WO1997019499A1 - Jack modulaire a reduction amelioree de la diaphonie - Google Patents

Jack modulaire a reduction amelioree de la diaphonie Download PDF

Info

Publication number
WO1997019499A1
WO1997019499A1 PCT/IB1996/001228 IB9601228W WO9719499A1 WO 1997019499 A1 WO1997019499 A1 WO 1997019499A1 IB 9601228 W IB9601228 W IB 9601228W WO 9719499 A1 WO9719499 A1 WO 9719499A1
Authority
WO
WIPO (PCT)
Prior art keywords
contacts
plug
data connector
connector receptacle
plane
Prior art date
Application number
PCT/IB1996/001228
Other languages
English (en)
Inventor
Johannes Lambertus Van De Sandt
Lucas Soes
Jan Hendrik Ate Wiekamp
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
Publication of WO1997019499A1 publication Critical patent/WO1997019499A1/fr

Links

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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H01R13/7195—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with planar filters with openings for contacts
    • 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
    • H01R13/6464—Means for preventing cross-talk by adding capacitive elements
    • 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

  • This invention relates to data transmission connectors and in particular to features incorporable therein to reduce cross-talk between adjacent signal lines.
  • the modular jack receptacle has found wide spread current use and in order to fulfill the market requirements of the near future it is necessary to upgrade the performance of there products without effecting the arrangement or assignment of the contact interface.
  • the coupling distance in the jack is more or less fixed.
  • Cross-talk or coupling between adjacent signal contacts is dependant upon the signal frequency, the coupling area and the distance between the contacts.
  • cross-talk is the highest between the contacts of contact pair 3-6 and the adjacent pairs. This is because of the relatively large distance between the contacts 3 and 6 which results in these contacts tending to act as individual contacts rather than a contact pair, which ultimately increases the effects of the cross-talk coupling.
  • a data connector receptacle for connecting signal transmission lines to contacts of a mating plug comprising a housing having a plug receiving cavity in communication with a plug receiving opening for insertion of the mating plug into the plug receiving cavity and a plurality of contacts each having a plug engaging end extending into the plug receiving cavity to electrically engage the contacts of the mating plug, a mating end for electrically engaging the transmission line, and an intermediate section therebetween, where the intermediate sections of the plurality of contacts are generally aligned, the data receptacle being characterized in that a plurality of intermediate sections define a plane and at least two of the contacts include intermediate sections displaced from said plane.
  • a modular jack receptacle can be providing that meets Category 5 requirements and that jack can be upgraded by the addition of a capacitance module to Category 6 without other changes, thereby enabling a given base design to be utilized in both products.
  • the performance of the modular jack may be enhanced further by the inclusion of a capacitance module coupled to at least two of the contacts, whereby the speed of data signal transmission may be yet further increased.
  • the capacitance module provides additional capacitance to the product without direct capacitance coupling to the contacts. It is another advantage that all of the above may be provided in conjunction with a standard plug.
  • Figure 1 is an upper perspective view of a modular jack according to the present invention
  • Figure 2 is an upper perspective partially exploded view of the modular jack of Figure l;
  • Figure 3 is an upper side perspective view of the contacts incorporated into the connector of Figure 1;
  • Figure 4 is a schematic view of the capacitance coupling of the contacts of Figure 3;
  • Figure 5 is a schematic view of the capacitance coupling necessary to improve upon the contact arrangement of Figure 3;
  • Figure 6 is an upper perspective view of the contacts arranged as shown in Figure 3 and further including an additional capacitance module affixed thereto providing the enhanced capacitance as illustrated in Figure 5;
  • Figure 7 is an upper perspective view of the capacitance module shown in Figure 6;
  • Figure 8 is a lower perspective view of the capacitance module shown in Figure 6.
  • a data connector receptacle configured as a modular jack receptacle according to the present invention is shown generally at
  • the modular jack receptacle 10 includes a housing 12 having a plug receiving cavity 14 that is in communication with a plug receiving opening 16 for receiving a mating modular plug (not shown) .
  • the mating plug, plug receiving cavity 14 and plug receiving opening 16 are all specified in common standards and will not be described in detail herein.
  • the housing 12 includes an open upper portion 18 wherein a contact carrier body 20 is received.
  • the contact carrier body 20 includes a plurality of contacts 1-8 extending therefrom.
  • a capacitance module 22 may be further carried by the contact carrier 20.
  • Extending from the opposite side of the housing 12 from which the plug receiving opening 16 is formed are board mount anchors 24 for affixing the modular jack 10 to a printed circuit board. It is important to note that while the example presented herein is for PCB applications, the invention is not so limited.
  • the contact carrier 20 includes an overmoulded carrier body 26 wherein the contacts 1-8 are encased.
  • the carrier body 26 includes a pair of rails 28 that are slidably received within tracks 30 of the housing 12.
