T4X decoder

T4X decoder

The T4X has added Blue and Black/White wires to use a KeepAlive device. This model now includes a 2-pin JST Plug for the KA-P Family of KeepAlive® devices. This decoder may be hard-wired or plugged directly into any locomotive with a 9-pin JST plug. The T4X may be used in locomotives with ditch lights and forward and reverse headlights.

Note: As of August 2022, All T4 decoders now come equipped with a plug/jack for a Keep Alive® with the corresponding connector.

Harnessed variant SKUs of the T-series have also been discontinued. If your locomotive is equipped with an 8-pin NMRA plug, you should consider the DP2X, or use the T4A with an adapter harness which can be found under our Harnesses section.

• 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.
• 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.