4*10/100Tx RJ45 Ports and 2*100Fx SC Fiber Ports with Single mode 30KmSupports Network Redundancy: STP/RSTP/MSTP, and G.8032 ERPS (Recovery Time <50ms)Supports IPv4/IPv6, and DHCP Option 66/67/82Supports Modbus/TCP Protocol for Device Management and MonitoringConfiguration: Web Console, Telnet, CLI CommandIGMP v1/v2 for Multicast Traffic FilteringQoS (IEEE802.1p/1Q), CoS/ToS to Increase DeterminismIEEE802.1Q VLAN for Easy Network PlanningEnhanced Network Security with IEEE802.1X, SNMP v1/v2c/v3, HTTPS, and SSH/SSLAuto Warning by Exception through E-mail, Relay OutputSupport RMON Function for Efficient Network MonitoringSupport Port Mirroring for Online DiagnosticStandard operating temperature -10°C to 70°C5-Year Warranty