When you say no power to the track are you referring specifically to the siding? And if so, is there a switch in between the to shut off just the siding or is the turnout set for power routing (eg Kato turnouts provide for either power routing or non power routing) that disconnects the power to the siding?
Jack Fletcher said: ↑ show red when no power is applied to the track Glad you brought this up as I somehow was under the impression one color was for DC and the other to indicate DCC. Now going back to read the original post I can see I got that wrong. Sumner
I'm a bit confused too. When he indicated a separate buss feed then the only way shut off that siding is by using a separate switch to do so. If that's the case, fairly simple - replacing the switch with a 4PDT No center off , separate supply, current limiting resistor, and a red LED
