Modular wiring, (Fort Pitt High Railers). Red, White, Blue and Black are the (4) Track circuits (A). Green wire is outside rail common (U). Note that both outside rails are connected with drops. This module has (2) sets of drops from the track. Most (6ft) modules seem to work well with one set of drops. We have upgraded modules by soldering jumpers across the track junctions to increase track conductivity.
Gargraves track with 14 ga. solid wire solder to the bottom of the rails before installation.
