Grass Valley NV9654 v.1.1 - Manual (Page 14)

4
Introduction
Panel Organization
At the rear, in addition to power, serial, and network connectors, is a 25-pin GPIO (i.e., tally)
connector that supports 4 optically isolated relay outputs and 8 optically isolated inputs:
Fig. 2-2: NV9654 Rear
The NV9654 is a compact unit, being 2RU and having an overall depth of 3.2”.
The NV9654 provides a tree-structured (or hierarchical) button layout. Configurers can define a
“tree” of button pages in such a way that each of the 54 LCD buttons 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 54 button functions at any partic-
ular place in the tree. A panel that is configured in ‘Panel and Button’ mode shows the “display”
only on the top level page of the button “tree.”
Configurers will use ‘Navigate’ buttons to create new button pages (subtrees). During operation,
NV9654 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 panel can also display predefined button pages. For instance, a “category” button, when
pressed, can display one or more pages of sources or destinations through which the operator
may browse. A “menu” button presents a page of (pre-defined) menu options.
Panel Organization
Function Buttons
The NV9654 has an array of 54 LCD buttons. Each button has 1, 2, or 3 lines of text, 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, 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 bright-
ness 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 93, 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
GPIO (tally) Ethernet
Serial (RS-232)
Power (2)