3-3IN1508 Scaling Presentation Switcher • Operation
Input controls
2
Input buttons — The Input 1 through Input 8 buttons (figure 3-3) select the
associated video input to scale and output. The switch can be a cut or a fade,
depending on the switch mode; see “Fade Switch selection box”, on page 3-24.
Audio always follows (switches with) the front panel video selection.
INPUT
7
654321 8
Figure 3-3 — Input selection buttons and LEDs
If the picture-in-picture (PIP) feature is turned on (the PIP On LED,
4
, is
lit), the input buttons select an input for either the primary (main) window or
the secondary (PIP) window. If the PIP feature is turned off, the input buttons
select the main output only. See “Input selection operation” on page 3-10 for
details.
If the PIP feature is turned on, when an input is selected, the audio associated
with that input in the PIP window is muted. The audio does not become
unmuted until either:
• It is swapped to the main window.
• A Simple Instruction Set Audio follow source command has been issued
to configure the switcher to make the audio follow the PIP window. See
chapter 4, “Serial Communications”.
Input LEDs — The Input 1 through Input 8 LEDs indicate the selected video
and audio input(s).
An Input LED that is lit green indicates the primary (main) output.
An Input LED that is lit red indicates the secondary output (the input that is
displayed in the PIP window).
No input LED lights red if the PIP feature is turned off.