Adcom RD-230 Quick Start Manual page 5

Note: It only supports to decode NDI|HX Version 2.0 sources.
All added sources are displayed in the video source list, and when no decoding, the
status is gray and offline. To preview or decode the output, manually drag to the
upper preview or output area to decode. The video source appears as a green
"Display/Service" and the video source is decoding or streaming.
3. Web page preview
Drag the added source into the source preview list, and after the normal
connection starts decoding, you can preview the source screen and decode the
source parameters on the WEB page.