LGB Decoder Interfaces

Latest update: 16 June 2016


Over the years, LGB has used different types of decoder interfaces in their locomotives.

The marking (1) and stickers (2-5) displayed below are usually found of the bottom of LGB locomotives that were manufactured before 2006. They are used to indicate the DCC / MTS status of a locomotive.

Locomotives manufactured after 2006 do not usually bear stickers indicating their DCC / MTS status; the information may be available in the user’s manual or on LGB’s website.

An LGB locomotive without one of the 4 stickers “2-5” is either manufactured after 2006, or missing its sticker, or pre-DCC / MTS. The locomotive may require disassembly to determine its DCC / MTS status. Pre-DCC locomotives should have their basic electronics removed for conversion to DCC.

LGB Decoder Interfaces MTS MZS DCC

  • #1 – Marking – An LGB locomotive with an engraved “D” on the bottom side of the gearbox is suitable for DCC (MTS). The “D” marking indicates that the gearbox is a 4-pin gearbox with a motor that is electrically isolated from the track. A gearbox without the “D” marking may have to be converted to a 4-lead gearbox to become suitable for DCC (MTS).
  • #2 – Sticker – indicates that the locomotive is DCC ready and equipped with a 6-pole decoder interface. An interface cable (e.g. Massoth #8312061 6-pin Interface cable) is required to connect a decoder to the locomotive’s PCB board. The 6-pin decoder interface is plug-and-play compatible with the LGB 55021 decoder, the Massoth L & XL decoders and the Massoth XLS sound decoder.
  • #3 – Sticker – indicates that the locomotive is DCC ready and equipped with a 10-pin direct decoder interface plug-and-play compatible with the LGB 55021 decoder, the Massoth L & XL decoders and the Massoth XLS sound decoder.
  • #4 – Sticker – indicates that the locomotive is DCC ready and equipped with an onboard-decoder that is suitable for both digital and analog operation. Adding sound to the locomotive is possible using for instance the Massoth S sound module.
  • #5 – Sticker – indicates that an LGB® locomotive is DCC ready and equipped with the new 10-pin DCC interface plug-and-play compatible with the LGB 55027 MTSIII decoder, the Massoth XL decoder and the Massoth XLS sound decoder.
  • #6 – Logo – In 2014 LGB introduced a new 28-pin decoder interface which they represented in their literature by symbol “6”. The interface, sometimes referred to as the LGB/Märklin Gauge 1 interface, is plug-and-play compatible with the LGB 55028 decoder, the Massoth XL-M1 decoder and the Massoth XLS-M1 sound decoder.

Source: Massoth / LGB / AllAboutLGB