Extron-electronics MSG0808 User Manual download pdf (Page 17)

MSG Matrix Switchers • Installation

2-7

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

applications. Connect any downstream equipment that requires genlocking to the

Genlock Out BNC connector to route the external sync signal through the switcher.

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Extron-electronics MSG0808 User Manual Page 17