A digital command control system was developed (under contract) by Lenz Elektronik GmbH of Germany in the 1980s for two German model railway manufacturers, Märklin and Arnold (models).
•
Several major manufacturers (including Roco and Hornby and Bachmann), have entered the DCC market alongside makers which specialize in it (including Lenz, Digitrax, ESU, ZIMO, Kühn, Tams, North Coast Engineering (NCE), and CVP Products' EasyDCC, Sound Traxx, Lok Sound, and Train Control Systems).
•
A DCC command station, in combination with its booster, modulates the voltage on the track to encode digital messages while providing electric power.
digital | RAF Bomber Command | Digital Equipment Corporation | Strategic Air Command | Centers for Disease Control and Prevention | Air Training Command | Digital Audio Broadcasting | Transmission Control Protocol | Air Education and Training Command | digital television | Digital data | Centers for Disease Control | Digital Millennium Copyright Act | United States Central Command | IV Fighter Command | digital download | Digital Spy | Digital rights management | Digital terrestrial television | Air Defense, Tactical Air Command | Tactical Air Command | United States Pacific Command | air traffic control | Sloan Digital Sky Survey | gun control | Command & Conquer | Command and Staff College | RAF Coastal Command | Media Control Charts | Digital television transition in the United States |
Modern HOm trains run on realistic-looking two-rail track, which is powered by direct current (varying the voltage applied to the rails to change the speed, and polarity to change direction), or by Digital Command Control (sending commands to a decoder in each locomotive).