An earlier RS-232 cable used to connect two computers in close proximity for file transfer. In style before the USB interface came out, a null modem cable attached to the serial ports of both machines ...

The classic serial null-modem cable was, among other things, used to connect two computers together for communications and file transfer. Largely eliminated in daily use by the advent of home ...

Not open for further replies.

Some serial devices require what's called a null modem cable that makes each device think it is connected to a modem rather than to a computer or a serial device. The simplest null modem cable (a) ...