top of page

Econami Sound Decoder Function Mapping

The following information is supplied for users of the SoundTraxx Econami Sound Decoders that have been installed into their locomotive models by DCC Solutions. It provides the Function Mapping Assignments and some quick start information to help them with operating their sound equipped locos

Diesel Sound Decoder

Function                Description


0 (HEADLIGHT)        Directional Headlights

1                              Bell (If Applicable)

2 (HORN)                  Horn

3                              Short Horn

4                              Dynamic Brakes

5                              RPM + / Engine Start Up

6                              RPM - / Engine Shut Down

7                              Switching Mode - Reduces Speed 50%

8                              Mute

9                              Brake Apply/Release

10                              Guard - "All Aboard"

11                              FX3

12                              FX4

13                              Dimmer

14                              Couple/Uncouple

15                              Reserved

16                              Reserved

Steam Sound Decoder

Function                Description


0 (HEADLIGHT)        Directional Headlights

1                              Bell (If Applicable)

2 (HORN)                  Horn

3                              Short Horn

4                              Dynamic Brakes

5                              RPM + / Engine Start Up

6                              RPM - / Engine Shut Down

7                              Switching Mode - Reduces Speed 50%

8                              Mute

9                              Brake Apply/Release

10                              Guard - "All Aboard"

11                              FX3

12                              FX4

13                              Dimmer

14                              Couple/Uncouple

15                              Reserved

16                              Reserved

All functions can be reprogrammed to suit your own personal requirements.

Operating Your Diesel Locomotive


The SoundTraxx Diesel Engine Auto Start has been disabled during the installation programming of the decoder. The reason is that when you power up your DCC layout, every Soundtraxx Equipped Sound Locomotive will all start up at once. While you might like it that way, in time it will become annoying hearing all those sounds at once. It can be enable if you wish but it's best to call up the locos as you require them.

DCC Solutions has also:

1. Programmed the motor and speed settings to specifically suit your model for optimum running.

2. Selected the best available horn plus other sounds provided on the "out of the packet" sound decoder.

3. Programmed the sounds and volumes to provide a more realistic sound for your scale model.


Thank you for the opportunity to convert your diesel locomotive to DCC with Econami Sound and trust that you will enjoy operating your model 

Starting your Locomotive while the loco is stationary:

Enter the loco DCC address into your DCC Throttle.

Press F5 to Start Up your loco.

Press F6 to Shut Down your loco.

Press F8 to Mute the sound at any time.


While your loco is moving:

Press F5 to Notch Up the loco's engine.

Press F6 to Notch Down the loco's engine

Press F9 to apply the Brake and your loco will come to a stop. Press F9 again to release the brake.

Press Emergency Stop on your DCC Throttle and your loco will stop instantly and enter Shut Down Mode. To Start Up the loco again, press F5.

Operating Your Steam Locomotive

The SoundTraxx Engine Auto Start feature is not available on the steam decoders so your locomotive will start making a sound when your DCC layout is powered up.

Operating your steam locomotive functions is self explanatory and they work similar to the diesel decoders with the exception of F5 and F6 which offer a drifting or coasting mode when driving your steam locomotive.

DCC Solutions has also:

1. Programmed the motor and speed settings to specifically suit your model for optimum running.

2. Selected the best available whistle plus other sounds provided on the "out of the packet" sound decoder.

3. Programmed the sounds and volumes to provide a more realistic sound for your scale model.

Thank you for the opportunity to convert your steam locomotive to DCC with Econami Sound and trust that you will enjoy operating your model

The Econami Decoder


Resetting the Decoder

Should the decoder require a factory reset due to an issue with the decoder or you have made incorrect changes or not satisfied with the changes simply enter the value 8 in CV 8 then disable and reapply the power to activate the reset. This should be done on a "programming track" and not "programming on the main". A decoder reset will return all CV values to the original Soundtraxx factory settings. Any programming changes made by DCC Solutions or you ,the user, will be lost and will be required to be reprogrammed. It is advisable that a record of these changes be kept.


Hungry for More Info

Need more information about the Econami Sound Decoder and it's features, then visit the SoundTraxx Website

After a manual to read?

Then click on one of these.

bottom of page