Communications cables with oppositely twinned and bunched...

Details Communications cables with oppositely twinned and bunched... Communications cables with oppositely twinned and bunched...

H - Electricity

01

B

H01B 11/04 (2006.01) H01B 11/00 (2006.01) H01B 13/00 (2006.01)

Patent

CA 2418421

A communications cable comprises an elongate cable jacket having an internal cavity and a plurality of twisted pairs of insulated conductors disposed in the internal cavity of the cable jacket, each of the conductors being insulated with a polymeric layer. Each of the insulated conductors within each of the twisted pairs of conductors defines a twinning helix having a first rotative direction, and each of the twisted pairs defines a bunching helix having a second rotative direction, the second rotative direction being opposite that of the first rotative direction. In this configuration, the communications cable can provide acceptable crosstalk and attenuation performance, even with foamed insulators that have demonstrated unacceptable performance when twinned and bunched in the same rotative direction.

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