Abstract: A cable suitable for use in a Power over Ethernet application may include four twisted pairs of individually insulated conductors and a jacket formed around the four twisted pairs. Each of the four twisted pairs may include two conductors having a size greater than or equal to a 19 American Wire Gauge conductor. Additionally, the four twisted pairs may be electrically connected to an RJ-45 connector. Further, the cable may have a longitudinal length greater than 100 m.

Abstract: Cables having buffer elements formed with two-dimensional fillers are described. A cable may include at least one optical fiber, and a buffer element may be formed around the at least one optical fiber. The buffer element may be formed from a material that includes a polyolefin resin, a filler added to the polyolefin resin that includes a plurality of two-dimensional particles, and a compatibilizer. A jacket may be formed around the at least one optical fiber and the buffer element.

Abstract: Colorless twisted pair communication cables may include a plurality of twisted pairs of individually insulated conductors and a jacket formed around the plurality of twisted pairs. The cable may be formed to be completely free of colorant or to include a cable core defined by the jacket that is fee of colorant. Additionally, physical indicia may optionally be incorporated into the cable to facilitate identification of the plurality of twisted pairs.

Abstract: Cables having buffer elements formed with two-dimensional fillers are described. A cable may include at least one optical fiber, and a buffer element may be formed around the at least one optical fiber. The buffer element may be formed from a material that includes a polypropylene-containing polymeric resin, a filler added to the polymeric resin that includes a plurality of two-dimensional particles, and an amphiphilic compatabilizer. A jacket may be formed around the at least one optical fiber and the buffer element.

Abstract: A method for forming a cable may include providing a strength member that includes a plurality of strength fibers positioned within a shapeable resin material. A shape of the strength member may be modified along its longitudinal length while twisting the strength member with one or more fiber optic components. The modified shape of the strength member may then be fixed within a desired operating temperature range of the cable, and a jacket may be formed around the strength member and the one or more optical fiber components.

Abstract: Communications cables having fusible continuous shields are described. A cable may include one or more electrical conductors, such as one or more twisted pairs of individually insulated electrical conductors. A shielding element may be formed around the one or more conductors in order to provide electromagnetic interference shielding for the one or more conductors. The shielding element may include a base layer of dielectric material extending in a longitudinal direction, and a plurality of longitudinally spaced segments of electrically conductive material may be formed on the base layer. A respective fusible element may be positioned between each adjacent set of the longitudinally spaced segments included in the plurality of longitudinally spaced segments. Each fusible element may provide electrical continuity between the adjacent set of longitudinally spaced segments, and each fusible element may have a minimum fusing current between 0.001 amperes and 0.500 amperes.

Abstract: A cable that may withstand an increased pulling load may include a plurality of twisted pairs of individually insulated conductors and a metallic pulling element positioned within an outer jacket layer. The metallic pulling element may longitudinally extend parallel to the twisted pairs, and the pulling element may have an elastic modulus greater than that of the twisted pair conductors. As a result of incorporating the metallic pulling element, the cable can withstand a pulling force of 330N with an elongation of less than 0.20 percent.

Abstract: A twisted pair cable may include a plurality of twisted pairs of individually insulated wires and at least one additional wire. Each additional wire may include a conductor and at least one layer of enamel insulation material or insulation formed from a thermoset material formed around the conductor. A jacket may be formed around the four twisted pairs and the at least one additional wire.

Abstract: A hybrid cable for use with sensitive detectors may include a central power delivery component, a data delivery component positioned around the power delivery component, and a jacket formed around the power delivery component and the data delivery component. The power delivery component may include a plurality of shielded first individually insulated conductors. The data delivery component may include four twisted pairs of second individually insulated conductors and respective shield layers formed around each of the four pairs. An outer diameter of the cable may be less than 8.5 mm, and the cable may be capable of transmitting data within an operating frequency range of up to 2.5 GHz over a distance of at least 100 m.

Abstract: Cables having foamed polymeric jackets that are suitable for air-blown may include at least one transmission media, such as one or more optical fibers or one or more twisted pairs. A jacket may be formed around the at least one transmission media. The jacket may be formed from or include an outer layer formed from foamed polymeric material. Additionally, an outer surface of the jacket may include a random distribution of surface variations. The surface variations may include a plurality of indentions and/or a plurality of protrusions.

Abstract: A coaxial cable may include a center conductor having a first resistance, and dielectric material may be formed around the center conductor. An outer conductor may be coaxially formed around the center conductor and the dielectric material. The outer conductor may have a second resistance substantially equal to the first resistance, and at least one slot may be formed through the outer conductor. A jacket may be formed around the outer conductor.

