Lets make this post a one-place library for trolley car reversing electronics.
Here are scenarios for which basic circuits are needed. I am asking for the Electronic Wizards to post some build-able circuits that enable the following trolley car operations.
AC power compatible with DCS and Legacy will be from 3-rail track only (no trolley wire).
1. Smooth Reversing At Both Ends, No Time Delay & Continuous Operation
2. Smooth Reversing At Both Ends With An Adjustable Time Delay At Each End & Continuous Operation