Yamaha MTX Series Setup Manual page 126

2.
Specify the number of units that will be connected in your MTX/MRX system, and click
[Next>].
Set the number of "YDIF Connected" MTX5 units to 1, set the number of "DANTE Connected" PGM1 units to 1, and
set the number of XMV8280-D units to 2.
3.
Specify the UNIT ID of each device, and click [Next>].
Unless you have specific reasons for doing so, use the UNIT ID that is assigned.
Example 5) A system using the PGM1 for paging
MTX Setup Manual
126