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4.4 Excluding video inputs
Normally, switching a video signal on a monitor does not influence what is shown on the others. In special
cases, however, it may be necessary to remove a video signal when it is controlled from a remote position. This
occurs, for example, inside shopping centres or outside banks where some of the monitors are shown to the
public as deterrents.
These
public
monitors
are permanently in a switching sequence of video inputs. When a remote position (called
master)
requires a particular video input this should be removed from the switching sequence of the public
monitors:
In the example the master monitor shows a switching
sequence on inputs 1, 2, 3 and 4. The public monitor
shows inputs 1 and 2. Camera 1 frames the area
including the public monitor.
During active control of input 1 it is advisable to
remove this input from the switching sequence on the
public monitor. In this case it has been replaced by
input 5, called
replacement camera.
4.4.1 How to exc lude the video inputs
There are two different modes for excluding the video input:
•
manual
mode
•
telemetry
mode
In both cases the camera is excluded only if the public monitors are in automatic switching sequence. The
master monitor is always number 1.
Exclusion does not concern any dedicated output to the VCR.
During exclusion the master monitor shows an advisory message. This message is removed by any alarm
message.
4.4.1.1 Configuration
The exclusion mode is selected in 2.System configuration by selecting 8.Video.
After selecting the appropriate exclusion mode, indicate which replacement camera is to be used.
See chapter 5 “On Screen Menu (OSM) Programming”.
