本发明通过使用具有光时域反射波长选择模块的光纤故障定位设备，具有了降低光纤故障定位系统投入成本的效果。
The device comprises the following parts: a control module, a modulating module, a sending module and a fiber fault position module. The invention reduces the cost of the fiber fault position system.
诊断和定位设备故障，调整，更换或修理电信设备。
Diagnose and locate equipment faults, and adjust, replace or repair telecommunications equipment.
使用伏米，电流表和其他电子测量仪器和设备，检查和测试已安装电气设备及仪器，定位电气故障和检查其操作。
Inspect and test installed electrical equipment and apparatus to locate electrical faults and check their operation, using volt meters, ammeters and other electrical test instruments and equipment.
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