JP5068663B2 - Electrical cable with filler elements with reduced crosstalk - Google Patents

Description

  This application is a continuation-in-part of co-pending US patent application Ser. No. 11 / 087,571, filed Mar. 24, 2005, which was filed by Roger Lique et al. On Dec. 16, 2004. This is a continuation-in-part of US application Ser. No. 11 / 012,167, the contents of which are hereby incorporated herein by reference.

  The present invention relates to electrical cables that reduce alien crosstalk between cables. More particularly, a filler element located in the electrical cable reduces extraneous crosstalk between adjacent cables. A separator provided in each cable reduces crosstalk between the conductors of the cable.

  Interference between electrical cables bundled together in a cable system reduces the efficiency of data transmission by the cable system. Heterogeneous near-end crosstalk (ANEXT) and heterogeneous far-end crosstalk (AFEXT) noise is caused by electrical imbalances between twisted pairs of insulated conductors of adjacent cables. ANEXT and AFEXT are transmission noise, which can increase the signal-to-noise ratio (SNR) and bit error rate (BER), for example, in cable transmission systems for local area networks.

  Specifically, some of the signal currents in a twisted pair of one cable may cause other twisted pairs of other cables outside the signal path and along the circuit path between the two pairs. When combining with ANEXT and AFEXT occur. That noise damages the signal in the twisted pair outside the original signal path. When the circuit between the generating twisted pair and the receiving twisted pair leaves the boundary of one cable and crosses the boundary of the other cable, this noise becomes extraneous crosstalk. Crosstalk also occurs between twisted pairs of insulated conductors in the cable itself.

  In accordance with the present invention, an electrical cable comprising a cable jacket defining a central longitudinal axis and a plurality of insulated conductor twisted pairs oriented longitudinally within the cable jacket. Provided. Each of the twisted pairs of insulated conductors has a width. The filler element is disposed in the cable jacket and disposed adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially greater than the width of each of the twisted pairs of insulated conductors. The filler element has a central axis that is laterally offset from the longitudinal axis of the center of the cable jacket. Filler elements reduce extraneous crosstalk from adjacent cables. A separator is disposed between the twisted pair of insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors.

  The present invention also provides an electrical cable with a cable jacket defining a central longitudinal axis and a substantially non-circular outer periphery. The twisted pair of first, second, third and fourth insulated conductors are oriented longitudinally within the cable jacket. Each of the twisted pairs of insulated conductors has a width. The filler element is disposed in the cable jacket and disposed adjacent to at least one of the twisted pairs of insulated conductors. The filler element has a central axis that is laterally offset from the longitudinal axis of the center of the cable jacket. The filler element defines a diameter that is substantially circular in cross-section across the central axis and that is substantially greater than the width of the twisted pair of each insulated conductor. Filler elements reduce extraneous crosstalk from adjacent cables. A separator is disposed between the twisted pair of first and second insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors.

  The present invention also provides an electrical cable comprising a cable jacket defining a longitudinal axis and a plurality of insulated conductor twisted pairs oriented longitudinally within the cable jacket. . The twisted pairs of insulated conductors are twisted together to form a spiral core defining a first twist length. The filler element is arranged in the cable jacket and is wound around a spiral core. The filler element defines a second twist length that is greater than the first twist length of the spiral core.

  In accordance with the present invention, an electrical cable comprising a cable jacket defining a central longitudinal axis and a plurality of insulated conductor twisted pairs oriented longitudinally within the cable jacket. Provided. Each of the twisted pairs of insulated conductors has a width. The filler element is disposed in the cable jacket and disposed adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially greater than the width of the twisted pair of each insulated conductor. The filler element has a central axis that is laterally offset from the longitudinal axis of the center of the cable jacket. Filler elements reduce extraneous crosstalk from adjacent cables. A separator is disposed between the twisted pair of insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors.

  The present invention also provides an electrical cable with a cable jacket defining a central longitudinal axis and a substantially non-circular outer periphery. A twisted pair of first, second, third and fourth insulated conductors are oriented longitudinally within the cable jacket. Each of the twisted pairs of insulated conductors has a width. The filler element is disposed in the cable jacket and in a position adjacent to at least one of the twisted pairs of insulated conductors. The filler element has a central axis that is laterally offset from the longitudinal axis of the center of the cable jacket. The filler element defines a diameter that is substantially circular in cross-section across the central axis and that is substantially greater than the width of the twisted pair of each insulated conductor. Filler elements reduce extraneous crosstalk from adjacent cables. A separator is disposed between the twisted pair of first and second insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors.

  The present invention also provides an electrical cable comprising a cable jacket defining a longitudinal axis and a plurality of insulated conductor twisted pairs oriented longitudinally within the cable jacket. . The twisted pairs of insulated conductors are twisted together to form a spiral core defining a first twist length. The filler element is arranged in the cable jacket and is wound around a spiral core. The filler element defines a second twist length that is greater than the first twist length of the spiral core.

  The advantages and salient features of the present invention will become apparent from the following detailed description, which, taken in conjunction with the accompanying drawings, discloses preferred embodiments of the present invention.

