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D-subminiature connectors are often used in industrial products, the DA-15 version being commonly used on rotary and linear encoders. DB-19 connector for an external floppy drive on a Macintosh 512K. The early Macintosh and late Apple II computers used a non-standard 19-pin D-sub for connecting external floppy disk drives.
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The historical connector used by MDA, EGA and CGA graphic cards is a female nine-pin D-subminiature . The signal standard and pinout are backward-compatible with CGA, allowing EGA monitors to be used on CGA cards and vice versa. Early VGA cards also used this connector. VGA connector (DE-15)
The following other wikis use this file: Usage on az.wikipedia.org DB bağlayıcısı; Usage on ca.wikipedia.org D-sub; Usage on cs.wikipedia.org
The VGA connector is a three-row, 15-pin D-subminiature connector referred to variously as DE-15, [2] HD-15 or commonly DB-15(HD). DE-15 is the accurate nomenclature under the proprietary D-sub specifications: an "E" size D-sub connector, with 15 pins in three rows.
The B7G (or "small-button" or "heptal") seven-pin miniature tubes are smaller than Noval, with seven pins arranged at 45-degree spacing in a 9.53 mm (3/8th inch) diameter arc, the "missing" pin position being used to position the tube in its socket (unlike octal, loctal and rimlock sockets). Examples include the 6AQ5/EL90 and 6BE6/EK90.
D-subminiature connectors are used to carry balanced analog or digital audio on many multichannel professional audio equipment, where the use of XLR connectors is impractical, for example due to space constraints.
The only connector specified in the original RS-232 standard was the 25-pin D-subminiature, however, many other connectors have been used to save money or save on physical space, among other reasons. In particular, since many devices do not use all of the 20 signals that are defined by the standard, connectors with fewer pins are often used.