EP0902501A1 - Anschlussmodul für Fernmeldekabel und Anschlusselement mit einem solchen Anschlussmodul - Google Patents

Anschlussmodul für Fernmeldekabel und Anschlusselement mit einem solchen Anschlussmodul Download PDF

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Publication number
EP0902501A1
EP0902501A1 EP98402181A EP98402181A EP0902501A1 EP 0902501 A1 EP0902501 A1 EP 0902501A1 EP 98402181 A EP98402181 A EP 98402181A EP 98402181 A EP98402181 A EP 98402181A EP 0902501 A1 EP0902501 A1 EP 0902501A1
Authority
EP
European Patent Office
Prior art keywords
contacts
group
contact
cable
connection module
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
EP98402181A
Other languages
English (en)
French (fr)
Other versions
EP0902501B1 (de
Inventor
Didier Lecomte
Paul De Win
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.)
Nexans SA
Original Assignee
Alcatel CIT SA
Alcatel SA
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 Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of EP0902501A1 publication Critical patent/EP0902501A1/de
Application granted granted Critical
Publication of EP0902501B1 publication Critical patent/EP0902501B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • 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
    • 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 module for connecting the wires of a cable. telecommunications to a terminal device, for example an adapter or a socket, for the transmission of communication signals for the benefit of a communicating device to which the organ is at least temporarily affected. More specifically, it relates to a module where the connection of the wires is carried out by means of so-called insulation displacement contacts. It also concerns the terminal members for cables which include such a module.
  • insulation displacement contacts to connect electrical wires individually insulated and in particular telecommunications cable wires is a proven connection technique.
  • Each contact consists of a conductive metal part with at least one slot, one end of which open is shaped so as to allow the insertion of the core of a wire electric transversely in the slot by pressure and partial elimination insulating sheath covering this wire.
  • the sinking of this soul in this slit entails its immobilization by pinching and an electrical connection of the soul with the room.
  • the part constituting the contact is electrically connected to a other conductive element of the member which comprises it with a view to serving the communicating device to which the organ is assigned, this other element is by example another conductive part, such as a connecting bar, of the member or a track on a printed circuit on which the part is mounted.
  • connection modules As is known, there is a strong incentive for the miniaturization of connection modules insofar as the communicating devices to which they are likely to be affected tend to miniaturize themselves, when possible.
  • connection modules for cables communication involves solving some type problems intended for such cables.
  • the communication cables allow digital signals to be transmitted at high bit rates, example of the order of 150 megabit / s and it is necessary that their recovery after transmission can be carried out in good conditions as required by the relevant standards.
  • telecommunications cables are most often intended for allow to establish several communication circuits and therefore several simultaneous transmissions between their two respective ends, the same circuit usually using at least one pair composed of two twisted wires of the cable or possibly a fourth corresponding to two pairs of wires twisted.
  • connection modules There is then a real risk of disruption of transmissions due to crosstalk, in particular at the level of a connection module where the wires of a cable operated in this way. This therefore leads the designers of connection modules to take precautions when positioning the insulation displacement contacts of a module with respect to each other and to provide recommendations for positioning the wires of the pairs or possibly a quarter of a telecommunication cable compared to insulation displacement contacts of the connection module to which they come respectively connect.
  • connection module for cable which is shown incorporated in a plug-type member comprising a standardized RJ45 interface module for connecting this unit to a communicating device not shown.
  • connection module for telecommunications, having improved transmission characteristics and more specifically a connection module comprising contacts identical insulation displacement insulators with wire holding slot (s), said slots being with wire insertion mouths opening on the same side with respect to the module for the individual connection of the wires of a cable.
  • the contacts are symmetrically divided into two groups, arranged in a V and each comprising an even number of contacts.
  • the contacts of a group are successively alternated along two axes of parallel alignment which define two parallel or quasi-parallel V with the corresponding alignment axes of the other group.
  • a contact and a contact immediately adjacent to the same group which are located on axes of different parallel alignment are positioned at a distance less than that separating two successive contacts located on the same alignment axis.
  • the contact of each group which is furthest from the plane of symmetry of the module is the one closest to the end of this module where the cable arrives.
  • the invention also provides a terminal organ for telecommunications cable. having the characteristic of comprising a module as mentioned above.
  • the invention. its characteristics and advantages are specified in the description which follows in conjunction with the figures mentioned below.
  • Figure 1 shows a perspective view of a terminal member for telecommunications cable comprising a connection module according to the invention.
  • Figure 2 shows a perspective view of the body of Figure 1 returned upside down and the connection module is partially dissociated.
