GRASS VALLEY NV9649 User Manual page 80

Configuration
Button Functions for NV9609 Mode
Type
Category
Chop
70
Description (under NV9609 Mode)
The button selects a device category. The button can operate in source
mode or destination mode. (Source category buttons operate in level mode;
destination category buttons do not.)
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 available 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.
The operator may also use the knob to select devices within the category.
When the panel is in source mode, pressing a category button places the
category mnemonic in the 'Preset' display. As the operator enters suffixes to
select a source, the name of a source constructed from the category name
and suffixes thus far entered appears in the 'Preset' field.
When the panel is in destination mode, pressing a category button places
the category mnemonic in the 'Preset' display. As the operator enters suffixes
to select a destination, the suffixes are appended to the contents of the
'Preset' field, and the name of a destination constructed from the category
name and suffixes thus far entered appears in the 'Destination' field.
If you want your panel to have a keypad, you must use category buttons to
implement the keypad. Any particular category button can represent 3
items: a source category, a destination category, and a suffix (which is
typically numeric).
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.

Note that category buttons in NV9609 mode function differently from
category buttons under LCD XY/MD mode and server mode. There are
differences in the configuration of these buttons too.
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. Its legend is arbitrary.