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The various serial digital interface standards all use (one or more) coaxial cables with BNC connectors, with a nominal impedance of 75 ohms. This is the same type of cable used in analog composite video setups, which potentially makes for easier "drop in" equipment upgrades (though may be necessary for long runs at the higher bitrates for older oxidising or lower grade of cable to replaced ...
The signal format that the router transports can be anything from analogue composite video using PAL and NTSC. Also multi-format routers can route more than one Digital video signal format, serial digital interface (SDI), HD-SDI, component video. Some routers have the ability to internally convert digital to analog and analog to digital.
Serial digital interface (SDI) and HD-SDI. CoaXPress; 75 Ω for video signal (SDI and CoaXPress) on, for example, RG59 and RG6. 50 Ω for data link, like Ethernet on RG58. 93 Ω on RG62. 50 Ω (white/bottom row) and 75 Ω C connectors (red/top row) C connector (Concelman connector) General Radio 874 connectors GR connector (General Radio connector)
SMPTE 292 is a digital video transmission line standard published by the Society of Motion Picture and Television Engineers (SMPTE). This technical standard is usually referred to as HD-SDI; it is part of a family of standards that define a serial digital interface based on a coaxial cable, intended to be used for transport of uncompressed digital video and audio in a television studio ...
If an SDTI stream is viewed using a standard SDI device, then the raw data can be seen as a small strip along the left-hand side (usually in purple). The DVCAM SDTI has video data at the top, control data in the middle (Timecode, etc.) and audio at the bottom just like it is organised on the tape.
Network Device Interface (NDI) is a software specification developed by the technology company NewTek. It enables high-definition video to be transmitted, received, and communicated over a computer network with low latency and high quality.
A device cannot initiate a transfer; it can only reply to host requests. Image data on the bus is interleaved with signals for horizontal and vertical blanking intervals (porches). The data is drawn to the display in real time and not stored by the device. This allows the manufacture of simpler display devices without frame buffer memory.
A GMSL serializer receives video from a standard digital video interface such as HDMI, DisplayPort, Camera Serial Interface (CSI-2) or Display Serial Interface (DSI) and can transmit it over a cable of up to 15 m in length. [5] The data is received by a GMSL deserializer that can output it on another standard digital video interface.