Tripp Lite Serial over Cat5 / Cat6 RS232 Extender, Transmitter and Receiver (B165-101) Locates an RS-232 Serial device up to 1,000 Meters from your system Supports full-duplex data communication Low cost solution that provides remote access and control of any RS232 protocol device No software or drivers required...Plug-n-Play Compatible with all RS-232 protocols