Appendix r, Production switcher input source assignment, For more information, see appendix r – Grass Valley VM 3000 System Controllers v.7.4 User Manual
Page 737: Production switcher
VM 3000 Installation and Operating Manual
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Appendix R
Production Switcher Input Source Assignment
Outputs of video routing switchers are commonly used to feed some or all of the inputs on a production switcher. This gives
the operator a means of accessing sources that cannot be permanently wired to the production switcher due to input
limitations. Production switcher inputs that receive their source signals from routing switcher feeds are referred to as
“assignable inputs.” A routing switcher control panel is used to select the assignable input. See Figure R−1.
Production Switcher
PST
PGM
Inputs
Outputs
Video Routing Switcher
Router control panel
Control bus
Figure R−1.
Using the routing switcher control panel, the operator must first select the output to be switched and then the routing
switcher source. This operation is cumbersome and can result in human errors which could affect an on air signal. The
Jupiter Input Source Assignment option addresses this problem by automatically selecting the correct router output and
locking that output whenever it is on−air.
The sequence of events proceeds as follows: