Interconnection and control of alien cross-talk test signal units

一种测试信号、测量单元的技术，应用在变速箱控制/平衡、线路传输监控/测试、电气元件等方向，能够解决不准确、复杂性和功耗测量等问题，达到节省成本的效果

Inactive Publication Date: 2007-02-28
AGILENT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is its complexity and power consumption and the inaccuracy of the measurement

Method used

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  • Interconnection and control of alien cross-talk test signal units
  • Interconnection and control of alien cross-talk test signal units
  • Interconnection and control of alien cross-talk test signal units

Examples

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Embodiment Construction

[0050]FIG. 1 shows an alien crosstalk test system 40 of the present invention, which uses a pair of alien crosstalk measurement units 50 and N pairs of alien crosstalk test signal units 60 , where N≧1. In general, the crosstalk measurement unit 50 is structurally configured to be connected to opposite ends of the victim cable 30 having M wire pairs, and each pair of alien crosstalk test signal units 60 is structurally configured to be connected to the opposite end of the victim cable 30 having M wire pairs. The opposite end of the interference cable 31, where M≥1. Each pair of crosstalk generators 60 is further structurally configured to generate an alien crosstalk test signal at one end of the connected disturbance cable 31 and terminate the alien crosstalk test signal at the other end of the disturbance cable 31 . The crosstalk measurement unit 50 is further structurally configured to measure the alien crosstalk signal at one end of the victim cable 30 and terminate the alie...

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Abstract

An alien cross-talk method involves a victim cable and one or more disturber cables. The method encompasses a transmission of a RF test signal on each disturber cable between an alien cross-talk test signal unit connected to one end of a disturber cable and another alien cross-talk test signal unit connected to the other end of the disturber cable. The method further involves a measurement of an alien cross-talk signal generated on the victim cable in response to each cross-talk coupling of the victim cable and the disturber cable(s) based on the transmission of the RF test signal(s) on the disturber cable(s). The RF test signal(s) can be in the form of a RF frequency sweep and the measurement of the alien cross-talk signal can involve an execution of a RF frequency measurement sweep for acquiring samples of the alien cross-talk signal generated on the victim cable.

Description

technical field [0001] The present invention relates to the interconnection and control of alien cross-talk test signal units. Background technique [0002] Alien crosstalk between cables reduces the operating bandwidth of the cable channel because the overall signal-to-noise ratio decreases due to increased crosstalk noise levels. Therefore, with the recent deployment of high-speed networks, the measurement of alien crosstalk has become an important issue. [0003] Power and (powersum) alien crosstalk measurements typically involve testing a "victim" cable with four (4) wire pairs with n "disturber" cables, each "disturber" The cable has four (4) wire pairs. One specific approach is to use only the "disturbing" wire each time, while measuring Power and Alien Near-End Crosstalk ("PSANEXT") and Power and Alien Far-End Crosstalk ("PSAFEXT") separately for each wire pair one of the cables to test the "victim" cable. The disadvantage of this method is that it is extremely ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/46H04B3/04
CPCH04B3/464H04B3/487
Inventor 哈什昂·潘迪瓦祝幸
Owner AGILENT TECH INC
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