AJA FS2 - Manual (Page 52)

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Computer Video Formats
The AJA FS2 accepts non-broadcast video input signals with the introduction of
software version 2.0. These signals, known as "computer," "VESA," or "DVI"
formats, can be applied to the HDMI input connector. Computer signals applied
to the HDMI input must be digital video signals compatible with single-link DVI,
which covers the range of display sizes from 640x480 (VGA) to 1920x1200
(WUXGA). For a list of accepted computer video formats, please see the
Specifications appendix in this guide.
Note: The FS2 does not accept analog computer video inputs because HDMI
connectors do not have pins assigned for analog signals. The FS2 also does not
accept dual-link DVI inputs.
Physical Connection To connect a computer video input to the FS2 HDMI connector, use a passive
DVI-to-HDMI adapter (user supplied). To prevent strain on the FS2 HDMI
connector, AJA recommends that you convert from DVI to HDMI at the video
source, such as the computer display card, and run an HDMI cable from the
source to the FS2 input. You can also use a cable adapter that has a DVI
connector on one end of the cable and an HDMI connector on the other. The
FS2 HDMI input connector is a terminating input and does not have a "loop-
through" output.
Menu Setup To enable a computer input in the FS2 menu system, select HDMI as the input
using Video Menu 1 for the Video Processor channel you plan to use. The FS2
will automatically detect the frame format of the incoming video and scale/
convert the input to the selected output format. You can select the same HDMI
input for both Video Processors and independently convert the input to
separate video output formats.
Scaling If the DVI source video frame aspect ratio is not the same as the output video
format frame aspect ratio, the FS2 scales the input frame size based on the
current Upconvert (Video Menu 6) or Downconvert (Video Menu 7) mode
selection.
If the FS2 output format is set to a Standard Definition (SD) format (525i/59.94 or
625i/50), the current Downconvert mode is used to determine the frame scaling
mode.
If the FS2 output format is set to a High Definition (HD) format (anything other
than SD), the current Upconvert mode will be used to determine the frame
scaling mode.