High Performance Telecommunications Cable
First Claim
1. A separator spline for use in a telecommunications cable, the spline comprising:
- a principal dividing strip comprised of a middle strip and first and second outer strips; and
first and second subsidiary dividing strips attached longitudinally along said principal strip and on opposite sides thereof, wherein a point of attachment of said first subsidiary strip is between said middle strip and said first outer strip and a point of attachment of said second subsidiary strip is between said second outer strip and said middle strip.
3 Assignments
0 Petitions
Accused Products
Abstract
A telecommunications cable comprising four twisted pairs of conductors and a separator spline comprised of a principal dividing strip and a first subsidiary dividing strip attached longitudinally along a first side of the principal dividing strip and a second dividing strip attached longitudinally along a second side of the principal dividing strip, the spline separating the four twisted pairs such that they are arranged in a staggered configuration. A telecommunications cable comprising a first set of two twisted pairs of, conductors arranged on opposite sides of and running along an axis and separated by a first distance and a second set of two twisted pairs of conductors on opposite sides of and running along the axis and separated by a second distance less than the first distance. Each of the first set of twisted pairs has a twist lay which is shorter than a twist lay of either of the second set of twisted pairs. A telecommunications cable comprising a plurality of twisted pairs of conductors arranged around and running along an axis, and a cable jacket surrounding the twisted pairs, the jacket comprising an outer surface. The outer surface defines a tube having a helical centre path arranged around and running along the axis. A method for reducing cross talk between adjacent cables in a telecommunications system, the method comprising the steps of, for each of the cables, providing a plurality of twisted pairs of conductors, winding an elongate filler element around the twisted pairs and covering the twisted pairs and the element with a cable jacket, the element introducing a visible distortion into an outer surface of the jacket.
52 Citations
73 Claims
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1. A separator spline for use in a telecommunications cable, the spline comprising:
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a principal dividing strip comprised of a middle strip and first and second outer strips; and first and second subsidiary dividing strips attached longitudinally along said principal strip and on opposite sides thereof, wherein a point of attachment of said first subsidiary strip is between said middle strip and said first outer strip and a point of attachment of said second subsidiary strip is between said second outer strip and said middle strip. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A telecommunications cable comprising:
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four twisted pairs of conductors; and a separator spline comprised of a principal dividing strip and a first subsidiary dividing strip attached longitudinally along a first side of said principal dividing strip and a second dividing strip attached longitudinally along a second side of said principal dividing strip, said spline separating said four twisted pairs such that they are arranged in a staggered configuration. - View Dependent Claims (9)
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10. A telecommunications cable comprising:
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a plurality of twisted pairs of conductors arranged around and running along an axis; and a cable jacket surrounding said twisted pairs, said jacket comprising an outer surface wherein said outer surface defines a tube having a helical centre path arranged around and running along said axis. - View Dependent Claims (11, 12, 13, 14)
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15. A telecommunications cable comprising:
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a plurality of twisted pairs of conductors arranged around and running along a first axis; and a cable jacket surrounding said twisted pairs, said jacket comprising a protrusion arranged around and running along said jacket, wherein said protrusion is arranged helically around said first axis. - View Dependent Claims (16, 17, 18, 19)
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20. A telecommunications cable comprising:
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a first set of two twisted pairs of conductors arranged on opposite sides of and running along an axis; and a second set of two twisted pairs of conductors on opposite sides of and running along said axis; wherein a first flat surface bounded by said first set and a second flat surface bounded by said second set intersect along said axis at an oblique angle. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A telecommunications cable comprising:
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a first set of two twisted pairs of conductors arranged on opposite sides of and running along an axis and separated by a first distance; and a second set of two twisted pairs of conductors on opposite sides of and running along said axis and separated by a second distance less than said first distance; wherein each of said first set of twisted pairs has a twist lay which is shorter than a twist lay of either of said second set of twisted pairs. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A telecommunications cable comprising:
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a plurality of twisted pairs of conductors; an elongate filler element wound helically around said twisted pairs along a length of the cable; and a cable jacket covering said element and said twisted pairs. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A telecommunications cable comprising:
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a plurality twisted pairs of conductors; and a cable jacket covering said twisted pairs; wherein said cable jacket has a thickness which varies along a length of the cable.
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45. A telecommunications cable comprising:
a plurality of in parallel twisted pairs of conductors, wherein each of said pairs has a constant twist lay and follows a helical path along said axis, said path having a variable pitch. - View Dependent Claims (46, 47, 48, 49, 50)
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51. A telecommunications cable comprising:
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a first set of two parallel twisted pairs of conductors arranged on opposite sides of and wound helically around a first elongate path; and a second set of two parallel twisted pairs of conductors arranged on opposite sides of and wound helically around a second elongate path; wherein said helically wound first set has a radius greater than said helically wound second set. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59)
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60. A telecommunications cable comprising:
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a plurality of parallel pairs of conductors arranged along an axis; a cable jacket, said jacket when viewed in transverse cross section comprising an oblong part surrounding said helical pairs and a protruding part extending from an outer surface of the jacket; wherein said oblong part rotates along said axis and said protruding part winds about said axis and further wherein a pitch of said winding protruding part is variable versus said rotation of said oblong part. - View Dependent Claims (61, 62, 63, 64)
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65. A telecommunications cable comprising:
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four twisted pairs of conductors arranged around and running along an axis; wherein, when the cable is viewed in transverse cross section, a first distance separating a first of said twisted pairs and a second of said twisted pairs, said second pair and a fourth of said twisted pairs, and said fourth pair and a third of said twisted pairs is greater than a second distance separating said first pair and said fourth pair and said second pair and said third pair and less than a third distance separating said first pair and said third pair.
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66. A method for manufacturing a telecommunications cable comprising steps of:
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providing a plurality of twisted pairs of conductors arranged in parallel along an axis; and winding said twisted pairs helically along said axis with a variable pitch; wherein each of said wound twisted pairs has a substantially constant twist lay. - View Dependent Claims (67, 68)
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69. A method for fabricating a telecommunications cable comprising the steps of:
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providing four twisted pairs of conductors; and placing a separator spline between said twisted pairs, said spline comprising a principal dividing strip and a first subsidiary dividing strip attached longitudinally along a first side of said principal dividing strip and a second dividing strip attached longitudinally along a second side of said principal dividing strip, said spline separating said four twisted pairs such that they are arranged asymmetrically.
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70. A method for reducing cross talk between adjacent cables in a telecommunications system, the method comprising the steps of:
for each of the cables; providing a plurality of twisted pairs of conductors; winding an elongate filler element around said twisted pairs; and covering said twisted pairs and said element with a cable jacket, said element introducing a visible distortion into an outer surface of said jacket. - View Dependent Claims (71, 72, 73)
Specification