AlTrac 6482 OBU is the on-board unit available for ETCS Level 1 and Level 2. This OBU system enables interoperability on European lines and performs safe supervision of train movement with high availability.
The on-board system calculates the maximum permissible speed and the relevant braking curves. It monitors the current speed and initiates automatic braking if the permissible speed is exceeded.
The AlTrac 6482 OBU provides complete cab signalling by means of the Driver-Machine Interface (DMI) unit displaying information on speed limits and signal aspects in advance.
The OBU provides connections with peripheral components, with the brake actuator, with Train Interface Units (TIU) and with on-board equipment of national Automatic Train Control/Protection (ATC/ATP) systems by means of various interfaces and via standardised bus systems.
The connection between national Specific Transmission Module (STM) systems and the OBU is implemented by the Profibus interface which is compliant with the UNISIG specifications.
The AlTrac 6482 OBU can be optimised for the operational and commercial needs of the individual customer.
- High availability and fail-safe operations
- Fully automatic speed control and supervision
- Complete cab signalling
- Display of information on signal aspects and speed limits to the driver in advance
- Flexible connection due to standard bus systems
- Connection to national STM systems possible
- Economical operation