GRASS VALLEY NV9680, Руководство пользователя

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6
Introduction
Function Buttons
Panel Organization
Function Buttons
The NV9680 has an array of 80 LCD buttons. Each button has 1, 2, or 3 lines of text, with 8
characters per line. When there are one or two lines of text, the characters are large; when
there are 3 lines of text, the characters are smaller. (One or all of the lines of text might be
blank). 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 in GV
- Orbit or GV Convergent, 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. We say a button is “dark” when its LCD is turned
off. See LCD Buttons , page 25, for a color chart.
Although you 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 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.
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
a “back” button if there are more sources than buttons. Pressing the ‘Forward’ button takes
you to the next page of sources. Pressing the ‘Back’ 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
opportunity to scroll up or down, respectively.
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.
Tally Interface
At the rear of the panel is a DB25 connector that provides 8 tally inputs and 4 tally outputs.
(The outputs are solid state relay outputs.) Both inputs and outputs are optically isolated.
During configuration, you can construct expressions of Boolean logic that switch the
outputs on or off. The terms of the logic expressions are states of the source and destination
devices, and so on, controlled by the GV - Orbit or GV Convergent control system.
During configuration, you can define GV - Orbit / GV Convergent behavior that will follow
the tally inputs.
What you connect to the tally interface is up to you. Grass Valley provides an optional
breakout cable (WC0053) for the tally connector.