Advanced electronics for T478.3 by Roco in TT scale

A complete electronics module for expanding the lighting options for the T478.3 model from Roco in the TT scale according to the operation in the times of ČSD era. The module is ready for direct installation, without the need for mechanical travel adjustments. The set also takes into account the full sound of the model and the package contains all the components necessary for successful installation in the model. The module is compatible with decoders with the Next18 interface. There is either version with cold white and warm white to fit precisely to model epoque.

It is also possible to build in a sound decoder, loudspeaker and power-pack in the model.


Určené pro modelyRoco – type: 36250, 36251, 36252, 36253, 36254, 36255,
36256, 36257, 36258, 36259, 36260, 36261, 36262, 36263, 36265
DCC decoder interfaceNEM662 – Next18
Max. DCC voltage25V
Max. current1A
Typové označeníWarm white – T4783-RC-WW-SET
Cold white – T4783-RC-CW-SET

Variants of light signals:

  • Train front signal (two white lights on the front of the locomotive)
  • Train end signal (two red lights on the end of the locomotive)
  • Shunting vehicle signal (ČSD) / Occupied vehicle (ČD) (one white light on both fronts of the locomotive)
  • Shunting vehicle signal ČD (two white lights on both fronts of the locomotive)
  • Reflector (directionally dependent and independently controlled)

The module enables high model fidelity. The tail lights can be switched on separately, so that, for example, locomotive lighting can be achieved for push mode, when the headlights are not lit. Detailed settings of all CV registers are clearly listed in the tables at the end of the manual. Even DCC newbie can according this table easily setup loco!

Verified decoders:

  • Zimo (all nonsound with Next18 interface and sound MX659N18)
  • Kuehn (all with Next18 interface)
  • Lenz Silver+ (with Next18 interface)

Sound and Power-Pack:

This advanced electronics module is fully adapted for mounting with a sound DCC decoder. When ordering sound project from Jacek, please notify him of future installation this version of electronics. It is also possible to build in a sound in the model and power-pack. To fit a power-pack, simply connect a set of suitable electrolytic capacitors to the designated smd pads(see manual). Other electronics are already implemented on the module board.

Manual: Návod k T4783-RC-CW/WW-Set [CZ]

Article about instalation: MODULY Brno – Brejlovec – digitální rekonstrukce

Price: 760Kč incl. VAT

This electronics module can be purchased at the TT-Modelář online store – .

If you are not sure about colour of LED you want, then look on next photo of true design.