We get asked lots of questions about using DCC with Kato model trains. DCC isn't popular in Japan where Kato trains are designed and manufactured, so sometimes they do things differently to other producers!

Here's some answers to some of the most common questions.

General DCC Questions

What is DCC?

DCC (Digital Command Control) is a system that allows independent control of multiple trains on the same track. Each locomotive has a unique digital address, and commands are sent via the track to control speed, direction, and lighting.

Can I run a DCC train on an analogue (DC) layout?

Many DCC locomotives include "dual-mode" decoders that can detect and operate on both DC and DCC systems. Sometimes this can be switched off with CV29. However, some features may be limited in DC mode.

Do I need a specific DCC system to use Kato trains?

Many Kato trains can be used with most standard DCC systems. However, some Kato locomotives require specific decoders due to their design. Some older models are particularly tricky to fit decoders. See the sections below for details on decoder compatibility.

Kato and DCC Compatibility

Do Kato make a DCC Controller?

No, but in some countries, a simple Digitrax controller is sold badged as a Kato item with adapters to easily connect to Kato Unitrack. This isn't available in the UK.

Do Kato Japan locomotives come with DCC installed?

Most Kato Japan locomotives come as DC models. However, many are "DCC-friendly" meaning they have space for a relatively easy decoder installation.

How about KatoUSA locomotives?

KatoUSA offers some locomotives pre-fitted with DCC, making it easier for users who do not want to install decoders themselves. When purchasing a KatoUSA locomotive, it is essential to check the specifications to ensure you are getting the version that matches your layout and control system. These models are available in three main versions:

• DC/Analog: These locomotives come without a decoder installed and are designed for use on traditional analogue layouts.
• DCC: These models come with a factory-installed DCC decoder, allowing digital control of motor and lights but without sound features.
• DCC with Sound: These locomotives include a factory-installed sound decoder, often from ESU LokSound or SoundTraxx, providing realistic engine sounds, horn, and other effects.

What are my options for installing DCC in Kato locomotives myself?

Kato locomotives designed for DCC have different installation options:

• Drop-in Decoders: Many Kato N scale locomotives, especially KatoUSA, support drop-in decoders from brands like Digitrax and TCS.
• Hardwiring a Decoder: Some older models or non-DCC-friendly Kato locomotives require hardwiring a decoder.
• Japanese DCC Decoders: Some Kato models, particularly Japanese prototypes, use Kato's own decoders such as the EM13 motor decoder and FL12 lighting decoder.

Please note that TrainTrax.co.uk does not currently stock third-party DCC decoders. You may need to source these from other specialist retailers.

What is the Kato EM13 and FL12 decoder system?

Kato Japan have commissioned specialized decoders for their N scale trains:

• EM13: A motor decoder that fits inside specific European and Japanese Kato trains without any soldering.
• FL12: A function decoder for controlling directional lighting (head/tail) in cab cars or multiple unit (EMU) trains.

These decoders are designed for Kato’s Japanese and European models and are not directly compatible with KatoUSA models. We understand they were designed by Digitrax under license so have many similarities with other Digitrax decoders.

Do Kato DCC decoders support RailCom or other feedback systems?

Kato’s EM13 and FL12 decoders do not support RailCom. However, third-party decoders from ESU, Zimo, and Lenz may support advanced feedback and bidirectional communication features.

Kato USA DCC Options

Are Kato USA locomotives DCC-ready?

Many Kato USA locomotives are designed for easy DCC conversion.

• N Scale: Most newer models have a "DCC-friendly" chassis allowing for easy installation of drop-in decoders from Digitrax, TCS, or NCE.
• HO Scale: Kato USA HO locomotives often feature an 8-pin or 21-pin DCC socket for easy decoder installation.

Which decoders are compatible with Kato USA models?

For N scale locomotives, common decoder choices include:

• Digitrax DN163K1C (for F3, F7, SD70ACe, etc.)
• TCS K1D4 (for many Kato N scale locos)
• NCE N12K1 (for certain Kato models) For HO scale, most models use standard 8-pin or 21-pin decoders from Digitrax, Lenz, ESU, or SoundTraxx.

Please note that TrainTrax.co.uk does not currently stock third-party DCC decoders. You may need to source these from other specialist retailers.

Sound and Advanced DCC Features

Can I add sound myself to my Kato trains?

We'd recommend buying items with sound factory fitted, as DIY sound installations in N scale can be challenging due to space limitations. Some options include:

• Using ESU LokSound Micro or SoundTraxx TSU-1100 decoders for N scale.

• Installing speakers in passenger cars or dummy units if space is limited. For HO scale, Kato locomotives can be upgraded with standard sound decoders and speakers.

Troubleshooting and Support

My Kato train is not responding to DCC commands. What should I check?

• Ensure the decoder is installed correctly and making good contact.
• Reset the decoder to factory settings (usually CV8 = 8).
• Verify that your DCC system is sending commands and that the track is clean.

Can I program Kato’s EM13 and FL12 decoders with standard DCC systems?

Yes, but these decoders do not always support read-back functions. Some systems may require programming in "Direct Mode" instead of "Paged Mode." Programme FL12 at the same time as EM13.

Need More Help?

We're not DCC experts, but we will try to provide support on products we have supplied. We cannot provide help for items bought elsewhere, including DCC Controllers.