IEC 61375-2-3:20 15规定了列车编组之间的数据交换规则。这些规则的聚合定义了TCN通信简档。通信简档的目的是确保所述列车组成之间关于信息交换的互操作性。为此，它定义了通信互操作性所必需的所有项目: -具有与不同列车视图相关的定义的列车方向的架构； -公共功能寻址概念； -用于功能之间数据交换的通用通信协议； -用于列车通信控制的一组服务。

IEC 61375-2-3:2015 specifies rules for the data exchange between consists in trains. The aggregation of these rules defines the TCN communication profile. The objective of the communication profile is to ensure interoperability between consists of the said trains with respect to the exchange of information. For this purpose it defines all items which are necessary for communication interoperability:
- an architecture with defined train directions related to different train views;
- a common functional addressing concept;
- common communication protocol for data exchange between functions;
- a set of services for train communication control.