  • Figure 3 shows a perspective view of the member of Figure 1 whose connection module is partially dissociated.
  • Figure 4 shows a bottom view of the insulating housing block for contacts of a connection module as shown in the figures mentioned above.
  • FIG. 5 presents a top view of the member presented in FIGS. 1 to 3.
  • FIG. 6 presents a left view of a member as presented on the Figures 1 to 3, whose housing block has been separated from the rest.
  • connection module for telecommunications cable presented in Figure 1 is here assumed to be incorporated in a member 1 intended to allow the transmission of electrical signals from a cable telecommunications 2 to a communicating device, not shown.
  • This communicating device includes for example one or more communication devices telecommunications and / or one or more computer devices capable of transmitting and / or receive signals via the telecommunications cable 2.
  • This cable is of the multi-wire type and it is assumed to consist of pairs or quarters planned to allow each the establishment of a circuit of different communication.
  • the member 1 is optionally incorporated into the device communicating to which it is associated, it can alternatively constitute an adapter or a socket for connecting the cable to the communicating device so removable.
  • connection member 1 is assumed to include a standardized RJ 45 female socket whose external container is referenced 3 and a connection module according to the invention, shown here mounted on the same support plate 4.
  • This support plate is for example a circuit board printed matter on which are provided conductive tracks, not illustrated, which allow interconnecting insulation displacement contacts 5, which can then be plugged in, carried by the connection module according to the invention and connection plugs 6 that the socket has. These contacts 5 and these plugs 6 are partially shown in Figure 2.
  • insulation displacement contacts are assumed to be made each at one end of a functionally individual busbar analogous to a conductive printed circuit track, each strip being immobilized in a determined position in the organ which comprises it.
  • these bars have the advantage of being able to be easily conformed and in particular folded as well as subject to need to allow the establishment of separate electrical connections from each other between the insulation displacement contacts that they are supposed to include in the case mentioned above and for example other contacts. These are for example those of an RJ45 socket, as in the example mentioned above.
  • the shapes and securing of bars are not shown here and will not be further developed to the extent that they are well known techniques of the skilled person.
  • the module of connection essentially comprises self-stripping metal contacts 5 and a wire guide block 16 of insulating material. The latter is arranged to allow the individual positioning of the wires 7 of the cable 2 connect each in a slot insulation displacement 8 of one of the contacts 5.
  • each contact 5 includes a tail of insertion 5A, which is for example intended to be electrically connected by welding to a conventional conductive tracks and not shown of the support plate 4. then assumed to be of the printed circuit board type.
  • Each contact 5, looking here supposed to be flat, comprises a slot 8 for holding the wire, here blind and opening to the opposite of the plug-in tail, the mouth of which is intended to cut so as to be able to at least partially eliminate part of the insulating sheath which is conventionally coated with a wire 7 of telecommunications cable 2.
  • the contacts 5, here provided identical and in even number, are divided into two groups of the same even number of contacts and according to a V-shaped arrangement, the position of the contacts of one group being symmetrical to those of the other group by with respect to a plane oriented perpendicular to the support plate and having the axis of symmetry XX 'of the V for trace at the level of this plate, like the at least partially shows Figures 1, 2, 3 and 5.
  • the contacts of a group are successively alternated along two axes of parallel alignment, or at least approximately parallel, referenced AA ', BB' for one of the groups and CC ', DD' for the other and which define two V with parallel or almost parallel branches in the plane of the support plate.
  • a contact of a group and an immediately adjacent contact of this group are therefore each aligned on a different one of the two parallel axes of alignment of the group.
  • This arrangement makes it possible to arrange the adjacent contacts of a group at a sufficient distance from each other by reducing the size of the module according to axis XX 'with respect to a solution where the adjacent contacts of a group would be aligned along the same axis.
  • the aligned contacts are distributed with identical spacings along their alignment axis regardless of which one alignment axes considered among those defined previously for the module.
  • the pitch PI between the slots 8 of two adjacent contacts located at the end of a group is less than the pitch PE between the slot 8 of that of these two contacts located the least at the end and the slot of the adjacent contact which is still located less at the end than he in the group that includes them.
  • the slot 8 of a contact 5 is here assumed in the alignment of the tail 5A of this contact, it has been assimilated in FIG. 4 the position of the slot of a contact with the position of the tail 5A of this contact which is aligned with it.
  • a greater distance is therefore provided between contacts of the same group with a step of two, the distance separating two successive contacts of the same alignment in a group, such as that between the contacts referenced 5 1 and 5 3 , being greater to that separating one of these contacts from an adjacent contact located on the parallel alignment, such as that between the contacts referenced 5 1 and 5 2 or that between the contacts referenced 5 2 and 5 3 .
