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Emulator - Z21

This module can be used to connect the railroad model station with XpressNet interface to the PC or smartphone using one of USB or WiFi interfaces. Also this board supports the S88 feedback bus.  


  • USB interface using LI100 protocol the PC programs like Rocrail and TrainController. 

  • WiFi interface to connect adapter to the smartphone of PC. The adapter works as an emulator of command station Roco Z21. 

  • XpressNet 3.0 interface with configurable bus address. 

  • S88 bus support with new S88N connector and changeable baud rate. Bus can be switched off if command station has it is own feedback interface. 

  • Supplied from XpressNet bus. No external power is required. 

  • Simple firmware updating using USB interface and the special PC program. 

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