OPTICAL TRANSMISSION METHOD AND SYSTEM

摘要

A method and system for two-way optical transmission with the same wavelength between an office transmission circuit and a user terminal transmission circuit through a one-core optical fiber, wherein when an optical fiber disconnection failure occurs, the office transmission circuit locates the corresponding user terminal transmission circuit by detecting the response failure of the user terminal transmission circuit so as to automatically detect the optical fiber disconnection failure without connecting any special measuring instrument, and sends an optical isolated pulse to the user terminal transmission circuit corresponding to the response failure, whereby the failure point is located.