D-sub
nounEtymology Clipping of D-subminiature, from the Cannon part numbering system where such connectors’ designations are prefixed with D.
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Business, Electrical engineering, Electricity, Electromagnetism, Electronics, Energy, Engineering, Natural sciences, Physical sciences, Physics an electrical connector with two or more rows of pins or sockets surrounded by a D-shaped metal shield
- Some serial ports use a 25-contact D-sub, but with few exceptions, a 25-pin serial D-sub on a PC is male, with the female connector on the cable—the reverse of the parallel-port convention. (Other serial ports use 9-pin D-subs instead.)1996, Jan Axelson, Parallel Port Complete: Programming, Interfacing & Using the PC’s Parallel Printer Port:
- Synonyms
- D-subminiature
- Hyponyms
- parallel port, serial port