Grass Valley NV9648 v.1.1 - Manual (Page 58)

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Operation
Behavioral Models
The panel’s LCD XY/MD behavioral model supports a hierarchical (or tree-structured) set of
button pages. Although one can see a list of the pages in the tree during configuration, the
structure of the tree is not evident on the panel itself. The panel operator must commit some or
all of the tree structure to memory to be able to use the panel. It is up to the person configuring
the panel to design a usable tree structure.
Under the LCD XY/MD model, some buttons functions are assigned by the system depending
on the context. For example. if a button page is to represent all sources in a category, and that
list changes, the button subtree adjusts in size dynamically. The panel software adds a “Page
Down” button and a “Page Up” button if there are more sources than buttons. Pressing the ‘Page
Down’ button takes you to the next page of sources. Pressing the ‘Page Up’ button takes you to
the previous page of sources.
Some button states depend on context. Many buttons remain unlit when their functions are
disabled. For example, ‘Page Up’ and ‘Page Down’ buttons remain unlit until there is an opportu-
nity to scroll up or down, respectively. By default, an XY/MD button turns green for X-Y mode
and amber for multi-destination mode.
Under the XY/MD model, the LCD buttons display a menu if the operator presses a menu
button. When the operator make a menu selection, the panel displays viewable data on the LCD
buttons. In some cases, the operator can enter data (such as panel ID or LCD brightness) using
buttons that allow data entry.
Under the LCD XY/MD model, configurers can define ‘Selection’ buttons that select a level
during a breakaway setup. (They must do so if the operator is to make such selections.)
In X-Y mode, selection buttons report the preset source, current source, and the levels for the
current destination.
In multi-destination (MD) mode, selection buttons report the preset source, current source, and
destination device.
A reverse field (light letters on a dark background) on the top line of a button indicates that a
breakaway exists on a source. A reverse field (light letters on a dark background) on the bottom
line of a button indicates that level mapping has been performed.
The user interface of an NV9648 in one installation can be radically different from the user inter-
face of an NV9648 in another installation.
Because some of the panel’s buttons can have arbitrary legends, a button’s legend might or
might not indicate its function. Operators and configurers will have to communicate about the
meaning of the buttons in the button tree.
Behavioral Models
The panel can operate according to 3 behavioral models (or operating modes):
• Client mode.
• Standalone mode.
• LCD XY/MD mode.
Your panel will operate in one of these modes. It is not likely that your panel will change mode
often, if it changes at all. It is not possible to change modes except by reconfiguration.