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Vertical Interval Switching
When the switching between inputs, the resulting image change should be
seamless and clean. Vertical interval switching makes this seamless image change
possible. MSG switchers are able to provide vertical interval switching by using an
external sync (genlock) signal to synchronize switching during the vertical sync
interval. Without external sync locking, switching between inputs can result in a
brief rolling (sync loss) or a brief change in the picture size. If no external sync
timing source is connected to the switcher, switching occurs immediately.
Connecting the external sync signal
The Genlock In connector of the MSG switcher receives the external sync timing
signal. The Genlock Out connector allows the signal to be passed on to another
video device, if required.
To enable vertical interval switching, connect an external sync signal (from an
Extron BBG6A Blackburst Generator or other source) to the Genlock In BNC
connector (
) for genlocking the video signal in broadcast or other sync-critical
3
applications. Connect any downstream equipment that requires genlocking to the
Genlock Out BNC connector to route the external sync signal through the switcher.
2-7
MSG Matrix Switchers • Installation
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