In security engineering project,for these weak cables which beused for the transmission of video signals、control signals and other data in formation,they are collectively referred to as safety cables,the mainly product is RF cable.

RF cable firstly appeared on the TV.The original meaning is Radio Frequency.It is the interfacemode adopted by family cable TV.

The theory of the RF image is hybrid coding the CVBS's single and audio's single to output,then having a series process of apart&decode in the displaydevice and output the imaging.