GRASS VALLEY NV9000 User Manual page 31

Type Description
Category The button selects a device category. When the panel is in source mode, a
category button (partially) selects a source. When the panel is in destination
mode, a category button (partially) selects a destination.
During operation, a sequence of category button presses is required to
select a source or a destination. The first press selects the actual category
(e.g., CAM, VTR, MON) and subsequent presses select either alphanumeric
suffixes or digits in a numerical suffix.
During configuration, you can specify a source category for the button, a
destination category, and a suffix. Any of those fields can be 'None' . When the
field is 'None' , the button is inapplicable in that context.
Thus, when the panel is in source mode, category buttons that are not
configured with a source category become disabled. When the panel is in
destination mode, category buttons that are not configured with a
destination category become disabled. Category buttons configured with
both source and destination categories are not disabled in either mode.
Category buttons that have only a suffix configured are disabled until a
category becomes selected.
After a category button has been pressed, the operator must then press
number or suffix buttons to perform a device selection within the category.
Only those suffixes or digits that can apply to the present selection remain
enabled.
The 24 function buttons include 10 fixed category buttons. You cannot
configure these as any other button type. You can create additional category
buttons however.
The names of devices in categories are composed of the category name
followed by one or more suffices. (Device names are limited to 8 characters,
however.)
NV9000-SE Utilities allows configurers to designate a separator character
which is inserted between the parts of the device name.

Category buttons also allow you to enter a page number for multi-desti-
nation devices as an alternative to scrolling. This is a convenience, but it
is available only when no category device selection (in MD mode) is
pending. The convenience is not available for salvos. See
page 5.
Chop When a chop function is supported by a router, the button is a toggle that
enables and disables rapid switching of the selected destination device
between the current source and the preset source. This chop function is used
to test system timing.
The button definition has no fields to configure.
Clear The button reverts to the most recent action. You may also think of this as a
"backspace key. " It erases the suffixes entered under category selection in
reverse order. If the operator continues to press the 'Clear' button during
category selection, it will erase the entire selection, including the category
mnemonic.
(If the operator has placed the panel in salvo mode, 'Clear' brings the panel
back to normal mode, without executing a salvo.)
NV9608 and NV9616
User's Guide
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