Study on interferences from faulty ONU in PON networks

Yu Jinhui; Yu Chendong

doi:10.13756/j.gtxyj.2015.04.007

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Study on interferences from faulty ONU in PON networks

- Study on interferences from faulty ONU in PON networks
- Study on Optical communication Issue 4, Pages: 19-21(2015)
- 作者机构：
  
  中兴通讯有线规划系统部
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2015.04.007
  CLC： TN929.1
- Published：2015，
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[1]于金辉,余辰东.无源光网络中的ONU干扰问题研究[J].光通信研究,2015(04):19-21.

Yu Jinhui, Yu Chendong. Study on interferences from faulty ONU in PON networks. [J]. (4):19-21(2015)
[1]于金辉,余辰东.无源光网络中的ONU干扰问题研究[J].光通信研究,2015(04):19-21. DOI： 10.13756/j.gtxyj.2015.04.007.

Yu Jinhui, Yu Chendong. Study on interferences from faulty ONU in PON networks. [J]. (4):19-21(2015) DOI： 10.13756/j.gtxyj.2015.04.007.

摘要

来自于故障ONU（光网络单元）的异常上行光信号干扰是PON（无源光网络）中常见且难以彻底避免的问题

严重威胁着PON的稳定运行。文章针对ONU干扰问题

描述了ONU干扰的几种现象与可能原因

总结了典型的长发光告警检测方法

对故障ONU的定位方法进行探讨并对比了几种方法的优缺点

给出了一种在ONU侧对干扰问题进行异常防护的机制。

Abstract

Interference arising from abnormal uplink optical signals in faulty ONU is a common and hardly entirely avoidable problem in PON networks

which seriously threatens the steady network operation.This paper describes several behaviors of the interferences and their possible causes

and summarizes two typical long-shining alarm detection methods

discusses the location of the faulty ONU

compares their advantages and disadvantages and gives a mechanism for abnormal protection against the interferences at the ONU side.

关键词

无源光网络光网络单元干扰长发光

Keywords

PONONUinterferencelong-shining

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Shanghai R&D Center,ZTE Corporation

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