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Standby system for digital user line multi-task accepting device

A digital subscriber line, multi-tasking technology, applied in data exchange details, data exchange through path configuration, telephone communication, etc., can solve problems such as DSLAM shutdown, line card circuit volume, component cost and connection line cost increase, etc.

Inactive Publication Date: 2009-06-03
ZYXEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since two sets of control card connection ports 31 must be set on each line card 30, the circuit size, component cost and connection line cost of the line card will increase, and only one set of redundant control cards 20 can be provided. , if the two sets of control cards 20 all fail, the DSLAM will shut down accordingly

Method used

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  • Standby system for digital user line multi-task accepting device
  • Standby system for digital user line multi-task accepting device
  • Standby system for digital user line multi-task accepting device

Examples

Experimental program
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Embodiment Construction

[0029] The line card mentioned in the embodiment of the present invention can be ADSL or various digital subscriber lines (hereinafter referred to as xDSL), such as symmetrical high-speed digital subscriber line (SHDSL), very high-speed subscriber line (VDSL) and so on.

[0030] Please refer to FIG. 2 , which is a schematic diagram of the wiring structure of the backup system of the present invention, and FIG. 3 is a schematic block diagram of the circuit of the backup system of the present invention. The present invention is mainly used in a digital subscriber line access multiplexer (Digital Subscriber Line Access Multiplexer, DSLAM) 100, and the DSLAM is used to multitask access to a plurality of remote data devices (xTU-R) 200 connection to a network 300, such as the Internet, and the remote data unit 200 (xTU-R) can be an xDSL modem or router.

[0031] As shown in Figure 3, a data bus 110, a plurality of groups of control cards 120 and a plurality of line cards 130 are ar...

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Abstract

The system consists of complex number controlling cards and complex number Y shape interconnections. Complex number line card ports and a network connection port are set on the controlling cards. Complex number line card connection port and a controlling card connection ports are set on line card. The Y shape interconnection is used to connect same line with one of controlling card connection port and each connection port of line card, and detects the working states of the Y shape interconnection through the detecting device of the controlling card to make one of the controlling cards as active state and the others as standby state.

Description

technical field [0001] The present invention relates to a backup system for digital subscriber line multitasking access equipment, in particular to a backup system for digital subscriber line multitasking access equipment (Digital Subscriber Line Access Multiplexer, hereinafter referred to as DSLAM) erected in a network computer room . Background technique [0002] Press, Asymmetric Digital Subscriber Line (hereinafter referred to as ADSL) is a technology that uses ordinary telephone lines to provide broadband access. In recent years, due to reasonable prices, ADSL has gradually replaced traditional dial-up Internet access and dedicated Internet lines, and there are more and more Many business users and personal applications. [0003] Generally, the basic configuration of ADSL is that a data device ATU-R (ADSL Modem / Router) at the client end is connected to an ATU-C (Digital Subscriber Line Access Equipment) at the end of the computer room. However, this will cause a seriou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L12/02H04M11/06
CPCY02B60/36Y02D30/50
Inventor 李炳钦袁南平孙嘉鸿
Owner ZYXEL