The Commscope DSR-4470 IRD is by default setup to deliver embedded captioning on Line 12 of the HD-SDI output. Captioning can be moved to Line 9 if needed through the steps outlined in this document:
Commscope DSR-4470 HD-SDI Embedded Captioning Change From Line 12 to Line 9
Steps Required to move Closed Captioning from Line 12 to Line 9.
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Written by Kyle Worrell
Updated over a year ago