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A device and method for the E1/T1 interface backup

An interface and backup technology, applied in the field of communication, can solve problems such as unprovided or unable to provide loopback channels, and achieve the effects of avoiding crashes, improving testability, and improving anti-lightning performance

Active Publication Date: 2009-04-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The problem to be solved by the present invention is to provide a kind of equipment and method for realizing E1 / T1 interface backup, realize the hardware backup of E1 / T1 interface by adopting relay and Y-shaped cable wiring mode, to overcome the lack of main and backup in the prior art The cable connection method between the front board and the external E1 / T1 interface line, and the defect that the spare circuit part cannot provide a loopback channel when it is not in use, thus improving the stability of the system

Method used

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Embodiment Construction

[0042] The present invention divides the E1 / T1 interface into two parts according to the concept of module-to-digital separation, wherein the digital and active parts are integrated on the front panel, and the analog and passive parts are integrated on the rear panel, and the front panel and The rear boards together form an interface board.

[0043] figure 1 is the principle diagram of the present invention, such as figure 1 As shown, the present invention is provided with a main interface board 1 and a backup interface board 2. The circuits and structures of the main and backup interface boards are exactly the same, and the same functions can be completed. Mutual master and backup relationship, that is to say, any one of the two interface boards can be used as the master, and the other can be used as the backup, forming a complete 1:1 backup relationship. Under normal circumstances, the main interface board 1 works, and the backup interface board 2 does not work. When the m...

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Abstract

This invention provides one device and method to realize E1 and T1 interface backup, which can realize same function of the interface signal board and backup board, wherein, the main interface board and backup one front insert board adopts Y type of cable for wire connection with outer E1 or T1 composed of relay; when the main interface board or backup is false or damaged, it selects proper main interface signal board or backup interface single board through relay to realize circuit connection.

Description

technical field [0001] The invention relates to the communication field, in particular to an E1 / T1 interface backup device and method realized by adopting a relay and a Y-shaped cable connection mode. Background technique [0002] E1 (PCM30, nominal rate 2048kbit / s) / T1 (PCM24, nominal rate 1544kbit / s) interface, as an international standard, is a common interface type for network equipment. [0003] An existing relatively old way of cable outlet, the basic design idea is: suitable for front-plug chassis design, the digital and analog parts of the E1 / T1 interface are all integrated on the single board, and the single board itself does not have the interface. The interface is placed on the back panel, and the SMB interface is used for the back panel outlet, which is not used in general new products. [0004] Its disadvantages are: [0005] 1. Unable to get out of the line intensively; [0006] 2. There is no separation of analog and digital parts; [0007] 3. Does not supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/74H04L29/10
CPCH04L1/22
Inventor 方卫峰李振亚项能武张耀文
Owner HUAWEI TECH CO LTD
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