Train communication network (TCN)

The WTB bus (Wire Train Bus) is a basic building block of communication between cars within the train communication network (TCN). It ensures interoperability between different cars (according to IEC61375-1).

The uniqueness of the AMiT WTB node solution (also known as gateway) lies in the simultaneous connection of up to 3 types of local communications within one vehicle:

• MVB (Multifunction Vehicle Bus)
• CAN
• Ethernet

The WTB, MVB lines are duplicated, the Ethernet is connected with a robust M12 connector, and the CAN bus enables chained connection.

The WTB gateway AMiT is available in two versions – as a compact (stand-alone device) or modular (card into the bathtub). The modular solution is based on the van concept of the superior RAVA control system , which enables a redundant solution at the level of the WTB gateway and the power source, which significantly increases the reliability and functionality of the communication node.

• compact and modular WTB gateway design
• WTB gateway with simultaneous connection of up to 3 interfaces
• WTB interface with doubled line
• inputs/outputs via WTB
• Ethernet 100 Mb/s via M12 connection
• MVB interface type EMD with doubled line
• CAN interface daisy-chained
• gateway and power redundancy support
• extended temperature range of operating temperatures -40 °C to 70 °C
• wide power supply range from 24 V DC. up to 110 V DC
• certified according to UIC 556
• construction according to EN 50155