Grass Valley NV9642 v.1.2 - Manual (Page 45)

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NV9642
User’s Guide
operation. (The exception is the default page which is always available after reset. It might
become unavailable in a configuration that has subpages with no ‘back’ buttons.)
Tally (GPIO) Window
Below the tree window is the tally section of the configuration page.
It has two sections: inputs and outputs. By clicking on one of the input or output buttons, you
can configure the input or output.
(The NV9642 has no actual tally buttons. These buttons represent the DB25 connector at the
rear. The buttons are present in the configuration page to allow you to configure the tally
interface.)
If you are interested in configuring the tally interface, read Chapter 6, GPIO , on page 69.
Selection Buttons
Selection buttons have many functions, not the least of which is to provide feedback (e.g.,
source and destination mnemonics on the face of the buttons) when the operator is performing
takes.
Selection buttons support level selection in XY mode and device selection in multi-destination
mode.
You should configure at least one selection button (for feedback). You may configure as many
selection buttons as are suitable for your system. For instance, if your system has a maximum of
12 levels for any device, it might make sense to have 12 selection buttons.
Operators can scroll, using ‘Page Up’ and ‘Page Down’ buttons, through multiple pages of levels
in X-Y mode and through multiple pages of devices in MD mode.
When an operator scrolls the selection buttons, they scroll modulo the number of buttons. For
instance, if there are 9 buttons, they scroll in groups of 9 items.
Selection (of levels or MD devices) is affected by ‘Hold’ mode. (See the Information button,
page 26.) The user may toggle Hold mode at any time. Using the selection buttons follows hold
mode or normal mode, whichever is in effect at the moment. Normal mode is the default
—
unless you specify otherwise in the Panel Options .
Selection Button Behavior
XY Mode
When the panel is in XY mode, a set of selection buttons presents a set of virtual levels. The
levels displayed on the buttons correspond to the levels in the level set of a selected destination
device. If a selection button is dark and blank, the level does not exist in the level set. If a selec-
tion button is dark, but has text, the level exists, but is not defined for the selected device. If a