Grass Valley Kalypso User Manual V.15.0 - Manual (Page 69)

Kalypso — User Manual 69
Signal Routing
source to button mapping, then through source definition to find the phys-
ical inputs.
On the Kalypso system, a single source button can control crosspoints on
different buses simultaneously. For example, during keying on an M/E,
both the video and key signals of a source can be selected with a single
button press. In this case two different crosspoints on separate buses (key
fill bus and key cut bus) are actually switched when the button is pressed.
In the upper part of
Figure 50 , the video component of source 2 in the figure
has been selected on the key fill bus and becomes the key fill signal for sub-
sequent keying. The key component of source 2 selected on the key cut bus
becomes the key cut signal for keying. The lower part of
Figure 50 shows
how the same source (source 4) can be selected for both the key fill and key
cut signals.
Figure 50. Multiple Crosspoint Control
Shifted Sources and Shift Preference
An operator may need to quickly access many sources during a production.
However, a control panel has size limitations, since all the source selection
buttons must remain within reach. To accommodate rapid selection of
many sources, earlier generation video switchers often employed a mecha-
nism similar to the shift key of a typewriter. On these switchers, holding
down a Shift button on the control panel made an alternate set of sources
available for selection. Which set of sources was available by default and
which set was accessed with the Shift button (the shift preference) could be
configured, but this setting generally applied to all the buses on the control
Source Signal Inputs
Key
1 2 3 4 5
Key Video Key Video Video Only Video Only Video
0618_00_21_r1
Key 1 Fill Bus
2 1 3 4 5
Key 1 Cut Bus
Single Button Controls Both Crosspoints
Single Button Sends Same Signal to Both Buses
Key 2 Fill Bus
2 1 3 4 5
Key 2 Cut Bus