EP0595304B1 - Dispositif de blindage pour connecteur de câble rectangulaire - Google Patents

Dispositif de blindage pour connecteur de câble rectangulaire Download PDF

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Publication number
EP0595304B1
EP0595304B1 EP93117429A EP93117429A EP0595304B1 EP 0595304 B1 EP0595304 B1 EP 0595304B1 EP 93117429 A EP93117429 A EP 93117429A EP 93117429 A EP93117429 A EP 93117429A EP 0595304 B1 EP0595304 B1 EP 0595304B1
Authority
EP
European Patent Office
Prior art keywords
chamber
screening device
connector
cable
strip body
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.)
Expired - Lifetime
Application number
EP93117429A
Other languages
German (de)
English (en)
Other versions
EP0595304A3 (en
EP0595304A2 (fr
Inventor
Jacques Ing. Longueville
Albert Ing. Hoolhorst
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE9304929U external-priority patent/DE9304929U1/de
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP93117429A priority Critical patent/EP0595304B1/fr
Publication of EP0595304A2 publication Critical patent/EP0595304A2/fr
Publication of EP0595304A3 publication Critical patent/EP0595304A3/de
Application granted granted Critical
Publication of EP0595304B1 publication Critical patent/EP0595304B1/fr
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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • 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
    • H01R13/64—Means for preventing incorrect coupling

