What is video loop back?
Video loop back is a feature of Extron system switchers that allows selected inputs to be looped out of the system switcher to a scaler or scan converter and then looped back into the System. The result is the switcher and the scaler or scan converter essentially operate as one unit. Therefore, even if several composite sources need to be scaled, then only one scaler will be needed instead of a scaler at each input to the switcher.
