Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Communication cable whose insulated conductors are parallelly-opposite-arraged into bundle

A technology for communication cables and insulated conductors, applied in communication cables, plastic/resin/wax insulators, cables with twisted strands/quad strands, etc., can solve the problem of reducing attenuation characteristics, signal transmission effects, synthetic foam The medium is easy to be crushed, etc.

Inactive Publication Date: 2003-09-24
COMMSCOPE INC
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem with such telecommunication cables made from conventional twisted pair assemblies is that crosstalk will occur between the twisted pairs of insulated conductors which will negatively affect the transmission of signals between those conductors
However, synthetic foam media is prone to crushing during mating and bundling
This crushing will increase the capacitance of the completed cable, lower the impedance of the cable, and thus reduce the attenuation characteristics, which is not desired

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Communication cable whose insulated conductors are parallelly-opposite-arraged into bundle
  • Communication cable whose insulated conductors are parallelly-opposite-arraged into bundle
  • Communication cable whose insulated conductors are parallelly-opposite-arraged into bundle

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] The performance of cables with oppositely twisted pairs and bundles compared to cables with oppositely twisted pairs and bundles was tested.

[0033] Both cables were tested, each with four twisted pairs of insulated conductors, and the specifications are given in Table 1.

[0034] feature

value

Conductor size

24 gauge

conductor material

American Wire Gauge Copper Wire

insulator material

3 pairs foam / skin PVC; 1 pair foam / skin PE

Insulator Thickness

0.007 inches

insulator coaxial capacitor

Fluorinated ethylene propylene min 52, max 57, polyethylene 61 (picofarads / ft)

cable length

328 feet

envelope material

PVC compound (rated for high pressure)

[0035] The twisted pairs of each cable are twisted in a counterclockwise direction with a twist length of 0.45 to 0.8 inches. One cable (cable 1) is bundled clockwise (i.e. twisted and bundled in opposite directions) with a 6" lay ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A communications cable comprises an elongate cable jacket having an internal cavity and a plurality of twisted pairs of insulated conductors disposed in the internal cavity of the cable jacket, each of the conductors being insulated with a polymeric layer. Each of the insulated conductors within each of the twisted pairs of conductors defines a twinning helix having a first rotative direction, and each of the twisted pairs defines a bunching helix having a second rotative direction, the second rotative direction being opposite that of the first rotative direction. In this configuration, the communications cable can provide acceptable crosstalk and attenuation performance, even with foamed insulators that have demonstrated unacceptable performance when twinned and bunched in the same rotative direction. <IMAGE>

Description

technical field [0001] The present invention relates to telecommunication cables, particularly telecommunication cables comprising at least one twisted pair of insulated conductors. Background technique [0002] Insulated conductors used in communication cables are typically twisted pairs of insulated conductors in which two insulated conductors are twisted or twisted together to form a pair of conductor families. A typical assembly of such communication cables includes twisted or multi-pairs of insulated conductors bundled together (eg further twisted and in some cases comprising a bundle of wires or cables) and housed within a cable jacket. This twisting and bundling of conductors facilitates cable installation and connection between insulated conductors. Twisted pair conductors are commonly used in network structures such as local area network (LAN) cables or wireless cables. [0003] A problem with such communication cables made from conventional twisted pair assemblie...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/04H01B11/00H01B11/06H01B13/00
CPCH01B11/005
Inventor M·帕特尔
Owner COMMSCOPE INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com