Definitions

  • the invention relates to a shielding device for a cable connector with a rectangular cross-section shield housing of a shielded transfer system arranged on a backplane with a partition body divided by dividing walls into individual, equally sized rectangular chambers for inserting the cable connector and with additional functional elements arranged therein, in particular for guiding, contacting, Coding and locking of the cable connector.
  • shielded transfer bridges which contain a male connector are used for the signal transfer to accommodate receptacles which can be plugged in next to one another and which produce the separable cable connection.
  • a male connector for a shielded transfer system which consists of a strip body made of plastic, which is provided on its long sides with separate shield plates and is divided by partition walls into individual, rectangular chambers of the same size. Each chamber opposed to the guide posts 180 o -Vermossch is arranged with guiding and contacting devices and two on the longitudinal sides of the strip body is formed for the cable plugs.
  • the well-known male connector in cross section a rectangular housing having cable connectors of the same size inserted next to each other.
  • the male connector is neither intended nor suitable for smaller plugs. With such devices, there is now a need to be able to connect, in particular, smaller plugs in addition to cable plugs of a certain unit size.
  • the invention is therefore based on the object to enable the use of smaller plugs in a shielding device of the type mentioned without changing the structure of the shielding device.
  • a shielding device In a shielding device according to the invention, it can be expedient from an electrical and mechanical point of view if the chambers of the strip body provided for smaller cable plugs are divided into two equally large chamber compartments by a further partition. However, such partitions are not required for the plug-in and functional compatibility of the shielding device.
  • the additional functional elements are largely realized in a screen device according to the invention in that a rectangular base plate made of insulating material for contact pins is arranged in each chamber, that the base plate is formed on two opposite longitudinal sides with side walls spaced apart from the long sides of the strip body, and that the side walls are divided in two in the middle of their length.
  • a component can consist of a simple plastic injection-molded part, the side walls serving to guide, polarize and code the cable connector.
  • the side walls of the base plate have a smooth surface on the side facing the longitudinal sides of the strip body and with ribs and grooves running on the opposite inner surfaces an asymmetrical contour for polarization and coding of the cable connector are formed.
  • a preferred embodiment of a screen device is designed such that the strip body consists of a rectangular sheet metal frame with longitudinal sheets which are connected to one another at the ends and at equal intervals by transverse sheets. It is expedient here if the longitudinal plates of the strip body are additionally connected to one another in the chambers provided for the smaller cable connectors by an intermediate transverse plate arranged in a plane of symmetry of the chamber.
  • each chamber or each chamber compartment is designed with resilient ground contacts in a screen device according to the invention, the advantage results that good ground contact is achieved even with smaller cable plugs, with cable plugs of size 1/2 SU all round, and cable plugs of size 1/4 SU are contacted on three sides and pressed against the adjacent cable connector on the fourth side.
  • the screen device has a strip body 1, which here consists of a rectangular sheet metal frame. This is formed by two mutually parallel longitudinal plates 2 and 3 and a plurality of mutually parallel transverse plates 4 connecting the longitudinal plates to one another.
  • the chambers 16 to 19 can optionally accommodate smaller rectangular cable plugs instead of a cable plug of one size 1 SU, the plug cross section of which is a certain fraction of the plug cross section of the single size 1 SU.
  • one chamber for example the second chamber 17, can accommodate two smaller cable plugs of size 1/2 SU next to one another, the cross section of which is 1/2 of the plug cross section of the standard size 1 SU.
  • four smaller rectangular cable plugs of size 1/4 SU can be accommodated, for example, the plug cross section of which is 1/4 of the plug cross section of the unit size 1 SU.
  • FIGS. 2, 3, 4 and 6 Such possibilities with a strip body, which in addition to a cable connector of one size 1 SU also accommodates two cable connectors of size 1/2 SU and four cable connectors of size 1/4 SU, are shown in FIGS. 2, 3, 4 and 6.
  • a chamber for example in the second chamber 17 to implement a mixed assembly with a cable connector size 1/2 SU and two cable connectors size 1/4 SU. 1 and 6, those chambers which are intended for smaller cable plugs of the size 1/2 SU and the size 1/4 SU, for example the chambers 17 and 18, can be moved through a plane of symmetry of the respective one
  • Intermediate transverse plate 4a arranged in the chamber can be divided into two equally large chamber compartments 17a and 17b or 18a and 18b.
  • These intermediate cross plates 4a form an additional cross connection of the two longitudinal plates 2 and 3.
  • the longitudinal sheets 2 and 3 are connected in a certain way to the transverse sheets 4 and 4a, which extend with their upper edge 7 up to close to the upper edge 8 of the longitudinal sheets.
  • the cross plates are in each case at opposite points as close as possible to the upper edge 8 of the longitudinal plates 2, 3, ie approximately in the upper quarter of the height of the longitudinal plates, and as close as possible to the lower edge of the longitudinal plates, ie approximately in the lower quarter of the Height of the longitudinal plates, with a lateral projection 9 designed as a cam, inserted into a hole 10 of the respective longitudinal plate.
  • transverse plates 4 are formed with lateral hooks 11 which are angled toward the upper edge 8 of the longitudinal plates 2, 3 and which engage in slots 12 of the longitudinal plates which run perpendicular to the printed circuit board 5.
  • the slots 12 are here arranged in inwardly cranked webs 13, which are provided in the upper region of the longitudinal metal sheets, seen in the longitudinal direction through free cuts 15, alternately with inwardly directed spring arms 14 running in the plugging direction.
  • the longitudinal and transverse plates 2, 3, 4 and 4a which serve as shielding plates for cable connectors which can be inserted next to one another, are each formed with a plurality of press-in pins 6 on their lower edge facing a printed circuit board 5.
  • the sheet metal frame 1 is thus inserted as a whole into plated-through holes in the printed circuit board 5, which are connected to the ground layers of the printed circuit board. This creates a close shield contact between the longitudinal and transverse sheets and these ground layers and ensures strong anchoring of the shielding device on the printed circuit board.
