Patent ID: 8835765

Claim:
A cable, comprising: a first twisted pair of insulated conductors, said first twisted pair having a first lay length and a first insulation made from flame resistant olefin resulting in a first signal propagation rate; a second twisted pair of insulated conductors, said second twisted pair having a second lay length and a second insulation made from a fluoropolymer resulting in a second signal propagation rate wherein said second signal propagation rate is faster than said first signal propagation rate, wherein titanium dioxide is included in the insulation of the conductors of said second twisted pair so that the dielectric constant of the insulation of the conductors of said second twisted pair is raised; wherein there is a skew between signals travelling through said first twisted pair and said second twisted pair, and wherein said inclusion of said titanium dioxide in said insulation of the conductors of said second twisted pair results in said skew being lower than a skew that would result between said first twisted pair and a second twisted pair of the same said second lay length and said second insulation that does not have titanium dioxide; and at least one jacket covering said pairs.