Grass Valley NV9641A v.1.0 - Manual (Page 63)

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NV9641A
User’s Guide
Lists
The NV9641A can display devices, categories, and salvos in automatically generated lists under
the XY/MD model. There are three kinds of lists:
• Generated during configuration of a navigation button. These lists are characterized by the
presence of “Back” and “Forward” buttons in the list. Traverse these lists by pressing the back
or forward buttons. A final “back” returns to the page containing the button that displayed
the list.
• Automatically generated as the result of pressing a category button. These lists are charac-
terized by the activation (and illumination) of the up and down buttons. Traverse these lists
by pressing the up and down buttons. A final “up” returns to the page containing the cate-
gory button that displayed the list.
• Virtual levels or MD devices presented on selection buttons. These sets are also character-
ized by the activation (and illumination) of the up and down buttons.
 Automatically generated device lists, category lists, and salvo lists do not exist under the
paging model.
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 system controller
recognizes its levels and 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 can occur in X-Y mode. 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.)