For a digital control of turntables without any alteration at the turntable! For the digital formats Märklin-Motorola and DCC.


Features of the TT-DEC

The TurnTable-Decoder TT-DEC is suitable for the digital control of Fleischmann-, Roco and Märklin-Turntables as per below table:

Gauge H0 Gauge N Gauge TT
max. 48 track connections max. 48 track connections max. 24 track connections
Fleischmann 6052, 6152, 6154, 6651
(each with and without “C”),
6652 (with 3-rail conductor)
9152 or 9152C 6680 or 6680C
Roco 35900
Märklin 7286

The command-set of the TT-DEC is compatible to the Märklin Turntable-Decoder 7686. This is a component of the Märklin Digital-Retrofit Kit 7687 for the Turntable 7286. Therefore is an immediate start of the TT-DEC on any command station or model railway software possible which is supporting the Märklin Turntable-Decoder 7686 respectively the Digital-Retrofit Kit 7687.

The digital format (Märklin-Motorola or DCC) and the location of the pit track connections are easily programmable via any command station which is able to switch turnouts or via a model railway software which supports the Märklin turntable 7686. Any pit track connection of the turntable can be programmed as track 1 (reference track).

Turntables with 48 or 24 track connections can be directly digital controlled by the TT-DEC.

The TT-DEC permits the step by step rotation to the right- or left side, the direct connection with pre-selected tracks and turning the movement direction of the turntable by 180 degree.

The rotation speed of the turntable can be individually adjusted via a potentiometer. The motor of the turntable receives a stabilised direct voltage for a steady turning movement of the bridge track.

The Turntable-Decoder TT-DEC is as well able of a digital operation of Märklin- und Fleischmann-turntables with a refit of a Bell-type armature motor supplied by sb modellbau.

The plug of the 6-poles ribbon cable of the Märklin-Turntable 7286 can be directly plugged onto the pin plug bar of the TT-DEC.

If the Turntable-Decoder TT-DEC will be extended by a PermanentPowerSwitch Unit DSU is always a correct polarity connection of the bridge track on the 2-conductor-Fleischmann turntables possible. Therefore is no reversing loop module for the bridge track required.

Turntable-Decoder TT-DEC with PermanentPowerSwitch Unit DSU for the polarity of the bridge track.

If the turntable will be in the line-up track position this can be reported to the model railway software via the feedback output of the Turntable-Decoder TT-DEC.

The finished module in a case comes with 24 month warranty.
Each TurnTable-Decoder TT-DEC will be supplied with a detailed operating-/ assembly instruction. Those instructions can be found within the next section.

The TT-DEC is available as a kit (-B) or as checked finished module in a case (-G). Suitable assembly material for the kit is available under Accessories.


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


Sample-connections regarding this article can be found here:
Sample-Connections TT-DEC Märklin and
Sample-Connections TT-DEC Fleischmann.
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: TT-DEC-B (Part-No.: 010501): TurnTable-Decoder as a kit (79,90 €*).
Add to Wish List: TT-DEC-G (Part-No.: 010503): TurnTable-Decoder as a finished module in a case (119,90 €*).

* All prices incl. VAT, plus Shipping.

Subject to technical changes and errors.
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