About the On-Board Mass (OBM) Functional and Technical Specification

The On-Board Mass (OBM) System Functional and Technical Specification contains requirements for:

  • Physical characteristics
  • Environmental characteristics
  • Data collection
  • Record generation
  • Functionality
  • Data storage
  • Data security and transfer
  • Interconnection to a Telematics In-Vehicle Unit (IVU)
  • Installation, calibration, operation and maintenance.

 

 

 

Categories of OBM Systems

The Specification differentiates OBM Systems into three categories, as detailed in the table below:

Category Description
Category A OBM Systems that electronically display mass information to drivers and/or loaders
Category B OBM Systems that collect and transmit mass information to Telematics In-Vehicle Units (IVUs)
Category C OBM Systems that collect and transmit mass information in a standardised way to telematics devices (in accordance with TCA's Interconnectivity Specification) providing ‘plug and play’ capabilities to Telematics In-Vehicle Units (IVUs)

 


Please find a copy of the On-Board Mass (OBM) System Functional and Technical Specification

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