道路车辆 本地互连网络（LIN） 第4部分：电气物理层（EPL）规范 12 V/24 V

[中文适用范围]： 本文件规定了LIN通信系统中12 V和24 V电气物理层（EPL）的技术要求。LIN的电气物理层设计用于低成本网络，其比特率最高可达20 kbit/s，用于连接汽车电子控制单元（ECUs）。所使用的传输介质为每个接收器和发送器相对于地的单根导线。附录A提供了针对命令节点和响应节点的UART类型和帧控制器的LIN物理层外围接口设计建议。本文件包括传输本身的电气特性定义，以及对总线驱动设备基本功能的说明。本文件还提供了根据C、D或E程序之一定义的具有LIN AA功能节点的物理层定义。本文件中所有参数均适用于环境温度范围为40 °C至125 °C的条件。 [外文原描述]： This document specifies the 12 V and 24 V electrical physical layers (EPL) of the LIN communications system. The electrical physical layer for LIN is designed for low-cost networks with bit rates up to 20 kbit/s to connect automotive electronic control units (ECUs). The medium that is used is a single wire for each receiver and transmitter with reference to ground. Annex A provides recommendations on the LIN physical layer peripheral interface design of type UART and frame controller for commander and responder nodes. This document includes the definition of electrical characteristics of the transmission itself and also the documentation of basic functionality for bus driver devices. This document also provides the physical layer definitions for nodes with LIN AA capabilities according to one of the procedures C, D and E. All parameters in this document are defined for the ambient temperature range from −40 °C to 125 °C.