The T4XA is a 4-function, multi-purpose HO-scale decoder. The T4XA may be used in locomotives which have ditch lights in addition to forward and reverse headlights.
IMPORTANT NOTE: The T4A decoder is identical to the T4 decoder, but does not include a harness! The T4A can be plugged directly into a locomotive's 9-pin connector. 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.
Note: As of August of 2022, All T4 decoders new come equipped with a plug/jack for a Keep Alive® with the corresponding connector.
Provides superior slow speed control and high performance under load.
Super-quiet motor control for "buzz" free motor performance.
Decoder will automatically detect DC power. You can also configure how your lighting effects function on DC.
This feature allows the decoder to talk to the command station. RailCom supports expansion for new features.
Allows you to make custom acceleration and deceleration curves.
This decoder can be used with 12 Volt bulbs.
Buttons 0 through 12 may be used to control the lighting functions of this decoder.
Choose from 20 separate user-programmable lighting effects!
Configure multiple different brightness levels for your LED's or incandescent bulbs.
Feature which prevents accidental/unwanted programming while activated.
Fully compatible with Airwire™ operation.
Configure custom speed curves and set speed limits.
All decoders are covered by a one year goof proof warranty. Please return in a small box.
You MUST register the failed decoder on our website at tcsdcc.com/warranty
Follow the instructions on the website before returning any decoders to TCS.