Grass Valley NV9605 v.1.1 - Manual (Page 38)

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Operation
Operating Concepts
Levels
In 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 inter-level set mapping.
The effect of this is that when you, the operator, choose a destination, the NV9000 software
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. In
most cases, you would take only certain levels of a new source to a destination that already has
a source on its various 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 ‘Limited X-Y’ mode.
Breakaway
In limited X-Y mode (with breakaway), a hold button retains breakaway level selections after a
take.
Simply press the hold button at any time before the take.
A hold button is a toggle. Press it once to put the panel in hold mode; press it again to remove
hold mode.
Gang Switching
In limited X-Y mode, the hold function allows you to perform a gang (or “dub”) switch. In hold
mode, destination selections are cumulative, and not mutually exclusive.
Follow these steps to route a source to more than one destination:
1 Select the first destination to which you want to route the source. The destination tallies
bright amber and its name appears in the destination display.
2 Press the hold button. When the panel is in hold mode, the hold button is high-tally. (Press
the hold button again if it is not.)
3 Select the additional destinations you require. As you select each destination, its name
appears in the destination display. You can toggle these additional destinations on or off.