本规范中包含的程序旨在涵盖任何USB电缆组件和相关连接的开发、生产和现场分析所有阶段的性能测试，这些组件和连接构成道路车辆应用中消费者外围接口和USB计算机源之间的电气连接系统。这些步骤仅适用于USB连接器和电缆。除非另有规定，本规范中列出的所有测试均适用于用户和非用户接口连接器。

Procedures included within this specification are intended to cover performance testing at all phases of development, production, and field analysis of any USB cable assemblies and associated connections that constitute the electrical connection systems between the consumer peripheral interface and the USB computer source in road vehicle applications. These procedures are only applicable to the USB connector and the cable. Unless otherwise specified, all of the tests listed in this specification are for both consumer and nonconsumer interface connectors.