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首页> 外文期刊>Wire Journal International >Investigation of Shielding Effectiveness and Differential Alien Crosstalk Correlation in Twisted Pair Cables
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Investigation of Shielding Effectiveness and Differential Alien Crosstalk Correlation in Twisted Pair Cables

机译：双绞线电缆的屏蔽效果和差分外来串扰相关性研究

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摘要

Power sum near-end alien crosstalk in BASE-T cabling is difficult to measure but is an important transmission impairment to characterize for 10G and higher signaling rates. The laboratory measurement process involves the construction of bundles of cables and multiple connections to a test set before the parameter can be fully characterized. This complexity has prompted standards organizations to explore the correlation between alien crosstalk and more easily characterized parameters such as TCL or coupling attenuation. This paper reviews the conclusions of past investigations along with data collected on six prototype cables to support the conclusion that TCL is an unreliable method of establishing PSANEXT performance. The data also shows that coupling attenuation and PSANEXT are correlated. The data is used to establish a continuous function relating coupling attenuation and PSANEXT. This function may be useful as a guideline but the quality of the fit shows that the coupling attenuation/PSANEXT relationship is not deterministic.
机译：BASE-T电缆中的功率总和近端外来串扰很难测量，但却是表征10G和更高信令速率的重要传输障碍。实验室测量过程涉及电缆束的构造以及到测试设备的多个连接，然后才能完全表征参数。这种复杂性促使标准组织探索外来串扰与更容易表征的参数（例如TCL或耦合衰减）之间的相关性。本文回顾了过去研究的结论以及在六种原型电缆上收集的数据，以支持TCL是建立PSANEXT性能的不可靠方法的结论。数据还表明，耦合衰减与PSANEXT相关。该数据用于建立与耦合衰减和PSANEXT相关的连续函数。此功能可能会用作指导，但拟合的质量表明耦合衰减/ PSANEXT关系不确定。

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