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D-sub connector: Difference between revisions
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See [https://en.wikipedia.org/wiki/D-subminiature Wikipedia] for details. | See [https://en.wikipedia.org/wiki/D-subminiature Wikipedia] for details. | ||
They were ubiquitous in computer applications from the 1960s to the early 21st century and are still in widespread use in industrial applications. Many data communication standards specify D-sub connectors, e.g [https://en.wikipedia.org/wiki/RS-232 V.24/RS-232] (DB-25 connector), [https://en.wikipedia.org/wiki/X.21 X.21] (DA-15 connector), etc. | They were ubiquitous in computer applications from the 1960s to the early 21st century and are still in widespread use in industrial applications. Many data communication standards specify D-sub connectors, e.g | ||
[https://en.wikipedia.org/wiki/RS-232 V.24/RS-232] (DB-25 connector), [https://en.wikipedia.org/wiki/X.21 X.21] (DA-15 connector), etc. | |||
There are five basic shell sizes, DA through DE (see illustration). | The D-sub series of connectors was introduced by [[wikipedia:Cannon (ITT Corporation)|Cannon]] in 1952. | ||
There are five basic shell sizes, DA through DE (see illustration). Cannon's part-numbering system used D as the prefix for the whole series, followed by one of A, B, C, D, or E denoting the shell size, followed by the number of pins or sockets, followed by either P (plug or pins) or S (socket) denoting the gender of the part. Each shell size usually (see below for exceptions) corresponds to a certain number of pins or sockets: A with 15, B with 25, C with 37, D with 50, and E with 9. For example, DB-25 denotes a D-sub with a 25-position shell size and a 25-position contact configuration. | |||
Special versions of D-shell connectors exist that replace some groups of contacts with coaxial or high-current inserts. Examples include the video signal connectors on 1990s Sun workstations, and the interface connectors on [[:Category:11800 series sampling plugins|Tektronix SD-series sampling heads]] (see photos). | However, this naming pattern is not always followed. Because personal computers first used DB-25 connectors for their [[wikipedia:Serial port|serial]] and [[wikipedia:Parallel port|parallel]] ports, when the PC serial port began to use 9-pin connectors, they were often labeled as DB-9 instead of DE-9 connectors, due to an ignorance of the fact that B represented a shell size. It is now common to see DE-9 connectors sold as "DB-9 connectors". DB-9 nearly always refers to a 9-pin connector with an E size shell. | ||
Originally, all versions except DD had two rows of contacts. Later, "high density" versions with extra rows were added, the most widely used of which is the familiar DE-15 VGA connector. | |||
Special versions of D-shell connectors exist that replace some groups of contacts with coaxial or high-current inserts. | |||
Examples include the video signal connectors on 1990s Sun workstations, and the interface connectors on [[:Category:11800 series sampling plugins|Tektronix SD-series sampling heads]] (see photos). | |||
==Uses in Tektronix equipment== | ==Uses in Tektronix equipment== | ||
The DB9 connector can be found on Tektronix products like the . | |||
* DB-25 female in instruments having [[:Category:Parallel printer interface|parallel ("Centronics") printer ports]] | * DB-25 female in instruments having [[:Category:Parallel printer interface|parallel ("Centronics") printer ports]]; [[2792]], [[2794]], [[2795]]; [[2797]]; | ||
* DE-9 male (on older instruments, DB-25 male) on many instruments having [[:Category:RS-232 interface|RS-232 serial interfaces]] | * DE-9 male (on older instruments, DB-25 male) on many instruments having [[:Category:RS-232 interface|RS-232 serial interfaces]]; [[2782]], [[2784]]; | ||
* | * DA-15 female on instruments with VGA video output | ||
* DD-50 on [[DF1]] (m) / [[7D01]] (f) | * DD-50 on [[DF1]] (m) / [[7D01]] (f) | ||
* DD-50 with four coaxial inserts in [[:Category:11800 series sampling plugins|11800 series sampling plugins]] | * DD-50 with four coaxial inserts in [[:Category:11800 series sampling plugins|11800 series sampling plugins]] | ||
| Line 25: | Line 33: | ||
11800-connector-f.jpg | 11800-connector-f.jpg | ||
</gallery> | </gallery> | ||
'''DB-15''' | |||
<gallery> | |||
DB15_Male_Female.jpg | "Male" and "Female" DB15 Connectors | |||
D-Sub_Mechanical Drawing.jpg | Mechanical drawing | |||
</gallery> | |||
'''DB-25''' | |||
<gallery> | |||
DB25_Male_Female.jpg | "Male" and "Female" DB25 Connectors | |||
D-Sub_Mechanical Drawing.jpg | Mechanical drawing | |||
</gallery> | |||
'''DC-37''' | |||
'''DE-9''' | |||
<gallery> | |||
DB9_Male_Female.jpg | "Male" and "Female" DB9 Connectors | |||
D-Sub_Mechanical Drawing.jpg | Mechanical drawing | |||
</gallery> | |||
'''DE-15''' | |||
[[Category:Low-voltage connectors]] | [[Category:Low-voltage connectors]] | ||