What is a vga cable interface?

vga cable connector is a D-type interface, is an analog signal, a total above 15 pinholes, divided into three rows, each row five. Wherein, in addition to 2 NC (Not Connect) signal, data bus, and the display 3 5 GND signal, the more important is the three RGB component signal and two color scanning synchronization signal HSYNC and VSYNC pin Vga extension cable color component using the interface RS343 level standards. RS343 level standard peak voltage of 1V.
VGA connector on the graphics card is the most widely used type of interface, the majority of graphics cards come with such an interface.
Common Vga extension cable interface devices: computer graphics, display, VGA Matrix, VGA Splitter, VGA Switcher, RGBHV matrix. RGBHV matrix switcher, VGA monitor, VGA capture cards....

Using yourself infinite wisdom of the VGA cable

Unlimited extension of yourself making clever use of the network cable extension cord Decrease font Increase font Home in a variety of computer, digital, home appliances can be connected together to use, but Wisdom vga cable equipment in the bedroom, den, some also in the living room, they are moving up on the very trouble, use an extension cord it, even the most long extension cords are out of reach. Fortunately, when the home renovation embedded a 15 pin vga cable, then the equipment of each room you can use it to "connect" the. VGA extension cable such as televisions, projectors and other video devices are generally connected via VGA and computers, we can modify the network cable into a long vga extension cable, so do not move the computer, you can watch the content on the bedroom computer in the living room . First, use a knife to cut open the cable sheath, length of about 3cm, revealing eight different colors of tiny wires. Use wire strippers to each thin strip of insulation around 1cm. Then deal with the other end of the network cable using the same method. Got a pair of detachable VGA adapter, you need to select the appropriate male or female depending on the interface type of device. The next step is welded, open VGA connector housing, a control pin connection diagram will correspond to a small line of welding cable and VGA connector. Note welding wire well insulated, do not short-circuited. After the welding is good, then close the lid on the joint, you can achieve a long-distance transmission of video signals. If your USB device is relatively large, inconvenient to move, but also a shorter USB cable, you can also use the network cable to create a USB extension cable.
First cut the original USB cable is designed to get two USB connectors. Respectively the network cable and the USB connector cable peel, due to the small USB cable is only 4, while cable has eight, then the extra white line network cable can be cut off. Before welding in order to put in the back of a small shrink tube insulation........................

hdmi extension cable and introduced a major role

HDMI's English name is "High Definition Multimedia", in Chinese means High Definition Multimedia Interface. HDMI interface can provide data transfer bandwidth up to 5Gbps, can transmit audio signals without compression and high-resolution video signal. At the same time  WISDOM server cabinet without having to send the signal before the D / A or A / D conversion, hdmi extension cable can guarantee the highest quality audio and video signal transmission. The benefits of using HDMI is: only one HDMI cable, you can transmit audio and video signals simultaneously, unlike now need to connect multiple wires; Meanwhile, the wireless digital / analog or analog / digital converter, can achieve higher audio and video transmission quality. For consumers, HDMI technology not only provides a clear picture, and because the audio / video using the same cable, which greatly simplifies the installation of a home theater system. hdmi extension cable high-definition digital multimedia interface (High-definition Digital Multimedia Interface) HDMI 1.0 standard promulgated. On WISDOM 12 port patch panel  pin HDMI and DVI compatible, but with a different package. Compared with DVI, HDMI can transmit digital audio signals, and adds support for HDCP, while providing a better DDC optional features. HDMI supports data transfer rates of 5Gbps, can transmit as far as 15 meters, sufficient to meet a 1080p video and an 8-channel audio signals. And because the audio signal needs a 1080p video and an 8-channel is less than 4GB / s, HDMI therefore WISDOM hdmi switch  there is a great margin. This allows it to be connected with a DVD player, cable receiver and the PRR. Also HDMI supports EDID, DDC2B, and therefore has the HDMI device has a "plug and play" feature, automatically "consultation" between the source and display devices, automatically selects the most appropriate video / audio formats As prolong color on color No access to drawings

the development of some of the problems vga cable

In recent years, China's wire and cable industry to flourish and made remarkable achievements, but compared with their foreign counterparts still in the emerging, low level of technology status, independent innovation ability, the product structure is irrational, affordable products  WISDON 90 degree hdmi cable overproduction , and high-tech, low proportion of high value-added products production, industry chain is not perfect. In this regard, the industry's appeal should strengthen supervision and standardize the development of wire and cable industry.
"At present, the domestic wire vga cable market, prices of many small and medium enterprises to become competitive weapon. Due to the wire and cable materials are typically heavy, light engineering industry, the  mini usb cable price of raw materials accounted for 70% to 80% of the cost, therefore, the pros and cons of raw materials largely affect the quality of wire and cable products, according to statistics, China's cable manufacturing enterprises reached 7000, but the scale cable companies much more of a small business, the production of wire and cable industry concentration low, the biggest share of the enterprise market, but also in the amount of 1% to 2.5%. currently on the national wire and cable market, shoddy, fake, defective products is very serious, and rj45 modular jack  even some "free product" there are quality case of non-compliance. Additionally, the industry regulator there "just punishment regardless of" phenomenon, this situation has also led to the wire and cable industry difficult. Currently, the domestic market wire and cable management is very confusing, in this circle there is an unwritten rule Even some of the manufacturers of quality from regular cable to the middlemen will become the "three noes" products.

