User's Manual

4 During the transition, the red and green buttons on the program and preview buses
both turn red to indicate that you are in the middle of a transition. The transition slider
also indicates the position and progress of the transition. On the software control panel,
the virtual fader bar displays the position and progress of the transition.
5 At the end of the transition, sources selected on the program and preview buses are
exchanged to indicate that the video source that was on preview is now on program
and vice versa.
Preview Transition
ATEM switchers have a powerful feature which allows you to review and adjust a transition
on the preview output. The preview transition feature can be performed using the 'prev trans'
button in ATEM Software Control's transitions block, and lets you verify a transition before
actually performing it on air.
To preview a transition:
1 On the preview bus, select the video source that you want on the program output.
2 Select the transition type using the transition type buttons in ATEM Software Control,
or on your switcher's built in control panel.
3 Press the PREV TRANS button to put the switcher into preview transition mode.
The PREV TRANS button will illuminate red and the preview output will change so that it
is a copy of the program output.
4 Manually move the fader bar from one end to the other to preview the transition on the
preview output. The program output will remain unchanged.
5 Press the PREV TRANS button or return the fader bar to its starting position to
turn off preview transition mode. Returning the fader bar to its starting position will
automatically disable preview transition mode and turn off the red light on the PREV
TRANS button. Moving the fader bar after the light is off will take the transition on the
program output.
120Operating your ATEM Switcher