The HDMI cable is an abbreviation for high-definition multimedia interface cable with a maximum data transfer speed of 5Gbps, capable of transmitting uncompressed HD video and multi-channel audio data.
Structure of HDMI cable
Material: high-quality injection iron powder core + double-sided 4-layer aluminum foil and high-density double-layer shield woven mesh + pure copper tin-plated anti-oxidation core + plug copper shell gold-plated 15U.
Interface: According to difference between electrical structure and physical shape, HDMI interface can be divided into four types: Type A, Type B, Type C, and Type D. Each type of interface consists of a socket for the device end and a plug for the wire end, driven by a 5V low voltage with an impedance of 100 ohms.
Application ofHDMI Cable
Mainly used in plasma TV, HD player, LCD TV, rear projection TV, projector, DVD recorder/player, D-VHS recording/player and digital audio and video display device for video and audio signal transmission.
About the usage of HDMI Cable (taking a computer connected to a TV as an example)
1. First confirm whether the computer and TV have HDMI interface. If not, you can use DVI-HDMI adapter cable or VGA-HDMI adapter cable.
2. Connect the HDMI cable to the HDMI port of the computer and TV.
3. There will be two desktops in the right-click property of the desktop.
4. Click on the 2nd screen, then click on the bottom to expand the desktop to the screen, and the desktop will extend to the TV.
Tips when using HDMI Cable
1. It is necessary to avoid excessive bending of the wire. For example, it is possible to damage the wire core or the shielding layer of the wire. It is generally curved along an arc without damaging the cable.
2. Pay attention to the interface gold-plated brightness, the HDMI cable with good quality on the market is 24K gold-plated, which can effectively solve the problem of poor contact after plug insertion and removal, so as to avoid the problem of signal loss and affect the picture effect.
3. Before wiring, you must use the equipment to test the quality of the wire before it can be officially laid. When placing the wire, wear the dust cap to wrap the waterproof glue at both ends, try to open the groove, do not pull the pipe, do not twist and knot. In order to avoid damage, the internal capacitance and characteristic impedance structure of the HDMI cause distortion of the signal.
4. HDMI connector is relatively fragile, it is recommended to bury two lines above for spare when laying the line, must be isolated from the strong electric line.