Trunk optical fibre protection inverting device and method for EPON system

An optical fiber protection and trunking technology, applied in transmission systems, electromagnetic wave transmission systems, electrical components, etc., can solve problems such as no actual technical solutions are given, not found, etc., to enhance the automatic recovery function of trunk optical path failures, improve reliability, The effect of low construction complexity

Inactive Publication Date: 2007-03-07
NEW H3C TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] EPON industry standards, such as my country's EPON national standard draft "Access Network Technical Requirements - Ethernet-Based Passive Optical Network (EPON)", proposes two ways to protect the EPON system, backbone optical fiber protection switching and full optical fiber Protection switching; but no actual technical solutions for the two protection methods
Moreover, so far, no technical description about the implementation of these two protection methods has been found at home and abroad.

Method used

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  • Trunk optical fibre protection inverting device and method for EPON system
  • Trunk optical fibre protection inverting device and method for EPON system
  • Trunk optical fibre protection inverting device and method for EPON system

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Embodiment Construction

[0045] As mentioned above, the technical solution provided by the present invention realizes the main optical fiber protection switching function of the EPON system. In this technical solution, the organizational structure of the main optical fiber protection switching device and the main optical fiber protection switching method will be introduced in detail below in conjunction with the accompanying drawings step process.

[0046] Firstly, compare Fig. 2 and Fig. 3 to visually understand the problems to be solved by the technical solution of the present invention. Wherein, FIG. 2 is a schematic diagram of EPON system backbone optical fiber protection proposed by industry standards, and FIG. 3 is a schematic diagram of EPON system backbone optical fiber protection using the backbone optical fiber protection switching device of the present invention.

[0047] As shown in Figure 2, in the backbone optical fiber protection mode suggested by this industry standard: the optical lin...

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Abstract

This invention relates to main fiber protection inversion device in EPON system, which comprises the following parts: exchanger connected with upper device in EPON system fiber path to transfer communication data; controller connected to light path. The invention relates to one protection inversion method applied in above device, which comprises the following steps: initial setting said main path prepare relationship; testing whether the main path terminal is broken and if yes then reverting main prepare relationship for effective protection.

Description

technical field [0001] The present invention relates to an EPON (Ethernet over Passive Optical Network) system, in particular to the protection of the EPON system; more specifically, the present invention relates to a trunk optical fiber protection switching device and method of the EPON system. Background technique [0002] In recent years, with the development of IP technology, a large number of access technologies based on Ethernet technology have been produced, and Ethernet Passive Optical Network (EPON) is one of them. EPON was proposed by the first mile Ethernet EFM (Ethernet for the First Mile) working group organized by IEEE. It is one of the latest passive optical network PON (Passive Optical Network) technologies; With a point-to-multipoint network structure and passive optical fiber transmission mode, it can provide a variety of services on Ethernet, and has the advantages of large bandwidth, long transmission distance, no electromagnetic interference, high securi...

Claims

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Application Information

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IPC IPC(8): H04B10/12H04B1/74H04B10/08H04B10/032
Inventor 廖双龙
Owner NEW H3C TECH CO LTD
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