SDI interface English full name is "serial digital interface", the Chinese meaning is digital component serial interface. Serial interface is very different from other video interfaces, it is the interface that transmits each bit of the data word and the corresponding data sequentially through a single channel. Due to the high data rate of serial digital signals, they must be processed before transmission. Instead of earlier packet coding, non-return-to-zero inversion (NRZI) of scrambling codes is used, with standards SMPTE-259M and EBU-Tech-3267, which include digital composite and digital component signals including digital audio.
Functions:
Sync lock with loop-through: SD analog black level (bi-level) or HD tri-level sync
HDMI inputs, outputs, and monitors with calibration including Pure Blue Mode
10-bit real-time hardware up/down/cross-conversion inputs/outputs
Professional audio inputs and outputs
Support for selectable multiple video channels. >Support for selectable multiple simultaneous video outputs: HD and SD HDMI, SDI and analog