Firmware & Upgrade Solutions for Portable Message Signs

Not Sure Which Firmware You’re Running?

Amsig message signs operate on one of three firmware platforms:Signs manufactured since 2012 are typically equipped with WebbExpress firmware.

WebbExpress (WX):

  • Most signs built after 2012
  • Browser-based remote access
  • OTA capable

Gen Firmware:

  • Early NTCIP-compliant models
  • Color screen + QWERTY keyboard

Legacy Firmware:

  • Most signs were built before 2013
  • Operates with a rugged handheld terminal
  • Uses Easy Host software

If you are unsure which firmware you are running, contact Service with your trailer VIN.

WebbExpress Firmware

WebbExpress is American Signal Company’s industry-leading firmware platform built for intuitive programming, over-the-air updates, and full NTCIP compliance. Signs manufactured since 2012 are typically equipped with WebbExpress firmware.
  • Over-the-air update capability
  • Enhanced NTCIP communication compliance
  • Streamlined programming interface
  • Reduced operational downtime
  • Improved long-term reliability

Available Documentation:

PCMS Cheat Sheet (WX)
WX Operations Manual
WX Firmware Update Procedure
WebbExpress Upgrade Information

Gen Firmware Support

Gen firmware powers Amsig’s earliest NTCIP-compliant systems and remains supported for documentation and maintenance.

Legacy Firmware Support

Operating older Amsig signs? Many Legacy units can be upgraded to WebbExpress using a streamlined hardware conversion kit.
  • Modernized firmware platform
  • NTCIP communication compatibility
  • OTA functionality
  • Extended equipment lifecycle

NTCIP & Compliance

WebbExpress firmware supports industry-standard NTCIP protocols, allowing seamless integration with transportation management systems and ITS infrastructure.

Upgrading ensures:

  • Compatibility with DOT communication systems
  • Compliance with agency requirements
  • Scalable remote monitoring capabilities

Ready to Upgrade Your Fleet?

Speak with our Service Department to determine compatibility and receive upgrade guidance.

Find the Right AMSIG Solution

Answer three quick questions and get matched with the ideal message sign, ITS system, or safety solution for your use case.

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