  A more complete understanding of the present invention and its many attendant advantages will be readily obtained as the same is better understood by reference to the following detailed description taken in conjunction with the accompanying drawings.

  Referring to FIGS. 1 and 2, an electrical cable 100 according to a first embodiment of the present invention includes a plurality of insulated conductor twisted pairs 102 and filler elements 104 for reducing foreign crosstalk between adjacent cables. And. More particularly, the filler element 104 increases the diameter of the cable along one axis 106 of the cross section of the cable 100, and effectively, the insulated conductor pair 102 of the cable 100 and the adjacent cable's The net distance between the twisted pair of insulated conductors (not shown) is increased.

  As shown in FIG. 2, the electrical cable 100 has a cable jacket 202 that includes a filler element 104 and a plurality of filler elements 104 within an inner region 204 defined by an inner periphery 206 of the cable jacket 202. And a twisted pair 102 of insulated conductors. Although the plurality of insulated conductor twisted pairs 102 preferably includes four sets of insulated conductor pairs 208, 210, 212, and 214, the electrical cable 100 may include any number of insulated conductors. A twisted pair may be included. The cable jacket 202 may be formed of a dielectric material such as PVC, TA-910, or polyolefin low smoke zero halogen.

  Each insulated conductor twisted pair 208, 210, 212, and 214 defines a width 216 and is supported in a first portion 218 of the cable jacket 202. Cable jacket 202 defines a generally central longitudinal axis 220. As shown in FIG. 1, the cable 100 can be wound around a central longitudinal axis 220. The second portion 222 supports the filler element 104. Filler element 104 has a generally cylindrical rod shape, has a substantially circular cross-sectional shape, defines a width or diameter 224, and has a central axis 226. The first and second portions 218 and 222 are substantially continuous.

  The width 228 of the first portion 218 is substantially greater than the width 230 of the second portion 222, thereby creating a non-uniform or unbalanced outer periphery 232 of the cable jacket 202, resulting in FIG. As shown, the cross-sectional shape across the longitudinal axis 220 of the electrical cable 100 is not substantially circular. The width 228 of the first portion 218 is preferably about twice the width 230 of the second portion 222. However, as long as the first portion 218 can accommodate the twisted pair 102 of insulated conductors and the second portion 222 can accommodate the filler element 104, the width 228 of the first portion 218. May be any size relative to the width 230 of the second portion 222, for example, may be the same as or slightly larger than the width 230 of the second portion 222. The outer periphery 232 is asymmetric and defines a transition region 234 between a larger first portion 218 and a smaller second portion 222.

  The width 224 of the filler element 104 is substantially greater than the width 216 of each of the insulated conductor twisted pairs 208, 210, 212 and 214. The central axis 226 of the filler element 104 is offset laterally from the longitudinal axis 220 of the center of the cable 100. By offsetting the axis 220 of the cable 100 and the axis 226 of the filler element 104, respectively, and due to the dimensions of the filler element 104, the diameter of the cable 100 along the axis 106 increases. Since the width 224 of the filler element 104 is greater than the width 216 of the individual insulated conductor pairs, it is prevented that the pairs 208, 219, 212 and 214 surround the filler element 104 and, as a result, the filler element 104 The central axis 226 and the longitudinal axis 220 at the center of the electric cable 100 are prevented from being coaxial. Therefore, the non-circular cross-sectional shape of the electric cable 100 is maintained. The unbalanced shape of the electrical cable and the increase in diameter along the axis 106 can cause extraneous crosstalk between adjacent cables 100 by increasing the distance from the insulated conductor twisted pair of adjacent cables 100. cut back.

  The filler element 104 is preferably formed into a cylindrical rod, but the cross section of the filler element 104 may be circular, elliptical or polygonal. The filler element 104 can be formed of a single material or multiple materials. For example, the filler element 104 may be made of a dielectric material, such as polypropylene, polyolefin insulator, rigid PVC insulator, or low smoke PVC insulator. Alternatively, the filler element 104 may be made of both a dielectric material and a conductive material. For example, the filler element 104 is formed of a copper core and any one of an FEP insulator or a fluororesin, a low smoke PVC insulator, a rigid insulator, a polyolefin insulator, or a polypropylene insulator. Also good.

  Referring to FIG. 3, an electrical cable 300 according to a second embodiment of the present invention, except that a second filler element 304 is disposed in a third portion 336 of the cable jacket 302, This is the same as the electric cable 100 of the first embodiment. The third portion 336 is substantially the same size as the second portion 222, and the second filler element 304 is substantially the same size as the first filler element 104. The outer periphery 332 of the cable jacket 302 is not uniform and has a cross section that is not circular. However, unlike the first embodiment, the outer periphery is substantially symmetric about the vertical axis of FIG. Similar to the filler element 104, the second filler element 304 has a central axis 326 that is offset from the longitudinal axis 320 of the center of the cable 300. The second filler element 304 further increases the distance between adjacent cables along the axis 106 and reduces extraneous crosstalk caused by adjacent cables.

