From the XV-2020 .pdf manual, available online from Roland:

Quote:


A MIDI interface is required for making MIDI connections with a computer. The
MIDI interface is connected to the computer, and two MIDI cables connect the MIDI
connectors of the MIDI interface to the XV-2020’s MIDI connectors.





The USB connection on the 2020 is apparently only for editing the device, not intended for use as a MIDI interface to software like BIAB, etc.


--Mac