Idle words: Idle ordered sets are transmitted between ADVB frames. Typically, a minimum of six idle ordered sets between each Fibre Channel frame is needed. When transmitting, the number of idle ordered sets between ADVB frames can be varied to adjust the video frame time (to adjust the horizontal blanking).
Start of frame: ARINC 818 is independent of class of service. Currently, Class 1 and Class 3 implementations exist.
Data payloads: The first frame of an ADVB container data sequence includes the container header and Object 0 ancillary data as its data payload. Subsequent frames of the container sequence include the Object 2 video pixel data. Each is limited to 2112 bytes, which may require a single line of video to be broken into multiple ADVB frames. In the XGA example, each of the 1024 RGB pixels in a line requires three bytes (3072 bytes per line), so a video line must be divided between two 2112-byte ADVB frames.