WO1999017406A1 - Fiche modulaire comportant une barre de charge pour la reduction de la diaphonie - Google Patents

Fiche modulaire comportant une barre de charge pour la reduction de la diaphonie Download PDF

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Publication number
WO1999017406A1
WO1999017406A1 PCT/US1998/019738 US9819738W WO9917406A1 WO 1999017406 A1 WO1999017406 A1 WO 1999017406A1 US 9819738 W US9819738 W US 9819738W WO 9917406 A1 WO9917406 A1 WO 9917406A1
Authority
WO
WIPO (PCT)
Prior art keywords
wires
grooves
electrical connector
crosstalk
load bar
Prior art date
Application number
PCT/US1998/019738
Other languages
English (en)
Inventor
Julian J. Ferry
Original Assignee
The Whitaker Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Whitaker Corporation filed Critical The Whitaker Corporation
Priority to AU94025/98A priority Critical patent/AU9402598A/en
Publication of WO1999017406A1 publication Critical patent/WO1999017406A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H01R13/6463—Means for preventing cross-talk using twisted pairs of wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • H01R13/6477—Impedance matching by variation of dielectric properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices
    • H01R24/64—Sliding engagements with one side only, e.g. modular jack coupling devices for high frequency, e.g. RJ 45

Definitions

  • the invention relates to a modular plug electrical connector having a wire organizer which reduces electrical crosstalk in the connector.
  • Crosstalk may be defined as stray energy which is coupled from one signal line onto an adjacent signal line by either capacitive or inductive coupling. This crosstalk results in signal noise which interferes with the purity of the signal being transmitted.
  • a commonly used telecommunications wiring system is unshielded twisted pair wiring wherein pairs of wires are twisted about each other. The wires in a twisted pair carry related signals and are thus known as signal pairs . Each of the wires in a signal pair carries an equal but opposite signal; that is, the wires carry signals of the same magnitude which are respectively positive and negative. Since these signals are equal but opposite, they generate fields that are equal but opposite. In a twisted pair these equal and opposite fields cancel each other. Thus, little or no crosstalk can occur between one twisted pair and an adjacent twisted pair.
  • Crosstalk in unshielded twisted pair wiring systems primarily arises in the electrical connectors which provide an interface between successive runs of cable in a system.
  • Industry standard electrical connectors for telecommunications systems include modular plugs and jacks. These connectors have terminals which are spaced closely together and parallel to each other, and this close and parallel arrangement is conducive to crosstalk between adjacent lines in different ones of the signal pairs.
  • the terminals in a modular plug are dedicated to specific ones of the twisted wires according to a known industry standard such as EIA/TIA- 568. Therefore, ends of the wires must be arranged in a closely spaced parallel sequence in the plug, and these parallel ends are also conducive to crosstalk.
  • U.S. Patent No. 5,571,035 discloses a modular plug electrical connector having a wire organizer, or load bar, which maintains the wires in an organized array in the connector in order to reduce crosstalk in the connector.
  • the load bar has upper and lower surfaces with grooves, and each of the grooves receives both wires of a respective signal pair.
  • This device increases the separation between wires of different signal pairs, thereby avoiding crosstalk which would otherwise occur between the wires of different signal pairs.
  • some crosstalk occurs between terminals in the modular plug.
  • crosstalk which occurs in the modular jack of a communications cable rises significantly at very high frequencies on the order of 200-300 MHz.
  • a problem to be solved is how to reduce crosstalk in a modular plug in order to improve overall crosstalk performance in a communications system.
  • the invention is a modular plug electrical connector for terminating a plurality of communications wires which are associated as signal pairs.
  • the electrical connector comprises a dielectric housing having a cavity and a load bar mountable in the cavity.
  • the load bar has opposite major surfaces with plural grooves m the major surfaces.
  • the modular plug is characterized m that each of the grooves is configured to receive one of the wires therein, and the grooves are arranged at respective spaced apart locations which are selected so as to reduce crosstalk m the electrical connector .
  • Fig. 1 is an isometric view of a modular plug connector and load bar according to the invention, showing wires arranged m the load bar and poised for insertion m the connector;
  • Fig. 2 is a cross-sectional view through the connector having the load bar and wires disposed therein;
  • Fig. 3 is an isometric view of the load bar and wires to be arranged m the load bar; and Fig. 4 is a cross-sectional view through the load bar taken along line 4-4 m Fig. 1.
  • FIG. 1 An electrical connector 10 of a type which is commonly referred to as a modular plug which is matable with a modular jack (not shown) for interconnecting a plurality of conductive wires 11 m a communications system.
  • the connector 10 as described herein is an eight position modular plug for use with an eight wire communications cable.
  • the invention can also be applied to other connectors which are terminable to different numbers of wires.
  • the wires 11 comprise pairs of wires which are twisted together, and each twisted pair is associated as a signal pair. Ends of the wires 11 are untwisted and arranged side-by-side for termination m the connector 10, and the side-by-side wires are assigned consecutive numbers 1-8 for individual reference.
  • wires 1-2 comprise a signal pair and wires 7-8 comprise a signal pair.
