本标准规定了开发航天器末端数据通信系统的要求。 具体来说，本标准规定: - 用于空间通信系统工程的术语。 - 根据ECSS-E-ST-10标准，将作为空间通信系统工程过程的一部分进行的活动。 - 关于功能和性能的空间通信系统的具体要求。 本标准涵盖的通信链路是在航天器操作期间使用的空间和空间 - 空间链接，以及在组装，集成和测试以及操作阶段期间使用的航天器的通信链路。 航天器终端通信系统包括三个不同领域的组件，即地面网络，空间链路和空间网络。本标准详细介绍了空间链路和空间网络的组成部分。但是，本标准只涵盖了提供终端通信服务所必需的地面网络的这些方面。 注意ECSS-E ST 70中介绍了地面网络的其他方面。 本标准可能针对某个空间项目的具体特征和限制

This Standard specifies the requirements for the development of the end­to­end data communications system for spacecraft. Specifically, this standard specifies: - The terminology to be used for space communication systems engineering. - The activities to be performed as part of the space communication system engineering process, in accordance with the ECSS-E-ST-10 standard. - Specific requirements on space communication systems in respect of functionality and performance. The communications links covered by this Standard are the space­to­ground and space­to­space links used during spacecraft operations, and the communications links to the spacecraft used during the assembly, integration and test, and operational phases. Spacecraft end­to­end communication systems comprise components in three distinct domains, namely the ground network, the space link, and the space network. This Standard covers the components of the space link and space network in detail. However, this Standard only covers those aspects of the ground network that are necessary for the provision of the end­to­end communication services. NOTE Other aspects of the ground network are covered in ECSS-E ST 70. This Standard may be tailored for the specific characteristics and constraints of a space project in conformance with ECSS-S ST 00.