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).

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 ?
56 DB15 pistol that utilizes a gas-operated system.
Units are available with RJ45, DB9, and DB15 connectors.
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.
0 ports; one RJ-45 gigabit Ethernet LAN port; one DVI-D female connector and one DB15 VGA connector; five SMA female-connector holes for external antennas; extensive digital I/O (1 x 8 bit digital I/O, and audio (line-out and mic-in)).
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.
5Gbps digital) SDI via its BNC connector and analog (Y, Pb, Pr) HDTV video outputs directly from the DB15 connector on the rear panel.
It includes a robust set of I/O with a VGA DB15 output, (2) USB2.
Xilinx Devices on Board: XC4VLX25-FF668-10C, XC95144XL, XCCACE (System ACE CF), XCF32P (32Mb Platform Flash) -- Clocks: 100 MHz Oscillator, 2 Clock Sockets, 2 Clock SMA input and output pairs -- Memory: 64 MB DDR SDRAM, 1MB ZBT SRAM, 8MB Flash, 4 KB IIC EEPROM -- Display: 16x2 Character LCD, DB15 VGA output -- Configuration: SystemACE, PlatformFlash, Flash, PC-4 JTAG cable -- Networking: 10/100/1000 Ethernet PHY with RJ-45 Connector -- Connectors and Interfaces: 2 PS/2 Connectors, 4 Audio Jacks, RS-232 Serial Port, 3 USB, 64-Bit User Expansion Connector -- General Purpose I/O: Buttons, LEDs, and DIP Switches About Xilinx Virtex-4 Platform FPGAs
This unique set-top box features three different scalable outputs for extreme flexibility; Y, Pb, and Pr Component, RGBHV (Red, Green, Blue, Horizontal Sync, Vertical Sync), and DB15 (RGB).
It includes a front panel-mounted standard high-density DB15 for SVGA/CRT output.
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.