L3 Industrial 16-Port PoE Gigabit + 4-Port 10G SFP+ Managed Ethernet Switch UTP7616GE-POE-IE Datasheet Manual Firmware FEATURESAbundant Interfaces16*10/100/1000Base-T PoE RJ45 ports4*1000M/10G Base-X SFP ports (Mini-GBIC)1*RJ45-R232 serial port (115200,8,N,1)Industrial DesignRedundant power supply-40~75℃ working temperature √ 6kV surge immunity8kV contact discharge,15kV air discharge ESD protectionRelay Alarm for power failure, cable link down and PoE link downIP 40 Fan-less metal shell designDIN-rail or wall mounted installationLayer 3 Network Management802.1Q VLAN802.1P QoSSNMPIPv6Fast-Ring, self-healing in 20msOne-key smart mode: CCTV, LOCK, RING, ONLINE