Supports 16*10/100/1000Tx IEEE 802.3at/af Compliant with 30W/Port4*100/1000 SFP portsNetwork Broadcast Storm ProtectionNetwork Redundancy Support: RSTP/MSTP, and G.8032 ERPS (Recovery time <50ms)Configuration: Web Console, Serial, CLI CommandSupports IGMP v1/v2Supports QoS (IEEE 802.1p) and CoS/ToSSupports IEEE 802.1Q VLAN, SNMP v1/v2c/v3Redundant Power Input Design 48~55VDC + Built-in Relay Output for Port Break AlarmSystem Warning Setting for Automatic Warning through E-mailDIN-Rail and Wall Mount SupportOperating Temperature Range - EOT: -40° to 75°C5-Year Warranty