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QUOTE (Doug @ 18 Jan 2008, 14:06) <{POST_SNAPBACK}>To remedy the situation, you add a couple of reversing units to either end:

This allows you to keep all the DCC "polarity" the same in the center of the layout. This is where the stations and most of the activity occurs. It will help with wiring and reduce the chance of shorts.
If you are careful how you operate, you can use a single reverse unit for the middle section.

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