Digital Command Control

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Digital Command Control (aka DCC) is a system for controlling model trains.

Electrical

Voltage

The actual voltage on DCC tracks differs depending on scale:

Scale Voltage Single Supply[1]
Z 10 - 12 ~24
N 12 - 14 ~28
HO, S, O 14 - 16 ~32
G, Large 22 - 24 ~48
  1. Virtual ground half way

Device Types

Protocol

Miscellaneous Links