EP1080518A1 - Ensemble de paires de contacts pour compenser la paradiaphonie, destine a une connexion electrique enfichable - Google Patents

Ensemble de paires de contacts pour compenser la paradiaphonie, destine a une connexion electrique enfichable

Info

Publication number
EP1080518A1
EP1080518A1 EP99924976A EP99924976A EP1080518A1 EP 1080518 A1 EP1080518 A1 EP 1080518A1 EP 99924976 A EP99924976 A EP 99924976A EP 99924976 A EP99924976 A EP 99924976A EP 1080518 A1 EP1080518 A1 EP 1080518A1
Authority
EP
European Patent Office
Prior art keywords
contacts
area
contact
arrangement according
crosstalk
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP99924976A
Other languages
German (de)
English (en)
Other versions
EP1080518B1 (fr
Inventor
Michael Gwiazdowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADC GmbH
Original Assignee
Krone GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7868405&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1080518(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Krone GmbH filed Critical Krone GmbH
Priority to SI9930468T priority Critical patent/SI1080518T1/xx
Publication of EP1080518A1 publication Critical patent/EP1080518A1/fr
Application granted granted Critical
Publication of EP1080518B1 publication Critical patent/EP1080518B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01R13/646—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
    • H01R13/6467—Means for preventing cross-talk by cross-over of signal conductors
    • 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
    • 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
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/941—Crosstalk suppression

