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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