One Year Goof Proof Warranty
All TCS decoders are covered by a one year goof proof warranty.

The AMD4 is a N-scale drop-in decoder for Atlas locomotives. Examples include the following:

Atlas:

• B23-7/B30-7/B36-7
• C628/C630
• Dash8-32BW/Dash8-40B/Dash8-40BW
• RS11
• GP-38
• DCC-ready GP-40, GP-40-2, SD-7, SD-9, SD-35, U25B, and C-420

See theinstallation pagesfor a full list of compatible engines!

• Back EMF Load Compensation: Provides superior slow speed control and high performance under load.

• Quiet Drive: Super-quiet motor control for “buzz” free motor performance.

• DC Mode: Decoder will automatically detect DC power. You can also configure how your lighting effects function on DC.

• RailCom: This feature allows the decoder to talk to the command station. RailCom supports expansion for new features.

• Variable Momentum: Allows you to make custom acceleration and deceleration curves.

• LED Support: This product does not require external resistors when connecting LED’s.

• Incandescent Bulb Support: This decoder can be used with 12 Volt bulbs.

• Function Remapping: Buttons 0 through 12 may be used to control the lighting functions of this decoder.

• Programmable Lighting Effects: Choose from 20 separate user-programmable lighting effects!

• Dimmable Brightness: Configure multiple different brightness levels for your LED’s or incandescent bulbs.

• Decoder Lock: Feature which prevents accidental/unwanted programming while activated.

• Airwire Compatible: Fully compatible with Airwire operation.

• User-Loadable Speed Tables: Configure custom speed curves and set speed limits.