  Referring to FIG. 4, an electrical cable 400 according to a fourth embodiment of the present invention comprises a filler element 404 and a plurality of insulated conductor twisted pairs supported in a cable jacket 405. Filler element 404 is similar to filler element 104 except that it is larger, preferably about twice the width 216 of each insulated conductor twisted pair 208, 210, 212 and 214. Unlike the cables 100 and 300 of the first and second embodiments, the cable jacket 405 of the cable 400 has a single portion 418 for supporting the filler element 404 and the plurality of twisted pairs 102. The filler element 404 also includes a conductive core 408.

  Similar to the cables 100 and 300 of the first and second embodiments, the cross-sectional shape of the cable 400 is not circular but is, for example, elliptical. The non-circular shape of the cable 400 defines a uniform outer periphery 432 of the cable jacket 405. The non-circular cross-sectional shape of the cable jacket 405 increases the diameter of the cable 400 along one axis 406 of the cable 400. The central axis 426 of the filler element 404 is offset from the longitudinal axis 420 at the center of the cable 400. Since the width or diameter 424 of the filler element 404 is approximately twice the width 216 of each insulated conductor twisted pair 208, 210, 212, and 214, the pair 208, 210, 212, and 214 tie the filler element 404 together. Surrounding is prevented, so that the filler element 404 remains offset from the central longitudinal axis 420 of the cable 400. Similar to the first and second embodiments, by forming the cable 400 in this manner, the distance between the insulated conductor twisted pair of adjacent cables is increased, thereby reducing extraneous crosstalk. To do.

  Referring to FIGS. 5 and 6, electrical cables 500 and 600 include a plurality of separators 540, 542, 544 (FIG. 5) and 640, 642, 644 (FIG. 6), respectively, of insulated conductor twisted pairs 208, 210. , 212 and 214, and is the same as the electrical cables 100 and 300 of the first and second embodiments except that it reduces crosstalk between adjacent pairs. Three separators are preferably used, but any number of separators may be used, including a single separator.

  As shown in FIG. 5, the three separators 540, 542, and 544 divide the inner region 204 of the cable 100 into four quadrants, each quadrant of the insulated conductor twisted pair 208, 210, 212, and 214. Supports one set of Similarly, three separators 640, 642, and 644 divide the inner region 204 of the cable 300. It separates twisted pairs 208, 210, 212, and 214 into four quadrants, thereby separating twisted pairs 208, 210, 212, and 214 from each other and reducing crosstalk between twisted pairs.

  Each first separator 540 and 640 is substantially straight and divides the interior region 204 of their respective cables 500 and 600 into first and second halves 546, 646 and 548, 648 in two sets. Insulated conductor twisted pairs 208 and 214 are disposed in the first halves 546, 646 and the remaining two pairs 210 and 212 are disposed in the second halves 548, 648. . Each of the second separators 542 and 642 is disposed in a first half 546 and 646 of the respective cable. Similarly, each of third separators 544 and 644 are disposed in second halves 546 and 646, respectively. Each second separator 542 and 642 separates twisted pair 208 and 214, and each third separator 544 and 644 separates twisted pair 210 and 212. Separators 540, 542, 544 and 640, 642, 644 are preferably formed of a polymer material, such as a solid or foamed polymer tape. Separators 540, 542, 544 and 640, 642, 644 are co-pending commonly owned US patents entitled Reduced Alien Crosstalk Electrical Cable filed Dec. 16, 2004. Similar to the three separator tapes disclosed in application 11 / 012,149, the contents of which are hereby incorporated by reference.

  Referring to FIGS. 7A and 7B, each of the cable embodiments described above is preferably twisted in this manner, so that the filler elements are insulated conductor twisted pairs 208, 210, 212 and 214 and Tangles are prevented. For example, the twisted pairs 208, 210, 212, 214 of insulated conductors in the cable jacket 202 of the cable 100 are twisted together about the axis 220 (FIG. 2) and twisted or spiraled together. A core 702 is formed. Separators similar to separators 540, 542, 544, 640, 642 and 644 are provided between twisted pairs 208, 210, 212, 214 of insulated conductors and twisted together with these pairs as part of helical core 702. Combined. Filler element 104 is wrapped around a helical core 702.

  As shown in FIG. 7B, the spiral core 702 defines a core lay length 704 between a first vertex 706 and a second vertex 708 (a single representing the spiral core 702). A twisted pair 208 of insulated conductors is shown). Similarly, the filler element 104 defines a filler twist length 710 that is defined between the first vertex 712 and the second vertex 714 of the filler element 104. The filler twist length 710 is greater than the core twist length 704, thereby preventing the filler element 104 from engaging or tangling with the spiral core 702. Preferably, filler twist length 710 is substantially greater than core twist length 704. For example, the core twist length 704 may be about 1.5-3 inches and the filler twist length 710 may be about 2.5-4 inches. Each of core twist length 704 and filler twist length 710 may vary along the length of the cable. In order to twist the pairs 208, 210, 212 and 214 and the filler element 104 substantially simultaneously and maintain the filler twist length 710 greater than the core twist length 704, the cross member ( (Not shown) is added to a conventional machine for twisting cables. The traverse moves the filler element 104 back and forth when the core 702 is twisted together. Moving the filler element 104 back and forth ensures that the pairs 208, 210, 212 and 214 are twisted together and that the filler element 104 wraps around these pairs, thereby ensuring that the filler element 104 A longer twist length 710 is created. By preventing the filler element 104 from tangling with the insulated conductor twisted pair 208, 210, 212 and 214, the filler element 104 stays outside these pairs, thereby providing sufficient clearance between adjacent cables. Distances are maintained and extraneous crosstalk is reduced.

