Data Transmission Network (DTN) HS2

The HS2 Data Transmission Network (DTN) will provide network transport services and specific central service functions necessary for the reliable operation of trains on HS2. The DTN shall fulfil the following high-level requirements: • Provision of a Critical network for safety-related connected sub-systems: DTN-Critical • Provision of a Protected network (DTN-P), distinct from the critical DTN network, connecting non-safety-related subsystems. • Provision of a secure, geo-redundant external interface via a De-Mili...