21MTC Adapter Board 2 (51968)

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Multifunction Decoder:

Electronic Solutions Ulm: 21MTC Adapter Board 2 (51968)

Summary: The 21 MTC adapter board 2 is suitable for converting a vehicle without an interface. Helpful if one does not intend to wire the decoder freely or use more than four function outputs.

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General information
DCC Category
Multifunction Decoder
Manufacturer Electronic Solutions Ulm
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Manufacturer Part Number
Common Name 21MTC Adapter Board 2
UPC Number
Release information

Product URL External Product Link
Has computer interface
Firmware Upgrade Possible
Misc Details
Length 33.5 mm3.35 cm <br />0.0335 m <br />1.319 in <br />0.11 ft <br />
Width 20 mm2 cm <br />0.02 m <br />0.787 in <br />0.0656 ft <br />


This adapter board simulates the typical size and shape of Märklin® 6090x-decoders and can be installed in every suitable position.

Decoders with 21MTC connectors are simply plugged onto the adapter board.

On the output side, the adapter offers already soldered cables (appr. 20cm length) for all contacts needed.

There are amplifiers (appr. 250mA each) for function AUX3 and AUX4 (the decoder´s logical outputs)


  • 35.5mm x 20.0mm
  • With mounting tab: 40.5mm x 20.0mm

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