The circuit board has been developed for the Märklin locomotives of the BR 55 series and fits exactly in place of the original decoder.

Despite the limited space, this adapter is also suitable for sound decoders. For this purpose the 21MTC connector has been angled 2°.

The connections Aux2 to Aux5 are led out directly from the 21MTC interface on pads. The function of these connections depends on the decoder used.

The wires of the locomotive are connected in exactly the same order as with the original decoder.

There is enough space for a loudspeaker above the PCB under the dummy carbon.
Use double-sided mounting tape to attach a loudspeaker to the upper side of the circuit board.

Prepared for LED tail light.

Delivery without decoder and without bulb. Use the existing bulb of the locomotive.

Operating Manual 8058