SDI Cable 20f

Description

SDI interface is a "digital component serial interface", while HD-SDI interface is a broadcast-level high-definition digital input and output port, where HD represents high-definition signal. Since the SDI interface cannot directly transmit compressed digital signals, the compressed signals recorded by digital video recorders, hard disks and other equipment must be decompressed and output through the SDI interface before entering the SDI system. Repeated decompression and compression will inevitably lead to the degradation of image quality and increase of delay. For this reason, various digital video recorders and non-linear editing systems with different formats have specified their own interfaces for direct transmission of compressed digital signals.