The SDI interface is actually a "digital component serial interface". It is an acronym for serial digital interface. The SDI interface adopts digital signal transmission and needs to be paired with the corresponding SDI head and receiving end to use it. SDI interface generally uses coaxial cable, with BNC interface as the cable specification, and the effective transmission distance is up to 100M.
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SDI interfaces are divided into categories 1-4 according to the transmission rate. Depending on the transmission rate, the resolution of the output image signal will vary. The higher the resolution, the higher the transmission rate requirements. The SDI interface is widely used in the field of cameras. The currently used SDI interface is divided into:
1. SD-SDI can only transmit standard definition signals, that is, 720*576 and below resolution signals.
2. HD-SDI can transmit 1080P30fps signal.
3. 3G-SDI can transmit 1080P60fps signals.
4. 12G-SDI can transmit 4K60fps signal.
Therefore, if you need to purchase cameras, surveillance cameras and other equipment, you need to pay attention to the performance standards of the SDI interface. In order to make the right choice.
