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G.703的接口叫做E1,顾名思义,就是接口的名称,区别于RJ45以太网的。
2M口是对于这个端口速率的一种称呼,区别于百兆以太网口。
现在一般都表达差不多的意思了,提到都会理解一样意思的。
2M口是对于这个端口速率的一种称呼,区别于百兆以太网口。
现在一般都表达差不多的意思了,提到都会理解一样意思的。
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回答时间:2011-11-18 15:12
其他答案 ( 4 条 )
2M设备上有G.703,V35,RJ45等各种接口
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118.250.10.* | 2012-3-2 12:14
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G703接口包括2M和64K的,E1和2M没啥区别。
2M是相对于64K等速率角度的描述。
标准中相关描述为:
Amendments of clauses 4, 9, 10, 11 with the inclusion of output return loss requirements for the 64 kbit/s (codirectional), 2048, 8448, 34 368 kbit/s interfaces.
E1是相对于E0等名称角度的描述,也直接可以对应到速率。
标准中相关描述为:
标准中相关描述为:
Amendments of clauses 4, 9, 10, 11 with the inclusion of output return loss requirements for the 64 kbit/s (codirectional), 2048, 8448, 34 368 kbit/s interfaces.
E1是相对于E0等名称角度的描述,也直接可以对应到速率。
标准中相关描述为:
– Insertion of names of hierarchical interfaces (E0, E11, E21 etc.) into the headings of the corresponding clauses. |
2M是通俗叫法,E1的速率是2.048M,
因为另外一个标准T1速率是1.5M,
因为另外一个标准T1速率是1.5M,