In order to improve the quality of communication technology to ensure the smooth flow of fiber optic cable lines, it is necessary to establish the necessary line technical files, organize and train maintenance personnel, develop relevant rules for the maintenance and overhaul of fiber optic cable lines and strictly put them into practice. To do a good job of fiber optic cable line maintenance, the following aspects must be seriously considered: careful organization of technical data, strict development of the rules of fiber optic cable line maintenance, the organization and training of maintenance personnel and conduct regular tests.
1、seriously do a good job of organizing technical information
Fiber optic cable line completion technical information is an important original information provided by the construction unit. It includes cable routing, connector location, the attenuation of each channel fiber, connector attenuation, total attenuation and backscattering curves in both directions. This information is an important basis for future maintenance and repair of the line, should be well preserved and carefully mastered. Some units in order to line each channel connector location, distance: fiber number and its attenuation size at a glance, the completion of the technical data combined, drawn into each fiber channel maintenance schedule, and reference OTDR curve, the data is marked on the chart. In this way, once a fault occurs, it can be marked in Figure 7 to indicate the bit Xia of the fault point, which is conducive to smooth repair.
All technical data should be drawn according to the specifications size, legend, symbols and requirements, and should be reviewed and proofread in detail. When the fiber optic cable line and ancillary equipment changes, routing changes, should be timely correction of the diagram, table and information, and to ensure that the content is accurate. All technical data should be kept by a person. And build a win data pith, storage and borrowing system. Important technical information should pay attention to confidentiality, in principle, not allowed to lend.
2、Strictly formulate the maintenance rules of optical cable lines
According to the duty management and maintenance regulations, maintenance procedures and the specific situation of the fiber optic cable line, should develop practical maintenance rules, and strictly put into practice. Especially for the weak link of the line, joint parts, climate abnormalities (such as high winds, heavy rain, ice and snow, etc.), environmental changes and other special circumstances, are to propose special maintenance measures. For the implementation of major tasks during the communication duty security, maintenance management, must be strictly in accordance with the requirements of the relevant departments, all levels should develop a corresponding implementation plan, and supervise the implementation.
3、Maintenance personnel organization and training
Organization of responsible maintenance personnel team, and do a good job of technical training, so that they understand and master the maintenance and overhaul technology of optical cable lines, understand the basic r work principle of optical cable lines, clear to ensure the smooth flow of communication lines, and maintenance personnel to strengthen management, clear division of labor.
4、Conduct regular measurements
In order to grasp the quality of the optical cable line changes, the attenuation of each fiber channel should be measured regularly, make a record and compare with the as-built records and previous measurements. When the channel attenuation increases significantly, the cause should be found. And study to determine the solution. The periodic measurement of channel attenuation can use a stable and reliable insertion loss measurement method. General quarterly or semi-annual test; where available, it is best to observe the entire backscatter curve of each channel once a year with OTDR, observe and record the changes in the attenuation of each section of the fiber and each fiber connector, and pay attention to the curve with or without a slight Fresnel reflection point and abnormalities.
5、timely maintenance and emergency repair
A fiber optic cable has a large transmission capacity, long-distance trunk line is even more so. Therefore, it is vital to ensure that the fiber optic cable line works stably and reliably for a long time. In the process of daily line maintenance and regular testing, if any abnormalities or hidden problems are found, corresponding measures should be taken to eliminate the hidden problems and achieve timely processing. In particular, when a major fault occurs in the fiber optic cable line, there should be multiple sets of contingency plans for the scheduling of the pathway to be used in different situations. At the same time there should be able to quickly repair the fiber optic cable line research, training and implementation plans to quickly complete the emergency tasks from the alarm to repair.
