H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 7/08 (2006.01)
Patent
CA 2122420
This invention is directed to a high performance electrical telecommunication transmission cable, particular7.y for undercarpet applications. More precisely, this invention is directed to a low- profile, high performance flat cable, where the cable may be subjected to potentially damaging compressive forces from walking on an overlying carpet. The cable comprises a plurality of conductors arranged as plural sets of twisted pairs, with each conductor consisting of an inner conductive core surrounded by insulation, an outer dielectric member having plural longitudinally extending chambers, where each chamber includes two sets of the twisted pairs, spaced-apart and arranged in side-by-side fashion and generally parallel. The height of the chamber is dimensioned to exceed the wrap diameter of a set of a twisted pair of conductors. Adjacent chambers include a dielectric vertically disposed wall therebetween to provide resistance to compressive forces, and the twisted pairs therewithin exhibit a preferred twist on the order of 1j2 to 1 inch lay length. For cable lengths of at least 1000 feet, the cable is characterized by an attenuation and NEXT loss which exceed the Category 5 requirements of EIA TSB-36.
Kilpatrick Jerry Blanton
Mcneill David Brian
Smart & Biggar
The Whitaker Corporation
LandOfFree
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