stan2004 posted:Rod Stewart posted:I have an A-off-B toggle switch that toggles power feed to two rotary switches. One rotary handles the turntable spoke tracks and the second handles the adjacent freight yard. I patched the DCS-RC into this feed and gave it a try. Works perfectly.
By "this feed" do you mean just the freight yard. I must be misunderstanding but with an A-off-B toggle it seems you would need one DCSRC for the turntable feed and a second DCSRC for the freight yard feed?
Stan; schematic of the main cab attached. The lower right corner shows the yard and TT rotary switches. They are both powered by one switch, so I have connected the DCS-RC to the center lug of the switch. (Sorry my drawing lacks the pizzazz of some of the nice cad drafting that I often see on the forum, but I don't have the skills to do the latter! 
)
Normal operation is to select the yard or TT track I want, then power it up from either the A or B source. This way I avoid hitting each of the intervening tracks with a power spike as the rotary moves past. Not really critical for the yard since there is rarely an engine parked on any of the sidings.
I realize that feeding both rotaries simultaneously introduces a "split" for the DCS signal, but that has never created an issue for me. I also realize that the additional TVS's would be considered redundant, since each TIU channel already has one. But I don't believe they hurt anything, and hey, why not?
Rod
