crossover ethernet cable interface is a dedicated audio and video interface having an input and an output, support three video signal format, i.e. CVBS (composite video signal), YC (component video signal) and the signal format of RGB, the input can be MCU detects the level of the FB pin SCART interface, compared to less than 1V if the RGB, otherwise CVBS / YC. For connecting the TV and the VCR SCART interfaces addition, SCART interface or two-way transmission, to achieve the so-called "LOOP" circulation. It was developed by the French company Peritel interconnect industry standard audio-visual equipment, is Europe's mandatory requirements for interconnection interfaces satellite TV receivers, TV sets, video recorders and other audio and video devices. SCART interface standard 21-pin connector, right angle trapezoidal shape, commonly known as "broom head." This 21-pin defines the audio and video signals can be used to transmit RGB signals CVBS and crossover ethernet cable interlaced video signal can also send stereo audio signals. 21-pin 21 while the transmission signal, which signal can be divided into 21 video signals, audio signals, control signals, ground, and data of several lines. European SCART interface is a universal video interface. Edit this paragraph scart cable transmission signal transmission in three ways: 1) CVBS and RGB three primary colors, a sound signal 2) and only the transmission voice signal CVBS 3) S-Video and audio transmission signal