下列测试指标中，属于光纤指标的是（ ），仪器（ ）可在光纤的一端测得光纤的损耗。
问题1选项
A.波长窗口参数
B.线对间传播时延差
C.回波损耗
D.近端串扰
问题2选项
A.光功率计
B.稳定光源
C.电磁辐射测试笔
D.光时域反射仪
正确答案及解析
正确答案
解析
答案： A、D
由于在光纤系统的实施过程中，涉及到光纤的镉铺设，光纤的弯曲半径，光纤的熔接、跳线，更由于设计方法及物理布线结构的不同，导致两网络设备间的光纤路径上光信号的传输衰减有很大不同。虽然光纤的种类较多，但光纤及其传输系统的基本测试方法大体相同，所使用的测试仪器也基本相同。对磨接后的光纤或光纤传输系统，必须进行光纤特性测试，使之符合光纤传输通道测试标准。基本的测试内容包括：
●波长窗口参数综合布线系统光纤波长窗口的各项参数，应符合有关规定。
●光纤布线链路的最大衰减限值综合布线系统的光纤布线链路的衰减限值，应符合有关规定。●光回波损耗限值综合布线系统光纤布线链路任一接口的光回波损耗限值，应符合有关规定。
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