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Networking device with different relay protection doubling backups

A technology of relay protection and duplication, applied in the direction of emergency protection circuit devices, circuit devices, electrical components, etc., can solve the problems of line loss protection, inability to apply optical fiber differential protection, inconsistent receiving and sending paths, etc., to achieve reliable Improved performance, low cost, and low retrofit cost

Inactive Publication Date: 2013-09-04
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the optical transmission network has formed a ring or mesh structure, due to the SDH's own protection mechanism, ring network protection switching and channel protection switching may cause inconsistencies in receiving and sending paths under certain circumstances, and cannot be applied to Optical Fiber Differential Protection
The protection channel of the optical multiplexing mode usually adopts the direct optical cable route, so the risk of the line losing protection due to the interruption of the optical cable still exists objectively

Method used

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  • Networking device with different relay protection doubling backups

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Embodiment Construction

[0017] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0018] refer to figure 1 , relay protection dual backup different networking devices, including an A-side protection device 11, a B-side protection device 12, also includes a A-side SDH channel device 31, a B-side SDH channel device 32, A-side SDH channel The equipment 31 is connected to the B-end SDH channel equipment 32 through an SDH digital multiplexing channel, the A-end protection equipment 11 is connected to the A-end SDH channel equipment 31 by connecting a A-end channel switching device 21, and the B-end protection equipment 12 is connected to a B-end channel The switching device 22 is connected to the B-end SDH channel equipment 32 .

[0019] The A-end channel switching device 21 is directly connected to the B-end channel switching device ...

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Abstract

The invention relates to the technical field of electric power communication, in particular to a networking device. A networking device with different relay protection doubling backups comprises end A protecting equipment, end B protecting equipment, end A SDH (synchronous digital hierarchy) channel equipment and B end SDH channel equipment, wherein the end A SDH channel equipment and the end B SDH channel equipment are connected through an SDH digital multiplexing channel, the end A protecting equipment is connected with the end A SDH channel equipment through connecting an end A channel switching device, and the end B protecting equipment is connected with the end B SDH channel equipment through connecting an end B channel switching device. The networking device has the advantages that the transformation cost is low, the application range is wide, the on-site construction is also simpler, and the networking device can be widely applied to the double-routing transformation of relay protection channels in various voltage grades.

Description

technical field [0001] The invention relates to the technical field of electric power communication, in particular to a networking device. Background technique [0002] At present, the 500KV protection channel in East China has widely adopted the optical communication method (including the optical fiber dedicated core method and the SDH circuit multiplexing method), but due to the limited conditions of the optical cable, most of the optical fiber differential protection is actually still carried on the same optical cable. Although the optical transmission network has formed a ring or mesh structure, due to the SDH's own protection mechanism, ring network protection switching and channel protection switching may cause inconsistencies in receiving and sending paths under certain circumstances, and cannot be applied to Optical fiber differential protection. The protection channel of the optical multiplexing mode usually adopts the direct optical cable route, so the risk of the...

Claims

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Application Information

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IPC IPC(8): H02J13/00H02H7/26
Inventor 周德生曾平邹晓峰朱奕帆
Owner STATE GRID CORP OF CHINA