Definitions

  • the invention relates to an arrangement of contact pairs for compensation of the near crosstalk for an electrical plug connection
  • a contact pair Due to a magnetic and electrical coupling between two contact pairs, a contact pair induces a current in adjacent contact pairs or influences electrical charges, so that crosstalk occurs. To avoid the near crosstalk, the contact pairs can be arranged very far apart or a shield can be arranged between the contact pairs. However, if the contact pairs have to be arranged very close to one another in terms of design, the measures described above cannot be carried out and the near crosstalk must be compensated for.
  • RJ-45 connector The most widespread electrical connector for symmetrical data cables is the RJ-45 connector, which is known in various embodiments depending on the technical requirements.
  • Known RJ-45 Category 5 connectors for example, have a cross-talk attenuation of> 40 dB at 100 MHz transmission frequency between all four contact pairs. Due to the unfavorable contact assignment on the RJ-45, there is increased crosstalk due to the design, particularly with the plug between the two pairs 3, 6 and 4, 5, due to their nested arrangement, which makes use at high
  • EP 0 692 884 A1 Compensation through direct additional capacities for the next but one contact can be found in EP 0 692 884 A1.
  • EP 0 598 192 A1 describes a solution to the compensation by means of elongated and multi-angled contacts at its intersection, where the compensation behind the intersection is generated by the further contacts and insulation displacement terminals.
  • the invention is therefore based on the technical problem of creating an arrangement of contact pairs for an electrical plug connection with at least two nested contact pairs, in particular for an RJ-45 plug connection, for higher transmission frequencies with adequate crosstalk attenuation.
  • Another technical problem is the creation of an electrical connector for high transmission frequencies, which is downward compatible with the known Kat 5 connectors.
  • the crossing point is placed directly behind the contact area, which causes a minimal distance between the crosstalk zone and the compensation zone, so that
  • the contacts of the nested contact pairs are guided in parallel in the contact area, the inner contacts being directed in opposite directions to the outer contacts, which causes an inductive decoupling of the non-current-carrying partial areas of the inner contacts. Then the internal contacts are crossed and bent 180 ° and again parallel to the first section. This has the effect that the crosstalk generated changes its sign immediately behind the crossing point and compensation of the crosstalk from the contact area takes place.
  • the contacts of the nested contact pairs are then bent at an acute angle and guided parallel to a connection area.
  • the inner contacts in front of the connection area are again bent away from the outer contacts and again parallel to the outer contacts.
  • the latter are guided in the contact area in the same direction parallel to the inner contacts, bent into a decoupled position and then guided parallel to the contacts of the nested contact pairs to the connection area.
  • the crosstalk in the plug is specifically selected to be larger and then compensated again, the compensation zone preferably being divided into two sub-areas, namely a compensation zone in the socket and a compensation zone at the connection area of the plug, for which purpose the internal contacts are also crossed.
  • the inner contacts in the compensation zone of the connector are designed with a lower line impedance than in the crosstalk zone, so that a predominantly capacitive coupling takes place between the contacts of the interleaved contact pairs, which mainly accounts for the capacitive coupling in the area of the connector transition / Socket compensates where the non-current-carrying parts of the contacts of the socket and plug have a capacitive effect.
  • the outer non-nested contact pairs are guided parallel to one another, and these are guided in opposite directions in the contact area for decoupling from the contacts of the nested contact pairs.
  • the outer contacts For better decoupling from the contacts of the socket, the outer contacts have an indentation following the contact area.
  • FIG. 1 shows a contact arrangement of an RJ-45 plug connection (state of the art 2) shows a representation of the couplings occurring for an arrangement according to FIG. 1
  • FIG. 3 shows a perspective view of the nested contact pairs for an RJ-45 socket
  • FIG. 4 shows a side view of the arrangement according to FIG. 3,
  • FIG. 5 is a side view of the four contact pairs for an RJ-45 socket
  • Fig. 6 is a schematic representation of the nested
  • FIG. 11 shows a first perspective view of the contact arrangement according to FIG.
  • FIG. 12 a second perspective view of the contact arrangement according to FIG. 5,
  • Fig. 5, Fig. 14 a first perspective view of the contact arrangement
  • FIG. 1 a the pin assignment for an RJ-45 connector is shown.
  • the RJ-45 connector comprises four contact pairs 1, 2; 3, 6; 4, 5; 7, 8.
  • the associated contacts of a contact pair are not always directly adjacent to one another, but the two middle contact pairs 3, 6 and 4, 5 are nested one inside the other, which results in particularly strong crosstalk.
  • With four contact pairs there are six couplings between the Contact pairs, which are shown schematically in Figure 2, the line thickness symbolizing the strength of the coupling.
  • FIG. 4 represents a side view of FIG. 3.
  • the contacts 3 and 6 of the spread pair are parallel and completely identical, go from the contact area 10 in a first section 31, 61 to lings, go into a straight part 33, 63 after a bend 32, 62 and end on the right in one Connection area 90, which can be a circuit board, for example.
  • the contacts 4 and 5 of the middle pair run in the contact area 41, 51 parallel to the contacts 3 and 6 and go away in the opposite direction to the right and make a bend of 180 ° 42, 52, where the cross both contacts, ie seen from above, contact 4 takes the place of contact 5 and contact 5 that of contact 4.
  • the two contacts 4 and 5 run parallel to one another and parallel to the contact sections 31 and 61.
  • the contacts 4 and 5 lie in the same plane as 3 and 6.
  • the compensation begins immediately behind the intersection 11 or bend 42, 52 due to the parallelism of the contact areas 31, 61, 43, 53 and 33, 63, 45, 55.
  • the two contacts 4 and 5 leave with a bend 46 , 56 the compensation zone and end decoupled in the connection area 90.
  • the contact sections 31, 32 and 41, 42, 43, 44 and 51, 52, 53, 54 and 61, 62 are movable, while the others are firmly in the socket.
