REDUCED ALIEN CROSSTALK ELECTRICAL CABLE WITH FILLER ELEMENT

• US 20080093106A1
• Filed: 12/19/2007
• Published: 04/24/2008
• Est. Priority Date: 12/16/2004
• Status: Active Grant

• Current Assignee: General Cable Technologies Corporation (General Cable Corporation), Panduit Corporation
• Original Assignee: Panduit Corporation
• Inventors: McLaughlin, Thomas, Lique, Roger, Doorhy, Mike, Hawkins, David, Baddar, Asef
• Granted Patent: US 7,612,289 B2
• Time in Patent Office: Days
• 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;

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

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

2. An electrical cable according to claim 1, wherein

said single separator has a substantially crossweb shape.

3. An electrical cable according to claim 2, wherein

said single separator is a unitary one-piece member.

4. An electrical cable according to claim 1, wherein

said cable jacket has a substantially uneven shape.

5. An electrical cable according to claim 1, wherein

said single separator forms 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.

6. 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 said width of one of said twisted pairs of insulated conductors.

7. An electrical cable according to claim 1, wherein

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

8. 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 difference materials.

9. 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 twisted pairs of insulated conductors defining a width; and

a filler element disposed in 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, and a diameter of said outer section being substantially larger than said width of one of said twisted pairs of insulated conductors, said filler element reducing alien crosstalk from an adjacent cable.

10. An electrical cable according to claim 9, 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.

11. An electrical cable according to claim 10, wherein

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

12. An electrical cable according to claim 10, wherein

said cable jacket has a substantially uneven shape.

13. An electrical cable according to claim 9, wherein

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

14. 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, each of said twisted pairs of insulated conductors defining a width; and

a filler element disposed in 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, and a diameter of said outer section being substantially larger than said width of one of said twisted pairs of insulated conductors, said filler element reducing alien crosstalk from an adjacent cable.

15. An electrical cable according to claim 14, 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.

16. An electrical cable according to claim 14, 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.

17. An electrical cable according to claim 16, further comprising

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

18. An electrical cable according to claim 14, 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.