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At present, operators generally use more single-core optical cables, and ribbon optical cables(ribbon fiber cable) are generally used in urban core re…
Optical fiber is a communication cable composed of two or more glass or plastic optical fiber cores. These optical fiber cores are located in a protec…
1. 光纤的通频带很宽.理论可达30亿兆赫兹. 2. 无中继段长.几十到100多公里,铜线只有几百米. 3. 不受电磁场和电磁辐射的影响. 4. 重量轻,体积小.例如:通2万1…