光缆网络集中监控系统由一整套光纤自动测试系统与光缆网络连接组成，如图１所示，在图中远程终端设备（ＲＴＵ）的个数和位置可根据各局的光缆网络结构综合考虑确定。 光纤自动测试系统利用各个测试头、光开关单元和数据处理中心对被测光纤进行不间断的自动循环扫描或定时测 Optical fiber network centralized monitoring system consists of a set of optical fiber automatic test system and cable network connection, as shown in Figure 1, in the figure the number and location of remote terminal equipment (RTU) can be determined according to the optical network structure of each bureau. Optical fiber automatic test system uses each test head, optical switch unit and data processing center to be tested fiber continuous automatic cycle scanning or timing