Reduced alien crosstalk electrical cable with filler element

• US 7,317,163 B2
• Filed: 10/12/2005
• Issued: 01/08/2008
• Est. Priority Date: 12/16/2004
• Status: Expired due to Fees

• Current Assignee: General Cable Technologies Corporation (General Cable Corporation), Panduit Corporation
• Original Assignee: General Cable Technologies Corporation (General Cable Corporation), Panduit Corporation
• Inventors: McLaughlin, Thomas, Lique, Roger, Doorhy, Mike, Hawkins, David, Baddar, Asef
• Primary Examiner(s): Nguyen; Chau N.
• Application Number:
  US11/247,163
• Publication Number:
  US 20060131058A1
• Time in Patent Office: 818 Days
• Field of Search: 174/113.R, 174/113.C
• US Class Current: 174/113.00C
• CPC Class Codes: H01B 11/06 with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens

Abstract

An electrical cable includes a cable jacket defining a central longitudinal axis and a plurality of twisted pairs of insulated conductors oriented longitudinally within the cable jacket. Each of the twisted pairs of insulated conductors has a width. A filler element is disposed in the cable jacket and is located adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially larger than the width of each the twisted pairs of insulated conductors. The filler element has a central axis laterally offset from the central longitudinal axis of the cable jacket. The filler element reduces alien crosstalk from an adjacent cable. A separator is disposed in said cable jacket between the twisted pairs of insulated conductors to reduce crosstalk between the twisted pairs of insulated conductors.

Claims

1. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

at least first, second, and third twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a filler element disposed adjacent a portion of said cable jacket, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said filler element reducing alien crosstalk from an adjacent cable; and

a separator generally centrally disposed in said cable jacket between said twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors, and

said at least first, second, and third twisted pairs of insulated conductors and said separator form a core, and said filler element being located outside of said core.

2. An electrical cable according to claim 1, wherein said separator is a single separator having a substantially crossweb shape.

3. An electrical cable according to claim 2, wherein said separator is a unitary one-piece member.

4. An electrical cable according to claim 1, wherein

each of said insulated conductors of said twisted pairs defining a width;

and

said filler element defining a width that is larger than said width of each of said insulated conductors.

5. An electrical cable according to claim 1, wherein

said cable jacket has a substantially uneven shape.

6. An electrical cable according to claim 1, wherein

said separator forms at least first and second quadrants within said cable jacket, and each of said twisted pairs of insulated conductors being located in one of said first and second quadrants.

7. An electrical cable according to claim 1, wherein

a second filler element is disposed in said cable jacket;

said second filler element has a central axis laterally offset from said central longitudinal axis of said cable jacket; and

said second filler element defines a width that is substantially larger than a width of one of said twisted pairs of insulated conductors.

8. An electrical cable according to claim 1, wherein

said filler element includes inner and outer sections, and said inner section being hollow.

9. An electrical cable according to claim 1, wherein

said filler element includes inner and outer sections, and said inner and outers section being formed of different materials.

10. An electrical cable according to claim 9, wherein

at least one of said inner and outer sections is formed of a metal.

11. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

at least first, second, and third twisted pairs of insulated conductors oriented longitudinally within said cable jacket; and

a filler element disposed adjacent a portion of said cable jacket adjacent at least one of said plurality of twisted pairs of insulated conductors, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, said filler element being substantially circular in section transverse to said central axis and defining inner and outer sections, said inner section being hollow, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and

said at least first, second, and third twisted pairs of insulated conductors form a core, said filler element being located outside of said core, and said filler element reducing alien crosstalk from an adjacent cable.

12. An electrical cable according to claim 11, wherein

each of said insulated conductors of said twisted pairs defining a width;

and

a diameter of said outer section being larger than said width of each of said insulated conductors.

13. An electrical cable according to claim 12, wherein

said cable jacket has a substantially uneven shape.

14. An electrical cable according to claim 11, further comprising

a separator disposed in said cable jacket between said plurality of twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors.

15. An electrical cable according to claim 14, wherein

said separator is a single separator having a substantially crossweb shape.

16. An electrical cable according to claim 11, wherein

said outer section of said filler element is formed of a plastic material.

17. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis and a substantially non-circular outer perimeter;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket; and

a filler element disposed adjacent to a portion said cable jacket adjacent at least one of said plurality of twisted pairs of insulated conductors, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, said filler element being substantially circular in section transverse to said central axis and defining inner and outer sections, said inner and outer sections being formed of different materials, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and

said plurality of twisted pairs of insulated conductors forming a core, said filler element being located outside of said core, and said filler element reducing alien crosstalk from an adjacent cable.

18. An electrical cable according to claim 17, wherein

each of said insulated conductors of said twisted pairs defining a width;

and a diameter of said outer section being larger than said width of each of said insulated conductors.

19. An electrical cable according to claim 17, wherein

said inner and outer sections are formed of a material selected from the groups consisting of foamed or solid ethylene-chloro triflouro ethylene copolymer, polyvinyl chloride, fluorinated ethylene propylene, and polymer resin.

20. An electrical cable according to claim 19, further comprising

said separator is a single separator having a substantially crossweb shape.

21. An electrical cable according to claim 17, further comprising

a separator disposed in said cable jacket between said plurality of twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors.

