ON AIR button is highlighted in red, and KEY button is highlighted in white.
Figure 4.1-52 Before and After Upstream Key Transition-Example1
Example 2
The upstream key is off air initially. Use KEY button to cut it on air to the
program output in the next transition. The process is shown in Figure 4.1-53.
Step 1 Upstream key is off air both in program output and preview output
The initial status of upstream key is off air both in program output and
preview output. You can see the ON AIR and KEY button are all gray.
Step 2 Change upstream key status in the next transition
Press KEY button of the upstream key, therefore the status of the upstream
key will be on air in the next transition. And here you can see it on air in the
Panel Layout and Device Features
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