  Referring to FIG. 8, an electrical cable 800 according to another embodiment of the present invention uses a single separator 840 to wire pairs 208, 210, 212, and 214 instead of a plurality of separators 540, 542, and 544. It is the same as the cable 500 except that it is separated. Separator 840 may be formed as a unitary one-piece member and extends along a central axis 820. Separator 840 includes cross members 842 and 844 that form a substantially crossweb shape, which typically defines an inner region 804 of cable jacket 802 in four quadrants 846, 848, 850. , And 852. Wire pair 208 is located in first quadrant 846, wire pair 210 is located in second quadrant 848, wire pair 212 is located in third quadrant 850, and wire pair 214 is located in fourth quadrant 852.

  The filler element 804 of the cable 800 is disposed between the separator 840 and the cable jacket 802, that is, the filler element 804 is disposed outside the separator 840. Filler element 804 can be aligned with either transverse member 842 and 844 of separator 840, thereby forming a non-uniform shape in cable jacket 802.

  Filler element 804 may include inner and outer portions 860 and 862. As shown in FIG. 8, the inner portion 860 is free of any material, and therefore the filler element 804 may be hollow. As an alternative, the inner and outer portions 860 and 862 may be formed of different materials, similar to the filler element 404 (FIG. 4). For example, the inner and outer portions 860 and 862 may be foamed or solid VATAR (ethylene chlorotrifluoroethylene copolymer), polyvinyl chloride, such as low smoke semi-rigid polyvinyl chloride, fluorinated ethylene propylene, any type of polymer You may form with resin etc.

  While individual embodiments have been chosen to illustrate the invention, it is understood that various changes and modifications may be made therein without departing from the scope of the invention as defined in the appended claims. Those skilled in the art will understand. Any number of filler elements may be used in the cable, including, for example, one, two, or two or more filler elements.

1 is a perspective view of an electric cable according to a first embodiment of the present invention. FIG. 2 is a cross-sectional elevation view of the electrical cable shown in FIG. 1 showing a plurality of insulated conductor twisted pairs and filler elements covered by the cable jacket. It is a sectional elevation view of an electric cable according to a second embodiment of the present invention. It is a sectional elevation view of an electric cable according to a third embodiment of the present invention. FIG. 3 is a sectional elevational view of an electrical cable similar to FIG. 2 except that a plurality of separators are provided to separate insulated conductor twisted pairs. FIG. 4 is a cross-sectional elevation view of an electrical cable similar to that of FIG. 3 except that a plurality of separators are provided to separate insulated conductor twisted pairs. 1 is a perspective view of an electrical cable according to an embodiment of the present invention, showing the twisted core and filler element of the cable. FIG. FIG. 7B is a diagram of an insulated conductor twisted pair and a wound filler element of the cable shown in FIG. 7A, showing different twist lengths of the insulated conductor twisted pair and filler element. FIG. 6 is a cross-sectional elevation view of an electrical cable according to another embodiment of the present invention, showing a cross web separator and filler elements having inner and outer portions.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Electrical cable 102 Twisted pair of insulated conductors 104 Filler element 106 Axle

Claims (86)

