SHIELDED CABLE WITH UTP PAIR ENVIRONMENT

摘要

A cable includes a spacer surrounding a cable core. The cable core includes four twisted pairs. A separator is disposed amongst the twisted pairs. The separator may be formed with three layers, wherein a middle layer is conductive and outer layers are nonconductive. A jacket surrounds the spacer, and a shielding layer may reside between the jacket and the spacer. The spacer may be formed of plural fibers or a polymer. Preferably, the spacer presents a lower dielectric constant per unit volume than the jacket. The separator may have a tape shape or a plus shape.

主权项

1. A cable comprising:
a first conductor; a first insulating material surrounding said first conductor to form a first insulated conductor; a second conductor; and a second insulating material surrounding said second conductor to form a second insulated conductor, wherein said first and second insulated conductors are twisted about each other to form a first twisted pair; a third conductor; a third insulating material surrounding said third conductor to form a third insulated conductor; a fourth conductor; and a fourth insulating material surrounding said fourth conductor to form a fourth insulated conductor, wherein said third and fourth insulated conductors are twisted about each other to form a second twisted pair; a fifth conductor; a fifth insulating material surrounding said fifth conductor to form a fifth insulated conductor; a sixth conductor; and a sixth insulating material surrounding said sixth conductor to form a sixth insulated conductor, wherein said fifth and sixth insulated conductors are twisted about each other to form a third twisted pair; a seventh conductor; a seventh insulating material surrounding said seventh conductor to form a seventh insulated conductor; an eighth conductor; and an eighth insulating material surrounding said eighth conductor to form an eighth insulated conductor, wherein said seventh and eighth insulated conductors are twisted about each other to form a fourth twisted pair; a spacer surrounding said first, second, third and fourth twisted pairs, wherein said first and third twisted pairs reside in approximately a first half of said cable, and said second and fourth twisted pairs reside in approximately a second half of said cable, and wherein a region between said first and second halves of said cable defines a middle region; a separator disposed proximate said middle region to separate said first and third twisted pairs from said second and fourth twisted pairs, said separator including at least three layers, with a first layer being nonconductive, a second layer being conductive, and a third layer being nonconductive, wherein said second layer is located between said first and third layers; a jacket disposed around said spacer; and a shielding layer disposed between said jacket and said spacer.