Optical fiber communication system for detecting and controlling rascal terminal

Abstract

The invention relates to an optical fiber communication system for detecting and controlling a rascal terminal, which aims at solving the technical problems of detecting an optical network terminal atthe real time and on line and finding out and controlling the rascal terminal so as to prevent the whole system from losing. The technical scheme is achieved as follows: the optical fiber communication system comprises n optical network units with photoelectric conversion modules, an optical line terminal, an optical network unit, a passive optical splitter for carrying information transit and distribution with the optical line terminal, n input branches and an output bus, wherein N is a positive integer more than one, a detecting and controlling circuit which has the function of identifyingthe rascal terminal is additionally arranged in the photoelectric conversion module of any one optical network unit, the detecting and controlling circuit receives electric signals after being converted by a backlight detecting diode inside an optical component and outputs control signals after the electric signals are processed, and then the control signals are transmitted into a control terminal of an door controller. The invention realizes the function of detecting input information in the optical network unit at the real time, and prevents the whole system from being influenced as the door controller cuts off the abnormal branches.

Description

technical field [0001] The present invention relates to the field of optical fiber access communication system, and is applied in the point-to-multipoint networking mode in the passive optical network, especially a kind of optical fiber communication that can detect whether the optical network unit is a rogue terminal and control it is designed. system. Background technique [0002] Today, with the increasing popularity of optical fiber access, a prominent problem is in front of everyone: the passive optical network adopts a point-to-multipoint networking method, that is, one optical line terminal (OLT) drags dozens or even Hundreds of optical network units (ONU), each optical network unit must upload data within the time slot allocated by the optical line terminal, so that when the optical line terminal receives data, there will be no collision of multiple optical network unit data. However, if a certain optical network unit in the network no longer obeys the instructions ...

AI Technical Summary

Problems solved by technology

The existing technology fails to provide equipment for detecting such rogue terminals and cannot perform real-time monitoring and control of each optical network unit. Even if some equipment can detect, the effect is not very satisfactory, and it will still affect the operation of the entire system.

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