The Q963 Trigger Bus is an aid module for the Q960 Sequential Controller. The user can manually route each trigger output from the Q960 to one of 2 bus outputs - A or B. A center position is provided to prevent the trigger from going to either output, resulting in a rest for that stage.
Connection to the Q960 is done with a 24" cable behind the panel, so the Q963 must sit near the Q960. Up to 5 Q963 modules can be daisy-chained to one Q960 Sequencer providing a total of 10 trigger buses.