Extron electronics VNM EC 200 User Manual page 83

Videowall panel (not available when output format is set to Auto)
The Video Wall configuration settings (see
from a single source to split over several decoders, each attached to one monitor of a
videowall layout. The number of monitors that make up the full size of the wall and the
selected decoders position in the wall must be configured for each decoder.
The videowall can be as large as 5 monitors tall by 5 monitors wide in any variation. The
decoder segments its portion of the full video into the proper size based on the two size
entries and the position of the connected monitor.
Size tells the decoder how many total monitors (and decoders) make up the videowall.
For instance, in the videowall example below, H size is 2 and V size is 2 indicating a 2x2
videowall resulting in four segments of the full video.
Position is the location of the monitor as part of the entire wall and tells the decoder which
segment of the full video it displays. Numbering always begins with the upper left monitor.
Size (H) — 1 to 5
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Size (V) — 1 to 5
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Position — 0 to 25. Position 0 ignores the size entries and displays the full video on
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the connected display. The top left monitor as the user views the videowall is position 1.
Numbering runs left to right and top to bottom from that point as shown.
Example: The selected decoder is connected to the
video monitor in the lower left of the 2x2 videowall shown
at right. The configuration is:
Size (H) — 2: indicates the videowall is 2 monitors
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wide.
Size (V) — 2: indicates the videowall is 2 monitors
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tall.
Position — 3: selects the segment of the full video
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the decoder outputs, in this example the lower left monitor.
Bezel Compensation panel (Mullion Compensation)
In Videowall mode (see figure
when the decoded image is spread across displays that have a mullion. The settings in the
horizontal and the vertical adjustments are applied equally to both edges.
Horizontal — 0 to 100%
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Vertical — 0 to 100%
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Configuring for Videowall
In addition to the size, bezel compensation, and position settings, when configuring a group
of decoders for videowall use, the following settings are required (see
Output Format — Select the same output resolution for all decoders in the group.
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Scale Mode — Select Fill for all decoders in the group.
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NOTE: The aspect ratio of the decoded source image is not maintained.
Genlock and Framelock settings — All decoders are configured as a genlock
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group (see Genlock on page 72).
NOTE: The image quality of a single source that is scaled across multiple displays
depends on the compression applied to the source, and on the size of the final image.
The recommended maximum videowall size is three displays horizontal by three
displays vertical. It is further recommended that displays used in a videowall be the
same type, resolution, and size.
figure 53 on page 71) allow a video stream
53), the bezel compensation settings correct image geometry
VNM EC 200 • Device Configuration and Control
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figure 53):
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