Meridian 562V.2 User Manual page 48

Each video input option can be set to Last valid to leave the
video loop unchanged when you select the source. You would
usually do this for audio-only sources, such as CD:
Advanced
Specify the Advanced options as follows:
If the source is connected to another Meridian unit, set
Comms type to 1C for a Meridian CD player, 2C for a
Meridian FM tuner, and 3C for a Meridian DVD player.
Otherwise set it to None.
If you have two Meridian source units of the same type you
can configure them to have different Comms addresses. You
can then select the appropriate source by specifying its
Comms address in the Comms address field.
Select Triggers 1 and/or 2 to switch the corresponding trigger
output on when the source is selected.
Trigger 1 is usually selected for all sources, to switch on a
power amplifier, and Trigger 2 is usually selected for video
sources, to switch a TV.
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