Industrial Serial Port Connecting Server with 16 Serial ports and 2 Ethernet ports. NP3116T-16D (RS-232/485/422)-P(85/265VAC) is a serial port connecting server that can provide serial device with network connectivity. It provides 16 ports RS-232/485/422 and 2 channels 85~265VAC power input, two IP addresses and two MAC addresses for convenient bridging on two network segments, which allows the scattered serial devices and hosts to be centrally m..