A 25-pin connector borrowed from the computer world, where it's been used for both serial and parallel ports; sometimes used for controlling audio gear by computer or, on THX gear, to connect multiple audio channels with one cable. Also used in custom installations where numerous cables must be bundled.
A 25-pin D-shell connector. This is the standard connector used for serial connections.
The designation of a standard plug-and-jack set used in RS-232C wiring: 25-pin connectors, with 13 pins in one row and 12 in the other. ... more
communications: A large 25-pin connector for serial ports used by some printers and many other brands of computers.