how to reconnect 6091 wave controller?

[DrDNA]

I have two of the old style waveboxes - the ones with the hockey pucks and 6091 wave controllers. I haven't used them in years and am trying to figure out to sync both of them up. Do i just link the master cable to one and the slave cable to the other?

 

[rvitko]

In general that is all there is to it, but inside the controller is a jumper, from the factory it is set to synchronous, both boxes on the same side, to do one on each side use inverse, the other option is external which lets a 7095 for example switch it off and on to alternate between sets of wave boxes or pumps/waveboxes.