Light-Signal Decoder for light-signals of the Deutsche Bundesbahn (DB) (German Federal Railway)

for train signals equipped with LED (light emitting diodes) for the data formats Märklin-Motorola and DCC from our Digital-Professional-Series !

Features of the LS-DEC-DB

Realistic switching of light-signals via accessory addresses:

  • With the Light-Signal Decoder LS-DEC is it possible to switch light signals via accessory addresses. Ideal for Digital Central Units which are switching turnout tracks and Model Railway Layouts which are controlled by PC and control software. The signal wiring will be simply connected to the signal-module by practical and secure clamps.
  • Up to two 7-aspect signals (advance- and main-signal on one common signal post) or four 2-aspect signals (e.g. block- or shunting signals) or two 3-aspect signals (e.g. main-signals) and two 2-aspect signals can be controlled by one Light-Signal Decoder LS-DEC.

The Light-Signal Decoder LS-DEC-DB is able of realistic control of 4 DB light-signals via decoder addresses.

  • Dark switching programable, if advance- and main signal are arranged on one common signal post.
  • Signal aspects will not simply be cross faded but as realistic the prior aspect will be firstly dimmed and after a short dark phase the new signal aspect will appear. The light emitting diodes will be dimmed up and down during this process.

above: conventional signal change by simple switching on and off. below: realistic signal change with dim- and dark phase with the Light-Signal Decoder LS-DEC.

  • With integrated series resistor for the light emitting diodes.
  • Suitable for all LED light-signals with common anode or common cathode.
  • In case you want to use light signals with incandescent lamps or light signals with light emitting diodes of company Besig (with constant working voltage) you can extend the Light-Signal Decoder LS-DEC-DB simply with our Adapter Adap-LS.
  • The signal current has not necessarily to be supplied by a booster but can be directly feeded into a separate input from a model railroad transformer. This saves expensive digital current.
  • By using a connector plug you can choose if you want to operate the decoder on a Märklin-Motorola system or on a digital system with the DCC Standard.
  • Decoder of the Digital-Professional-Series can be used on your digital system without any problems because they are compatible to the Märklin-Motorola-Dataformat respectively to the DCC Standard.
  • The finished module and the finished module in a case comes with 24 month warranty.
  • Each decoder LS-DEC-DB will be supplied with a detailed operating-/respectively assembly-instruction.
  • You can purchase the Light-Signal Decoder as a kit (-B), as tested finished modulen (-F) or as tested finished module in a case (-G). Suitable assembly material for the kit or the finished module is available under Accessories.


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


Sample-connections regarding this article can be found here: Sample-Connection LS-DEC-DB.
Sample-connections for all LDT-Components can be found here: Overview Sample-Connections.


A Digital-Compendium to this article can be found here: Digital-Compendium LS-DEC-DB.
An overview for all Digital-Compendium articles can be found here: Overview Digital-Compendium

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: LS-DEC-DB-B (Part-No.: 512011): Light-Signal Decoder for DB-Signals
as a kit (42,90 €*).
Add to Wish List: LS-DEC-DB-F (Part-No.: 512012): Light-Signal Decoder for DB-Signals
as a finished module (53,50 €*).
Add to Wish List: LS-DEC-DB-G (Part-No.: 512013): Light-Signal Decoder for DB-Signals
as a finished module in a case (56,90 €*).

* All prices incl. VAT, plus Shipping.
(All decoders are suitable for Märklin-Motorola and DCC digital-model rail roads.)

Subject to technical changes and errors.
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