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Method and device for raising protection stability of multi-section when clock plate switchover

A multiplexing section protection and clock board technology, which is applied in the field of optical transmission, can solve problems such as low reliability, high failure rate, and inability to pull out the clock board for smooth switching, so as to achieve improved protection stability, improved stability, and improved low cost effect

Inactive Publication Date: 2008-03-12
NANJING BRANCH OF SHENZZHEN ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the methods involving switching boards, there is a method of switching the clock board through a mechanical linkage device. The mechanical device performs clock switching through the micro switch before the clock board is out of the slot when the wrench on the single board is activated. The failure rate of similar linkage devices is relatively high, and the reliability of long-term use is not strong
At present, the existing technology is still unable to solve the problem of smooth switching of the clock board.
In addition, there is no disclosure of related technologies on how to improve the stability of multiplex section protection switching in the case of clock board switching

Method used

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  • Method and device for raising protection stability of multi-section when clock plate switchover

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Embodiment Construction

[0022] In order to have a further understanding and understanding of the features, objectives and functions of the present invention, now with the accompanying drawings, the detailed description is as follows:

[0023] As shown in FIG. 1 , the hardware structure of the present invention includes an optical board 10 , clock boards 11 and 12 , a crossover board (APS processing module) 13 , a system bus 14 , a subrack, a backplane, and the like. The backplane is fixed on the subrack, and each board is inserted into the corresponding slot on the backplane. The optical board 10, the clock board 11, 12, the cross board (APS processing module) 13 and other boards communicate with each other through the system bus 14 of the backplane. connect.

[0024] Since the clock boards (clock boards 11 and 12 ) are protected by master and backup, the current master clock board 11 provides clocks to the system bus 14 , the cross-connect board 13 , the optical board 10 , and the like. If the curr...

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Abstract

This invention discloses a method and a device for increasing the protection stability of a multiplex section when switching clock boards suitable for synchronous digital communication devices including an optical board, primary and standby clock boards and a cross board with an automatic protection switch protocol module of a multiplex section, in which, the method includes: in the protection of the multiplex section, the optical board picks up the spending bytes relating to the protection of the section on the optical path, the cross board carries out multi-frame check to the received spending bytes and the section alarm and filters the error codes of the bytes and the alarm based on the operating state of the clock board.

Description

technical field [0001] The invention relates to the field of optical transmission, and in particular, to a method and a device for improving the protection stability of the multiplex section during clock board switching. Background technique [0002] The stability of the multiplex section protection is very important for SDH (Synchronos Digital Hierarchy) equipment. SDH equipment is widely used in the backbone transmission network. If the multiplex section protection is unstable, it will cause transmission service interruption and cause huge losses. of. At present, various transmission equipment manufacturers have studied many methods in improving the stability of multiplex section protection, and formed some patented technologies. The invention proposes a method for improving the protection stability of the multiplex section when the clock board is switched. [0003] Most SDH devices provide backup protection for important boards, such as clock boards and cross-connect bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/06
Inventor 余正华
Owner NANJING BRANCH OF SHENZZHEN ZTE CORP