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.


References in periodicals archive ?
The dedicated circuit measures the ECG signal via the electrodes placed on the surface of the body, using a standard DB15 female connector.
com)-- Electro Standards Laboratories introduces Model 9141 DB15 Transceiver A/B Switch Module with Slide Latch.
56 DB15 pistol that utilizes a gas-operated system.
Other I/O features include a VGA DB15 output, two USB2.
The unit features PCZTV which is an integrated VGA and Mac Scan Conversion Technology JackPack that includes a high density DB15 input terminal.
These are also referred to as DB25, DB15, or DB9 connector ports There is no electrical contact made to the interface port of its pins.
Now available for purchase, the Docking Station houses a DB15 High Density (female) VGA port, as well as four USB A (female) ports, one USB Mini B (female) port, one RJ45 (Female) 10/100Mbps network port, and two 3.
Model 4293 Fiber Switch may be controlled manually with five front panel pushbuttons or remotely via the DB15 Remote port located on the rear of the unit.
5Gbps digital) SDI via its BNC connector and analog (Y, Pb, Pr) HDTV video outputs directly from the DB15 connector on the rear panel.
Units are available with RJ45, DB9, and DB15 connectors.
The DB15 remote port of the Model 7300 accepts contact closure signals from a Model 4077 or other similar device to remotely attain switch position status or remotely control the switch position and mode.
Additionally, an existing analog display can be connected to the Gemini DVI card using a converter plug that converts the DVI connector into a standard VGA DB15 connector.