  • the structure of a shielding device described results in a stable centering strip for a plurality of cable plugs of different sizes that can be inserted next to one another when the circuit board 5 is fastened.
  • Such a centering bar then forms in the assembled state, i.e. in the state equipped with pin fields and contact pins, or in the empty state, together with a separate knife strip, a transfer bridge for a shielded transfer system arranged on a backplane.
  • additional functional elements are provided in the strip body, in particular for guiding, contacting, coding and locking the cable plug.
  • To the chambers of the Centering strip can optionally be used for rectangular cable plugs of sizes 1 SU, 1/2 SU and 1/4 SU while maintaining and usability of all functions of the additional functional elements, these are designed and arranged accordingly with regard to all functions assigned to them.
  • an essential part of these additional functions is assigned to a rectangular base plate 20 for contact pins provided in each chamber 16, 17, 18 and 19 and made of insulating material.
  • This base plate takes over the additional functions of guiding and centering as well as the polarization and coding of all cable plugs in the same way, ie the base plate is designed from the outset to perform these functions for cable plugs of one size 1 SU as well as for smaller cable plugs of size 1 / Can exercise 2 SU and 1/4 SU.
  • the base plate 20 protruding laterally on the lower edge of the longitudinal sheets 2, 3 and pressed by the pressed-in longitudinal sheets against the printed circuit board 5 is formed on two opposite sides with vertical side walls 21 spaced from the longitudinal sheets 2, 3 of the strip body 1 and formed by a centrally arranged, extending in the insertion direction cutout 22 are divided into two, so that two wall parts 21a and 21b are formed on the side of the cutout aligned with the slot 12 and the central web 13.
  • the cutout 22 is so wide that between the wall parts 21a and 21b there is space for an intermediate transverse plate 4a located in a plane of symmetry of a chamber and also for the surrounding metal shield housing 26, 27, 33 of a cable connector.
  • the side walls 21 or their wall parts 21a and 21b have the longitudinal plates 2, 3 facing side a smooth surface.
  • the wall parts 21a and 21b are formed by ribs 23, 24 and grooves 25 (FIGS. 1 and 4) running in the plug-in direction with an asymmetrical contour, the side walls 21 interacting with corresponding side parts arranged within the shield housing of a cable connector and thus take over the functions of polarization and coding of a cable connector.
  • the ribs 23 (FIG. 4) can be broken-out ribs.
  • a 1 SU cable plug can be inserted, for example, into the chamber 16 due to the central division of a base plate, the surrounding metal shield housing 26 then enclosing all four wall parts 21a and 21b.
  • the division into two also allows the insertion of two 1/2 SU cable plugs, for example into the chamber 17, the cutout 22 between the wall parts 21a and 21b permitting the two circumferential metal shield housings 27 of the 1/2 SU cable plugs, which each have two Enclose wall parts 21a or 21b.
  • a total of four 1/4 SU size cable plugs can then be inserted into the chamber 18 due to the central division of the side walls 21, the shield housing 33 each enclosing a wall part 21a or 21b.
  • the side walls 21 of the base plate exercise a guiding and centering function
  • the 1/2 SU cable plugs in the chamber 17 through two wall parts 21a and if necessary, an intermediate cross plate 4a and the 1/4 SU cable plugs in the chamber 18 are centered by a wall part 21a or 21b and a cross plate 4 and optionally by an intermediate cross plate 4a.
  • the polarization that is, the 180 o -Verfitsch the cable connector
  • Figure 3 With -.
  • Fig. 4 corresponding functional elements of the corresponding side portions of a cable plug adapted black.
  • the side walls 21 or their wall parts 21a and 21b of the base plates 20 are provided with an asymmetrical contour which is formed by the ribs 23, 24 and grooves 25 extending in the direction of insertion.
  • the function of the coding system is also plug-in and functionally compatible for all three cable connector sizes integrated in the side walls 21 of the base plate 20 (FIG. 4).
  • the wall parts 21a, 21b are provided with molded-on coding ribs 23 and the cable connectors or their corresponding side parts are provided with coding elements 31 which can be fitted.
  • the chamber 16 for the 1 SU cable connector can accommodate eight coding keys in four groups. Through targeted assignment, 64 combinations can be set for a 1 SU cable connector, 6 combinations for 1/2 SU cable connector in chamber 17 and 4 combinations for 1/4 SU cable connector in chamber 18.
  • the locking function for the cable plug inserted into the chambers is performed by the spring arms 14 visible in FIG. These are - such as 5 - arranged symmetrically with respect to a line of symmetry 32 dividing the chamber 16 into two equally large, imaginary chamber compartments, or an intermediate transverse plate 4a dividing the chamber 17 in FIG. 6 into two equally large chamber compartments 17a and 17b.
  • the locking elements formed by the spring arms 14 can also be placed asymmetrically. As shown in Fig. 5, they perform their function in every chamber, regardless of the size of the inserted cable connector. So a 1 SU cable connector in chamber 16 by a total of four spring arms 14, i.e.
  • the function of the lateral mounting of the cable connector is assigned to the special, already described sheet metal construction of the centering strip in a screen device according to the invention.
  • the cable connector should be able to withstand large transverse loads at the cable outlet.
  • the longitudinal and transverse plates 2, 3 and 4 are stably connected to one another near the upper edge of the longitudinal plates.
  • an additional intermediate transverse plate 4a arranged in a plane of symmetry 32a can be provided between the longitudinal plates 2 and 3, as shown in FIGS. 1 and 6, and are connected in the same way as the transverse plates 4 with the longitudinal plates on the one hand and the printed circuit board on the other in order to absorb the transverse forces.
  • each chamber 16, 17, 18 or 19 or each chamber compartment 17a, 17b and 18a, 18b is provided with circumferential, resilient ground contacts, not shown here, which have a low-resistance ground contact between the printed circuit board and the metal shield housing 26, 27 , 33 ensure the cable connector.
  • the additional intermediate cross plates 4a in FIG. 1 and FIG. 6 for the 1/2 SU and 1/4 SU cable plugs also have resilient ground contacts on both sides and - as mentioned - are pressed into the printed circuit board 5. This means that 1/2 SU cable plugs are also contacted all the way round.
  • the 1/4 SU cable connectors are contacted on three sides in the centering strip. The fourth side is pressed against the neighboring plug by the ground contact forces and thus closes the ground circuit.

