Definition of - Serial Digital Interface

Serial Digital Interface
Serial digital interface (SDI) refers to a family of video interfaces standardized by SMPTE.[1] For example, ITU-R BT.656 and SMPTE 259M define digital video interfaces used for broadcast-grade video. A related standard, known as high-definition serial digital interface (HD-SDI), is standardized in SMPTE 292M; this provides a nominal data rate of 1.485 Gbit/s.
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