Analysis of Security Video Line Classification and Selection

The video line is intended to transmit video signals. It is used to connect media playback devices and display devices. The media playback devices include DVD players, HTPCs, (VCD players, VCRs are not mentioned), video cables have the following :
AV cable: This is the oldest video cable to transmit analog video signals. The ends are the Lotus head (RCA head). Currently, DVD players and TVs will have such an interface. This type of cable is not required for decoration.
S-line: In previous years, there appeared video lines with better quality than AV cables. The interface was circular, similar to the PS2 mouse head. This line was also behind, and it was not recommended. The three-color difference line: S-line than the line Better-quality video cables, which carry analog signals, should now be the best video cable in analog signals. Newer DVD players, high-end TVs, and home projectors will all come with this interface. If your playback device and display device are relatively far away, the color difference line should be considered when decorating.
VGA line: also an analog signal video line, the most common in the computer, the signal and the color difference line have their advantages, but with the increase of the amount of video data, such as the future to transmit 1920X1080P video signal, then the color difference line redundancy It will be larger. After the resolution exceeds 1600x1200, the quality of the VGA line will be slightly later and the length will be longer when it will cause snow. Why do home theaters mention VGA lines? That's because the HTPC goes into the home theater. All projectors come with a VGA connector. The VGA cable is also the kind of wire that must be considered when wiring.
DVI cable: Full name Digital Visual Interface, the latest digital video cable , transmits all digital signals with no compression technology, and the maximum transmission speed is 8Gbps. Currently, the digital video signal cable supported by most manufacturers has an interface transmission speed of up to 8Gbps, and its interface has 24 interfaces. +1 (DVI-D), 24+5 (DVI-I) type, DVI-I supports simultaneous transmission of digital (DVI-D) and analog signals (VGA signals). In general, HTPC graphics cards are generally DVI-I interfaces. , And the LCD monitor, the projector is a DVI-D interface. Although the DVI-I interface is compatible with DVI-D interface, but the DVI-I plug is not inserted DVI-D interface, why? Four more needles. But we still have a way to use a DVI-I to DVI-D converter.
HDMI cable: Full name Hi-DefinitionMultimediaInterface, digital video cable than DVI update, transmits full digital signal with no compression technology, the maximum transmission speed is 3.95Gbps, HDMI also supports eight channels 96kHz or mono 192kHz in addition to transmission of video Digital audio transmission, but there are not many devices that currently support HDMI. Its interface can be converted with the DVI interface (video signal section).

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