4-port 10/100Base-TX RJ-45 with auto MDI/MDI-X function; 1-port 100Base-FX interface for up to 2km (Multi-mode fiber 50µm/125µm). IP-30 metal case / protection. DIN rail and wall mount design. 12 to 48V DC, redundant power with polarity reverse protect function and connective removable terminal block for master and slave power. Supports EFT protection 6000 VDC for power line. Supports 6000 VDC Ethernet ESD protection. -10 to 60º C operating temperature. WITH LAYER 2 FEATURES.