Shulou(Shulou.com)06/02 Report--

This article is about what interface d-sub refers to. The editor thought it was very practical, so I shared it with you as a reference. Let's follow the editor and have a look.

D-sub is an analog signal or digital signal interface; d-sub only describes the connection structure, itself does not define the whole interface or the role of all pins, its common is DB25 and DE9, the typical applications on personal computers are VGA, parallel port, COM serial port.

VGA terminal (Video Graphics Array (VGA) connector), other names include RGB terminal, D-sub 15, or mini D15, is a 3-row 15-pin DE-15. VGA terminals are usually found in computer display cards, monitors and other devices. Is used to send analog signals.

D-sub only describes the connection structure and does not define the entire interface or the role of all pins. The most common are DB25 and DE9. The typical applications on personal computers are VGA (DA15 female), parallel port (DB25 female head) and COM serial port (DE9 male). These interfaces are being replaced by DVI, HDMI, RJ45 Ethernet ports and USB. DE9 was misread as DB9 after the popularity of personal computers, and over time DB9 became an alias for DE9, and for other stitches of D-sub, DB is now used to address relatively more.

DA-15

VGA, using D-Sub 15 interface, there are 15 pinholes, divided into three rows, five in each row. Due to the reasons of design and manufacture, CRT color display can only accept analog signal input, the most basic includes five components of RGBHV (red, green, blue, row, field). No matter what type of interface is used, the signal at least contains the above five components. The most common interface for most PC graphics cards is Dmur15, that is, D-shaped three-row 15-pin sockets, some of which are useless and the signal lines used for connections are also vacant. In addition to these five indispensable components, the most important thing is to add DDC data components to the color display after 1996, which is used to read the information recorded in the display EPROM about color display brand, model, production date, serial number, index parameters and so on, so as to achieve the PnP (plug and play) function required by WINDOWS. Almost all CRT have this interface.

The VGA terminal (other names include D-sub 15, or mini D15) is a 3-row 15-pin DE-15. VGA terminals are usually found in computer display cards, monitors and other devices. Is used to transmit analog signals.

Generally speaking, the 9th pin is not connected, but for the new connection that supports DDC1, the 9th pin will be used, so the older monitor will not work properly.

Thank you for reading! This is the end of what interface d-sub refers to. I hope the above content can help you to some extent, so that you can learn more knowledge. If you think the article is good, you can share it and let more people see it.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.