 | Parts of this article (those related to complete the article with the new technologies Ethernet Consist Network (ECN) and Ethernet Train Backbone (ETB) as alternative vehicle/train busses) need to be updated. (May 2021) |
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (May 2021) |
| Train communication network (TCN) | |
|---|---|
| Governing body | TrainCom |
| Protocol information | |
| Type of network | Device bus, process control |
| Physical media | Twisted pair, glass fiber |
| Network topology | Bus |
| Device addressing | hardware/software |
The train communication network (TCN) is a hierarchical combination of two fieldbus networks for data transmission within trains. It consists of the Multifunction Vehicle Bus (MVB) inside each vehicle and of the Wire Train Bus (WTB) to connect the different vehicles. The TCN components have been standardized in IEC 61375.