Features and Benefits  Advanced PoE management function Three rotary switches for setting the last 3 digits of the IP address makes maintenance even easier IPv6 Ready logo awarded (IPv6 Logo Committee certified) Leading EN50155-compliant PoE switches for rolling stock applications DHCP Option 82 for IP address assignment with different policies EtherNet/IP* and Modbus/TCP industrial Ethernet protocol supported Modbus/TCP industrial Ethernet protocol supported Turbo Ring, Turbo Chain, RSTP/STP, and MSTP* for network redundancy IGMP snooping and GMRP for filtering multicast traffic Port-based VLAN, IEEE 802.1Q VLAN, and GVRP to ease network planning QoS (IEEE 802.1p/1Q and TOS/DiffServ) to increase determinism IEEE 802.3ad, LACP for optimum bandwidth utilization SNMPv3, IEEE 802.1X, HTTPS, and SSH to enhance network security SNMPv1/v2c/v3 for different levels of network management RMON for efficient network monitoring and proactive capability Bandwidth management prevents unpredictable network status Lock port allows access by only authorized MAC addresses Port mirroring for online debugging Automatic warning by exception through email, relay output Line-swap fast recovery Automatic recovery of connected device's IP addresses LLDP for automatic topology discovery in network management software Configurable by web browser, Telnet/serial console, and CLI*, and Windows utility Panel mounting or DIN-Rail mounting installation capability Works with MXview industrial network management software *Available in Q3, 2011   Introduction The ToughNet TN-5500 series M12 PoE managed Ethernet switches are designed for industrial applications, such as rolling stock, vehicle, and railway. The TN series switches use M12 and other circular connectors to ensure tight, robust connections, and guarantee reliable operation against environmental disturbances, such as vibration and shock.   The TN-5516-8PoE series Ethernet switches provide 16 fast Ethernet M12 ports with 8 IEEE 802.3af compliant PoE (Power-over-Ethernet) ports. The s