如何识别万兆光模块 光模块的多模和单模怎么区分
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千兆，万兆是指速率，千兆是1.25G万兆是10G。而且在封装上也不太一样。千兆常用SFP和SFF封装，而万兆常用XFP和SFP+封装。替用在成本上差距还是比较大的，钱多也不要这么花吧。
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