  • a comb portion 32 is provided for properly orienting the contacts 1-8 for engagement with contacts of the mating plug.
  • the carrier body 26 further includes an upper seat 34 wherein the optional capacitance module 22 may be received.
  • the seat 34 comprises a base 36 and three interconnected walls 38,40,42 that form a U- shaped partition wherein the capacitance module 22 is received.
  • the capacitance module 22 includes a capacitance plate 44 formed of upper conductive plates 46a-c separated from lower conductive plates 48a,b (best seen in Figure 8) that are disposed on the opposite side of an insulating plate 50.
  • a plurality of contacts 51,53,54,56,58 are provided for interconnecting with the respective contacts 1,3,4,6,8.
  • Other capacitance structures may be incorporated into the plate 44.
  • the contacts 1-8 of the modular jack receptacle 10 are shown.
  • Each of the contacts 1-8 include a respective mating end la-8a that are aligned in a row of reversely bent cantilever resilient arms, as is common for a connector of thi ⁇ type.
  • the contacts 1-8 further include a mating end lb-8b.
  • the mating end lb-8b are arranged and configured for mounting upon a printed circuit board. It is important to note that other mating end configurations may be accommodated. Between corresponding plug engaging ends la-8a and mating ends lb-8b are intermediate sections lc-8c.
  • the standard configuration for an 8-position modular jack utilizes contacts 1 and 2 as a signal pair, contacts 3 and 6 as another signal pair, contacts 4 and 5 as yet another signal pair and contacts 7 and 8 as still yet another signal pair.
  • the contacts of three of the signal pairs are adjacent each other while the contacts 3,6 of the remaining signal pair are spaced to individually fall between the other signal pairs.
  • the contacts 3,6 behave as essentially individual contacts as opposed to a pair. The result of this is that the adverse effects of the capacitive coupling such as cross-talk are most evident with respect to these contacts.
  • the plug engaging end la-8a of contacts 1,2,4,5,7,8 are interconnected to their intermediate sections by way of a relatively sharp bend ld,2d,4d,5d,7d,8d that are all essentially identical.
  • the intermediate sections lc,2c,4c,5c,7c,8c are all basically aligned and define a plane.
  • the contacts 3,6 of the second pair have their plug engaging end 3a,6a interconnected to their intermediate sections 3c,6c by a leg portion 3e,6e, the leg portion 3e,6e raises the intermediate section 3c,6c outside of the plane defined by the intermediate sections of the other pairs. This maximizes the separation.
  • This separation of intermediate sections provides increased ability to transmit signals at high frequency without the adverse effect of cross-talk.
  • All of the intermediate sections lc-8c are generally parallel to each other without any complicated cross-over or overlap therebetween.
  • FIG. 4 a schematic view of the capacitance coupling is shown.
  • the contacts 1-8 are shown having their basic polarization indicated where contacts 1,3,4,7 can be thought of as being positively polarized and contacts 2,5,6,8 as being negatively polarized to correspond to respective differential pair signal transmission lines (not shown) .
  • contact 3 is capacitively coupled to contacts 1 and 2 by way of capacitance c, and c 2 .
  • C] equal c 2 .
  • This is also the case with respect to the coupling of contact 6 to contacts 4,5 and 7,8 as is apparent from Figure 4. While the physical separation apparent therein is sufficient to reduce the capacitance coupling therebetween for meeting Category 5 requirements to satisfy near future applications, it may be desirable to further enhance the actual equalization of the relevant capacitance to meet next generation (Category 6) applications.
  • the capacitance module 22 includes upper capacitance plates 46a-c that are affixed to an upper surface 60 of an insulative plate 50.
  • contact 51 is connected to plate 46a
  • contact 54 is connected to plate 46b
  • contact 58 is connected to plate 46c.
  • These contacts 51,54,58 are further connected to respective intermediate sections lc,4c,8c of contacts 1,4,8. In order to affix the contacts to the respective intermediate sections, either a mechanical engagement or a welding may be used.
  • the contacts 51,53,54,56,58 are interconnected to their respective plate portions 46a-c and 48a,b by soldering at a foot portion 51a,53a,54a,56a,58a. It is also further apparent that the plates 48a,48b capacitive couple with at least one of the upper plates 46a,46c. The size and configuration of each of the plates 46a-c and 48a,b are selected based on the capacitance needed to provide the desired capacitance alignment in order to produce the no- cross-talk condition described above.
  • Figure 9 shows the process of creating a module 20 with an overmoulded housing encompassing a capacitance module.
  • a self contained capacitance module 22 is provided.
  • the plates 46a-c and 48a-b cooperate with each other, but do not cooperate with contacts 1-8 to provide the needed additional capacitance.
  • the capacitance module 22 may be received within the housing 12 in such a manner that some of the plates 46a-c may be exposed so that is necessary, active adjustment of the capacitance may occur in order to further enhance the performance of the connector. This could be accomplished by simple trimming of the metallic plates.
  • the capacitance module 22 is self contained, as described above, other orientations of the module 22 are possible including fitting the module between the place defined by contacts 1,2,4,5,7,8 and the contacts 3,6 are disposed therefrom, whereby the contacts 51,54,58 extending from one side of the module 22 and the contacts 53,56 extending from the other.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