  • the contacts of a group are paired, each pair comprising two adjacent contacts, such as 5 1 and 5 2 , which are each located on one of the two alignment axes specific to the group.
  • Two pairs of successive contacts from the same group such as the pairs of contacts 5 1 and 5 2 or 5 3 and 5 4 , having a common adjacent contact, such as 5 2 , which is offset differently with respect to the two contacts, such 5 1 and 5 3 , arranged on the same other alignment axis with which it is adjacent.
  • the part possibly facing this so-called common contact of one of these two adjacent contacts, ie here 5 3 is then smaller than that possibly facing it of the other, ie here 5 1 , with which said common adjacent contact is paired.
  • V of the two groups of contacts 5 makes it possible to penetrate the end of the telecommunications cable stripped of its sheath to free the wires to be connected at least up to the level of the V formed by the contacts 5, so as to introduce the wires into the slots of these contacts passing through the interior of the V, the point of development of the cable then being possibly and advantageously located inside the V.
  • the positions of the insulation displacement contacts 5 and more precisely those of their slots 8 in the connection module make it possible to carry out wiring where the wire portions of a pair have practically the same length from the point of development of the cable of which they are a part up to the contact in the slot of which each of the wires is individually inserted by force, the contacts for the two wires of a pair being for example the contacts 5 1 and 5 2 or the contacts 5 3 and 5 4 or one or the other symmetrical contact res of those mentioned above.
  • the lengths of the wire portions of pairs connected to contacts arranged parallel to the same group are likely to be very close in length insofar as it is possible to place the contacts aligned on the axes AA 'and DD' furthest from the axis of symmetry XX 'of the V closer to the expected point of development of the cable 2 and therefore of the end of the connection module at which this cable than those aligned on the more adjacent axes BB 'and CC'.
  • connection of the wires 7 of a cable to the insulation displacement contacts 5 of a connection module is facilitated by the presence an auxiliary wire guide block, such as that referenced 16 in FIGS. 1 to 3 and 5, 6.
  • This block is here assumed to be made of a rigid, electrically insulating material, here supposedly based on an isosceles trapezoidal shape, in which are formed individual passage ducts 9 for the contacts 5 and guide grooves 10 for each of the wires 7 of the cable to be connected.
  • the individual conduits of passage 9 which here has a cross section corresponding to that of a contact pass through the block in parallel and end up in the guide grooves 10, so that the contact is arranged transversely to the groove of guidance where it ends and for example perpendicular to the longitudinal axis of the groove if the latter is rectilinear as shown. It is of course possible to produce at least partially curved guide grooves.
  • the slot 8 of a contact opens in the groove 10 of a wire guide block 16 where this contact succeeds when the block is positioned against the support plate 4 where these contacts are positioned.
  • the depth of the grooves 10 is here determined by so as to allow the insertion of a wire to the holding position and by example at the bottom of the slot 8 of the contact 5 opening in this slot, when the wire guide block is in position against the support plate 4.
  • the positioning of the individual passage conduits 9 relative to the grooves 9 is a function of that of the contacts with respect to each other, it leads to this as the contacts of the same group which are aligned along two parallel axes are located either at the ends of the innermost grooves of the V for the group which includes them, that is the outermost of this V, two neighboring contacts of a group being located one towards the inside of the V in the groove where it terminates and the other outward.
  • the wire guide block has a hollow central zone ending in a opening 18 for passage of wire in the end wall of this block at the level of which the cable is likely to be introduced into the connection module.
  • the hollow central zone and the grooves 10 open on the other side of the block by report to the bottom of this block. This allows the introduction from above of a cable 2 in block 16 and the insertion from above of the wires 7 of this cable into the grooves 10 and in the slots 8 of the contacts 5 of the connection module housed in this block. It is therefore possible to use a usual connection tool, manual or machine-driven, to ensure the insertion of the wires into the slots with the type of wire guide block envisaged here.
  • connection module it is also possible to hold it in place, on a connection module according to the invention, a cable whose wires are inserted into the slots of the contacts of the module by means known to those skilled in the art and arranged for example at the level of a cover, not shown coming to cap the module or else of a housing in which is housed the member 1 equipped with the connection module here considered.
  • a cover or such a housing can also be made so known to those skilled in the art for constituting electromagnetic shielding.
  • insulation displacement contacts here supposed to be plans for reasons for simplification of the presentation and insofar as such a form of realization is often advantageous, can also be realized in a form slightly different and only planar with a certain approximation, as known to those skilled in the art, such as for example the contacts known insulation displacement devices with Z cross section.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
EP19980402181 1997-09-11 1998-09-03 Anschlussmodul für Fernmeldekabel und Anschlusselement mit einem solchen Anschlussmodul Expired - Lifetime EP0902501B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9711299 1997-09-11
FR9711299A FR2768266B1 (fr) 1997-09-11 1997-09-11 Module de connexion pour cable de telecommunications et organe terminal le comportant

