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  • Interface Type: Drop-In
  • Dimensions (L x W x H): 3.041" x 0.355" x 0.089" or 77.25mm x 9.02mm x 2.26mm
  • Scale: N Scale
  • Continuous/Peak: 1.0/2.0 Amp
  • Total Functions: 4
  • Function Rating: 80 mA
  • 12V Outputs: 2
  • LED Outputs: 2
  • Onboard LEDs: 2

The ALD4 is a N-scale drop-in decoder for Atlas locomotives.

Examples include the following from Atlas:

  • GP40
  • SD50
  • SD60

See the installation pages for 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.

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