  • wires 4-5 comprise a signal pair, and wires 3-6, which flank the wires 4-5, also comprise a. signal pair. Due to the proximity of adjacent wires in this arrangement, some crosstalk will occur between adjacent wires 3 and 4 which are in different signal pairs, and some crosstalk will occur between adjacent wires 5 and 6 which are also in different signal pairs. According to the invention, compensating crosstalk is introduced in the wires in order to cancel the crosstalk which otherwise occurs.
  • the electrical connector 10 comprises a dielectric housing 12 which holds a plurality of terminals 13 , eight in the present example, that are arranged side-by-side in respective slots 14.
  • Each of the terminals 13 is dedicated to a respective one of the wires 1-8 in the communications cable.
  • the housing 12 has a wire-receiving end 15 and a cavity 16 which extends into the housing from the wire- receiving end. The cavity is open to the slots 14 at a wire termination end of the housing.
  • the terminals 13 Prior to termination of the wires in the connector, the terminals 13 are in raised positions in their respective slots 14 so that the wires 1-8 may be inserted into the cavity 16 and into respective positions in alignment with the terminals 13.
  • Each of the wires 1-8 comprises a conductive core which is surrounded by an insulative jacket. The terminals 13 are driven into the wires 1-8 by an appropriate tool so that the terminals pierce the insulative jacket and make electrical connection with the conductive core.
  • a load bar 20 is mountable in the cavity 16.
  • the load bar 20 is an insulative block having a pair of opposite major surfaces 22, 23 and a ' pair of opposite side surfaces 24, 25.
  • Each of the major surfaces 22, 23 defines a respective horizontal plane that extends laterally between the opposite side surfaces 24, 25, and extends longitudinally along the load bar.
  • the major surface 22 has a pair of parallel grooves 26, 27 that extend longitudinally along the load, bar, and the major surface 23 has a similar pair of parallel grooves 28, 29.
  • Each of the grooves 26, 27, 28, 29 is configured to receive a single one of the wires 1-8.
  • Each of the side surfaces 24, 25 has a concave shape that extends longitudinally to provide a channel.
  • the load bar 20 is dimensioned so that a twisted pair of wires can be accommodated in each of the channels between the side surfaces 24, 25 and respective boundary sidewalls 30, 31 of the cavity 16.
  • the grooves 26, 27, 28, 29 are spaced apart in an array that is selected to reduce crosstalk in the modular plug connector when selected ones of the wires are disposed in the grooves .
  • Each of the grooves receives a particular one of the wires 3-6.
  • the grooves 26 and 27 receive the wires 4 and 6, and the grooves 28 and 29 receive the wires 3 and 5.
  • each of the signal pairs 3-6 and 4-5 is split, with the wires in each of these signal pairs being disposed on respective opposite ones of the major surfaces 22, 23.
  • the wires in signal pair 3-6 are aligned in a vertical plane 36 which is perpendicular to the horizontal planes of the major surfaces 22, 23.
  • the wires in signal pair 4-5 are aligned in a diagonal plane 45 that intersects the vertical plane 36 so that the wires 4-5 are disposed on respective opposite sides of the vertical plane 36.
  • the wires 4-5 flank the wires 3-6, which arrangement is a reverse of the wire arrangement at the termination end of the connector wherein the wires in signal pair 3-6 flank the wires in signal pair 4-5.
  • This reverse arrangement of wires in the load bar provides crosstalk compensation in the modular plug connector.
  • some crosstalk is permitted to occur between wires 3 and 5 which are in adjacent grooves on the major surface 23, which crosstalk compensates for, or cancels, the crosstalk which occurs between wires 4 and 5 at the termination end of the connector.
  • some crosstalk is permitted to occur between wires 4 and 6 which are in adjacent grooves on the major surface 22, which crosstalk compensates for the crosstalk which occurs between wires 5 and 6 at the termination end of the connector.
  • additional compensating crosstalk can be enabled in the modular plug in order to cancel crosstalk which occurs in a modular jack or elsewhere in a communications system.
  • the length of the load bar 20 in a direction parallel to the wire axes can be selected to enable more or less compensating crosstalk as desired.
  • the invention provides a modular plug electrical connector with a simple wire organizer which serves to reduce crosstalk in the connector.
  • the wire organizer ensures that controlled lengths of selected wires in the connector will be disposed at controlled spaced-apart distances.
  • the spacing and arrangement of wires in the wire organizer can be selected to enable compensating crosstalk between signal pairs in order to cancel unavoidable crosstalk which occurs in a communications system. Enabling controlled amounts of compensating crosstalk permits the system to be tuned for optimum performance and results in a reduced net crosstalk for the system.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention concerne un connecteur électrique à fiche modulaire permettant de raccorder plusieurs câbles (1, 2, 3, 4, 5, 6, 7, 8) associés comme des paires de câbles d'interconnexion dans un système de communication, lequel connecteur comporte un logement diélectrique (12) présentant une cavité (16) et une barre de charge (20) pouvant être montée dans la cavité. La barre de charge comprend de grandes surfaces opposées (22, 23), lesquelles comportent plusieurs encoches (26, 27, 28, 29). Chacune des encoches est conçue de façon à recevoir un des câbles (3, 4, 5, 6). Les encoches sont disposées à des endroits correspondants, espacés les uns des autres, sélectionnés pour permettre de corriger la diaphonie dans le connecteur, ce qui réduit la diaphonie dans le connecteur et dans le système en général.
PCT/US1998/019738 1997-09-26 1998-09-22 Fiche modulaire comportant une barre de charge pour la reduction de la diaphonie WO1999017406A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU94025/98A AU9402598A (en) 1997-09-26 1998-09-22 Modular plug having load bar for crosstalk reduction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93903897A 1997-09-26 1997-09-26
US08/939,038 1997-09-26

