DC converter boosts power from 24V to 57V DC for PoE/PoE+ devices requiring high power. High Power Supply for PoE Devices: Up to 30W/port (IEEE 802.3af/at) for PoE+ devices. DIN Rail Mountable Power Adapter (AC-DC): DIN rail mountable power adapter with 4-pin mini DIN power connector. Specifications Standards: IEEE 802.3 (10BASE-T), IEEE 802.3u (100BASE-TX), IEEE 802.3ab (1000BASE-T), IEEE 802.3z (1000BASE-SX/LX), IEEE 802.3 (Nway Auto-negotiation), IEEE 802.3x (Flow Control), IEEE 802.3af (Power over Ethernet), IEEE 802.3at (Power over Ethernet Plus), IEEE 802.3az (Energy Efficient Ethernet), IEEE 802.1p (Class of Service) Interface: 4 x 10/100/1000BASE-T (PoE RJ45), 1 x 10/100/1000BASE-T (RJ45), 2 x GbE SFP Slots LED Panel: PWR, SFP, PoE, 1000, LNK/ACT Power Input: 24~57V DC Connection: Terminal Block Power Input Polarity Protection: Present Power Consumption: System: 14W, PoE Power Budget: 120W Housing: Aluminum (IP30 protection) Mounting: DIN-Rail Operating Temperature: -40°C~75°C (-40°F~167°F) Storage Temperature: -40°C~85°C (-40°F~185°F) Operating/Storage Humidity: 5 to 95% RH (non-condensing) Weight: 869 g (1.9 lb) Dimensions (WxHxD): 50 x 161.5 x 119.9 mm (1.97 x 6.35 x 4.72 in) Order InformationModelDescriptionSEN-9425P-24V-SSUnmanaged 4 x 10/100/1000 PoE+ & 1 x 10/100/1000 RJ45 & 2 x GbE SFP Switch, Substation Approval Specifications may change without notice. Certifications/Icons: Operating temperature: -40°C-75°C 30W PoE+ DIN Rail mountable IP Code 30 Redundant Power Substation compliant UL certified ROHS, CE, FC Technical Specifications Model: SEN-9425P-24V-SS Type: Unmanaged Industrial PoE+ Switch Ports: 4 x 10/100/1000BASE-T (PoE+), 1 x 10/100/1000BASE-T (RJ45), 2 x GbE SFP Power Input: 24~57V DC Power Budget: 120W Operating Temperature: -40°C~75°C Housing: Aluminum, IP30 Mounting: DIN-Rail Certifications: IEEE 1613, IEC 61850-3, UL, ROHS, CE, FC