I described setting up the DCC system with two circuit breakers, NCE EB1s, dividing the layout into two power districts in an earlier post. In the photo above, one can see the bus for each with the end of the eastern power district visible towards the front of the layout. Each bus is made up of a pair of #14 red and black wires. Black out, or towards the aisle, is the protocol that I have established for consistent "polarity," and I drilled holes in the supports to allow room for my plan to use suitcase connectors to attach the feeder wires.
The photo to the left shows the end of the "Power District West." I terminated this bus at a European style terminal strip or barrier strip. After the drop down staging has been designed and built, it will also be powered by this power district. All I needed to do at this end of the bus was to tin the stranded #14 wire before screwing it into the terminal strip. For the standard barrier strips I soldered on #6 spade connectors.
The photo to the right shows the "tee" for "Power District East." The bus begins at a circuit breaker on the other side of the panel and then separates into the two sides of the top of the "tee" at the barrier strip. I decided on this approach as the circuit breaker is located in the middle of the power district.
The photo to the left shows the east end which terminates in a barrier strip and a Molex connecter. As the staging module that connects to the layout at this end already is set up with a Molex connector, I decided to stay with that system here.
At this point the bus wires are installed for the DCC system. No matter where I decide to start laying track and wiring it, the bus is set up and ready.
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