Perle IOLAN Serial Device Servers offers quick and easy connectivity for existing equipment with RS232/422/485 interface via LAN or Ethernet. These advanced Serial Device Servers are the best choice when connecting asynchronous pheripials like modems, POS-terminals, printers and other industrial IT-equipment with serial COM-ports via LAN to cetralized UDP or TCP socket-based applications. There are several different available models with 1-32 ports, and versions with support for 48VDC, Extended Temperature Range, Power Over Ethernet (PoE), Universal High Voltage AC/DC, Hazardous Environment (Class 1 Division 2 Certification) or with built-in V.92 modem. Read more about the different models here: http://www.perle.com/products/device_server.