Radio Block Centre is a specialised computing device with specification Safety integrity level 4 (SIL) for generating Movement Authorities (MA) and transmitting it to trains. It gets information from Computer Based Interlocking, Supervision Systems and from the trains in its competence area. It hosts the specific geographic data of the railway section and receives cryptographic keys from trains passing in. According to conditions the RBC will attend the trains with MA until leaving the section. RBC have defined interfaces to trains and to Signalling Control. HMI and a web based diagnostic platform completes the system.
RBC is designed to be able to implement ERTMS lev.3+ and can be evolved to implement Communication Based Train Control (CBTC) functions.
- The platform is based on a 2oo2HR architecture and is implemented with two independent and galvanically isolated processing sections, one system Master, the other Slave
- Each section is in turn made up of a pair of processors in 2oo2 architecture
- The interface with other ground subsystems (IXL, RBC, Supervision Systems) is provided by two Ethernet interface cards
- The interface with the GSM-R radio system is provided by special ISDN interface cards and Euroradio protocol.