Operating Concepts; Levels; Breakaway; Hold - GRASS VALLEY NV9000 User Manual

Operation

Operating Concepts

• In X-Y mode, the top left button of the NV9616 represents the selected destination.
Similarly, the left button of the NV9608 represents the selected destination. Any
remaining buttons represent levels. Not all levels necessarily apply to the selected
destination. Those that do apply can be selected and those that are selected are high-
tally.
• The text on the destination button varies. The top two lines usually read "X - Y" and
"DEST" respectively. The bottom line is the destination name.
• The top line of buttons that represent levels is the current source for that level. The
middle line is the preset source for that level. The middle line of text is blank when you
have not preset a source. The bottom line is the level name.
• In menu mode, the button text varies according to the button function.
• In salvo mode, the button text is the salvo name.
Operating Concepts

Levels

In the NV9000-SE Utilities and in the NV9000 router control system, routes occur on levels. A
level is typically SD, HD, analog video, AES, analog audio, or machine control. Various
devices are defined as sending and receiving signals on certain levels. The set of levels
handled by a device belong to what is called a level set.
A source can be routed to a destination if it has the same set of levels, i.e., it belongs to the
same named level set. A source can be routed to a destination in a different level set if the
NV9000 configuration has the appropriate level mapping.
The effect of this is that when you, the operator, choose a destination, the NV9000
recognizes which source devices are allowed to be routed to the destination and limits your
selection to those sources.

Breakaway

Routes can be all-level in which case they are taken on all levels defined for the destination.
The acceptable sources for a route have the same levels as, or some configured mapping to,
the levels of the destination.
A breakaway is where you take different sources to the same destination — on different
levels.
It is not possible to take different sources to the destination on the same level. For instance,
you cannot take SD from two different sources. The outcome would be noise even if you
could do it. (That is because routers are not mixers.)

Hold

Hold mode (and hold buttons) apply in both X-Y mode and multi-destination mode.
A hold button is also called a 'Hold Preset' button.
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