Abstract: A multi-pair cable including four twisted pairs of insulated conductors each having a respective unique twist lay length, thereby providing six twist deltas between the twist lay lengths of the four twisted pairs, wherein at least five of the six twist deltas are greater than 15%.

Abstract: An improved twisted pair telecommunications cable according to the invention includes a plurality of twisted pairs of insulated conductors, and a substantially flat configurable pair separator disposed between the plurality of twisted pairs of insulated conductors along a longitudinal length of the telecommunications cable. The twisted pair communications cable also includes a jacket assembly enclosing the plurality of twisted pairs of insulated conductors and the substantially flat pair separator. The substantially flat pair separator separates each twisted pair of insulated conductors from every other twisted pair of insulated conductors with a spacing sufficient to provide a desired crosstalk isolation between each of the plurality of twisted pairs of insulated conductors.

Abstract: A twisted pair cable wherein characteristics of the twisted pairs, such as twist lay, insulation thickness, characteristic impedance, etc. are selected so as to achieve minimal skew between the twisted pairs. In some examples, insulation materials may be varied among the twisted pairs and composite insulations may be used for one or more pairs in a cable.

Abstract: A multi-pair cable including four twisted pairs of insulated conductors each having a respective unique twist lay length, thereby providing six twist deltas between the twist lay lengths of the four twisted pairs, wherein at least five of the six twist deltas are greater than 15%. Alternatively, a multi-pair cable including a first twisted pair of conductors having a first twist lay length, and a second twisted pair of conductors having a second twist lay length that is shorter than the first twist lay length, wherein the first and second twisted pairs of conductors are in physical contact with one another along substantially an entire length of the multi-pair cable, and wherein a difference between the first twist lay length and the second twist lay length is at least 15% of the second twist lay length.

Abstract: An improved data telecommunications cable according to the invention includes a plurality of twisted pairs of insulated conductors, and a substantially flat configurable dielectric separator disposed between the plurality of twisted pairs of insulated conductors along a longitudinal length of the telecommunications cable. The data communications cable also includes a jacket assembly enclosing the plurality of twisted pairs of insulated conductors and the substantially flat dielectric pair separator. The substantially flat dielectric pair separator separates each twisted pair of insulated conductors from every other twisted pair of insulated conductors with a spacing sufficient to provide a desired crosstalk isolation between each of the plurality of twisted pairs of insulated conductors.

Abstract: A high performance data cable comprises first and second insulated conductors, each disposed in a respective first layer of insulation and a second layer of insulation covering the first and second insulated conductors and maintaining the first and second insulated conductors to one another. The first and second insulated conductors and the second layer of insulation are twisted about a common central axis to form a twisted pair unit.

Abstract: Cables including a plurality of twisted pairs of insulated conductors and a jacket surrounding the plurality of twisted pairs of insulated conductors, the jacket including a plurality of protrusions extending away from an inner circumferential surface of the jacket toward a center of the cable. The plurality of protrusions are configured so as to hold the plurality of twisted pairs away from the inner circumferential surface of the jacket, and may provide an air gap between the plurality of twisted pairs of insulated conductors and the inner circumferential surface of the jacket, thereby reducing susceptibility of the plurality of twisted pairs to alien near end crosstalk.