Supports 4*10/100/1000Tx IEEE 802.3bt Compliant with 90W/Port and 2*100/1000 SFP SlotsNetwork Redundancy Support: RSTP/MSTP, and G.8032 ERPS (Recovery Time <50ms)Configuration: Web Console, Telnet, CLI CommandSupports IGMP v1/v2/v3, up to 1024 GroupsSupports QoS (IEEE802.1p) and CoS/ToSSupports IEEE802.1Q VLAN, SNMP v1/v2cPower Input: 48~55VDC in 6-Pin Terminal BlockReverse Polarity ProtectionIP40 ProtectionDIN-Rail or Wall MountableOperating Temperature Range – STD: -10°C to 65°C5-Year Warranty