Industrial Device Server with 8 Serial ports and 2 Ethernet ports. The NP3XXT 3IN1 series are serial-to-Ethernet device servers that enable the serial device to have networking capabilities immediately. They support 4/8-port RS-232/485/422 serial port and 1/2-port 10/100Base-T(X) Ethernet interface optional. The serial device server can easily and centrally manage distributed serial devices and hosts through the network, support TCP, UDP, ARP, IC..