Guntermann & Drunck CATpro2-DVI - Manual (Page 12)

Supported graphic resolutions
9 · G&D CATpro2-DVI-UC
Supported graphic resolutions
The CATpro2-DVI-UC target module basically supports every resolution that can be
transmitted through a single link interface according to the DVI specification 1.0. This
particularly applies to the pixel rate that may be between 25 and 165 MHz.
Therefore, resolutions between 640 x 480 pixels at 60 Hz and 1600 x 1200 pixels at
60 Hz are possible for the common VESA DMT and VESA SMT timing standards.
According to VESA CVT-RB, 1920 x 1200 pixels at 60 Hz can be transmitted.
Any refresh rates and resolutions can be applied within the parameters mentioned
above. It mostly depends on the graphics card, the connected monitor, the installed
device driver, and on the operating system which display modes are actually avai-
lable on the computer connected to the target module.
The image data transmitted from the computer to the target module are transferred
to the monitor of the remote user module with unchanged timing. Frequencies and
image position of the signal at the user module therefore comply with those at the
graphics card output..
Note: While creating the video signal, many graphics cards differentiate between
digital and analog output. Such graphics cards create digital image signals
for the CATpro2-DVI-UC target module.
Independently from the operating system, some graphic cards therefore
scale the image to the resolution selected at the DDC rotary switch on the
target module. If necessary, use the DDC rotary switch to select the desired
(native) resolution (see page 9).
Some graphics cards furthermore create digital image signals with non-
standardised timings. Such timings differ from the monitor’s standard to
reduce the frequencies of digital signals. Due to the non-standardised
timing, monitors that are connected to the user module in an analog way,
might not be able to display both image size and image position correctly.