Fiber Cable Powering; Cascading Multiple Da2Dvi-Pros - Lightware DA2DVI-Pro User Manual

1.5. Fiber Cable powering

As special feature DA2DVI-Pro is able to supply 500 mA current to power fiber
optical transmitters like DVI-OPT-TX100 (Pin 14 on both DVI output connectors).
Standard DVI outputs or VGA cards supply only 55 mA current on +5V output, thus
unable to directly power a fiber optical cable.
Info DA2DVI-Pro does not check if the connected sink (monitor, projector or other
equipment) supports Hotplug or EDID signals but outputs the signal immediately
after it has been applied to the input.

1.6. Cascading multiple DA2DVI-Pros

Thanks to the built-in cable equalizer and the Pixel Accurate Reclocking circuit, up
to 8 DA2DVI-Pros can be cascaded. This feature is especially useful for digital
signage applications. The distance between the display blocks may be up to 60
meters in case of HD 1080p resolution, or even higher for lower pixel numbers or
interlaced scan 1080i.
If the display devices have different resolutions, please emulate the EDID of the
display that has the lowest resolution, otherwise the displays with higher
resolutions may not show the whole image, rescale the image or won't display an
image at all.
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Digital signage application