Digitrax DCC Systems & Accessories

Digitrax is one of the most proven and expandable ecosystems in model railroading for Digital Command Control (DCC). Whether you’re building your first DCC layout or running a multi-operator railroad, Digitrax systems are designed to scale with your needs—adding throttles, boosters, detection, signaling, and layout automation as you grow.

Shop Digitrax by Category

Digitrax DCC Starter Sets

TrainSupply.com is a train-focused store—so our Digitrax selection is built around real layout needs: reliable control, practical expansion, and the accessories that keep things running smoothly.

Command Stations & Starter Sets – the “brain” of your DCC layout
Throttles & Cabs – wired and wireless control options
Boosters & Power – add power districts and run more trains
LocoNet Accessories – expand and network your layout
Detection, Signaling & Layout Control – for advanced operations

What Is DCC?

DCC (Digital Command Control) sends digital commands through the rails so you can independently control multiple locomotives on the same track—speed, direction, lighting, and (when equipped) sound functions. This makes switching, consists, and prototypical operation far more realistic than traditional DC block control.

Why Model Railroaders Choose Digitrax

Expandable from day one – start simple, then add capability over time
Great for multi-operator layouts – add throttles and power districts as needed
LocoNet ecosystem – a widely used backbone for connecting accessories and controls
Solid interoperability – works with NMRA-compliant DCC decoders and accessories

Beginner-Friendly: What You Need to Get Started

If you’re new to Digitrax or DCC, here’s the basic roadmap:

DCC command station / starter set – generates DCC commands and runs the layout
Power supply / booster – powers the track (often included in starter sets)
Throttle – the controller used to run locomotives
DCC-equipped locomotive – either factory DCC or a decoder installed

Digitrax + LocoNet: A Layout That Grows With You

As your railroad expands, Digitrax makes it easy to build out additional control and reliability: separate power districts, additional throttles, turnout control, detection and signaling, and computer/automation options depending on how advanced you want to go. This flexibility is why Digitrax remains a favorite for home layouts, clubs, and modular setups.

Need Help Choosing the Right Digitrax Setup?

If you’re deciding between starter systems, throttles, boosters, or LocoNet expansions, shop our Digitrax selection above and use the FAQs below for quick guidance. (And if you’re building a larger system, start with how many locomotives/operators you want to run at once—then choose the right power and throttle setup from there.)

Digitrax FAQs

Is Digitrax good for beginners?

Yes. Many Digitrax starter systems are beginner-friendly, while still offering an upgrade path for larger layouts later.

What scales work with Digitrax DCC?

Digitrax works with HO, N, O and most other scales using NMRA-compliant DCC. The main consideration is choosing the correct power level for your layout and equipment.

Can I run multiple trains at the same time?

Yes. DCC is built for independent control of multiple locomotives on the same track. Your practical limit depends on available power, decoders, and how your layout is wired.

Do I need a computer to use Digitrax?

No. Digitrax systems run fine on their own. Computer integration is optional for advanced automation or interface tools.

What is LocoNet?

LocoNet is Digitrax’s expansion/network system used to connect throttles, boosters, and layout accessories. It’s a popular way to scale up control and accessories without rebuilding your entire setup.