  • the contacts 203, 206; 204, 205 of the nested contact pairs shown in a plan view.
  • the contacts 203, 204, 205, 206 run completely parallel to one another. Only at the connection area 214 are the contacts 204, 205 and 203, 206 pulled apart, so that in the connection area 214 they are largely decoupled due to the spacing of the contact pairs. As can be seen in FIG. 6, this can be achieved by angling the contact pairs in the opposite direction, or else by simply angling the contact pair.
  • the mode of operation of the contact arrangement of the improved plug is to limit the large tolerances in crosstalk that have been customary up to now and to set the crosstalk to a lower tolerance value that still fulfills Cat 5 and is matched to the compensation in the socket.
  • the crosstalk is set to a defined value by means of contacts firmly inserted in a plastic body, which are used to generate the necessary
  • Crosstalk run in parallel.
  • the contacts are first pulled apart to clearly delimit the crosstalk zone and the wires are assembled in an almost decoupled position. Undefined positions of the wires as a result of dissolved twisting hardly influence the crosstalk values.
  • the crosstalk in the plug between the contact pairs 203, 206 and 204, 205 is specifically selected to be larger and corrected again by a subsequent compensation.
  • the compensation is chosen so that the connector provides the necessary values for Cat 5 again.
  • the entire connector behaves like a crosstalk zone with two compensation zones, namely one in the socket and one in the plug, which provides a significantly better compensation gain compared to a single compensation, which is subsequently based on a simple arrangement of two coupled double lines is explained in Fig.7a - c.
  • the near crosstalk between two parallel homogeneous lines according to Fig.7a increases up to a certain limit with 20 dB / dec, thus behaves like a high-pass filter of the first order. If this crosstalk is compensated for, for example, by a second line section according to FIG. 7b, a line pair being crossed for this purpose, a limit curve is obtained for the
  • Proximity crosstalk with optimal adjustment which increases with 40 dB / dec.
  • This limit curve is clearly explained by the average distance d between the crosstalk and compensation zone, so that the signal running over the compensation zone has a transit time that is twice the distance d.
  • a distance of d ⁇ / 4 already causes an additional phase reversal because of the double path length, so that in this case the resulting crosstalk is twice as large as that of the uncompensated crosstalk zone.
  • a closer look leads to the result that a gain with such compensation is only given for a distance d ⁇ / 12.
  • the compensation area is divided into two equal parts and these are placed in front of and behind the crosstalk area, an arrangement according to FIG. 7c is obtained.
  • the division results in two compensation signals, the mean transit time of which is identical to the average transit time in the crosstalk zone. Thus there is no longer a frequency-dependent phase shift, the phase difference between the crosstalk signal and the
  • Compensation signal remains 180 °, assuming a symmetrical structure. This gives you significantly better values for the compensation gain.
  • the limit frequency at which the compensation becomes ineffective is twice as high as with the single compensation.
  • FIG. 9 shows the contact arrangement for the inner contacts 203, 204, 205, 206.
  • the two inner contacts 204, 205 are of crossed design, the cross-talk zone 211 being to the right of the crossing point 212 and to the left of the Crossing point 212 lies the compensation zone 213, which forms the first part of the compensation, while the second compensation area lies in the socket.
  • the contacts 203, 204, 205, 206 have a low line impedance in the compensation zone 213 compared to the crosstalk zone 211, which is different, for example
  • Diameter or shape of the contacts is realized.
  • the two contact pairs in the compensation zone have a predominantly capacitive coupling. This compensates for the majority of the capacitive coupling in the area of the plug / socket transition, where the non-current-carrying contact ends of the plug and especially the socket have a capacitive effect.
  • This measure also gives the connector the necessary good values for long distance crosstalk for this frequency range.
  • the measure with the different line impedances can also be placed or divided behind the crossing in the socket. In terms of manufacturing technology, however, it is easier to realize these capacities in the stamped contacts in the plug than in the socket, whose contacts are made of wire.
  • the complete contact arrangement for the plug is shown in FIG. 10.
  • the outer contacts in the contact area 210 run in opposite directions. The current flows clearly from top to bottom in the outer contacts and from bottom to top in the inner contacts. All contacts are designed with radii at their contact ends in order to improve contacting with the mating contacts of the socket.
  • the outer contacts 201, 202, 207, 208 have indentations 215 immediately behind the contact area 210, which serve for better decoupling from the contacts of the socket.
  • connection area 214 The continuation of the outer contacts 201, 202, 207, 208 from the contact area 210 to the connection area 214 takes place parallel to the inner contacts 203, 206, 204, 205 in a different plane in such a way that a decoupling takes place between the inner and outer contacts.
  • the cable connections in the connection area are made in pairs and spatially separated from one another by a matrix-like 2 x 2 arrangement, see above that cable influences due to undefined twisting are low.
  • the contact arrangement for a socket with a printed circuit board 91 and the assembled insulation displacement contacts 92 is shown in different perspective views.
  • the contacts are not installed, i.e. without socket body. If the contact set is installed in a socket body, not shown, the eight contacts are parallel and under the necessary preload.
  • the solder eyes on the circuit board for contacts 1, 2 and 4, 5 and 7, 8 are offset in order to maintain the necessary minimum distance for the creepage distances.
  • the contact arrangement for the plug is shown in perspective, the contacts 201-208 being formed in the connection area 214 with penetrating connections 216.
  • the contacts 203-206 of the two nested contact pairs are in the
  • Compensation zone 213 is formed in a planar manner in order to reduce the line impedance in comparison to the crosstalk zone 211. Furthermore, contacts 201-208 are formed in the contact area 210 with hooks 217, which are used for fastening in a plug body, not shown.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

