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Full optical fibre protecting device and method

A protection device and all-fiber technology, which is applied in the field of network communication, can solve problems such as no clear definition, achieve the effect of reducing repair time, improving reliability, and increasing automatic fault recovery function

Inactive Publication Date: 2007-02-28
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This connection method aims to eliminate the hidden danger of single point failure in the EPON system, but it does not clearly define how the actual technical solution of this protection method is implemented in the figure
Moreover, at present, there is no practical and feasible implementation scheme proposed by referring to the connection method of this all-fiber protection scheme in the industry

Method used

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  • Full optical fibre protecting device and method
  • Full optical fibre protecting device and method
  • Full optical fibre protecting device and method

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Embodiment Construction

[0036]Please refer to Figure 3, Figure 3 is a schematic diagram of the hardware structure of the all-fiber protection solution; as shown in the figure, the EPON system consists of an optical line terminal including two optical line terminal ports (OLT#1, OLT#2), two optical and a plurality of optical network units (ONU#1, ONU#2, ONU#3, ...ONU#n), wherein: each optical network unit (ONU#1, ONU#2, ONU#3, ...ONU# n) Through two passive optical network ports (PON#1, PON#2) respectively connected to two optical splitters with a split ratio of 1:n, each optical splitter is connected to the two optical line terminals Optical line terminal ports (OLT#1, OLT#2). The difference from Figure 2 is that the two passive optical network ports (PON#1, PON#2) of each optical network unit (ONU#1, ONU#2, ONU#3, ...ONU#n) are connected to the user An all-fiber protection device is plugged between the network ports; the all-fiber protection device is used to send the data received by the two passi...

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Abstract

The invention relates to a full-fiber protector and relative method, used in Ethernet inactive optical network (EPON). Wherein, said system comprises light terminal, two splitters and several optical network units (ONU); each ONU via two inactive optical network ports (PON) is connected to two splitters; each splitter is connected to two light terminal ports of said light terminal; the full-fiber protector is plugged between two inactive light optical network ports and the user network port of ONU, to send the data received by two inactive light network ports selectively to relative user network port. The invention uses STP / RSTP / MSTP to switch the backup of dual-PON port, and exchanges chip to separate the user network port and inactive optical network port, to improve the light path reliability of ONU in EPON system with low cost.

Description

technical field [0001] The present invention relates to Ethernet passive optical network (Ethernet over Passive Optical Network is called for short EPON) system, relate in particular to the protection of EPON system; communication technology field. Background technique [0002] With the popularization of the Internet and the development of broadband applications, especially the continuous emergence of some "bandwidth killer" applications, the bandwidth resources of the access network are increasingly "stretched". In order to completely solve the bandwidth bottleneck of the access network, fiber-to-the-home (FTTH) Fiber To The house (FTTH for short), as the ultimate ideal of access network development, already has the urgent need and possibility to realize it in advance. The Ethernet passive optical network system is based on the passive optical network technology of Gigabit Ethernet, which inherits the low cost and ease of use of Ethernet, and the high bandwidth of optical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/20H04Q3/00H04B10/032H04B10/25
Inventor 廖双龙
Owner NEW H3C TECH CO LTD
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