The ADDAC111B EXPANSION allows the user to access the first 8 files (a to h) through a trigger.
Files do not play simultaneously, if several triggers happen at the same time top priority goes from top to bottom. Meaning that if B E and F triggers are received at once the file that will be played is file B.
The expansion module should be plugged to the back of the Ultra .Wav Player module. There’s no connection to the bus boards.