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The diagram on page 17 illustrates a typical installation with a B-520-MTRX-230-8x8 / B-520-MTRX-230-6x4+2
where all of the equipment is being controlled by a control system.
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The control system sends commands to each device being controlled. Custom programming by the installer
sets the control system up to automatically switch inputs and outputs in the matrix switcher as needed, so the
end user only has to select the source they want to watch.
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Each display (only one is pictured for reference) requiring IR control is connected to the system via the
HDBaseT output of the matrix switcher. Category cable connects to a B-520-RX-230-IR receiver, which
is attached to the display via HDMI for signal. An IR flasher connected to the IR flasher port sends the IR
commands to the display. Sources are directly controlled by the control system.
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IR control for displays is routed from the control system to the matrix switcher using 3.5mm mono cables
plugged into IR Input to Room ports. The commands pass from a matrix switcher port to the HDBaseT output
of the same number. This allows discrete control of each display connected, even if they are models with the
same codes.
Example: In the diagram the mono cable used to send commands to the HDBaseT output 4 zone is plugged into IR
Input to Room port 4.
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Some displays and projectors can be controlled by other methods than IR. The projector pictured features IP
control, so it is receiving commands from the control system over an Ethernet connection. An HDMI cable is
connecting it to the matrix switcher output since it is installed close enough to the equipment and requires no
IR flasher.
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When the system is in use, if two outputs are connected to the same input, the source will change on both
outputs with any command sent since it can't send two HDMI streams at once. This must be considered when
deciding on the sources to connect for distribution.
Example: In a home with five displays connected, if users in every room want to watch satellite on different
channels, there must be five satellite receivers set up as sources. With custom programming, each output can be
programmed to use only one of the satellite source inputs, giving each output a dedicated cable box, while allowing
other less-used sources to connect to any output.
18
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