22. An electrical cable according to claim 17, further comprising

first, second, and third separators disposed in said cable jacket between said plurality of twisted pairs of insulated conductors to reduce crosstalk therebetween, said first separator being substantially straight and said second and third separators being substantially curved.

23. An electrical cable according to claim 17, wherein

at least one of said inner and outer sections of said filler element is formed of a metal.

24. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a filler element disposed adjacent a portion of said cable jacket, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said filler element reducing alien crosstalk from an adjacent cable; and

a single separator generally centrally disposed in said cable jacket between said twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors, said separator having a substantially crossweb shape, and

said filler element being located outside of said separator.

25. An electrical cable according to claim 24, wherein said separator is a unitary one-piece member.

26. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

at least first, second, and third twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a first filler element disposed adjacent a portion of said cable jacket, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said filler element reducing alien crosstalk from an adjacent cable;

a separator generally centrally disposed in said cable jacket between said twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors, and said first filler element being located outside of said separator and said at least first, second, and third twisted pairs of insulated conductors; and

a second filler element disposed in said cable jacket, said second filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, and said second filler element defining a width that is substantially larger than said width of one of said twisted pairs of insulated conductors.

27. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket, each of said insulated conductors of said twisted pairs defining a width;

a filler element disposed adjacent a portion of said cable jacket adjacent at least one of said plurality of twisted pairs of insulated conductors, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, said filler element being substantially circular in section transverse to said central axis and defining inner and outer sections, said inner section being hollow, a diameter of said outer section being larger than said width of each of said insulated conductors, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said filler element reducing alien crosstalk from an adjacent cable;

a single separator disposed in said cable jacket having a substantially crossweb shape.

28. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis and a substantially non-circular outer perimeter;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a filler element disposed adjacent to a portion said cable jacket adjacent at least one of said plurality of twisted pairs of insulated conductors, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, said filler element being substantially circular in section transverse to said central axis and defining inner and outer sections, said inner and outer sections being formed of different materials, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, said filler element reducing alien crosstalk from an adjacent cable; and

first, second, and third separators disposed in said cable jacket between said plurality of twisted pairs of insulated conductors to reduce crosstalk therebetween, said first separator being substantially straight and said second and third separators being substantially curved.

29. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a filler element disposed adjacent a portion of said cable jacket, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said filler element reducing alien crosstalk from an adjacent cable; and

a single separator generally centrally disposed in said cable jacket between said twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors, said separator having a substantially crossweb shape, and

said plurality of twisted pairs of insulated conductors and said separator form a core, and said filler element being located outside of said core.

30. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis, said cable jacket having a substantially uneven shape;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a filler element disposed adjacent a portion of said cable jacket, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said filler element reducing alien crosstalk from an adjacent cable; and

a separator generally centrally disposed in said cable jacket between said twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors, and

said plurality of twisted pairs of insulated conductors and said separator form a core, and said filler element being located outside of said core.

31. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a filler element disposed adjacent a portion of said cable jacket, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said filler element reducing alien crosstalk from an adjacent cable; and

a separator generally centrally disposed in said cable jacket between said twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors, and said separator forming at least first and second quadrants within said cable jacket, and each of said plurality of twisted pairs of insulated conductors being located in one of said first and second quadrants, and

said plurality of twisted pairs of insulated conductors and said separator form a core, and said filler element being located outside of said core.

32. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a first filler element disposed adjacent a portion of said cable jacket, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and said first filler element reducing alien crosstalk from an adjacent cable;

a separator generally centrally disposed in said cable jacket between said twisted pairs of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors, and said plurality of twisted pairs of insulated conductors and said separator form a core, and said first filler element being located outside of said core; and

a second filler element disposed in said cable jacket, said second filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, and said second filler element defining a width that is substantially larger than a width of one of said twisted pairs of insulated conductors.

33. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket;

a filler element disposed adjacent a portion of said cable jacket adjacent at least one of said plurality of twisted pairs of insulated conductors, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, said filler element being substantially circular in section transverse to said central axis and defining inner and outer sections, said inner section being hollow, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, and

said plurality of twisted pairs of insulated conductors form a core, said filler element being located outside of said core, and said filler element reducing alien crosstalk from an adjacent cable; and

a single separator having a substantially crossweb shape disposed in said cable jacket between said twisted of insulated conductors to reduce crosstalk between said twisted pairs of insulated conductors.

34. An electrical cable, comprising:

a cable jacket defining a central longitudinal axis, said cable jacket having a substantially uneven shape;

a plurality of twisted pairs of insulated conductors oriented longitudinally within said cable jacket; and

a filler element disposed adjacent a portion of said cable jacket adjacent at least one of said plurality of twisted pairs of insulated conductors, said filler element having a central axis laterally offset from said central longitudinal axis of said cable jacket, said filler element being substantially circular in section transverse to said central axis and defining inner and outer sections, said inner section being hollow, wherein no twisted pairs of insulated conductors are located between said filler element and said portion of said cable jacket, each of said insulated conductors of said twisted pairs defining a width, and

a diameter of said outer section being larger than said width of each of said insulated conductors, and

said plurality of twisted pairs of insulated conductors form a core, said filler element being located outside of said core, and said filler element reducing alien crosstalk from an adjacent cable.