Thanks for your quick answer. Got plenty of old zero88 products but just can't get rid of them, they still do the job perfect. I love the delta switchpack. Or is it sigma? Anyway. Thanks for your answer and your good products.
I got an Demux 24 and want them to control 4x Rackmaster 660s. Is this possible? Since the rackmaster has a 7pin DIN male and the output from the demux 24 is 8 pin DIN male. Can this be solved? The front of the dimmers says pin 7 is for 20v. What is that needed for?