In the field of audio and video, a video distributor is a device that can divide a video signal into multiple synchronous video outputs and has the ability to amplify the video signal; generally within a short distance, the output video images are synchronized in real time and do not affect each other.
Common video distributors include: 1 in 2 out, 1 in 4 out, 1 in 8 out, 1 in 16 out, 1 in 24 out, 1 in 32 out, 2 in 8 out, etc.; more advanced video distributors also support multiple identical machines cascaded to expand more output interfaces and lossless video output.
According to the different video input and output interfaces, video distributors can be roughly divided into: HDMI video distributor, DVI video distributor, VGA video distributor, SDI video distributor, DP video distributor; each type can have 2, 4, 8, 16, 24, 32 and other output interfaces; it is worth mentioning that VGA video generally does not carry audio, and some advanced VGA video distributors also support 3.5mm audio and VGA video synchronization; like HDMI video distributors and DP video distributors that carry audio, they directly support audio and video synchronous transmission.
The main function of the video distributor is to expand the video signal source into multiple video outputs, which is convenient for connecting to multiple display devices. The most common is to divide the video signal into multiple channels and connect them to multiple display devices to display displays, such as display stores and TV stores in shopping malls; in addition to these, it can also be used in high-speed rail stations, airports, etc., to display train or flight information in multiple channels to facilitate passengers' travel.
