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公开(公告)号:US07655866B2
公开(公告)日:2010-02-02
申请号:US12039174
申请日:2008-02-28
申请人: Masud Bolouri-Saransar , Michael V. Doorhy , David R. Hawkins , Asef Nimmer Badar , Thomas Gerard McLaughlin
发明人: Masud Bolouri-Saransar , Michael V. Doorhy , David R. Hawkins , Asef Nimmer Badar , Thomas Gerard McLaughlin
IPC分类号: H01B9/00
CPC分类号: H01B11/04 , H01B13/04 , Y10T29/49117
摘要: Communication cables are provided in which a core lay length of the cable varies along the cable length. The cable may be provided with different segments that have different core lay lengths. It is desirable for neighboring core lay lengths in a cable to differ by a factor of two, to enable a reduction in power-sum alien near-end crosstalk (PSANEXT) when two cables are installed alongside one another. Segments of the cable having different core lay lengths may be spaced periodically along the length of the cable, and the periodicity of the spacing may be altered by a jitter distance. The introduction of jitter into the periodicity of the spacing of the segments increases the likelihood that a beneficial placement of core lay lengths will occur when two or more cables are installed alongside one another.
摘要翻译: 提供通信电缆,其中电缆的芯绞距沿电缆长度变化。 电缆可以设置有具有不同芯长度的不同段。 希望电缆中的相邻芯线长度相差两倍,以便当两根电缆彼此并排安装时,能够减少功率和外来近端串扰(PSANEXT)。 具有不同芯线长度的电缆的分段可以沿着电缆的长度周期性地间隔开,并且间隔的周期可以改变抖动距离。 将抖动引入段的间隔的周期性增加了当两条或多条电缆彼此并排安装时将发生芯绞距的有益放置的可能性。