Have read several older threads about electrical design for layouts with passive TIU mode. They have raised a couple of questions about optimal design.
One comment, I believe, said the individual is using just one TIU output channel, then distribution using MTH terminal blocks and the star principle to entire layout. It seems that could only work if you had only one AC power district, for reason below (sneak currents between districts).
A second question is the independence of signal distribution from power districts. I guess it’s not independent, since crossing power districts would cause sneak currents from one to another through your TIU channel output wiring. But at any rate, the physical location of routing of outputs from your MTH terminal blocks to individual track blocks would not have to follow the physical location of the corresponding AC power branches to those blocks, in case better signal could be gained by different more direct routing.
I didn’t find discussion of these details. Pro Hobby, Zacharia and others might have thoughts worth sharing from their experience. My AC power wiring is all in place, but haven’t begun passive TIU output wiring yet. Zacharia’s passive TIU boards have been ordered, though. Thanks for any comments.
