stan2004 posted:Assuming you have an MTH Scaletrax ITAD as shown above. Using the terminology of the Atlas diagram shown earlier, the "PWR" and "COM" connections from the train transformer must be as shown above; this may seem swapped/backwards but this is how to emulate the insulated-rail trigger method using an ITAD.
This method works fine when connecting to just one signal (NO to din #1 on switch 1). But if you connect switch 2 (din #2) to the same iPad, both signals turn red and never change.