Zimo MX638D – 21MTC – 20.5×15.5×3.5mm


Available on back-order

SKU: MX638D Categories: , Tags: , , ,


The Zimo MX638D 21MTC (21 pin) decoder is perfect for installation in HO locomotives equipped with a 21 pin socket, featuring 1.2A motor current draw, with the ability to peak up to 2.5A for 20s.

  • NRMA DCC data format with function mapping + Swiss mapping
  • 20.5×15.5×3.5mm
  • Track voltage: 10-24V
  • Motor max continuous current: 1.2A
  • Motor peak current (~20 sec): 2.5A
  • Functions max total current: 0.8A
  • Max total motor + function output: 1.2A
  • 6 amplified function outputs, 4 un-amplified function outputs
    • Take note of diagram below, FO3 + FO4 can be changed between amplified and un-amplified (logic level) function outputs via CV 8
  • Addresses 1-10239
  • Lighting effects: flashing, dimming, soft start, American lighting effects, etc.
  • Keep alive capacitor connection pads
  • Shunting mode
  • Support for automatic uncoupling
  • Advanced momentum features
  • Operable brake via function key
  • Programmable to two complete sets of CV’s
  • F07 + F08 can function as 2 servo outputs or SUSI clock and data connection
  • Railcom
  • Support for automatic braking, Lenz ABC, Märklin & Zimo HLU
  • Swiss Mapping
  • Operable on DC

Appropriate also for the bottom of the MX638D, wiring diagram for connection of stay alive capacitors.

View on the Zimo website: http://www.zimo.at/web2010/products/lokdecoder_EN.htm


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