In electrical cable,
A cable jacket defining a central longitudinal axis;
A plurality of insulated conductor twisted pairs oriented longitudinally in the cable jacket, each of the insulated conductors defining a width and the plurality of insulated conductors. The twisted pair of conductors includes at least three pairs of insulated conductors forming a core,
And a filler element disposed in the cable jacket and adjacent to at least one of the insulated conductor twisted pair and adjacent to a portion of the cable jacket. A twisted pair of insulated conductors is not disposed between a portion of the cable jacket and the filler element, the filler element having a width greater than the width of each of the insulated conductors. The filler element has a central axis that is laterally offset from the longitudinal axis of the center of the cable jacket, and the filler element is wrapped around the core; The electrical cable is characterized in that the filler element does not have any insulated conductor twisted pair. The electrical cable of claim 1, wherein the cable jacket defines an outer periphery that is not substantially circular in cross section across the central longitudinal axis of the center.   The electrical cable according to claim 2, wherein the outer periphery has a substantially elliptical cross section across the longitudinal axis of the center. The electricity of claim 2, wherein the outer periphery has first and second portions, and the first portion is larger than the second portion, so that the outer periphery is not uniform. cable. The twisted pair of insulated conductors is disposed in the first portion, and the filler element is disposed in the second portion. Electric cable. The electric cable according to claim 4, wherein the outer periphery has a third portion, and the first portion is larger than the third portion. The electric cable according to claim 6, wherein the first portion is disposed between the second and third portions. The plurality of insulated conductor twisted wire pairs are disposed in the first portion;
The filler element is disposed in the second portion;
The electric cable according to claim 6, wherein a second filler element is disposed in the third portion. The electrical cable according to claim 1, wherein a second filler element is disposed in the cable jacket. The second filler element has a central axis that is laterally offset from a longitudinal axis of the center of the cable jacket;
10. The electrical cable of claim 9, wherein the second filler element defines a width that is greater than the width of each of the insulated conductors. The electric cable according to claim 1, wherein the filler element has a substantially circular cross section across the central axis. The electrical cable of claim 1, wherein the width of the filler element is about twice the width of each of the insulated conductors. The electrical cable of claim 1, wherein the cable jacket is wound around a central longitudinal axis. The electrical cable according to claim 1, wherein the filler element is made of a dielectric material. The electric cable according to claim 1, wherein the filler element has a conductive core. In electrical cable,
A cable jacket defining a central longitudinal axis and a substantially non-circular perimeter;
A plurality of insulated conductor twisted pairs oriented longitudinally in the cable jacket, each of the insulated conductors defining a width and the plurality of insulated conductors The conductor twisted pair includes at least three sets of insulated conductor twisted pairs forming a core;
And a filler element disposed in the cable jacket and adjacent to at least one of the insulated conductor twisted pair and adjacent to a portion of the cable jacket. And a twisted pair of insulated conductors is not disposed between a portion of the cable jacket and the filler element, the filler element being transverse to the longitudinal axis of the center of the cable jacket. The filler element has a substantially circular cross section across the central axis and defines a diameter greater than the width of each of the insulated conductors; The filler element is wrapped around the core, and the filler element is twisted of any insulated conductor Electrical cables, characterized in that also do not have A. The electrical cable according to claim 16, wherein the outer periphery has a substantially elliptical cross section across the longitudinal axis of the center. The electric cable according to claim 16, wherein the outer periphery is not substantially uniform. The cable jacket has first and second portions,
The first portion supports the plurality of twisted wire pairs, and the second portion supports the filler element;
The electrical cable of claim 18, wherein the first portion is substantially larger than the second portion. The electrical cable according to claim 16, wherein the filler element is made of a dielectric material. The electric cable according to claim 16, wherein the filler element has a conductive core. A second filler element is disposed in the cable jacket;
The second filler element has a central axis that is laterally offset from a longitudinal axis of the center of the cable jacket;
The electrical cable of claim 16, wherein the second filler element is larger than the width of each of the insulated conductors. In electrical cable,
A cable jacket defining a central longitudinal axis;
A plurality of insulated conductor twisted pairs oriented longitudinally in the cable jacket, each of the insulated conductors defining a width and the plurality of insulated conductors. The twisted pair of conductors includes at least three pairs of insulated conductors forming a core,
And a filler element disposed in the cable jacket and disposed adjacent to at least one of the twisted pair of insulated conductors, the filler element being insulated. Defining a width greater than the width of each of the conductors, wherein the filler element has a central axis that is laterally offset from a longitudinal axis of the center of the cable jacket, and the filler element includes: An electric cable that is wound around a core. In electrical cable,
A cable jacket defining a central longitudinal axis;
A plurality of insulated conductor twisted pairs oriented longitudinally in the cable jacket, and the at least three pairs of insulated conductor twisted pairs forming a core A twisted pair of insulated conductors of
And a filler element disposed in the cable jacket and adjacent to at least one of the insulated conductor twisted pair and adjacent to a portion of the cable jacket. And a twisted pair of insulated conductors is not disposed between a portion of the cable jacket and the filler element, the filler element being transverse to the longitudinal axis of the center of the cable jacket. The filler element is wrapped around the core, and the filler element does not have any insulated conductor twisted pair. Electrical cable. The electric cable according to claim 24, wherein an outer periphery of the cable jacket is not circular. 25. The electrical cable of claim 24, wherein the filler element has a substantially circular cross section across the central axis of the cable jacket. In electrical cable,
