Introduced by Lionel in 1995, TrainMaster Command Command Control, or TMCC as it is commonly known, is a remote control digital command system for locomotives and accessories. With this system, you can address each locomotive on your layout individually to control its speed, direction, and other features such as lighting, sound, and couplers. You can also assemble multiple locomotive units into a train consist and run them with full coordination of speed, directional lighting and remote coupler operation.
The Trainmaster Command Control system works by sending a radio signal representing commands entered on a CAB-1 handheld remote controller to a Command Base connected to your layout. The Command Base has the capability of simultaneously receiving and processing signals from multiple CAB-1 controllers making it possible for several individuals to operate their own trains without conflict.
The Command Base assembles CAB-1 commands and re-transmits them through a single wire connected to the common rail of your layout. The common rail serves as a broadcast antenna, carrying the digitally coded radio signals throughout the layout.
TMCC compatible locomotives have their own radio receivers, each with their own assigned identification number. These locomotives continuously listen for their specific commands, and respond to them independently of commands intended for other locomotives on the same layout. With TMCC, you can exercise full, independent control of each locomotives features including speed, direction, sound, lighting, and coupler operation. Track voltage is maintained at a constant level, and there is no need for complicated power blocks to control individual locomotives.
The Lionel web site contains an animated overview of the operation and features of the Trainmaster Command Control system at:
For additional technical information, including a helpful tutorial on the operation of the Trainmaster system, you are encouraged to visit the Coil Couplers website at:
Today, all but the very inexpensive engines produced by Lionel include TMCC capability. In fact, most of the new locomotives produced by K-Line, Weaver, Atlas O, and 3rd Rail come equipped with Trainmaster Command Control licensed from Lionel. All of these engines can be run with one another independently, or in any lashup combination. But what about engines that do not have TMCC capability? Your existing engine fleet may consist of older production Lionel, including pre-war and post war locomotives. It may also include engines from other manufacturers that have nothing more than a reversing unit installed. To receive the full benefit of TMCC, you will want every engine on your layout to have TMCC capability.
Digital Dynamics makes it easy and affordable for you to convert all or part of your locomotive fleet to TMCC. Whether you operate 3-rail O Gauge, 2-Rail O Scale, G Gauge, or S Gauge, Digital Dynamics has the components you need and can help you to realize how simple and affordable it is to modernize your engine fleet.
Still have questions? Are you unsure which components you need? Then visit the Applications Section to help you determine what components your engine needs.