Belden GRASS VALLEY NV9641, Руководство пользователя

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4
Introduction
Panel Organization
XY/MD Model
Under this model, the NV9641 provides a tree-structured (or hierarchical) button layout. You
can define a “tree” of buttons in such a way that each of the 16 LCD buttons (illuminated in
various colors and having 1 to 3 lines of text) can either (1) execute a function or (2) select a
subtree (i.e., present an entirely new set of functions at a different level in the tree). The tree,
with its subtrees, is not limited in size.
We use the term “button page” or “page” to mean the set of 16 button functions at any
particular place in the subtree.
Configurers will use ‘Navigate’ buttons to create new button pages (subtrees). During
operation, NV9641 users will press a ‘Navigate’ button to access a subtree. However,
‘Navigate’ buttons are typically not labeled “Navigate”; they would be labeled according to
the specific function they perform in your system.
 The up/down buttons scroll through lists of devices, through levels in X-Y mode, and
through pages of multi-destination devices.
When the operator is scrolling through devices, and is at the first page of devices, the
up button returns the panel to the “parent” page
— the page that contained the
category button that accessed the device pages.
Paging Model
Under this model, the NV9641 provides a list of button pages, through which the operator
may scroll using the up/down buttons. In this case, the term “button page” means a set of
buttons accessed by the up/down buttons. The button pages are
not organized as a tree.
There are no navigation buttons under paging mode.
The paging model has fewer functions than the XY/MD model.
Panel Organization
Function Buttons
The NV9641 has an array of 16 LCD buttons. Each has 3 lines of text (up to 8 characters per
line). The buttons can display one of seven colors dynamically: nominally red, green, blue,
purple, amber, yellow, or grey. We say a button is “dark” when its LCD is turned off.
During configuration, you can assign any of the 7 colors to a button.
Each LCD button has four levels of brightness: off, low, medium, and high, and supports
three operational levels: high tally, low tally, and off. High tally can be either medium or high
brightness and low tally can be either low or medium brightness. High tally is always
constrained to be brighter than low tally. See
LCD Buttons , page 87 , for a color chart.
Although a configurer can see the tree or list of pages during configuration, the structure of
the button pages is not evident on the panel itself. The panel operator must commit the
structure to memory to be able to use the panel. It is up to the person configuring the panel
to design a simple and logical structure.
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 “forward” button and