SDI (Serial Digital Interface) is a family of digital video interfaces used for broadcast-grade video transport. Here are some key
points about SDI:
* Transmits uncompressed, unencrypted digital video signals over coaxial cable.
* Offered in HD-SDI, 3G-SDI, 6G-SDI, 12G-SDI formats to support different video resolutions and frame rates.
* HD-SDI supports up to 1080i/1080p video, 3G-SDI supports 1080p at high frame rates and 4K UHD, 12G-SDI supports 4K at 60 fps.
* Uses BNC connectors for cable connectivity. Locking connectors available for secure mating.
* Can transmit audio, reference signals, timecode, control data together with video over the same coax cable.