NPort ® S8000 series is a combination of switch and serial device server. It is an upgraded product of NPort ® 5000 series. It supports the functions of NPort ® 5000 series. It supports network management switch functions. It has 5 built-in network management Ethernet ports, 2 optical fiber ports, 3 Ethernet ports, supports Turbo Ring (self-healing time < 20 ms) or RSTP / STP (IEEE 802.1w / D), supports QoS, IGMP-snooping / GMR2P, VLAN, LACP, SNMPv1 / v2c / v3, RMON, and transient protection for serial ports, power supplies and Ethernet ports.