D-sub connectors

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D-sub connectors

(D-SUBminiature connectors) A family of plugs and sockets widely used in communications and on earlier PCs. For example, the analog VGA monitor interface uses a D-sub 15-pin plug and socket. Also called "DB connectors" and "D-subs," they come in 9, 15, 25, 37 and 50 pin varieties. The D-sub designation defines the physical structure of the connector, not the purpose of each line.

Technically Not Always DB
In the international DIN 41625 standard, the letters A through E define the number of pins and follow the D. Although called "DB connectors," the only true DB is the DB-25, because B means 25 pins (see illustration below).

DB-25
The female DB-25 was widely used in the past for the printer port on a PC (see printer cable). The male DB-25 was also the second serial port (COM2) on the PC when serial ports were popular. It is still widely used for RS-232 communications devices.

DB-9 (DE-9)
The male DB-9 connector (officially DE-9) was typically used for the first serial port on earlier PCs (COM1) as well as other communications devices. See serial port.

DB-15 (DA-15 and DE-15)
Two DB-15 connectors are widely used. The larger, two-row female DA-15 is the game port on a PC, and the smaller, three-row, female high-density DE-15 is the VGA port. See VGA and plugs and sockets.


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The DB50 was assisted by a fleet of up to 12 support vessels delivering material from various Gulf Coast fabrication and staging facilities to the offshore installation site.
McDermott's recently improved DB50 vessel will install the moorings before transporting the classic-design Spar hull to the installation site where it will be upended and ballasted before installing a temporary work deck.
McDermott's DB50 vessel will install the moorings before transporting the classic-design spar hull to the installation site where it will be upended and ballasted before installing a temporary work deck.
McDermott's deepwater combination heavy lift and pipelay vessel DB50 is expected to perform the installation.
Scott Munro, vice president for Americas, Europe and Africa, said, Were pleased to be able to provide an integrated approach involving our new spoolbase in Gulfport, the NO105 and the DB50 that addresses all project drivers to deliver the best overall solution.
The DB16 will install 36 miles of flowline using the S Lay method and the DB50 will install the 18 miles of umbilical.
We are pleased to have completed the sale of the charter fleet business during the quarter, and we expect both the new North Ocean 105 and the upgraded DB50 to be available for work this summer.
Offshore installation will be performed by McDermott's Derrick Barge DB50 in the same time frame as the installation of BG's NCMA 4a Hibiscus Compression Module.
McDermott is upgrading DB50 which will carry out installation of the Hibiscus module for BGT&T offshore Trinidad.
Our ability to offer a combined fabrication and installation solution with our construction vessel DB50 is what secured this contract.
Ray will mobilize its DB50 construction vessel from the U.
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