What can be programmed in a VDS switcher ref. 2450 and what is it for?
In two entrance video entry
installations you need to use a VDS switcher ref. 2450. It is not
necessary in systems in which one of the accesses is audio only.
Its
purpose is to select the video signal of the panel from which the call
has been made. This selection is via a signal (negative) sent from this
panel through an āSā wire.
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