cable news: how to improve the accuracy of optical cable fault location-非凡电子娱乐

with the continuous development of optical fiber and cable market, a large number of fiber optic cable lines are laid and used in the process,

more and more people pay attention to its reliability and security. relevant data show that more than 2/3 of the main reasons for the interruption of optical fiber communication cable line failure.

how to improve the accuracy of optical cable fault location is the key problem to be solved.

first of all, to understand how to use the instrument, master the use of instruments, help to accurately measure.

1, set the parameters of the otdr. when using otdr test, the instrument parameters must be set first, and the most important thing is to set the refractive index and the test wavelength of the optical fiber.

only by setting up the basic parameters of the test instrument can we create the conditions for the accurate test.

2, the use of instrumentation amplifier. the application of otdr amplification function can be set in the light is corresponding to the turning point, using the zoom function key graphics can be amplified to 25 mig,

in this way, we can get more accurate results of less than 1 meters.

3, adjust the accuracy of the test range file. the range resolution of the otdr test is different for different test ranges

should be selected larger than the measured distance and the most recent test range file, so as to make full use of the instrument itself to measure accuracy.

secondly, the maintenance and management of the process should be accurate and complete the original documents. the accurate completion of the optical fiber cable is the basis of fault measurement and location.

therefore, the maintenance management process can not be ignored, should establish a true, reliable, complete line data.

when the fiber optic cable is connected, the total length of the optical fiber and the total attenuation value of the fiber of the relay section are recorded,

at the same time, it will also test the instrument model, test the refractive index of the set value for registration. accurate records of various cable remaining. detailed record of each joint pit,

special section, s shaped laying, into the room, such as the length of the fiber optic cable and the junction box, terminal box, odf frame, such as the length of the fiber optic disc, in order to reduce the length of the conversion point of the route to be deducted.

in addition, the consistency of test conditions should be maintained during the measurement. obstacle test should try to ensure the consistency of the test instrument type, operation method and instrument parameters,

such test results are comparable. therefore, each test instrument model, test parameters are set to do a detailed record, in order to facilitate future use.

finally, a comprehensive analysis. the operator obstacle testing requirements must have clear ideas and methods to deal with the problem of flexible, clear and logical thinking no matter where you are very popular.

under normal circumstances, the two ends of the fiber optic cable line is a two-way fault test, and then combined with the original data analysis, and then ready to determine the specific location of the fault.

when the link around the fault point is not obvious, the specific site can not be determined, then we can take the nearest joint measurement method,

can be excavated at the initial test of the barrier, the end of the test instrument in real-time measurement.

in optical fiber communication, if the optical fiber is interrupted, we first consider the fault of the cable and take some measures to locate it.

external such as: optical fiber break, power outages, and then test the transmission equipment.

therefore, how to improve the accuracy of optical cable fault location is helpful to determine the fault point accurately.