信息技术 系统间远程通信和信息交换 局域网和城域网 特定要求 第3部分:带碰撞检测的载波侦听多址访问(CSMA/CD)的访问方法和物理层规范
Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 3:Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specification