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Products > EWDS-02


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Early Warning Detection System (EWDS-02) - is designed to meet the requirments of EN50121.3-2 and SIL2 for Rail Maintence Machines. It provides the operators with speed, distance and direction of travel of each machine in a consist and warns the operators if a potential collision is detected. The system can also be expanded to include Remote Log retrieval, Remote Updating, GPS Tracking, Points Of Interest (POI) Warnings and Personal Proximity Detection (PPD) for track workers.



  • Rail Maintenance Machines (where SIL compliance is required)


  • Operators Control Panel (OCP): 7" Colour touch screen terminal
  • Radios: Dual long range Omni-directional & short-range directional Time of Flight (TOF)
  • Monitors: Location, Speed, Detection & Seperation
  • Alarms: O/Speed, Distance Warning, POI (option), System Alarms
  • Inputs: Digital Compass, Speed, Machine Rotation, Work/Travel Mode
  • Outputs: Machine Shutdown, Alert Beacon
  • Operating Distance: 0-6km
  • Accuracy: +/-2m
  • Alarms: O/Speed, Distance Warning, POI (option), System Alarms
  • Alarm & Event Logging
  • System Volts: 12-24Vdc
  • GPS Tracking (Optional)
  • Remote Log & Updating (Optional)
  • Personal Proximity Detection (Optional)


  • EN50121.3-2, C-Tick, SIL2