EN 50155 Industrial Serial Device Servers

Moxa's serial device servers are designed to make serial devices network-ready in an instant, and provide your PC software direct access to serial devices from anywhere on the network. Moreover, they are compliant with EN 50121-4 and essential sections of EN 50155, covering operating temperature, power input voltage, surge, ESD, and vibration, making them suitable for rolling stock and wayside applications where high levels of vibration exist in the operating environment.


  • Speedy 3-step web-based configuration
  • M12 connector and IP40 metal housing (NPort 5150AI-M12/5250AI-M12/5450AI-M12 Series)
  • EN 50155 and EN 50121-4 compliance (NPort 5150AI-M12/5250AI-M12/5450AI-M12 Series)
  • Real COM/TTY drivers for Windows and Linux
  • 2 kV isolation for serial signals
  • Built-in managed Ethernet switch in serial device server (NPort S8455/S8458 Series)

EN 50155 Industrial Serial Device Servers

    EN 50155 Serial Device Servers for Rolling Stock PIDS Application

  • RS-485 serial communications is useful for connecting multiple devices in one carriage with just one copper line. This is particularly common when connecting LED displays, most of which are serial-based and will be connected via a RS-485 network in linear multi-drop configuration. However, conventional RJ-45 connectors are not appropriate for railway applications where intense shock and vibration are common. Moxa’s specialized railway serial products are the solution here.

  • EN 50155 Serial Device Servers for Rolling Stock PIDS Application

EN50155 Products:

    NPort 5150AI-M12/5250AI-M12/5450AI-M12 Series EN 50155 Serial Device Servers
    NPort 5150AI-M12/5250AI-M12/5450AI-M12 Series

    EN 50155 1, 2, and 4-port RS-232/422/485 serial device servers

    NPort S8000 Series Combo Switch / Serial Device Server
    NPort S8000 series

    Combo switch / serial device server

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