Ce connecteur femelle (10) de transmission de données, destiné à connecter des lignes de transmission de signaux aux contacts d'une fiche d'emboîtement, comprend un boîtier (12) présentant une cavité (14) réceptrice d'une fiche mâle, laquelle cavité communique avec une ouverture (16) permettant la réception de ladite fiche dans ladite cavité (14), ainsi qu'une pluralité de contacts (1-8), généralement parallèles, possédant chacun une extrémité (1a-8a) entrant en contact avec la fiche mâle et s'étendant dans la cavité réceptrice (14) afin d'entrer en contact électrique avec les contacts de la fiche mâle, une extrémité de raccordement (1b-8b) destinée à entrer en contact électrique avec la ligne de transmission, et une section intermédiaire (1c-8c). Ce connecteur femelle (10) est caractérisé en ce qu'une pluralité de sections intermédiaires (1c, 2c, 4c, 5c, 7c, 8c) définissent un plan, en ce qu'au moins deux des contacts (3, 6) comprennent des sections intermédiaires (3c, 6c) situées hors de ce plan, et, si nécessaire, en ce qu'un module capacitif (22) peut être monté afin d'égaliser la capacité entre les contacts (1-8) et augmenter ainsi les performances du connecteur femelle (10).
PCT/IB1996/001228 1995-11-17 1996-11-14 Jack modulaire a reduction amelioree de la diaphonie WO1997019499A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9523588.3A GB9523588D0 (en) 1995-11-17 1995-11-17 Modular jack having reduced cross-talk enhancement
GB9523588.3 1995-11-17

Publications (1)

Publication Number Publication Date
WO1997019499A1 true WO1997019499A1 (fr) 1997-05-29

Family

ID=10784077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1996/001228 WO1997019499A1 (fr) 1995-11-17 1996-11-14 Jack modulaire a reduction amelioree de la diaphonie

Country Status (2)

Country Link
GB (1) GB9523588D0 (fr)
WO (1) WO1997019499A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0895304A2 (fr) * 1997-08-01 1999-02-03 Lucent Technologies Inc. Connecteur jack de communication à haute fréquence
EP0944134A1 (fr) * 1998-03-19 1999-09-22 Gilles Cassagne Elément permettant la réalisation des montages d'essais électriques ou électroniques
WO1999060671A1 (fr) * 1998-05-20 1999-11-25 Krone Gmbh Ensemble de paires de contacts pour compenser la paradiaphonie, destine a une connexion electrique enfichable
EP0969569A2 (fr) * 1998-06-05 2000-01-05 Molex Incorporated Correction de diaphonie pour connecteurs électriques
EP1014514A2 (fr) * 1998-12-21 2000-06-28 Thomas & Betts International, Inc. Connecteur modulaire filtré
EP1018789A1 (fr) * 1998-12-28 2000-07-12 Lucent Technologies Inc. Connecteur de communication évolutif
EP1111731A1 (fr) * 1999-12-22 2001-06-27 Fridolin Alois Frech Plaque de guidage pour conducteurs
EP1126562A1 (fr) * 1999-12-22 2001-08-22 Fridolin Alois Frech Plateau de guidage conducteur
US6302741B1 (en) 1998-10-29 2001-10-16 Molex Incorporated Modular connector with DC decoupling and filtering
WO2001080376A1 (fr) * 2000-04-14 2001-10-25 Tyco Electronics Corporation Connecteur electrique destine a reduire la diaphonie
DE10211603C1 (de) * 2002-03-12 2003-10-02 Ackermann Albert Gmbh Co Elektrischer Steckverbinder für die Datentechnik
CN108616011A (zh) * 2018-04-23 2018-10-02 温州普嘉帆电子有限公司 一种网线接口

