Dan,
Thanks for the tip. I did read the AIU instructions and see there is a diagram for wiring the Operating Track Sections to the AIU and it looks like two ACC units have to be used (for example AAC5 & ACC6) for each Operating Track Section and a jumper goes from ACC5 IN to ACC6 IN. I assume that is to operated the two separate actions, uncoupling and car activation. In parentheses it states "Wired for track power". In other words the main Z-4000 has to provide power to the track. Do you know of any published diagram available that shows how to wire the Operating Track Sections to the AIU using auxiliary power ( in my case my Z-1000)? I am trying to power all my Operating Track Sections and Switches using my Z-1000 and powering the track with my Z-4000.
