Fiber fault monitoring method, equipment and system

Abstract

An embodiment of the invention provides a fiber fault monitoring method, equipment and system. The fiber fault monitoring method includes transmitting first test signals from an end A to an end B of an optical fiber to be detected and second test signals from the end B to the end A of the optical fiber to be detected, wherein the end A of the optical fiber to be detected is arranged on a port of an optical fiber distribution frame, and the end B of the optical fiber to be detected is serially connected with the other port of the optical fiber distribution frame through a jump fiber; receiving the first test signals fed back from the end A to the end B of the optical fiber to be detected and the second test signals fed back from the end B to the end A of the optical fiber to be detected respectively; when the optical fiber to be detected has faults, locating the fault points of the optical fiber to be detected according to the feedback first test signals and the feedback second test signals. Accordingly, the purpose to integrate light power monitoring and fault location testing is achieved and cost for monitoring fiber faults is reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, equipment and system for monitoring optical fiber faults. Background technique [0002] The optical cable monitoring system can judge whether the optical cable is running normally by monitoring the optical cable. When abnormal conditions occur, an alarm will be issued and corresponding tests will be carried out to accurately locate the point of failure. [0003] The optical cable monitoring system uses the alarm indication unit (Alarm Indication Unit, AIU) to monitor the power in the optical fiber, so as to monitor the attenuation change of the optical fiber. When the fiber attenuation is greater than a certain threshold, or the received optical power monitoring is less than a certain value, an optical cable fault alarm is generated. When an alarm occurs, the operator controls the Optical Switching Unit (OSU) to connect the OTDR to the backup fiber port to test the s...

AI Technical Summary

Problems solved by technology

Therefore, the optical power monitoring equipment is separated from the fault location test equipment, and the fault location test equipment needs to use OTDR to cooperate with optical switches, the equipment cost is high, and the test time is long

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