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271678A (en) * 1993-12-03 1994-04-20 Itt Ind Ltd Electrical connector with reduced crosstalk
EP0603667A2 (fr) * 1992-12-23 1994-06-29 Panduit Corp. Connecteur de communication avec condensateur multicouche
EP0649194A1 (fr) * 1993-10-05 1995-04-19 Thomas & Betts Corporation Connecteur électrique à diaphonie réduite
EP0674364A1 (fr) * 1994-03-26 1995-09-27 Molex Incorporated Connecteur de type jack modulaire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603667A2 (fr) * 1992-12-23 1994-06-29 Panduit Corp. Connecteur de communication avec condensateur multicouche
EP0649194A1 (fr) * 1993-10-05 1995-04-19 Thomas & Betts Corporation Connecteur électrique à diaphonie réduite
GB2271678A (en) * 1993-12-03 1994-04-20 Itt Ind Ltd Electrical connector with reduced crosstalk
EP0674364A1 (fr) * 1994-03-26 1995-09-27 Molex Incorporated Connecteur de type jack modulaire

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAKASHI TAMAKI: "MODULAR CONNECTORS SAFEGUARD AGAINST EMI", JEE JOURNAL OF ELECTRONIC ENGINEERING, vol. 29, no. 309, 1 September 1992 (1992-09-01), pages 60 - 63, XP000310066 *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0895304A2 (fr) * 1997-08-01 1999-02-03 Lucent Technologies Inc. Connecteur jack de communication à haute fréquence
EP0895304A3 (fr) * 1997-08-01 2001-09-26 Lucent Technologies Inc. Connecteur jack de communication à haute fréquence
EP0944134A1 (fr) * 1998-03-19 1999-09-22 Gilles Cassagne Elément permettant la réalisation des montages d'essais électriques ou électroniques
FR2776463A1 (fr) * 1998-03-19 1999-09-24 Gilles Cassagne Element permettant la realisation des montages d'essais electriques ou electroniques
US6336817B1 (en) 1998-03-19 2002-01-08 Gilles Cassagne Element enabling electrical or electronic test assemblies to be achieved
WO1999060671A1 (fr) * 1998-05-20 1999-11-25 Krone Gmbh Ensemble de paires de contacts pour compenser la paradiaphonie, destine a une connexion electrique enfichable
HRP20000796B1 (en) * 1998-05-20 2009-06-30 Krone Gmbh Contact pair arrangement for an electric plug-and socket connection in order to compensate near-end crosstalk
US6120330A (en) * 1998-05-20 2000-09-19 Krone Gmbh Arrangement of contact pairs for compensating near-end crosstalk for an electric patch plug
EP0969569A2 (fr) * 1998-06-05 2000-01-05 Molex Incorporated Correction de diaphonie pour connecteurs électriques
EP0969569A3 (fr) * 1998-06-05 2000-05-24 Molex Incorporated Correction de diaphonie pour connecteurs électriques
AU751906B2 (en) * 1998-06-05 2002-08-29 Molex Incorporated Crosstalk correction in electrical connectors
US6302741B1 (en) 1998-10-29 2001-10-16 Molex Incorporated Modular connector with DC decoupling and filtering
EP1014514A3 (fr) * 1998-12-21 2002-05-15 Thomas & Betts International, Inc. Connecteur modulaire filtré
EP1014514A2 (fr) * 1998-12-21 2000-06-28 Thomas & Betts International, Inc. Connecteur modulaire filtré
EP1018789A1 (fr) * 1998-12-28 2000-07-12 Lucent Technologies Inc. Connecteur de communication évolutif
AU752665B2 (en) * 1998-12-28 2002-09-26 Avaya Technology Corp. Upgradeable communication connector
EP1126562A1 (fr) * 1999-12-22 2001-08-22 Fridolin Alois Frech Plateau de guidage conducteur
EP1111731A1 (fr) * 1999-12-22 2001-06-27 Fridolin Alois Frech Plaque de guidage pour conducteurs
WO2001080376A1 (fr) * 2000-04-14 2001-10-25 Tyco Electronics Corporation Connecteur electrique destine a reduire la diaphonie
DE10211603C1 (de) * 2002-03-12 2003-10-02 Ackermann Albert Gmbh Co Elektrischer Steckverbinder für die Datentechnik
US6932655B2 (en) 2002-03-12 2005-08-23 Novar Gmbh Electrical plug connector for information technology
CN108616011A (zh) * 2018-04-23 2018-10-02 温州普嘉帆电子有限公司 一种网线接口
CN108616011B (zh) * 2018-04-23 2019-06-28 温州普嘉帆电子有限公司 一种网线接口

Also Published As

Publication number Publication date
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