Here is how I am wiring my layout's two mainlines using two PH180 connected to one 360 PowerMaster with the TIU in passive mode. On my test layout I was using only one PH180 to the track and was popping the PH180's CB with my Lionel Legacy E7 ABA (all powered with sound in both As) and 8 K-Line 21" passenger cars with Streamlighting. Yes I can lower the amperage by going to LEDs but this was easier. I did this setup (without choke or capacitor) with the PSX set at 15.4 amps and I had no issues. The choke was added after I read about possible interference between the PSX and the DCS signal, and the DCS signal did increased from 8 to 9. While the mainline is blocked per DCS best practices, each mainline is its own power district. This may change when I start (if ever) stage 2 of the layout which more than doubles the trackage.
