DCC:
Digital Command Control.
DC or Direct Current:
An expression used to describe an electrical wave
form in which the voltage remains more or less at a value above or below 0
volts. DC is used by most model railroad locomotives. Sometimes referred to
as Analog.
Deceleration:
The rate at which the decoder decreases from one speed step to
the next in response to a new decrease speed command. Use CV04 to program
the deceleration value for each decoder. This feature is used to simulate train
momentum so that, just like the prototype, your model won’t stop immediately
when the brakes are applied.
Decoders, Mobile:
the electronic device installed in each locomotive that
receives the signal from the command station through the track, decodes it &
tells the loco what to do. Mobile decoders can also include function control,
speed stabilization(back emf), transponding and other features.
Decoders, Stationary (Accessory or turnout):
the electronic device for the
turnouts or other accessories that receives the signal from the command station
through the track, decodes it & tells the turnout/accessory what to do.
Decoder Status:
the Digitrax command station assigns each decoder a status
based on whether it is new to the system, in-use on a throttle, common in the
system and available for selection or idle. The decoder status determines how
the system treats that address.
Direct Home Wiring:
A wiring system in which the DCC booster powers each
rail through an individual conductor or wire. Each booster is wired to its own
power district and there is no common connection between boosters. Digitrax
strongly recommends direct home wiring.
Direct Programming:
A type of service mode programming.
Directional Lighting:
loco lights can be set up to automatically change so that
the forward lamp is lit when the loco is moving forward and the reverse lamp
is lit when moving in reverse.
Dispatching:
use your DT throttle to set up a loco or consist you want to be
run by an operator on a UT1 or UT2 (Utility throttle) or a BT2 (Buddy throttle)
and then using a couple of keystrokes, dispatch the loco from the DT throttle
and acquire it on the Utility throttle or Buddy throttle.
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