A cable jacket defining a central longitudinal axis;
A plurality of insulated conductor twisted pairs oriented longitudinally in the cable jacket, each of the insulated conductor twisted pairs defining a width;
And a filler element disposed in the cable jacket and disposed at a position adjacent to at least one of the twisted pairs of insulated conductors, wherein the filler elements are each insulated. The filler element has a central axis laterally offset from a longitudinal axis of the center of the cable jacket, the filler element defining a width substantially greater than a width of the twisted pair of conductors; Reduces extraneous crosstalk from adjacent cables,
The electrical apparatus further comprises at least one separator disposed between the twisted pair of insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors. cable. The plurality of insulated conductor twisted pairs includes first, second, third and fourth insulated conductor twisted pairs;
28. The electrical cable of claim 27, wherein the separator is disposed between a twisted pair of the first and second insulated conductors. 29. The electrical cable of claim 28, wherein a second separator is disposed between the twisted pair of the second and third insulated conductors in the cable jacket. 30. The electrical cable of claim 29, wherein a third separator is disposed between the twisted pair of the first and fourth insulated conductors in the cable jacket.   28. The electrical cable of claim 27, wherein the separator is substantially straight or substantially bent. 28. The electrical cable of claim 27, wherein the cable jacket defines an outer periphery whose cross-section across the central longitudinal axis is not substantially circular. A second filler element is disposed in the cable jacket;
The second filler element has a central axis that is laterally offset from a longitudinal axis of the center of the cable jacket;
28. The electrical cable of claim 27, wherein the second filler element defines a width that is substantially greater than a width of each of the insulated conductor twisted pairs. 28. The electrical cable of claim 27, wherein the width of the filler element is approximately twice the width of each of the plurality of insulated conductor twisted pairs. In electrical cable,
A cable jacket defining a central longitudinal axis and a substantially non-circular perimeter;
A twisted pair of first, second, third and fourth insulated conductors oriented longitudinally in the cable jacket, each of the insulated conductors having a width And
And a filler element disposed in the cable jacket and disposed at a position adjacent to at least one of the twisted pairs of insulated conductors, wherein the filler element comprises the cable jacket. The filler element has a central axis that is laterally offset from a longitudinal axis of the central portion, the filler element being substantially circular in cross-section across the central axis, and each of the insulated conductors Defining a diameter greater than the width, the filler element reduces extraneous crosstalk from adjacent cables, and the twisted pair of first, second, third and fourth insulated conductors are twisted together. And the filler element is wrapped around a twisted pair of the first, second, third and fourth insulated conductors. Have been, and the first, second, twisted pair and twist lay length of said filler element of the third and fourth insulated conductors varies along the length of the cable,
And a first separator disposed between the twisted pair of the first and second insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors. An electrical cable characterized by that. A second separator is disposed between the twisted pair of the second and third insulated conductors in the cable jacket;
36. The electrical cable of claim 35, wherein a third separator is disposed between the twisted pair of the first and fourth insulated conductors in the cable jacket. The first separator is substantially straight;
37. The electrical cable of claim 36, wherein each of the second and third separators is substantially bent.   37. The electrical cable of claim 36, wherein each of the first, second, and third separators is made of a polymer tape. 36. The electrical cable of claim 35, wherein the outer periphery is not substantially uniform. The cable jacket has first and second portions,
The first portion supports a twisted pair of the first, second, third and fourth insulated conductors, and the second portion supports the filler element;
36. The electrical cable of claim 35, wherein the first portion is substantially larger than the second portion. 36. The electrical cable of claim 35, wherein the filler element is made of a dielectric material. 36. The electric cable according to claim 35, wherein the filler element has a conductive core. In electrical cable,
A cable jacket defining a length and a longitudinal axis along the length direction;
A plurality of insulated conductor twisted pairs oriented in a longitudinal direction in the cable jacket, wherein the plurality of insulated conductor twisted pairs are twisted together to form a spiral core And determining the first twist length,
And a filler element disposed in the cable jacket and wound around the spiral core, wherein the filler element is different from the first twist length of the spiral core. An electrical cable having a twist length of 2. 44. The electrical cable of claim 43, wherein the filler element defines a width that is substantially greater than a width defined by each of the insulated conductors. In electrical cable,
A cable jacket having a longitudinal axis;
A twisted pair of insulated conductors oriented longitudinally in the cable jacket; and
A filler element disposed in the cable jacket and disposed adjacent to at least one of the twisted pair of insulated conductors, the filler element comprising the insulated conductor The filler element has a central axis that is laterally offset from the longitudinal axis of the center of the cable jacket, and the filler element has a core Wrapped around,
Further, in the electric cable, the plurality of insulated first disposed between twisted pairs of conductors, second, and third have a separators, the first, second, and third separators Each having opposite first and second ends;
The first separator is substantially straight and divides the cable jacket into first and second halves;
The second separator is substantially bent and located in the first half, and at least one of the plurality of twisted pairs of conductors is between the first and second separators. Located in
The third separator is substantially bent and located in the second half, and at least one of the plurality of twisted pairs of conductors is between the first and third separators. Located in
