Auxiliary SDI Outputs
ATEM switchers have auxiliary SDI connections that output the same video format in use.
The number of auxiliary outputs vary between models:
ͽ ATEM Production Studio 4K has 1 auxiliary output
ͽ ATEM 1 M/E Production Studio 4K has 3 auxiliary outputs
ͽ ATEM 2 M/E Production Studio 4K has 6 auxiliary outputs
ͽ ATEM 4 M/E Broadcast Studio 4K has 6 auxiliary outputs
Auxiliary outputs can use any internal and external video sources. For example, program feeds
if you need more program outputs, or clean feeds without down stream keying, or even specific
video inputs. Aux outputs are perfect for driving video screens on stage, or feeds where you
can independently control what the viewers see. Aux outputs switch cleanly and can be used
as cut only switchers independent of the main program outputs. The audio on these outputs is
embedded SDI program audio.
It’s important to note that all outputs on ATEM Constellation 8K can have any source routed to
them, which gives you the flexibility to use any output like it’s an aux output.
Preview SDI Output
On switchers with a preview output, this shows the source selected on the preview bus on the
switcher, as well as preview transitions. This output is perfect when you want to use a full
resolution preview monitor. The audio on this output is embedded SDI program audio.
M/E Output
ATEM 2 M/E Production Studio 4K and ATEM 4 M/E Broadcast Studio 4K have a dedicated SDI
preview output for M/E 1, as well as HD and Ultra HD SDI program outputs for M/Es 1 and 2.
These can be used as additional preview or program outputs for mix effects blocks 1 and 2.
ATEM 4 M/E Broadcast Studio 4K has 4 M/Es. M/E 3 and M/E 4 are typically routed back through
M/E 1 or 2 to create complex layered scenes. You can, also output a feed from M/E 3 or M/E 4
by assigning them to auxiliary SDI outputs.
NOTE
SDI outputs for ATEM Constellation 8K can have any source routed to them.
For maximum flexibility, you can route any internal or external video source to any of its
24 HD or Ultra HD outputs, or any of its six 8K outputs. Video sources can include
program, clean feed, preview, M/E output, as well as cameras and other
external equipment.
8K SDI inputs and outputs on ATEM Constellation 8K use the two sample interleave
technique, also known as 2SI. It is important to connect your quad link SDI cables in
the correct order.
Audio for ATEM Constellation 8K outputs is embedded in the SDI stream, or you can
route it to the analog audio out channels or MADI outputs.
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Connecting Video Outputs
