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Division 2.2.2 Classes of Control-Command Systems

United Kingdom

Original text. Later amendments are not shown.

Within the Control-Command Subsystem two classes of train protection, radio communication, HABD and train detection systems are defined:

Class A:

  • The unified Control-Command system.

    • Class B:

  • Control-Command systems and applications existing before entry into force of the Directive 96/48/EC, limited to those described in Annex B.

    • In order to achieve Interoperability, the trains’ On-board Control-Command Assembly will provide:

    • the Class A radio and data communication interfaces to the infrastructure, in case of operation with Class A infrastructure,

    • the Class B radio and data communication interfaces to the infrastructure, in case of operation with Class B infrastructure. For signalling data, this can be achieved with the use of a Specific Transmission Module (STM) that allows a Class A On-board system to operate on lines fitted with Class B Track-side system using the Class B data. The interface between the Class A On-board system and STM’s is defined in this TSI.

    Member States have the responsibility to ensure that Class B systems are managed during their lifetime; in particular any changes to these specifications must not prejudice interoperability.