摘要:
A twisted-pair cable includes a plurality of twisted pairs of conductors closely side by side arranged one another. The pair of conductors are twisted with some degrees axially offset relative to the adjacent twisted pair of conductors, whereby for each victim conductor, the induced signals can be eliminated within each twisted cycle, so that the crosstalk at the far end of the cable can be reduced.
摘要:
A communication cable is provided that satisfies the requirement of Cat.6 for near-end cross talk wherein the difference between the maximum and minimum values of delay time among the four twisted wire pairs constituting the cable is within 25 ns/100 m. The communication cable is made by entwining four twisted wire pairs (T1), (T2), (T3), (T4) made by twisting pairs of insulated wires made by covering electrically conductive wires by polyolefin thermoplastic resin with each pair being twisted with a twist pitch different from the others (pitch: P1
摘要:
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.
摘要:
The present invention is a method and apparatus of routing a 1 of 4 signal to reduce the effective signal coupling between the signal wires. The present invention is a wire pack with a first, second, third, and fourth wire for routing a 1 of 4 signal in a semiconductor device. While routing the wires of the wire pack, the present invention rotates the route of each individual wire to reduce the signal coupling between the wires. Additionally, an isolation barrier borders the outside of the wire pack to further reduce the signal coupling. The rotation of the wires allow each individual wire to be adjacent to each other wire for ½ of the wire's route.