4-fold decoder for single coil turnouts for DCC Digital and LGB, PIKO G, KATO, TOMIX and ROKUHAN turnout drives from our Digital-Professional-Series !

1-DEC-DC for the digital switching of single coil turnout drives for DCC digital-systems as finished module in a case.

Features of the 1-DEC-DC

For the digital control of:

  • Up to 4 LGB turnout drives (LGB Part No. EPL 12010).
  • Up to 4 PIKO G turnout drives (PIKO Part No. 35271).
  • Up to 4 KATO (UNITRACK) turnout drives with the exception of the Double Crossover Track 20-210..logo_kato.jpg
  • Up to 4 TOMIX turnout drives.
  • Up to 4 ROKUHAN turnout drives.
  • Each output can be loaded with nominal current up to 1 Ampere.

Simple and secure connection of electrical power supply and turnout drives by screw clips. The voltage will be supplied to the decoder by a separate input from an alternating voltage output of a model railway transformer (12 to 18Volt ~) or from an insulated power supply unit within a range of 15 to 24 Volt =.

1-DEC-DC is a 4-fold decoder with self learning decoder address:

  • The decoder address can be set by just pushing the 1-DEC-DC programming key and then a key of the turnout switchboard (also LGB Universalhandy 55015) or by a switch command through a PC with connected INTERFACE.
  • The decoder address will be permanently stored, but can always be changed by pressing the programming key again. It’s as simple as that !
  • Available as a ready for use finished module, finished module in a case or as a kit on a 86*76 mm pc-board with 4 bores for mounting purposes (suitable installation material) can be ordered under accessories).
  • Switching of turnouts or signals with the LGB Universalhandy 55015 is possible. For programming the 1-DEC-DC decoder is the “Programmer” not required.
  • The 1-DEC-DC can now shift turnouts with the function keys F1 to F4 of loc-addresses (e.g. Lokmaus 2®and R3®from Roco)!
  • Decoder from our Digital-Professional-Series can be operated without any difficulty from your digital controlled model railway. This decoder is 100% compatible with the DCC standard. The finished module and the finished module in a case comes with 24 month warranty.
  • Each 1-DEC-DC Decoder will be supplied with a detailed operating-/respectively assembly instruction. Those instructions can be found within the next section.


Instructions regarding this article can be found here: Downloads 1-DEC-DC.
Instructions for all LDT-Components can be found here: Overview Downloads.


Sample-connections regarding this article can be found here: Sample-Connections 1-DEC-DC.
Sample-connections for all LDT-Components can be found here: Overview Sample-Connections.

Add to Wish List / Prices

Attention: Products can only be added to the Wish List, if you are registered as customer at the LDT WebShop or if you are initially registered by interest of our products.

Add to Wish List: 1-DEC-DC-B (Part-No.: 110411): 4-fold turnout decoder for DCC digital-systems
as a kit (38,90 €*).
Add to Wish List: 1-DEC-DC-F (Part-No.: 110412): 4-fold turnout decoder for DCC digital-systems
as a finished module (52,90 €*).
Add to Wish List: 1-DEC-DC-G (Part-No.: 110413): 4-fold turnout decoder for DCC digital-systems
as a finished module in a case (56,30 €*).

* All prices incl. VAT, plus Shipping.

Subject to technical changes and errors.
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