DCC
Digital Command Control
The digital system uses only two wires for transmiting orders to the layout, the track. We can control locomotives, turnouts and signaling. The track voltage is diferent from an analog model railroad, here goes power and data according to NMRA standards.
The main components of a DCC system are:

The description and construction of each component is:
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Controls the model railway |
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Send power and data to the track |
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Instaled on every locomotive controls its speed and lights |
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Adds supplementary functions or sound to a locomotive |
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Controls turnouts and signaling |
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Detects trains for automatic control |
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Bi-directional communications |
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Computer |
Automatic control of the layout |
| CV |
Configuration Variables |
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Other kits for the layout |