Title:
【発明の名称】高性能データケーブル
Document Type and Number:
Japanese Patent JP2002512420
Kind Code:
A
Abstract:
High performance data cables are provided that allows for future growth in networking speeds. The high performance data cables achieve this result while satisfying the dimensional requirements set by the EIA/TIA 568-A standards as well as fire performance safety requirements of the National Fire Protection Association (NFPA). High performance data cables of this invention achieve the above by controlling parameters that influence impedance performance, near-end crosstalk performance and attenuation. A separating filler material is used to maximize the pair-to-pair distance while maintaining an overall maximum outside diameter of 0.250''. This construction benefits crosstalk performance, as both electrical and magnetic field intensities are inversely related to distance and dielectric constant (crosstalk is made up of capacitative and inductive coupling, with inductive coupling becoming significant at frequencies above 50 MHz). Balancing between parameters that influence impedance, near-end crosstalk and attenuation performance by choice of materials and physical dimensions of the filler material, insulation material, jacket material and conductor, the overall performance of the data cable of this invention is achieved. A standard for the high performance data cables of this invention is also disclosed.
Inventors:
Mark E. Grandy
Edwin Dee Rain
Janet M. Rosenbaum
James Jay Pellster
Rune Toteland
Jim El. The Second Dickman
Marc W. White
David J. Week Horst
Timothy N. Berrelussmann
Edwin Dee Rain
Janet M. Rosenbaum
James Jay Pellster
Rune Toteland
Jim El. The Second Dickman
Marc W. White
David J. Week Horst
Timothy N. Berrelussmann
Application Number:
JP2000545157A
Publication Date:
April 23, 2002
Filing Date:
April 16, 1999
Export Citation:
Assignee:
Prest Light Wire Corporation
International Classes:
H01B7/18; H01B11/02; (IPC1-7): H01B11/02
Attorney, Agent or Firm:
Kimura Mitsuru (1 person outside)