Light-Signal Decoder for two Ks-Signals of the Ks-Signal Systems from the Deutsche Bahn (German Railway) with up to 16 Signal-Aspects.

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

You can purchase the Light-Signal Decoder LS-DEC-KS from us as a finished module in a case.

Features of the LS-DEC-KS

KS-Signals have been used by the Deutsche Reichsbahn (German State Railway) and the Deutsche Bundesbahn (German Federal Railway) since 1993 and will be used today from the Deutschen Bahn (DB) (German Railway) for new rail sections.

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.
  • Via the Light-Signal Decoder LS-DEC-KS is the digital switching of two Ks-Signals of the Ks-Signal system from the Deutsche Bahn possible. It is possible to connect and control Ks-Entry, Ks-Exit, Ks-Advance-Signals and as well Ks-Entry- and Ks-Exit-Multiple-Section-Signals with up to 16 Signal-Aspects.
  • The LED´s from the signals will flash realistic during the relevant aspects.

Sample Connection 1: Connection of Ks-Exit-Signal (left) and Ks-Advance-Signal (right).

Sample Connection 2: Connection of Ks-Entry- (left) and Ks-Exit-Multiple-Section-Signal (right) of company alphamodell which can be operated via the Adapter "Adap-LS-A".

  • 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.

bove: conventional signal change by simple switching. 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.
  • Ks-Signals from company alphamodell contain non-removable series resistors. To assure sufficient brightness of the LED`s is it possible to extend the Light-Signal Decoder LS-DEC-KS with the Adapter Adap-LS-A.
  • 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 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-Data format respectively to the DCC Standard.
  • The finished module in a case comes with 24 month warranty.
  • Each decoder LS-DEC-KS will be supplied with a detailed operating instruction.
  • You can purchase the Light-Signal Decoder as tested finished module in a case (-G).


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


Sample-connections regarding this article can be found here: Sample-Connectione LS-DEC-KS.
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-KS.
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-KS-G (Part-No.: 519013): Light-Signal Decoder for KS-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.
© 2022 by LDT

Recent changes RSS feed Creative Commons License Donate Powered by PHP Valid XHTML 1.0 Valid CSS Driven by DokuWiki Design by Chirripó