Source; Source/Destination; Source Is Master - GRASS VALLEY NV9649 User Manual

Operation
Buttons for the LCD XY/MD Model
If you have enabled 'Hold' mode,
1 Select one or more MD devices. Scroll the MD device display as needed.
2 Select a source.
3 Repeat steps 1 and 2 until your presets are complete.
4 Press 'Take' . The selected MD devices remain selected.
If you have not enabled 'Hold' mode,
1 Select an MD device. Scroll the MD device display as needed.
2 Select a source.
3 Repeat steps 1 and 2 until your presets are complete.
4 Press 'Take' . The selected MD devices become unselected.
If the configurer has turned on the option, you may redefine any MD destination. To do so is
simple: (1) select an MD destination on a selection button, (2) choose a destination that is
not on a selection button. You might have to navigate or scroll through a destination list to
choose one.

Source

The button selects a specific source. The source name appears in the 'Preset' display.
Selecting a source activates the 'Take' button, which you must press to complete the route.

Source/Destination

The button toggles between source and destination modes. Category selections in source
mode select source devices. Category selections in destination mode select destination
devices.

Source is Master

Means "source is the master" and makes the source device the master. Otherwise, the
destination is the master. This button (and these concepts) apply only to machine control
routes.
The button is a toggle: Press it once to make the source the master (it goes high-tally); press
it again to make the destination the master (the button is low-tally).
The 'Source is Master' button is also used to initiate "broadcast" machine control routes.
See Broadcast
During data level (i.e., machine control) takes, this button makes the source device the
master. Otherwise, the destination is the master.
The button is a toggle that reverses the direction of data routing. For example, if the
destination is the master and the source is the slave, pressing a 'Source is Master' button
reverses their roles. Pressing the button again reverses the roles.
The 'Source is Master' button is used to initiate "broadcast" control routes. See
Routes, on page 90.
The panel can be configured so that "source is master" is the default state or so that
"destination is master" is the default. The button still toggles between "source is master"
and "destination is master. "
104
Routes, on page 90.
Broadcast