wieNET IP Switch, 4-Port Managed Gigabit PoE Switch with 2 SFP slots, 2 Ports 10/100/1000BaseT(X) RJ45 with PoE based on IEEE 802.3 af/at , 2 P orts 100BASE-FX / 1000BASE-X SFP slot, ERPS Ring (recovery time < 20 ms @ 40 switches), STP/RSTP/MSTP for network redundancy, Remote Management with Web browser, Telnet console, serial console and Windows Utility, Pr ofinet v2 Class B compatible, GSDML device description file for integrat ion in Profinet-Networks, IP30 housing vertical design, Power supply 45- 57 VDC in PoE-802.3af mode/51-57 VDC in PoE-802.3at mode