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问答管理员：
待解决问题
为啥IEEE 802.3ae针对SR/LR等定义使用距离范围都是大于2m
离问题结束还有0天0小时 |
提问者：SuperheroYR
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提问时间：2019-7-8 17:27
协议原文：
The operating ranges for 10GBASE-S are defined in Table 52–6. A 10GBASE-S compliant PMD supports
multimode fiber media types listed in Table 52–6 according to the specifications defined in 52.14. A PMD
that exceeds the operational range requirement while meeting all other optical specifications is considered
compliant (e.g., a 400 MHz km 50 μm solution operating at 80 m meets the operating range requirement of
2 to 66 m).
The operating range for 10GBASE-L PMDs is defined in Table 52–11. A 10GBASE-L compliant PMD
supports Types B1.1 and B1.3 single mode fibers according to the specifications defined in 52.14. A PMD
which exceeds the operational range requirement while meeting all other optical specifications is considered
compliant (e.g., operating at 12.5 km meets the minimum range requirement of 2 m to 10 km).
The operating ranges for 10GBASE-S are defined in Table 52–6. A 10GBASE-S compliant PMD supports
multimode fiber media types listed in Table 52–6 according to the specifications defined in 52.14. A PMD
that exceeds the operational range requirement while meeting all other optical specifications is considered
compliant (e.g., a 400 MHz km 50 μm solution operating at 80 m meets the operating range requirement of
2 to 66 m).
The operating range for 10GBASE-L PMDs is defined in Table 52–11. A 10GBASE-L compliant PMD
supports Types B1.1 and B1.3 single mode fibers according to the specifications defined in 52.14. A PMD
which exceeds the operational range requirement while meeting all other optical specifications is considered
compliant (e.g., operating at 12.5 km meets the minimum range requirement of 2 m to 10 km).
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