Black Box VideoPlex4 Video Wall Controller, VSC-VPLEX4 manual Configuring the VideoPlex4, Page

Chapter 4: Configuring the VideoPlex4

But, if the input resolution changes to 1600 x 1200, then for the same output monitor, the VideoPlex4 would upscale from an 800 x 600 region and would reprogram its scale factors to 2.4 horizontally and 1.8 vertically to support the same 1080p monitor.

The cropping regions can be assigned arbitrarily and can overlap; the only restriction is that the resulting scale factor must be greater than 1.0 (i.e., 1:1 or scaled up) in either direction. For example, you can use the VideoPlex4 to output four identical copies of the input signal (the resulting output timings must remain within the capabilities of the single-link DVI outputs).

The regions of the input image to be displayed on a given output monitor can be programmed via USB by using the VideoPlex configuration application.

To support portrait orientation of monitors, the source data can be rotated by 90º, 180º, or 270º as it is output to the monitor.

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