Can connect the host and monitor, vga cable contributed. So, do you know that the vga line is connected ? The most common vga lines are 15-pin and 9-pin. Although some high-end TVs or monitors now replace the vga line interface with the high-definition line interface, the vga usage is still relatively extensive. The vga connection between the computer and the host is relatively short and is easily available in the market. Longer vga lines need to be made with video cables and vga connectors. Let me introduce the relevant knowledge of vga line connection for everyone.
What is the vga line
The VGA cable is a monitor signal line that is often called an analog signal line. Now the high point is the DVI line, which is a high-definition digital signal line. It is more advanced than the VGA, but it requires a DVI connector.
Vga line composition
First of all, this line is composed of VGA interface plus data lines. The Vga interface is one of the categories of the D-type interface, with 15 pinholes and three rows of misaligned sorts. What do these pinholes mean? In fact, there are NC signal lines and buses used to display data. The three types of GND signal lines are used for signal transmission. In addition, there are RGB and HSYNC and VSYNC pins. They are color and scanned. Only these complete data lines can realize the role of vga cable.
Vga line effect
The VGA interface is the most extensive type, and its contribution to the graphics card is quite large. The current general video card supports this interface type. Even without the VGA interface, as long as it is used for display purposes, there will be a corresponding converter to convert the signal.
Now a considerable part of the host computer and the external display data transmission will pass an analog signal, this signal will be docked through the VGA interface. The image information in the host computer is all converted into R, G, and B using this line. They are the three primary color signals and the corresponding synchronization signals. Eventually they are transferred to the display device.
Afterwards, these analog display related machines, like CRTs, get the corresponding signals and are input to the processing circuit for corresponding processing. After processing, they are converted into images by the device of the drive picture tube. The vga cable action can cause the graphics card to process the corresponding information and display it on the display.
What are the vga line brands
Vga cable brand: Green Alliance. Shenzhen Greenlink Technology Co., Ltd. is mainly engaged in vga cable, HDMI cable, DVI cable and other products. Its product design is novel, its quality is excellent, and its sales network is spread all over the country. At the same time, it also cooperates with world famous brands Lenovo, Philips and Sony.
Vga cable brand: CE-LINK. Hong Kong Hain Electronics Co., Ltd. specializes in signal connection, conversion, switching and other fields. The products have passed the SGS ISO9001 quality management system certification and "CE-LINK" is its registered trademark.
Vga cable brand: music. Founded in 2002, Ningbo Lege Video Technology Co., Ltd. is mainly engaged in TV racks, audio and video cables, and has a good reputation. Its product sales volume ranks in the front rank.
Vga cable brand: sea preparations. Hai Beisi was established in September 2009, specializing in e-commerce network sales, its vga cable, HDMI cable ranking first in the entire network, affordable, excellent quality, won the consumer favorite.
Vga cable brand: as the shellfish. Xiamen Vision Technology Co., Ltd. was established in 1999. The company owns several independent intellectual property rights, and its products have passed many certifications such as CCC certification.
Vga cable brand: Sonic. The American brand Belfanllc entered the Chinese market in 2010. Its products are rich, involve a wide range of types, and can meet the diverse needs of consumers.
Vga line price
The price of a vga line depends on the length, one meter is about 15 yuan, 1.5 meters is about 18 yuan, 2 meters is about 22 yuan, 3 meters is about 28 yuan.
Note: This price is for reference only! Due to geographical differences, of course, the price will be different. For more details on the prices, please refer to the local distributors!
Vga line connection
The connection between the vga line and the network cable needs to accurately connect the non-root line to the corresponding connector. To accurately connect the various joints of vga must first understand their location and role. When we got a 15-pin vga connector, we could see that there were fifteen needle-like metal plugs inside. The 15 plugs have three plugs of blue, green, and red primary colors, four address code plugs, field sync and horizontal sync plugs, and self-test plugs. The middle five plugs are blue land, red land, green land and digital land, respectively. Two heads of the vga line are commonly referred to as male and female heads.
We need to poke the prepared vga cable before wiring, and strip 1 to 2 cm of copper wire from each end. First find out where the three wires are connected to the three primary colors, and find the three wires that are connected to the three-pin joints of red earth, green earth, and blue earth, respectively, one field scan, one scan, and one field scan line One, line scanning a ground line. After the joints in these locations are connected, the joints in other locations are left empty. If possible, you can also use shielded wires in the middle to ensure more complete signal transmission.
In the wiring, the requirements of each connector are different. When connecting the self-test, the address code and the blue color connector, it is better to use a thicker line, to connect the red primary color, the red earth, the line synchronization, and the field synchronization. The finest line is the best choice for the connector. When we unplug the VGA cable, we will see that there are many colors inside the cable. We will mistakenly think that different colors need to correspond to the corresponding connectors. In fact, the connectors of each color are the same transmission lines, and the colors do not need to be deliberately selected when wiring. After we have connected the first vga connector, we need to remember the connection position of each wire. After the copper wire is pulled at the other end, another vga head is connected to the video cable in sequence. A homemade extended vga line is completed.
Editing summary: The existence of this line has made a considerable contribution to the application of our display. We understand its principle, which provides a reliable basis for us to carry out new research in the future and new display signal applications.
Renovation Material Brand Brush Wall Paint Brand Home Brand Repellent Lamp Brand Curtain Fabric Price VGA Cable Connection
Machine Guard High Speed Doors
Nowadays, more and more automated machines are adopted in production line of factories. Workers need work together with these machines to finish whole production procedure. This may bring some dangers for people nearby the automated machine. Machine Guard High Speed Doors are specially used in production lines inside factory. Such rapid rolling doors enclose automated machines and protect nearby workers and avoid machine harms.
Machine Guard rapid doors, Machine guard automatic doors, Machine guard fast action doors, Machine protection high speed door, Machine protection rapid door
SHANGHAI KENVO DOOR CO.,LTD , https://www.kenvodoor.com