the trigger pcb has 15 contacts, and Ground. you run two wires to your "trigger" switch, or button. the trigger # + ground for each trigger you want. so, if you want a motion sensor somewhere, and you want it on #6, you run a wires from #6 and ground to that switch. if you want a set of buttons somewhere (say 10) you run the wires from the #'s you want to use, and ground to that location. that's it for the hardware.
then on the conductor, you'll have your shows set up. like 1.sho, or 2.sho for whatever trigger events.
Examples that could be helpful,
the trigger sequence can be just an mp3 file like a scream , of other effect (for halloween)
of the trigger can be a full song animated (so you can make a jukebox of the songs in your show for christmas that people can push)