Method and Optical Line Terminal for Optical Fiber Fault Diagnosis in Passive Optical Network

摘要

A method for performing optical fiber fault diagnosis in a passive optical network is disclosed in the present invention. The method includes: after receiving an optical fiber fault diagnosis message, a receiving module of an optical line terminal triggering a test module (S10); after triggered by the receiving module, the test module performing an optical time domain reflection test, and obtaining data information (S20) of the test; and a fault diagnosis module analyzing the data information, and performing optical fiber fault diagnosis (S30). An optical line terminal is also disclosed in the present invention, including a control module and an optical module, and the control module includes a receiving module and a fault diagnosis module, and the optical module includes a test module. In the present invention, the process of optical fiber fault diagnosis is performed in combination with PON network management system.