Module Introduction TCN(Train Communication Network) can be divided into two kinds of Buses, namely, WTB and MVB. Specifically, the WTB(Wire Train Bus) is used to connect every dynamically grouping vehicles, and the MVB(Multifunction Vehicle Bus) is used to connect the fixed devices in vehicles. Thereinto, the WTB takes charge of the communication between the carriages of the train. The Train Bus has 32 nodes at most. Every train can own one, or more than one nodes, or they can have no node, either. The MVB takes charge of the communication between the equipments within the carriages, and one MVB can own 4095 devices at most. WTB exchanges the information with MVB through the nodes, and one node can have 16 MVB at most. Application Field WTB is mainly used for all kinds of trains, in which the TCN is used. 【DOWNLOAD】