Division 3.2.5.2 Control-Command Compatibility.

Chapter 4, supported by Annexes A and B, defines the requirements for the interoperability of the Control-Command Subsystem.

In addition, this TSI together with the Control-Command TSI for the trans-European conventional rail system ensures, as far as the Control-Command Subsystem is concerned, the technical interoperability between trans-European high speed rail and conventional rail systems when both are fitted with Class A system.