Landscapes

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

Claims (12)

  1. Dispositif de blindage pour connecteurs de câble conçus avec un boîtier de blindage rectangulaire en section transversale d'un système de transfert blindé (1) disposé sur une carte imprimée arrière, comportant un corps de réglette divisé par des cloisons (4) en différentes chambres rectangulaires (16 - 19) de même grandeur pour l'insertion des connecteurs de câble et comportant des éléments fonctionnels (14, 20, 21) supplémentaires disposés dans celui-ci notamment pour le guidage, l'établissement du contact, le codage et le verrouillage des connecteurs de câble, caractérisé en ce que les éléments fonctionnels supplémentaires (14, 20, 21) en ce qui concerne toutes les fonctions leur étant associées, sont conçus et disposés de sorte que puissent être insérés dans une chambre (16 à 19) du corps de réglette (1), avec maintien et exploitabilité de toutes les fonctions des éléments fonctionnels supplémentaires, au choix un connecteur de câble rectangulaire d'une certaine grandeur standard ( 1 SU = 1 System Unit) ou bien des connecteurs de câble rectangulaires plus petits, dont la section transversale de connecteur est une certaine fraction de ½ (1/2 SU) et ¼ (1/4 SU) de la section transversale de connecteur de la grandeur standard (1 SU).
  2. Dispositif de blindage selon la revendication 1, caractérisé en ce que les chambres (17, 18) du corps de réglette (1) prévues pour les connecteurs de câble plus petits (1/2 SU, ¼ SU) sont divisées par une autre cloison (4a) en deux compartiments de chambre (17a, 17b resp. 18a, 18b) de même grandeur.
  3. Dispositif de blindage selon la revendication 1 ou 2, caractérisé en ce qu'est disposée dans chaque chambre (16 à 19) une plaque de socle rectangulaire (20) en matière isolante pour connecteurs mâles, en ce que la plaque de socle (20) est conçue sur deux côtés longitudinaux opposés l'un à l'autre avec des parois latérales (21) implantées à distance des côtés longitudinaux (2, 3) du corps de réglette (1) et en ce que les parois latérales (21) sont divisées en deux dans le milieu de leur longueur.
  4. Dispositif de blindage selon la revendication 3, caractérisé en ce que les parois latérales (21) de la plaque de socle (20) sont divisées en deux par une découpure (22) disposée au centre.
  5. Dispositif de blindage selon la revendication 3 ou 4, caractérisé en ce que les parois latérales (21) de la plaque de socle (20) ont une surface lisse sur le côté orienté vers les côtés longitudinaux (2, 3) du corps de réglette (1) et sont conçues pour la polarisation et le codage des connecteurs de câble avec un profil asymétrique sur les surfaces intérieures opposées les unes aux autres du fait de la présence de nervures (23, 24) et de rainures (25) passant dans le sens d'enfichage.
  6. Dispositif de blindage selon l'une des revendications 2 à 5, caractérisé en ce que pour chaque chambre (16 à 19) du corps de réglette (1) sont prévus sur les deux côtés longitudinaux opposés l'un à l'autre, pour les connecteurs de câble respectivement deux éléments de verrouillage (14) qui sont disposés symétriquement ou asymétriquement par rapport à une cloison (4a) divisant la chambre en deux compartiments de chambre (17a, 17b, 18a, 18b) de même grandeur.
  7. Dispositif de blindage selon l'une des revendications précédentes, caractérisé en ce que le corps de réglette (1) se compose d'un cadre en tôle rectangulaire avec des plaques longitudinales (2, 3), qui sont reliées ensemble aux extrémités et à intervalles égaux par des plaques transversales (4).
  8. Dispositif de blindage selon la revendication 7, caractérisé en ce que les plaques longitudinales (2, 3) du corps de réglette (1) sont de plus reliées ensemble dans les chambres (17, 18) prévues pour les connecteurs de câble plus petits par une plaque transversale intermédiaire (4a) disposée dans un plan symétrique des chambres.
  9. Dispositif de blindage selon l'une des revendications 2 à 8, caractérisé en ce que chaque chambre (16 à 19) resp. chaque compartiment de chambre (17a, 17b, 18a, 18b) est conçu(e) avec des contacts de masse élastiques.
  10. Dispositif de blindage selon l'une des revendications 7 à 9, caractérisé en ce que toutes les plaques longitudinales et transversales (2, 3 resp. 4, 4a) du cadre en tôle sont insérées et fixées au moyen de chevilles encastrées (6) dans des alésages de la carte imprimée (5) à trous métallisés, lesquels sont en contact avec des couches de masse de la carte imprimée.
  11. Dispositif de blindage selon l'une des revendications 7 à 10, caractérisé en ce que les plaques longitudinales (2, 3) du cadre en tôle sont conçues dans la zone supérieure, vu dans le sens longitudinal dans des sections ouvertes (15) en alternance avec des bras à ressort (14) orientés vers l'intérieur, passant dans le sens d'enfichage comme éléments de verrouillage et avec des barrettes (13, 13a, 13b) contre-coudées vers l'intérieur, pourvues d'une fente (12) pour des crochets (11) des plaques transversales (4, 4a).
  12. Dispositif de blindage selon la revendication 11, caractérisé en ce que chaque plaque longitudinale (2, 3) est conçue pour chaque chambre avec deux demi-barrettes (13a, 13b) pour les plaques transversales (4) et avec une barrette médiane (13) complète pour la plaque transversale intermédiaire (4a) et avec deux bras à ressort (14).
EP93117429A 1992-10-29 1993-10-27 Dispositif de blindage pour connecteur de câble rectangulaire Expired - Lifetime EP0595304B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93117429A EP0595304B1 (fr) 1992-10-29 1993-10-27 Dispositif de blindage pour connecteur de câble rectangulaire

