ISO/IEC/IEEE 8802-3:2017 呼吸保护装置 人为因素 第8部分：人类工效学因素

标准编号：ISO/IEC/IEEE 8802-3:2017

中文名称：呼吸保护装置 人为因素 第8部分：人类工效学因素

英文名称：Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Specific requirements — Part 3: Standard for Ethernet

发布日期：2017-03

标准范围

ISO/IEC/IEEE 8802-3:2017定义了以太网局域网、接入网和城域网。以太网是以选定的操作速度指定的；并且使用公共媒体访问控制（MAC）规范和管理信息库（MIB）。具有冲突检测的载波侦听多路访问（CSMA/CD）MAC协议指定共享介质（半双工）操作以及全双工操作。速度专用媒体独立接口（MII）为选定的物理层实体（PHY）提供了一个体系结构和可选的实现接口。物理层对用于传输的帧进行编码，并使用为操作速度、传输介质和支持的链路长度指定的调制对接收到的帧进行解码。其他指定的功能包括:控制和管理协议，以及通过选定的双绞线PHY类型提供电源。

ISO/IEC/IEEE 8802-3:2017 defines Ethernet local area, access and metropolitan area networks. Ethernet is specified at selected speeds of operation; and uses a common media access control (MAC) specification and management information base (MIB). The Carrier Sense Multiple Access with Collision Detection (CSMA/CD) MAC protocol specifies shared medium (half duplex) operation, as well as full duplex operation. Speed specific Media Independent Interfaces (MIIs) provide an architectural and optional implementation interface to selected Physical Layer entities (PHY). The Physical Layer encodes frames for transmission and decodes received frames with the modulation specified for the speed of operation, transmission medium and supported link length. Other specified capabilities include: control and management protocols, and the provision of power over selected twisted pair PHY types.

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