Portal: DCC

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Digital Command Control (DCC) is a scheme for controlling locomotives on a model railroad layout. It allows more than one locomotive to occupy the same electrical section of track.

The most basic Digital Command Control (DCC) system consists of several parts: a throttle, a command station, a booster, a decoder, and a power supply to run it all. Most systems also use a throttle network which allows multiple throttles to talk to the command station.

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Command Stations are the heart of the DCC system. They receive commands from a throttle network (such as the Digitrax Loconet), process them, and decide if it needs to make a DCC standardized packet to send to the decoders on a DCC system.

Full article Command station


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A Tsunami DSD in relation to an N Scale FA-1 (Atlas), with an HO scale FA/FB-1 chassis in the background. Also note the speaker and it's size.


Did you know...

That the first system that allowed independent control was the Lionel Electronic Control system, back in 1946? The first digital system was the Hornby Zero 1? That General Electric (which built full size locomotives) developed a command control system for model railroads in the 1960s?

See DCC History for more information


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Wiring  · Trackwork · FAQs


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Related Topics



Understanding the basics

Intermediate Topics

Should include things like layout wiring, typical decoder installations, helper operations, basic decoder programming.

Advanced Topics

Expert Topics

  • Do-It-Yourself - Building DCC components from scratch - boosters, command stations, etc.

Appendix 1 - FAQs

  • FAQ - Frequently asked questions

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