Publications (2)

Publication Number Publication Date
EP0902501A1 true EP0902501A1 (de) 1999-03-17
EP0902501B1 EP0902501B1 (de) 2002-01-23

Family

ID=9510974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980402181 Expired - Lifetime EP0902501B1 (de) 1997-09-11 1998-09-03 Anschlussmodul für Fernmeldekabel und Anschlusselement mit einem solchen Anschlussmodul

Country Status (4)

Country Link
EP (1) EP0902501B1 (de)
DE (1) DE69803524T2 (de)
ES (1) ES2171005T3 (de)
FR (1) FR2768266B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5153911A (en) * 1992-01-13 1992-10-06 Tii Industries, Inc. Weatherproof telephone terminal apparatus
EP0700126A1 (de) * 1994-09-01 1996-03-06 BKS Kabel-Service AG Stecker für ein Kabel mit mehreren Adern
US5503572A (en) * 1994-05-17 1996-04-02 Mod-Tap Corporation Communications connectors
EP0782221A2 (de) * 1995-12-25 1997-07-02 Matsushita Electric Works, Ltd. Verbinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5153911A (en) * 1992-01-13 1992-10-06 Tii Industries, Inc. Weatherproof telephone terminal apparatus
US5503572A (en) * 1994-05-17 1996-04-02 Mod-Tap Corporation Communications connectors
EP0700126A1 (de) * 1994-09-01 1996-03-06 BKS Kabel-Service AG Stecker für ein Kabel mit mehreren Adern
EP0782221A2 (de) * 1995-12-25 1997-07-02 Matsushita Electric Works, Ltd. Verbinder

Also Published As

Publication number Publication date
EP0902501B1 (de) 2002-01-23
FR2768266A1 (fr) 1999-03-12
DE69803524D1 (de) 2002-03-14
DE69803524T2 (de) 2002-08-22
FR2768266B1 (fr) 1999-10-15
ES2171005T3 (es) 2002-08-16

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