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The Aux panel features inputs for composite video sources as well as HDMI sources. If your device has an HDMI connection you will use the HDMI cable on the teaching console. You will still choose AUXILIARY INPUT on the touch panel console.
See the Instruction page on Auxiliary Panels for more information: https://wikis.utexas.edu/display/comm/How+to+Connect+an+Auxiliary+Device+in+a+College+of+Communication+Classroom
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