RS-232 switch from Black Box
RS-232 Switch - Use the Remote Management Switch to switch one master RS-232/V.24 asynchronous channel between up to four ports using simple codes or easy menu commands.
RS232 switch
An Electronic Industries Association (EIA) recommended standard for the mechanical and electrical interface that specifies a DB25 connector. It is identical in function to the ITU standard V.24/V.28.
Remote, out-of-band management for four RS-232/V.24 ports and four power outlets.
Hot new product: Remote Management Switch: RS232 switch