DCCWiki is an encyclopedia for sharing information about Digital Command Control (DCC) as defined by NMRA used in railroad modelling. We also started a new section for the new Layout Command Control (LCC) standard from the NMRA which can be used to enhance your layout with signalling, accessory control, and other features.
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All DCC manufacturers want you to think you can run your entire layout using just 2 wires. This doesn't account for buses, feeders, networking wires, power cords, throttle networks, etc. If you are just starting, besure to read the Beginner's Guide to Digital Command Control first.