What is DCC and how does it work?
With Digital Command Control (DCC) you use a controller (also called cabs or throttles) to send information to a command station telling it what you want train X to do. The command station then takes this information, transforms it into a stream of digital code and sends it to the booster.
What does DCC Ready mean?
DCC ready means the loco has a socket fitted ready for a decoder to be plugged in once the blanking plug has been removed. DCC fitted or DCC onboard means a decoder has been fitted.
How does model railroad DCC work?
The DCC puts digital control information into the electrical power of the train. The DCC signal is put on the model railroad’s tracks. Then DCC mobile decoders in locomotives on the tracks use the DCC signal to power and control their locomotive’s speed, direction, and lights.
What is CV in DCC?
Configuration Variables or CVs are memory addresses within a decoder. They are the means for controlling the performance of a DCC decoder. The decoder’s software creates and maintains these addresses.
What is DCC model railroad?
Digital Command Control (DCC) is a standard for a system to operate model railways digitally. When equipped with Digital Command Control, locomotives on the same electrical section of track can be independently controlled.
Is DCC AC or DC?
DCC is square-wave AC whose frequency is modulated to embed a digital signal. This supplies the +12V and – 12V (or greater) to run the DC motors. The wave has to be +/- to allow reversing. Each decoder rectifies this square wave and applies DC to turn the motor, on command.
Can DCC run on DC track?
Most DCC locomotives can be run on conventional DC unless the decoder has been set to prohibit it. You can, with some DCC systems run one DC locomotive, but it’s not recommended, especially for N gauge.
How do I reset my DCC locomotive?
Typical Reset Values Don’t forget to cycle the track power OFF and then ON to complete the reset. This can be as easy as tilting the locomotive to raise the wheels on one side off the rail and waiting a few seconds. You may need to power cycle your DCC system too. CV8 is the Manufacturer ID.
When was the DCC protocol published by the NMRA?
The proposed standard was published in the October 1993 issue of Model Railroader magazine prior to its adoption. The DCC protocol is the subject of two standards published by the NMRA: S-9.1 specifies the electrical standard, and S-9.2 specifies the communications standard. Several recommended practices documents are also available.
What’s the difference between NEM and NMRA DCC standards?
One difference in wheel standards is notable: The NEM standard calls for a 3º taper of the wheel’s tread, whereas the NMRA only recommends a 3º taper. The NMRA DCC Standards fall under Electrical Standards. S-9.1.x and S-9.2.x cover DCC Standards
Why did the NMRA create Digital Command Control?
The NMRA created a standard protocol for command control, using digital technology, which is known today as Digital Command Control. The standard was created in response to the confusion in the marketplace caused by many incompatible command control systems which appeared and disappeared over the years.
What does the throttle mean in NMRA DCC?
It means that the throttle can be a simple device with a knob to control speed, or a complex device with a graphical interface. The NMRA DCC Standard describes only the signals on the rails. As part of the Standard, there are a number of mandatory functions the decoders must have, to insure inter-operability.