Since the first ends of the first, second, and third separators are in contact with each other, the first ends are adjacent to each other, and the twisted pair of conductors is disposed therebetween. An electrical cable characterized by no. In electrical cable,
A cable jacket defining a central longitudinal axis;
A plurality of insulated conductor twisted pairs oriented longitudinally in the cable jacket, each of the insulated conductors defining a width;
And a filler element disposed in the cable jacket and disposed at a position adjacent to at least one of the twisted pairs of insulated conductors, wherein the filler elements are each insulated. The filler element has a central axis laterally offset from the longitudinal axis of the center of the cable jacket, and the filler element is adjacent to the adjacent cable. Wherein the plurality of insulated conductor twisted pairs includes at least three insulated conductor twisted pairs forming a core, and the filler element includes the core of the core. It is wrapped around
The electrical apparatus further comprises at least one separator disposed between the twisted pair of insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors. cable. The plurality of insulated conductor twisted pairs includes first, second, third and fourth insulated conductor twisted pairs;
47. The electrical cable of claim 46, wherein the separator is disposed between a twisted pair of the first and second insulated conductors. 48. The electrical cable of claim 47, wherein a second separator is disposed between the twisted pair of the second and third insulated conductors in the cable jacket. 49. The electrical cable of claim 48, wherein a third separator is disposed between the twisted pair of the first and fourth insulated conductors in the cable jacket.   The electrical cable of claim 46, wherein the separator is substantially straight or substantially bent. 47. The electrical cable of claim 46, wherein the cable jacket defines an outer periphery whose cross-section across the central longitudinal axis is not substantially circular. A second filler element is disposed in the cable jacket;
The second filler element has a central axis that is laterally offset from a longitudinal axis of the center of the cable jacket;
The electrical cable of claim 46, wherein the second filler element defines a width that is greater than a width of each of the insulated conductors.   The electrical cable of claim 46, wherein the width of the filler element is about twice the width of each of the insulated conductors. The electrical cable of claim 46, wherein at least a portion of the filler element is formed of a conductive material. In electrical cable,
A cable jacket defining a central longitudinal axis and a substantially non-circular perimeter;
A twisted pair of insulated conductors oriented longitudinally in the cable jacket; and
A filler element disposed in the cable jacket and disposed adjacent to at least one of the twisted pairs of insulated conductors, the filler element comprising: Having a central axis laterally offset from a central longitudinal axis, the filler element being substantially circular in cross-section across the central axis, the filler element being heterogeneous from adjacent cables The twisted pairs of the plurality of insulated conductors are twisted together, and the filler element is wound around the twisted pairs of the plurality of insulated conductors and a plurality of insulated conductors. The twisted length of the twisted conductor and the twist length of the filler element Change me,
And further comprising at least one separator disposed between the plurality of insulated conductor twisted pairs in the cable jacket to reduce crosstalk between the plurality of insulated conductor twisted pairs. Electric cable characterized by. 56. The electrical cable of claim 55, wherein the twist length of the filler element is different from the twist length of the twisted pair of the plurality of insulated conductors. 56. The electrical cable of claim 55, wherein the outer circumference of the cable jacket is not uniform. 56. The electrical cable of claim 55, wherein the filler element is made of a dielectric material. 56. The electric cable according to claim 55, wherein a part of the filler element is made of metal. In electrical cable,
A cable jacket defining a central longitudinal axis and a substantially non-circular perimeter;
A twisted pair of insulated conductors oriented longitudinally in the cable jacket; and
A filler element disposed in the cable jacket and disposed adjacent to at least one of the twisted pairs of insulated conductors, the filler element comprising: Having a central axis laterally offset from a central longitudinal axis, the filler element being substantially circular in cross-section across the central axis, the filler element being heterogeneous from adjacent cables The twisted pairs of the plurality of insulated conductors are twisted together, and the filler element is wound around the twisted pairs of the plurality of insulated conductors and a plurality of insulated conductors. The twisted length of the twisted conductor and the twist length of the filler element Electrical cables, characterized in that the change in me. In electrical cable,
A cable jacket defining a central longitudinal axis;
A plurality of insulated conductor twisted pairs including first, second, third and fourth insulated conductor twisted pairs oriented longitudinally in the cable jacket, Each of the insulated conductors defines a width and
And a filler element disposed in the cable jacket and disposed at a position adjacent to at least one of the twisted pairs of insulated conductors, wherein the filler elements are each insulated. The filler element has a central axis laterally offset from the longitudinal axis of the center of the cable jacket, and the filler element is adjacent to the adjacent cable. To reduce foreign crosstalk from
And a first separator disposed between the twisted pair of the first and second insulated conductors in the cable jacket to reduce crosstalk between the twisted pairs of the insulated conductors. ,
A second separator disposed between the twisted pair of the second and third insulated conductors in the cable jacket;
And a third separator disposed between the twisted pair of the first and fourth insulated conductors in the cable jacket. In electrical cable,
A cable jacket defining a central longitudinal axis, wherein the cable jacket defines an outer periphery whose cross-section across the central longitudinal axis is not substantially circular;
And further comprising a twisted pair of insulated conductors oriented longitudinally in the cable jacket, each of the insulated conductors defining a width;
And a filler element disposed in the cable jacket and disposed at a position adjacent to at least one of the twisted pairs of insulated conductors, wherein the filler elements are each insulated. The filler element has a central axis laterally offset from the longitudinal axis of the center of the cable jacket, and the filler element is adjacent Reduce the extraneous crosstalk from the cable