Publications (1)

Publication Number Publication Date
WO1999017406A1 true WO1999017406A1 (fr) 1999-04-08

Family

ID=25472433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/019738 WO1999017406A1 (fr) 1997-09-26 1998-09-22 Fiche modulaire comportant une barre de charge pour la reduction de la diaphonie

Country Status (2)

Country Link
AU (1) AU9402598A (fr)
WO (1) WO1999017406A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348745A (en) * 1999-02-19 2000-10-11 Richard Weatherley Low cross talk data plug assembly
WO2001043239A1 (fr) * 1999-12-10 2001-06-14 Krone Gmbh Cable de raccordement avec fiche de raccordement electrique
EP1137122A2 (fr) * 2000-03-23 2001-09-26 Hirose Electric Co., Ltd. Prise modulaire et prise pour faisceau de câble
EP1188204A1 (fr) * 1999-05-27 2002-03-20 Stewart Connector Systems, Inc. Fiche electrique modulaire, ensembles fiche et cable comprenant cette fiche, et barre de charge et broche de borne pour cette fiche
EP1248329A1 (fr) * 2001-04-05 2002-10-09 Ortronics, Inc. Guide-fil pour connecteur de communication
JP2016146309A (ja) * 2015-01-29 2016-08-12 株式会社オートネットワーク技術研究所 通信用コネクタ
JP2017054667A (ja) * 2015-09-09 2017-03-16 株式会社オートネットワーク技術研究所 通信用コネクタ及び電線付き通信用コネクタ
EP3182530A1 (fr) * 2015-12-16 2017-06-21 Sullstar Technologies, Inc. Boîtier d'un connecteur électrique avec barre de charge externe amovible et son procédé d'utilisation
US10116082B2 (en) 2013-08-19 2018-10-30 Sullstar Technologies, Inc. Electrical connector with removable external load bar, and method of its use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001646A1 (fr) * 1984-08-30 1986-03-13 Amp Incorporated Procede d'assemblage de connecteurs et de cables electriques
WO1996013878A1 (fr) * 1994-10-31 1996-05-09 The Whitaker Corporation Soudage de fils distincts pour former un cable ruban monobloc destine a un connecteur performant
WO1996026556A1 (fr) * 1995-02-22 1996-08-29 Stewart Connector Systems, Inc. Ensemble cable et fiche modulaire pour radiofrequences
US5571035A (en) * 1994-10-31 1996-11-05 The Whitaker Corporation Divergent load bar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001646A1 (fr) * 1984-08-30 1986-03-13 Amp Incorporated Procede d'assemblage de connecteurs et de cables electriques
WO1996013878A1 (fr) * 1994-10-31 1996-05-09 The Whitaker Corporation Soudage de fils distincts pour former un cable ruban monobloc destine a un connecteur performant
US5571035A (en) * 1994-10-31 1996-11-05 The Whitaker Corporation Divergent load bar
WO1996026556A1 (fr) * 1995-02-22 1996-08-29 Stewart Connector Systems, Inc. Ensemble cable et fiche modulaire pour radiofrequences

