TCN Communication

The basic components of a communication network for railway vehicles (TCN – Train Communication Network) include the Wire Train Bus (WTB), which ensures data communication across the entire train set, and the Multifunction Vehicle Bus (MVB), which facilitates data exchange (communication) within a single railway vehicle or a consist of tightly connected railway vehicles. Each consist connected to the WTB bus must be equipped with a WTB communication node (WTB Gateway). Through this node, the MVB communication network can also be connected, in which case it is referred to as the TCN WTB/MVB Gateway.

AMiT provides a complete TCN communication solution to ensure interoperability between different cars according to IEC 61375. The WTB nodes can integrate any combination of three types of local communication within the consist—MVB, CAN, and Ethernet (including TRDP support).

Two hardware concepts are available—modular (van-based) and compact. The van-based concept supports redundancy at the level of the communication node (gateway) and power supply, ensuring high reliability and availability of train communication. All communication buses are certified according to UIC 556, and the custom solution design complies with EN 50155. For designing and diagnosing TCN communication, AMiT also provides WTB and MVB bus analyzers.