摘要
光缆用于传输信息的优势已远远大于铜缆,其缺点是容易断裂,故障点不易查找,不易修复。本文探讨如何识别各种类型光缆,如何判断光缆通断及故障点。
The advantages of information transmission by optical cable far outweigh those by copper one. However, the optical cable has inherent drawbacks such as easy to break, hard to find fault points and repair. The paper is mainly about how to distinguish various optical cables, to judge the condition of optical cables and to look for fault points.
关键词
光纤
光功率损耗
光时域反射仪
光笔
optical cable
optical power penalty
optical time domain reflectometer, light pen