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348745B (en) * 1999-02-19 2002-08-28 Richard Weatherley Plug assembly for data transmission and method of wiring same
GB2348745A (en) * 1999-02-19 2000-10-11 Richard Weatherley Low cross talk data plug assembly
US6558204B1 (en) 1999-02-19 2003-05-06 Richard Weatherley Plug assembly for data transmission and method of wiring same
EP1188204A4 (fr) * 1999-05-27 2002-10-30 Stewart Connector Systems Inc Fiche electrique modulaire, ensembles fiche et cable comprenant cette fiche, et barre de charge et broche de borne pour cette fiche
EP1188204A1 (fr) * 1999-05-27 2002-03-20 Stewart Connector Systems, Inc. Fiche electrique modulaire, ensembles fiche et cable comprenant cette fiche, et barre de charge et broche de borne pour cette fiche
US6793515B1 (en) 1999-12-10 2004-09-21 Krone Gmbh Connecting cable comprising an electric plug-and-socket connection
WO2001043239A1 (fr) * 1999-12-10 2001-06-14 Krone Gmbh Cable de raccordement avec fiche de raccordement electrique
AU778891B2 (en) * 1999-12-10 2004-12-23 Adc Gmbh Connecting cable comprising an electric plug-and-socket connection
USRE41206E1 (en) 1999-12-10 2010-04-06 Adc Gmbh Connecting cable comprising an electric plug-and-socket connection
EP1137122A3 (fr) * 2000-03-23 2002-01-23 Hirose Electric Co., Ltd. Prise modulaire et prise pour faisceau de câble
EP1137122A2 (fr) * 2000-03-23 2001-09-26 Hirose Electric Co., Ltd. Prise modulaire et prise pour faisceau de câble
US6729901B2 (en) 2000-09-29 2004-05-04 Ortronics, Inc. Wire guide sled hardware for communication plug
EP1248329A1 (fr) * 2001-04-05 2002-10-09 Ortronics, Inc. Guide-fil pour connecteur de communication
US10116082B2 (en) 2013-08-19 2018-10-30 Sullstar Technologies, Inc. Electrical connector with removable external load bar, and method of its use
US10573990B2 (en) 2013-08-19 2020-02-25 Sullstar Technologies, Inc. Electrical connector with external load bar, and method of its use
US11146014B2 (en) 2013-08-19 2021-10-12 Platinum Tools, Llc Electrical connector with external load bar, and method of its use
US11742609B2 (en) 2013-08-19 2023-08-29 Nsi-Lynn Electronics, Llc Electrical connector with external load bar, and method of its use
JP2016146309A (ja) * 2015-01-29 2016-08-12 株式会社オートネットワーク技術研究所 通信用コネクタ
JP2017054667A (ja) * 2015-09-09 2017-03-16 株式会社オートネットワーク技術研究所 通信用コネクタ及び電線付き通信用コネクタ
WO2017043435A1 (fr) * 2015-09-09 2017-03-16 株式会社オートネットワーク技術研究所 Connecteur de communication, et connecteur de communication comprenant un câble électrique
US10367306B2 (en) 2015-09-09 2019-07-30 Autonetworks Technologies, Ltd. Communication connector and communication connector with wires
EP3182530A1 (fr) * 2015-12-16 2017-06-21 Sullstar Technologies, Inc. Boîtier d'un connecteur électrique avec barre de charge externe amovible et son procédé d'utilisation
EP3267535A1 (fr) * 2015-12-16 2018-01-10 Sullstar Technologies, Inc. Connecteur électrique et son procédé de preparation

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Publication number Publication date
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