Amendment 1 - Information technology -- Telecommunications and information exchange between systems -- Local and metropolitan area networks -- Specific requirements -- Part 5: Token ring access method and physical layer specifications - Dedicated token ring operation and fibre optic media
修改件1.信息技术.系统间电信和信息交换.局域网和城域网.特殊要求.第5部分:令牌环访问方法和物理层规范.专用令牌环操作和光纤介质