A data cable assembly includes at least one pair of conductors twisted about one another, optionally disposed along an outer surface of a pair separator. The conductors are covered by an inner jacket, and an armor disposed on the outer surface of the inner jacket. The inner jacket is covered by an outer jacket with a rip cord disposed between the armor and the outer jacket.

A communication cable that includes a twisted wire pair that includes a pair of insulated wires that are twisted together and that each include a conductor and an insulating covering that covers an outer periphery of the conductor; and a sheath that is made of an insulating material and continuously covers an entire outer periphery of the twisted wire pair about a center along a longitudinal axis of the twisted wire pair, wherein the sheath has a dielectric loss tangent of 0.0001 or more in a frequency range of 1 to 50 MHz.

A cable assembly extends in a longitudinal direction. The cable assembly comprises a first cable, two second cables, two coupling portions, an interposing portion and an outer cover. The first cable has a first conductor and a first cover. Each of the second cables has a second conductor and a second cover. The coupling portions couple the second covers, respectively, with the first cover. The first cable, the two second cables and the two coupling portions are arranged in a V-shape in a plane perpendicular to the longitudinal direction. The interposing portion extends along the first cable and the two second cables and has a full length which is equal to that of each of the first cable and the two second cables. The interposing portion is brought into contact with all the first cable and the two second cables.

A high frequency signal transmission cable includes a conductor, an insulator provided over a periphery of the conductor, a plating layer provided over a periphery of the insulator, and a sheath provided over a periphery of the plating layer. A crack suppressing layer is provided between the insulator and the plating layer, in such a manner as to remain in contact with the insulator while being provided with the plating layer over an outer surface of the crack suppressing layer. The crack suppressing layer suppresses the occurrence of a cracking in the plating layer by bending while moving in a longitudinal direction of the cable relative to a bending of the insulator.

A high frequency signal transmission cable includes a conductor, an insulator provided over a periphery of the conductor, a plating layer provided over a periphery of the insulator, and a sheath provided over a periphery of the plating layer. A crack suppressing layer is provided between the insulator and the plating layer, in such a manner as to remain in contact with the insulator while being provided with the plating layer over an outer surface of the crack suppressing layer. The crack suppressing layer suppresses the occurrence of a cracking in the plating layer by bending while moving in a longitudinal direction of the cable relative to a bending of the insulator.

Twisted pair communication cables that include reduced or minimal use of colorant may include a plurality of twisted pairs of individually insulated conductors, and the respective insulation formed around each conductor included in the plurality of twisted pairs may not be blended or compounded with any colorant. Physical indicia may be selectively formed on respective outer surfaces of the insulation of at least two of the plurality of twisted pairs. The physical indicia may include colorant that occupies less than 5.0% of a surface area of the insulation on which it is formed, and the physical indicia facilitate identification of the plurality of twisted pairs. A jacket may formed around the plurality of twisted pairs.

A high frequency signal transmission cable includes a conductor, an insulator provided over a periphery of the conductor, a plating layer provided over a periphery of the insulator, and a sheath provided over a periphery of the plating layer. A crack suppressing layer is provided between the insulator and the plating layer, in such a manner as to remain in contact with the insulator while being provided with the plating layer over an outer surface of the crack suppressing layer. The crack suppressing layer suppresses the occurrence of a cracking in the plating layer by bending while moving in a longitudinal direction of the cable relative to a bending of the insulator.

A high frequency signal transmission cable includes a conductor, an insulator provided over a periphery of the conductor, a plating layer provided over a periphery of the insulator, and a sheath provided over a periphery of the plating layer. A crack suppressing layer is provided between the insulator and the plating layer, in such a manner as to remain in contact with the insulator while being provided with the plating layer over an outer surface of the crack suppressing layer. The crack suppressing layer suppresses the occurrence of a cracking in the plating layer by bending while moving in a longitudinal direction of the cable relative to a bending of the insulator.

In a method for forming a Category 6A communication cable suitable for Power over Ethernet applications, four pairs of individually insulated conductors may be provided, and each of the conductors may have a diameter of at least approximately 0.0240 inches. A respective twist lay for each of the pairs may be selected to result in the communications cable having a propagation delay skew of less than approximately 45 nanoseconds per one hundred meters and a direct current resistance unbalance between any two of the four pairs of less than approximately one hundred milliohms per one hundred meters. Each of the four pairs may be twisted based at least in part on the selected twist lays, and a jacket may be formed around the four twisted pairs.

The present invention relates to a twisted pair cable in which a shape of a separator for separating a plurality of pairs of wires apart from each other is changed and which is thus easy to manufacture, has a simple configuration, and minimizes internal interference between the pairs of wires.