通信收发器资格要求 以太网

[中文适用范围]： 本SAE推荐实践涵盖了以太网物理层（PHY）资格的要求（适用于其他高速网络[如音频总线、LVDS、Ser-Des等]）。本文档中所述的要求为IC中的PHY提供了最低性能标准水平，所有兼容的以太网通信PHY都应按照此标准设计。当通信芯片组为具有集成汽车PHY（xBASE-T1）的以太网交换机时，测试应包括所有交换机PHY端口以及每个控制器接口的性能。IC中的其他功能不作为本SAE推荐实践的一部分进行测试或资格认证。这确保了所有连接的设备之间具有鲁棒的串行数据通信，无论供应商是谁。SAE J2962-3的目标是实现OEM之间以太网PHY批准过程的统一。预期受众包括但不限于以太网PHY供应商、组件发布工程师和车辆系统工程师。 [外文原描述]： This SAE Recommended Practice covers the requirements for ethernet physical layer (PHY) qualification (and as applicable to other high-speed networks [i.e., Audio Bus, LVDS, Ser-Des, etc.]). Requirements stated in this document provide a minimum standard level of performance for the PHY in the IC to which all compatible ethernet communications PHY shall be designed. When the communications chipset is an ethernet switch with an integrated automotive PHY (xBASE-T1), then the testing shall include performance for all switch PHY ports as well as each controller interface. No other features in the IC are tested or qualified as part of this SAE Recommended Practice. This assures robust serial data communication among all connected devices regardless of supplier. The goal of SAE J2962-3 is to commonize approval processes of ethernet PHYs across OEMs. The intended audience includes, but is not limited to, ethernet PHY suppliers, component release engineers, and vehicle system engineers.