Video Wall Functionality - NTI SPLITMUX-SVDVI-2 Installation And Operation Manual

SPLITMUX-SVDVI-2 DUAL SCREEN SPLITTER

9 Video Wall Functionality

When multiple SPLITMUX units are used, a very powerful but yet cost effective video wall can
be created. The SPLITMUX can create video walls that have real time vertical rotation of single
or multiple images. For easy setup, the SPLITMUX has a Video Wall Setup menu under
Windows Setup (pg. 13). This menu allows a user to enter the amount of rows and columns of
the video wall as well as the current location of the SPLITMUX. Once entered, the SPLITMUX
will calculate the proper size for the unit which can then be saved into a preset.
Example of 2x2 Video Wall Settings:
For this example, 4 SPLITMUX units will be needed. The output of each SPLITMUX will be
connected to a display that's assigned to that specific SPLITMUX. The source to be shown
across the four displays will need to be put through a distribution amplifier (D/A) to feed the
same source into the four SPLITMUX units. From Video Wall Setup of each SPLITMUX:
Set number of columns and rows to 2 (2x2).
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- Set column and row of each SPLITMUX to its corresponding quadrant. In 2x2 mode,
if column and row are set to 1, then this SPLITMUX will display the 1
column is set to 2 and row is set to 1, then this SPLITMUX will display the 2
quadrant and so on.
Note on video wall setup:
Input the highest possible resolution because it will produce a better picture on the
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output (the output picture will not be zoomed as much).
- Avoid using composite video sources as the dot crawl will be magnified. S-Video,
YPbPr, RGBHV, and DVI are the better choices with DVI providing the cleanest
picture.
Use the DVI output of the SPLITMUX units because it will keep the image clean and
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sharp.
Match the output resolution of the SPLITMUX to the displays native resolution.
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Wire the RS-232/485 as per the connection diagram located in the back of the manual and set
the address in each SPLITMUX unit so they are different from each other. This will help when
using presets, IR remote control, and RS-232 control. The SPLITMUX LOOP KIT can be
purchased separately for easy connections.
Ideally a video generator should be present with a grid pattern to set each SPLITMUX unit to the
appropriate quadrant. When using the grid make certain all the boxes are square even though
the screens may be rectangular. Also, make certain the display device has all zoom modes and
aspect controls set to default positions. Using the Zoom, Size, Position, and Crop to adjust and
center the picture and store it in a preset. Even though each SPLITMUX unit will be zoomed to a
different area of the original image, it is best to store it to the same preset as all the other units.
When that preset is recalled, all units will go to the appropriate area they were set for. Repeat
this for each source and each effect desired.
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quadrant. If
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