Abstract: Methods for forming continuous shields for use in a cable are provided. A first layer of longitudinally extending dielectric material may be provided, and a second layer of longitudinally extending electrically conductive material may be formed on the first layer. At a plurality of spaced locations along a longitudinal direction, respective gaps may be formed through both the first layer and the second layer, and each gap may span partially across a width of the second layer. Additionally, at each of the plurality of spaced locations, the gaps may result in the formation of one or more fusible elements of the electrically conductive material spanning between an adjacent set of longitudinally spaced segments of the electrically conductive material. Each fusible element may provide electrical continuity between the adjacent set of longitudinally spaced segment and may further have a minimum fusing current between 0.001 amperes and 0.500 amperes.

Abstract: A communication cable suitable for Power over Ethernet (“PoE”) applications may include one or more twisted pairs of individually insulated conductors that are insulated with a material that includes fluorinated ethylene propylene. Additionally, a jacket that includes foamed polyvinylidene fluoride may be formed around the one or more twisted pairs. The PoE cable may have a higher maximum temperature rating and be capable of transmitting higher amperage signals than conventional PoE cables while satisfying applicable electrical performance criteria.

Abstract: Electrically continuous shielding elements for use in communication cables are described. A shielding element may include a base layer of dielectric material extending in a longitudinal direction, and a plurality of longitudinally spaced segments of electrically conductive material may be formed on the base layer. A respective fusible element may be positioned between each adjacent set of longitudinally spaced segments included in the plurality of longitudinally spaced segments. Each fusible element may provide electrical continuity between the adjacent set of longitudinally spaced segments, and each fusible element may have a minimum fusing current between 0.001 amperes and 0.500 amperes.

Abstract: A hybrid or composite cable may include a core component and a plurality of buffer tubes positioned around the core component. The core component may include a plurality of insulated conductors and a filling compound positioned between and around the plurality of insulated conductors. The filling compound may have a density of less than approximately 0.70 g/cm3 and may further include a plurality of microspheres. Each of the plurality of buffer tubes may be configured to house at least one optical fiber. Additionally, a jacket may be formed around the core component and the plurality of buffer tubes.

Abstract: An extrusion assembly may include an extrusion die and an extrusion tip at least partially positioned within the die. The extrusion tip may include a base portion having a tapered end and an opening positioned approximately at an apex of the tapered end. An insert may be adjustably positioned within the base portion and configured to extend through the opening to form a land. A length of the land may be variable as the position of the insert within the base portion is adjusted. Additionally, a length of an end portion of the extrusion die may be adjusted.

Abstract: An extrusion assembly may include an extrusion die and an extrusion tip at least partially positioned within the die. The extrusion tip may include a base portion having a tapered end and an opening positioned approximately at an apex of the tapered end. An insert may be adjustably positioned within the base portion and configured to extend through, the opening to form a land. A length of the land may be variable as the position of the insert within the base portion is adjusted.

Abstract: A hybrid or composite cable may include a core component and a plurality of buffer tubes positioned around the core component. The core component may include a plurality of twisted pairs of individually insulated conductors and a filling compound positioned between and around the plurality of twisted pairs. The filling compound may have a density of less than approximately 0.70 g/cm3 and may further include a plurality of microspheres. Each of the plurality of buffer tubes may be configured to house at least one optical fiber. Additionally, a jacket may be formed around the core component and the plurality of buffer tubes.

Abstract: A cable may include a plurality of longitudinally extending twisted pairs of individually insulated conductors. A longitudinally extending separator may be positioned between the plurality of twisted pairs. The separator may include at least one portion that extends beyond and is wrapped at least partially around an outer periphery of the plurality of twisted pairs. The at least one extending portion may have a variable thickness or one or more ribs may be formed on a surface of the extending portion. Additionally, a jacket may be formed around the plurality of twisted pairs and the separator.

Abstract: Methods for forming discontinuous shields or shield structures for use in a cable are provided. A layer of dielectric material may be provided that extends in a longitudinal direction and has a first width across a width direction perpendicular to the longitudinal direction. Additionally, a layer of electrically conductive material may be formed on the dielectric material, and the layer of electrically conductive material may extend in the longitudinal direction and may have a second width across the width direction that is less than the first width. Respective gaps may be formed through both the electrically conductive material at a plurality of locations along the longitudinal direction, and each gap may span across the width direction by a distance greater than the second width but less than the first width.