IEC 62580-1:20 15规定了车载多媒体和远程信息处理子系统(OMTS)的总体架构，其中包括四类多媒体和远程信息处理子系统，标识为: -视频监控/闭路电视， -面向驾驶员和机组人员的服务， -以乘客为本的服务及 -培训面向操作员和维护人员的服务。本部分规定: -OMTS和车载通信系统之间的边界，如IEC 61375系列所述， -根据抽象模型描述OMTS的方法， -指明每个类别所提供/需要的服务的一般原则和基本要求， -确保服务之间互操作性的方法。

IEC 62580-1:2015 specifies the general architecture of the On-board Multimedia and Telematic Subsystem (OMTS), which includes four categories of multimedia and telematic subsystems identified as:
- Video surveillance/CCTV,
- driver and crew orientated services,
- passenger orientated services and
- train operator and maintainer orientated services. This part establishes:
- the boundary between the OMTS and the on-board communication system, as described by the IEC 61375 series,
- the methodology to describe an OMTS in terms of abstract model,
- the general principles and the basic requirements to specify the services provided/needed by each category,
- the approach to ensure interoperability between services.