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proAV

Support For Integrators & Commercial Installations

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processor control, video routing, installation design, integration issues, and OpenAPI questions for proAV devices.

  • Commercial installations, processors, switchers, scalers, and distribution systems
  • OpenAPI control questions for proAV devices
  • System integration, deployment, and troubleshooting across installed projects

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Terminology / Interfaces / SDI

SDI

(Serial Digital Interface)

A broadcast-grade interface standard defined by SMPTE for transmitting uncompressed digital video over coaxial cable, typically with BNC connectors as interfaces between equipment.

Variants are distinguished by transmission rate:

HD-SDI (SMPTE 292M)

Transfer rate of 1.485 Gbps; supports 720p and 1080i.

3G-SDI (SMPTE 424M, released 2006)

Transfer rate of 2.97 Gbps; supports 1080p @ 60 Hz.

6G-SDI (SMPTE ST 2081, released 2015)

Transfer rate of 6 Gbps; supports 2160p @ 30 Hz.

12G-SDI (SMPTE ST 2082, released 2015)

Transfer rate of 12 Gbps; supports 2160p @ 60 Hz.