COM34XX - Unmanaged 5-Port Ethernet Switches

The COM3400 and COM3420 have been proven to survive the rigors required for Railway Vehicles including:

  • Electrical surges and transients of EN 50155 / EN 50121-3-2. The COM3400 is also compliant to BRB RIA-12.

  • Shock and vibration in accordance with EN 50155 / EN 61373.

  • Operating temperature range of -40°C to +70°C and relative humidity 5% to 95% non-condensing.


  • 5 port unmanaged Ethernet switch.
  • 10/100 Mbps Wired Ethernet in accordance with IEEE 802.3 via M12 D-Code connector.
  • One RS232 serial communications port.
  • LED indicators for power, Ethernet link and Ethernet activity.
  • Suitable for nominal battery voltages of 24VDC or 110VDC in accordance with EN 50155. 110VDC option is RIA-12 Compliant. 
  • Operating temperature range: -40°C to +70°C (+85°C for 10 minutes). 
  • Conformal Coating. 
  • EN 50155 Compliant.