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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 19897.3-2005 |
Automatic Meter Reading System Lower Layer Communication Protocol Part 3:Physical layer services and procedures for connection oriented asynchronous data exchange 自动抄表系统低层通信协议 第3部分：面向连接的异步数据交换的物理层服务进程 |
China National Standards 3:Physical |
 English PDF |
| GB/T 16678.3-1996 |
Information processing systems--Fibre distributed data interface (FDDI)--Part 3:Physical layer medium dependent(PMD) 信息处理系统 光纤分布式数据接口(FDDI) 第3部分:令牌环物理层媒体相关部分(PMD) |
China National Standards 3:Physical |
English PDF |
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