Patent ID: 6333465
Filing Date: 2001-12-25
Classification: H01B

Abstract:
A data transmission cable comprising a unit of at least two sets of twisted conductors, each set of twisted conductors being one of a quad set in which four conductors are twisted together and a pair set in which two conductors are twisted together, and wherein each set of twisted conductors are twisted at a pitch that is different from that of each remaining set of twisted conductors, and wherein each conductor is insulated by a respective insulating sheath, said unit being covered by at least one assembly, and wherein material used for the respective insulating sheath of any conductor in a given set of twisted conductors has a relative dielectric constant that is different from that of material used for the respective insulating sheath of each conductor in each remaining set of twisted conductors such that propagation time differences between the conductors of said given set of twisted conductors and of any other set of twisted conductors is less than 2 ns/100 m.