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP92118540 1992-10-29
EP92118540 1992-10-29
DE9304929U 1993-03-31
DE9304929U DE9304929U1 (de) 1993-03-31 1993-03-31 Schirmeinrichtung für rechteckige Kabelstecker
EP93117429A EP0595304B1 (fr) 1992-10-29 1993-10-27 Dispositif de blindage pour connecteur de câble rectangulaire

Publications (3)

Publication Number Publication Date
EP0595304A2 EP0595304A2 (fr) 1994-05-04
EP0595304A3 EP0595304A3 (en) 1995-11-02
EP0595304B1 true EP0595304B1 (fr) 1997-09-24

Family

ID=27208571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117429A Expired - Lifetime EP0595304B1 (fr) 1992-10-29 1993-10-27 Dispositif de blindage pour connecteur de câble rectangulaire

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EP (1) EP0595304B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0836246B1 (fr) * 1996-10-12 2002-07-17 Molex Incorporated Système de détrompage pour connecteur électrique
CN101015095B (zh) * 2004-07-07 2012-05-09 莫莱克斯公司 用于和小尺寸插塞式连接器一起使用的键式外壳

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2348687B1 (de) * 1973-09-27 1974-10-31 Siemens Ag Steckbares Gehaeuse
DE3683398D1 (de) * 1985-05-31 1992-02-27 Siemens Ag Vorrichtung zur verbindung von schirmungskappen mehrpoliger stecker mit der erdpotentialschicht einer verdrahtungsplatte.
US4846727A (en) * 1988-04-11 1989-07-11 Amp Incorporated Reference conductor for improving signal integrity in electrical connectors
DE59008569D1 (de) * 1989-06-29 1995-04-06 Siemens Ag Mehrpolige Steckvorrichtung mit einer Zentrierleiste mit einer Schirmvorrichtung.
GB8928777D0 (en) * 1989-12-20 1990-02-28 Amp Holland Sheilded backplane connector

Also Published As

Publication number Publication date
EP0595304A3 (en) 1995-11-02
EP0595304A2 (fr) 1994-05-04

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