Cisco Cisco StadiumVision Director Manuale Di Manutenzione
© 2012 Cisco Systems, Inc. All rights reserved.
Page 34 of 103
Sophisticated video wall content can be created by having two or more DMPs active
at the same time. This is shown in
at the same time. This is shown in
, where both TV3 and TV5 are active.
The downstream TVs receive the video signal from the upstream TV that is closest
to them in the daisy chain. In this case TV6 sees the same signal as TV3, and TV1,
TV2 and TV4 all see the same signal as TV5. The result is video wall content as
depicted at the bottom half of
to them in the daisy chain. In this case TV6 sees the same signal as TV3, and TV1,
TV2 and TV4 all see the same signal as TV5. The result is video wall content as
depicted at the bottom half of
Figure 30.
Tile Matrix Video Wall, with Two Active DMPs
Video walls are complex and there are many caveats to watch out for. Here are
some that apply to TV-based tile matrix video walls:
some that apply to TV-based tile matrix video walls:
• When daisy-chaining the video signal there is not any conditioning of the video
signal as it is propagated from TV to TV. Therefore, the signal at the last TV in
the chain may be a little weaker than the others. This can be compensated for by
minor tuning of the brightness, contrast, and color settings on the DMP or the
TV, so that the picture is visually synchronized with the other TVs.
the chain may be a little weaker than the others. This can be compensated for by
minor tuning of the brightness, contrast, and color settings on the DMP or the
TV, so that the picture is visually synchronized with the other TVs.
• If the TV’s input port (connecting to the DMP) and the daisy-chained port are of
different types (i.e. HDMI and DVI), then a slight difference in color might occur
depending on which input type a TV receives the signal on. In the case of HDMI
and DVI this can be eliminated by inserting an HDMI to DVI adaptor on the
HDMI input, effectively making both inputs DVI. In the case of VGA or
Component inserting an adapter is not possible, and the solution instead is to
compensate by adjusting brightness, contrast and/or color setting.
depending on which input type a TV receives the signal on. In the case of HDMI
and DVI this can be eliminated by inserting an HDMI to DVI adaptor on the
HDMI input, effectively making both inputs DVI. In the case of VGA or
Component inserting an adapter is not possible, and the solution instead is to
compensate by adjusting brightness, contrast and/or color setting.