4-port 10/100/1000Base-T RJ-45 with auto MDI / MDI-X function. 2-port SFP slot interface, SFP supports 1000Base-X and 100Base-FX transceiver via DIP switch configured. Slim IP30 metal case protection. DIN Rail and Wall Mount Design. Redundant Power Design: 12 to 48V DC, redundant power with polarity reverse protect function; AC 24V power adapter acceptable. Supports EFT protection 6000 VDC for power line. Supports 6000 VDC Ethernet ESD protection. -40 to 75º C operating temperature. WITH LAYER 2 FEATURES.