The electrical apparatus further comprises at least one separator disposed between the twisted pair of insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors. cable. In electrical cable,
A cable jacket defining a central longitudinal axis;
A plurality of insulated conductor twisted pairs oriented longitudinally in the cable jacket, each of the insulated conductors defining a width;
And a filler element disposed in the cable jacket and disposed at a position adjacent to at least one of the twisted pairs of insulated conductors, wherein the filler elements are each insulated. The filler element has a central axis laterally offset from the longitudinal axis of the center of the cable jacket, and the filler element is adjacent Reduce the extraneous crosstalk from the cable
And further comprising at least one separator disposed between the twisted pair of insulated conductors in the cable jacket to reduce crosstalk between the twisted pair of insulated conductors, the separator being substantially Electrical cable characterized in that it is straight or substantially bent. In electrical cable,
A cable jacket defining a central longitudinal axis;
A twisted pair of insulated conductors oriented longitudinally in the cable jacket; and
A filler element disposed in the cable jacket, the filler element having a central axis that is laterally offset from a longitudinal axis of the center of the cable jacket; and The filler element reduces extraneous crosstalk from adjacent cables,
And further comprising a separator disposed between the insulated conductor twisted pair substantially at the center of the cable jacket to reduce crosstalk between the insulated conductor twisted pair and the filler. An electric cable, wherein the element is located outside the single separator. The electrical cable of claim 64, wherein the separator is a single separator having a substantially cross-web shape. 66. The electric cable according to claim 65, wherein the separator is an integrally formed member. Each of the insulated conductors of the twisted pair defines a width;
The electrical cable of claim 64, wherein the filler element defines a width that is greater than a width of each of the insulated conductors. The electrical cable of claim 64, wherein the cable jacket has a shape that is not substantially uniform. The separator forms at least first and second quadrants in the cable jacket, and each of the plurality of insulated conductor twisted pairs is one of the first and second quadrants. The electrical cable of claim 64, wherein the electrical cable is located therein. A second filler element is disposed in the cable jacket;
The second filler element has a central axis that is laterally offset from a longitudinal axis of the center of the cable jacket;
65. The electrical cable of claim 64, wherein the second filler element defines a width that is substantially greater than a width of a set of twisted pairs of insulated conductors. 65. The electrical cable of claim 64, wherein the filler element has inner and outer portions, the inner portion being hollow. 65. The electrical cable of claim 64, wherein the filler element has inner and outer portions, the inner and outer portions being formed of different materials. 73. The electrical cable of claim 72, wherein at least one of the inner and outer portions is formed of metal. In electrical cable,
A cable jacket defining a central longitudinal axis;
A twisted pair of insulated conductors oriented longitudinally in the cable jacket; and
A filler element disposed adjacent to at least one of the plurality of twisted pairs of insulated conductors in the cable jacket, the filler element comprising the center of the cable jacket. Having a central axis that is laterally offset from a longitudinal axis, the filler element being substantially circular in cross section across the central axis and defining inner and outer portions, the inner portion being An electrical cable that is hollow and that reduces filler cross-talk from adjacent cables. Each of the insulated conductors of the twisted pair defines a width;
75. The electrical cable of claim 74, wherein the diameter of the outer portion is greater than the width of each of the insulated conductors. 75. The apparatus further comprises a separator disposed between the plurality of insulated conductor twisted pairs in the cable jacket to reduce crosstalk between the insulated conductor twisted pairs. Electrical cable as described in 76. The electrical cable of claim 75, wherein the separator is a single separator having a substantially crossweb shape. 76. The electrical cable of claim 75, wherein the cable jacket has a substantially non-uniform shape. The electrical cable of claim 74, wherein the outer portion of the filler element is formed of a plastic material. In electrical cable,
A cable jacket defining a central longitudinal axis and a substantially non-circular perimeter;
A twisted pair of insulated conductors oriented longitudinally in the cable jacket; and
A filler element disposed adjacent to at least one of the plurality of twisted pairs of insulated conductors in the cable jacket, the filler element comprising the center of the cable jacket. Having a central axis laterally offset from a longitudinal axis, the filler element being substantially circular in cross-section across the central axis and defining inner and outer portions, the inner and outer The electrical cable is characterized in that the parts are made of different materials, and the filler element reduces foreign crosstalk from adjacent cables. Each of the insulated conductors of the twisted pair defines a width;
81. The electrical cable of claim 80, wherein the diameter of the outer portion is greater than the width of each of the insulated conductors. The inner and outer portions are formed of a material selected from the group consisting of foamed or solid ethylene chlorotrifluoroethylene copolymer, polyvinyl chloride, fluorinated ethylene propylene, and polymer resin. Item 80. The electric cable according to Item 80. 81. The apparatus further comprises a separator disposed between the plurality of insulated conductor twisted pairs in the cable jacket to reduce crosstalk between the insulated conductor twisted pairs. Electrical cable as described in 83. The electrical cable of claim 82, wherein the separator is a single separator having a substantially crossweb shape. Further comprising first, second, and third separators disposed between the plurality of insulated conductor twisted pairs in the cable jacket to reduce crosstalk therebetween; 81. The electrical cable of claim 80, wherein the separator is substantially straight and the second and third separators are substantially bent. 81. The electrical cable of claim 80, wherein at least one of the inner and outer portions of the filler element is formed of metal.

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