Division 7.2.6 Interfaces with class B systems

In every case, to support continued interoperability, Member States shall ensure that the functionality of legacy systems for radio and train protection (referred to in Annex B of the TSI), and their interfaces remain as currently specified. This requirement excludes those modifications that might be necessary to mitigate safety-related defects of these systems.

Member States shall make available the information that is required to support development and safety-certification of apparatus, to allow interoperability of Class A equipment with their legacy Class B radio and train protection facilities.