L'invention concerne un ensemble de paires de contacts (1, 2; 3, 6; 4, 5; 7, 8; 201, 202; 203, 206; 204, 205; 207, 208) destiné à une connexion électrique enfichable, notamment à une connexion enfichable RJ-45, pour compenser la paradiaphonie, ledit ensemble comprenant des paires de contact imbriquées les unes dans les autres. Pour assurer la compensation, les contacts (4, 5) sont croisés, le point de croisement (11) étant situé dans la partie élastique des contacts (1, 2; 3, 6; 4, 5; 7, 8) de la douille.
EP99924976A 1998-05-20 1999-05-12 Ensemble de paires de contacts pour compenser la paradiaphonie, destine a une connexion electrique enfichable Expired - Lifetime EP1080518B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9930468T SI1080518T1 (en) 1998-05-20 1999-05-12 Contact pair arrangement for an electric plug-and-socket connection in order to compensate near-end crosstalk

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19822630A DE19822630C1 (de) 1998-05-20 1998-05-20 Anordnung von Kontaktpaaren zur Kompensation des Nahnebensprechens für eine elektrische Steckverbindung
DE19822630 1998-05-20
PCT/EP1999/003337 WO1999060671A1 (fr) 1998-05-20 1999-05-12 Ensemble de paires de contacts pour compenser la paradiaphonie, destine a une connexion electrique enfichable

Publications (2)

Publication Number Publication Date
EP1080518A1 true EP1080518A1 (fr) 2001-03-07
EP1080518B1 EP1080518B1 (fr) 2003-10-22

Family

ID=7868405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99924976A Expired - Lifetime EP1080518B1 (fr) 1998-05-20 1999-05-12 Ensemble de paires de contacts pour compenser la paradiaphonie, destine a une connexion electrique enfichable

Country Status (34)

Country Link
US (2) US6120330A (fr)
EP (1) EP1080518B1 (fr)
JP (1) JP2002516475A (fr)
KR (1) KR100623213B1 (fr)
CN (1) CN1169264C (fr)
AR (1) AR033937A1 (fr)
AT (1) ATE252776T1 (fr)
AU (1) AU746885B2 (fr)
BG (1) BG64015B1 (fr)
BR (1) BR9910608A (fr)
CA (1) CA2331623A1 (fr)
CZ (1) CZ299826B6 (fr)
DE (2) DE19822630C1 (fr)
ES (1) ES2209442T3 (fr)
HK (1) HK1038648A1 (fr)
HR (1) HRP20000796B1 (fr)
HU (1) HU224083B1 (fr)
ID (1) ID26813A (fr)
IL (1) IL139509A (fr)
MX (1) MXPA00011269A (fr)
MY (1) MY124420A (fr)
NO (1) NO318717B1 (fr)
NZ (1) NZ507944A (fr)
PL (1) PL197490B1 (fr)
PT (1) PT1080518E (fr)
RU (1) RU2217848C2 (fr)
SA (1) SA99200137B1 (fr)
SK (1) SK286693B6 (fr)
TR (1) TR200003400T2 (fr)
TW (1) TW476171B (fr)
UA (1) UA58592C2 (fr)
WO (1) WO1999060671A1 (fr)
YU (1) YU49373B (fr)
ZA (1) ZA200006510B (fr)

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ES2209442T3 (es) 2004-06-16
SK17032000A3 (sk) 2002-01-07
YU71300A (sh) 2002-09-19
ID26813A (id) 2001-02-08
CA2331623A1 (fr) 1999-11-25
JP2002516475A (ja) 2002-06-04
DE19822630C1 (de) 2000-09-07
US6120330A (en) 2000-09-19
CN1169264C (zh) 2004-09-29
NZ507944A (en) 2002-08-28
PL344290A1 (en) 2001-10-22
NO20005726L (no) 2001-01-16
SA99200137B1 (ar) 2006-05-20
NO20005726D0 (no) 2000-11-13
MY124420A (en) 2006-06-30
US6319069B1 (en) 2001-11-20
CN1301419A (zh) 2001-06-27
HUP0105009A2 (hu) 2002-04-29
TR200003400T2 (tr) 2001-03-21
AU746885B2 (en) 2002-05-02
AR033937A1 (es) 2004-01-21
IL139509A0 (en) 2001-11-25
ZA200006510B (en) 2001-06-04
PT1080518E (pt) 2004-02-27
CZ20004283A3 (cs) 2002-01-16
UA58592C2 (uk) 2003-08-15
NO318717B1 (no) 2005-05-02
HRP20000796A2 (en) 2001-06-30
HU224083B1 (hu) 2005-05-30
TW476171B (en) 2002-02-11
DE59907462D1 (de) 2003-11-27
MXPA00011269A (es) 2003-04-22
HK1038648A1 (en) 2002-03-22
AU4143399A (en) 1999-12-06
KR20010043701A (ko) 2001-05-25
IL139509A (en) 2004-09-27
RU2217848C2 (ru) 2003-11-27
CZ299826B6 (cs) 2008-12-03
HUP0105009A3 (en) 2003-07-28
PL197490B1 (pl) 2008-04-30
YU49373B (sh) 2005-09-19
BR9910608A (pt) 2001-01-09
BG64015B1 (bg) 2003-09-30
WO1999060671A1 (fr) 1999-11-25
HRP20000796B1 (en) 2009-06-30
SK286693B6 (sk) 2009-03-05
ATE252776T1 (de) 2003-11-15
KR100623213B1 (ko) 2006-09-12
EP1080518B1 (fr) 2003-10-22
BG104947A (en) 2001-07-31

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