Ancillary Data

Ancillary data is information such as closed captioning or embedded audio that is included in the non-active video portions of the video signal. These portions include the Horizontal Ancillary Data Space (HANC) and Vertical Ancillary Data Space (VANC).

Important: The switcher does not pass ancillary data. Ancillary data is handled by Ultrix and inserted after the switcher. Refer to the documentation that came with your router for information on ancillary data handling.