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PON backbone line protection device and method

A line protection and backbone technology, which can be used in the field of PON backbone line protection devices, and can solve problems such as service interruption

Inactive Publication Date: 2015-02-25
SHANGHAI SINO TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the rate of PON implementation is getting faster and faster, the failure of any node in the PON system will cause a large area of ​​service interruption, which is unacceptable for users with high reliability requirements

Method used

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  • PON backbone line protection device and method
  • PON backbone line protection device and method
  • PON backbone line protection device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0047] The PON backbone line protection device in this embodiment includes: a PON protection central office device 1 and a PON protection splitter 2 . Wherein, the PON protection central office equipment 1 is connected with the OLT equipment 3, and is used for monitoring the status of the main line and the backup line, and controlling the selection of the main line or the backup line. The PON protection splitter 2 is respectively connected with the PON protection central office equipment 1 and the ONU equipment 4, so as to realize the equal distribution of the N channels of the PON downlink signal and the equal distribution of the main and backup channels of the uplink signal.

[0048]In the PON backbone line protection device of this embodiment, the PON protection office equipment 1 includes: an optical switch 11, a filter 12 connected to the optical switch 11, a circulator 13 connected to the filter 12, and a laser 14 connected to the circulator 13 and detector 15. Wherein,...

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Abstract

The invention discloses a PON backbone line protection device which comprises a PON protection local side device and a PON protection shunt. The PON protection local side device is connected with an OLT device and used for monitoring the state of a main line and the state of a spare line and controlling selection of the main line or the spare line; the PON protection shunt is connected with the PON protection local side device and ONU devices and used for equally dividing PON signals; the PON protection local side device comprises an optical switch, a filter connected with the optical switch, a circulator connected with the filter, a laser device and a detector, and the laser device and detector are connected with the circulator; the PON protection shunt is provided with a reflection membrane used for reflecting monitoring light. Automatic switchover protection of the main line and the spare line of a PON line is achieved through the PON backbone line protection device; when a main optical fiber is disconnected because of a fault, the PON protection local side device can be automatically switched to the spare line, and it is guaranteed that the PON line can normally work.

Description

technical field [0001] The invention belongs to the technical design field of electrical communication, and in particular relates to a protection device and a protection method applicable to PON backbone lines. Background technique [0002] With the implementation of fiber-in and copper-out and the construction of FTTX networks, more and more telecom services are carried by PON networks. As the rate of PON implementation is getting faster and faster, failure of any node in the PON system will cause a large area of ​​service interruption, which is unacceptable for users with high reliability requirements. Therefore, it is particularly important to protect the PON network to achieve stable bearer capacity of the PON network. How to protect the PON network more effectively is an important issue facing the construction of EPON and GPON networks in the future. Now in the market, there is an urgent need for a low-cost, high-reliability PON backbone line protection device and prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/038H04Q11/00
Inventor 方权揭德锋寇强肖鸿李琳谢虎
Owner SHANGHAI SINO TELECOM TECH
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