AJA KONA 4 PCI-E Video I/O Card (HDMI Output, Cable Included) - Manual (Page 59)

KONA Capture, Display, Convert v15.5 59 www.aja.com
Quadrant Mode
In Quadrant Mode (Square Division) you can input (for capture) or output four
channels of SDI HD 1080 or 2K video at 30 fps or less, representing individual
quadrants of the higher definition UltraHD 3840x2160 or 4K 4096x2160 4K
formats.
Figure 30. Mapping of Quad SDI Outputs
Physical connections of the quadrants will be mapped to the SDI connectors as
shown. Monitoring one of these HD signals on a standard SDI monitor will display
one quadrant of the picture.
For UltraHD and 4K frame rates higher than 30, the same mechanism can be used
to transport four 3G signals.
2SI Mode
Two Sample Interleave is an alternative method to organize the data of SDI
UltraHD and 4K formats. Instead of dividing the picture raster into quadrants,
this method samples pixels to create four lower resolution versions of the entire
picture. These are combined later to create the full resolution image.
Figure 31. Mapping of 2SI Outputs
For 2SI UltraHD or 4K SDI video at 30 fps or less, monitoring one of these four
signals on a standard SDI monitor displays the entire picture, but at a lower
resolution. Above 30 fps, 3G bandwidth is required, so this type of signal cannot
be monitored on a standard SDI monitor using only one 1.5G connector.