TCS 1446 ~ A4X-KA ~ HO DCC Drop In PNP Decoder ~ 4 Functions ~ Keep Alive Wires

The A4X-KA is four function HO-scale “drop-in” style mobile decoder for Atlas, Athearn, Kato, etc. locomotives.

Examples include the following:

Athearn:

F59PHI
F3

Atlas:

RS-1/RS-3/RS-11
C424
GP7

Kato:

GP35

See the installation pages for a full list of compatible engines!

The A4X-KA includes factory-installed Blue and Black&White wires to use when connecting Keep Alive®.

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.

Interface Type: Drop-In
Dimensions (L x W x H): 2.85″ x 0.682″ x 0.138″ or 72.39mm x 17.32mm x 3.51mm
Scale: HO Scale
Continuous/Peak: 1.0/2.0 Amp
Total Functions: 4
Function Rating: 100 mA
12V Outputs: 4
LED Outputs: 4