4-port 10/100Base-TX RJ-45 with IEEE 802.3af PoE injector. 1-port 100Base-FX SFP interface. Complies with IEEE 802.3af Power over Ethernet End-Span PSE. Up to 4 IEEE 802.3af devices powered. Supports PoE Power up to 15.4 watts for each PoE port. Auto detects powered device (PD). Circuit protection prevents power interference between ports. Remote power feeding up to 100m. IP-30 aluminum metal case protection. DIN rail and wall mount design. 24 or 48V DC, redundant power with polarity reverse protect function. Supports EFT 6000V DC protection for power line. Supports Ethernet ESD 6000V DC protection. -40 to 75º C operating temperature. WITH LAYER 2 FEATURES.