WISDOM hdmi extension cable MDF uses

MDF is positioned in front of the central office of information points modular device management. The front of the information point cable ( Cat5e or 6 cable ) into the equipment room after the first into patch panels, patch panels will hit the line modules , patch panels and switches then connect a jumper (RJ45 interface) . Overall, the patch panel is used crossover ethernet cable to manage the device , for example, if there is no patch , direct access to the front of the information points to the switch , so that once the cable problems, faced to rewiring. In addition, the management is also a bit confusing, multiple plug may cause damage to the switch port. MDF exist to solve this problem by replacing the jumper to achieve better management.Dosage and overall network is mainly based on the number of points or the floor ( and similar floor , depending on how the system is designed diagram ) points to the number of network configurations . Different buildings , different system designs , patch panels are the main differences between the devices . For example, a building only four rooms , the master device is set on the first displayport to hdmi cable floor , all floors between network points are entering the device , then the patch is equal to the number of the building all network points / patch panel port number ( 24 mouth, 48 , etc. ) , plus got to margin ; If, on the 9th floor of a building has a room , the master device is set on the fourth floor , then in order to avoid long cable , it may partakers devices are located on each floor , and there is exchange equipment . So the main distribution frame between devices on the network is equal to the number of points / patch panel ports ( 24 , 48 , etc. ) 4 layers.

The key performance vga cable

Prefabricated branch cable and other cable products, is in the range of factory production equipment, which will be produced in assembly line of cable products. A good quality prefabricated branch cable, must WISDOM HDMI CABLE  be excellent performance of mining cables, because the performance of the cable is the basis of indicators of prefabricated branch cable products. For domestic product, its conductor, insulation performance, mechanical and physical properties of materials shall comply with the relevant national standards. Prefabricated branch cable quality measure factors including the main branch cable type, size, cross-section, length and branch locations and other WISDOM Displayport CABLE  indicators. Shanghai People's cable to bring you a detailed description of factors.
A branch connection body
   Critical to the performance of the branch connection body, which is the key performance prefabricated branch cable. Branch joins the main body of the cable and the branch cable conductor connected as a whole, and for insulation moisture treatment. Decided to branch connection body lies in material and workmanship, performance-critical branch joins the body, the majority of designers, the cable should be fully concerned with the quality of prefabricated WISDOM VGA CABLE  branch cable, choice of materials and production processes joints, tooling.
2, prefabricated branch cable resistance
  Contact resistance requirements and other branch cable length ratio of the reference resistor R1/R2 ≤ 1.2; when the main cable and the branch cable, respectively, by the rated current, heating for 5 hours, cooled 3 hours as one cycle, 25 cycles after the coupling the surface temperature does not exceed 75 ℃, after each cycle, the surface temperature of the joint surface temperature not higher than the first 25 cycles 8 ℃.

Some of the different characteristics vga cable

This is really quite incredible, but also proves that China 's wire and cable industry has been derived from the confusion within the industry to "foreign trade" , extending from the external publicity and marketing. And now, the government has introduced a certain ranking is a lack of authoritative business , but more interesting is that when the wire and cable WISDOM RAC CABLE manufacturers in the number of qualified applicants bid on the table , asked  to fill out impressively display the " enterprise in the industry Rank "or" enterprise market share in the industry "requirement . From the perspective of the relevant government departments, doing nothing wrong , was simply trying to understand the size of the business and marketing capabilities , but ignored the lack of such specialized rating agencies . The companies are often faced with such requirements have been caught unprepared , do not know how to fill .
Because of this , some companies have chosen to leave newspaper rankings, ranking greatly to his premise . There are only a few hundred or even a total number of employees, sales of less than $ 1 billion business , even in the " business in the country's market share" column, immodestly fill 3% , and this turned out to fill passed, ironic .
Some aspects of the lack of industry rankings , and  WISDOM Network Cabinet very worthy of attention each wire and cable manufacturers , such as , for now, the wire and cable industry to date, the lack of official ranking list released by the industry , whether it is the wire and cable industry associations, or local the wire and cable industry associations, have not done an accurate , authoritative , formal corporate rankings. But from the " qualified bid " process, we found that business was asked to fill in the rankings , scrambling to get business know what to do . We can not help thinking, maybe because when asked to fill out an application companies ranked qualifications , will lead to a variety of ranking on the Internet , including some of the manufacturer or small groups themselves casually fabricated wire and cable rankings, and  WISDOM VGA CABLE even their own businesses is negligible micro-enterprises , also among the prominent .
Such ranking is undoubtedly the lack of credibility , even those who have never heard of the cable companies ranked in the top ten or even the first business, and like those brilliant performance , the industry's well-known companies are ranked in more than 70 after that, not even a single rank of such a phenomenon can only be explained confusion wire and cable industry , has been constantly farce .