KR910002264B1 - Terminator and corresponding receptacle for multiple electrical conductors - Google Patents

Abstract

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Description

Terminators for multiple electrical conductors and housings for their interrupters

1 is a perspective view of an assembled plug terminator according to the invention carried out with a plug terminator for a multi-core cable.

2 is an exploded perspective view of the plug terminator of FIG.

3 is a cross-sectional view taken along line 3-3 of FIG.

4 is a front perspective view of the terminator of the present invention implemented in the form of an edge card terminator.

5 is a rear perspective view of the edge card terminator of FIG.

6 is a perspective view of a housing suitable for receiving the terminator whether the terminator of the present invention is used in the form of a cable plug or an edge card.

7 is a vertical sectional view of the housing of FIG. 6;

8 is a front view of the FIG. 6 housing.

9 is a perspective view showing another embodiment of a housing suitable for receiving the terminator whether the terminator of the present invention is used in the form of a cable plug or an edge card.

10 is an exploded perspective view of another embodiment of a plug terminator for a multicore cable.

11 is a vertical section along line 11-11 of FIG. 10 including the central axis of the finger of the insulated contact support member of the plug terminator.

* Explanation of symbols for main parts of the drawings

10,10 ', 10 ": Terminator 12: Cable

16: conductor 16W: lead wire

22 grounding structure 24 substrate

28: protrusion 32: wall

34: channel 40: pillar

44,44 ': Contact support member 46,102: Body

48: home 54: finger

58: electrical contact element 64: casing

66A, 66B: Cover member 76: Conductive surface

80: fixed tab 82: insulator displacement contact member

83: pin 84: spring contact member

86: printed circuit board 88: conductive tracing

90: bracket 100: housing

106A, 106B: Bump 108A, 108B: Groove

110A, 110B, 112A, 112B: Electrical contact element 140: Slot

142: electrical contact plate

The present invention relates to a terminator having electrical contact elements that can be connected one by one with a plurality of electrical conductors, and more particularly to a terminator having a grounding structure arranged to insulate each electrical contact element.

As the performance of electronic devices has increased significantly, it has been recognized that the problem of electrical signal transmission within certain electronic devices or between coupled devices must be addressed from a system perspective. In that respect, not only should each individual component of the signal transmission system be optimal for high speed operation, but also that the contact areas between the components of the signal transmission system must be able to operate interactively without degrading the performance of adjacent components. Required.

One of the main components of a signal transmission system that requires attention is the transmission cable itself. It is recognized that a cable transmitting high speed signals is electrically equivalent to a transmission line in that it extends over an electrically large distance relative to the wavelength of the transmitted signals. This is true in most cases even if the cable actually extends only a short distance between parts of certain devices or between cooperating devices.

The design of electrical cables has evolved to the extent that cables can be precisely designed to exhibit certain electrical properties. Examples of such cable structures include U.S. Patent Application No. 769,725, filed Aug. 27, 1985, U.S. Patent Application 892,300, filed Aug. 4, 1986, and U.S. Patent Application No. 8, 1987. 067,767 and claimed. The cable disclosed in the last two mentioned applications (US Pat. Nos. 892,300 and 067,767) includes a corrugated ground structure that forms separate closed sections or meanings, the jackets extending over the full length of the cable. Each of the sheaths accommodates one or more conventional sheath conductors. When the grounding structure is connected to a predetermined electrical potential, the conductors in each sheath are completely insulated from the conductors disposed in adjacent sheaths. As a result, despite the fact that only conventional sheath conductors are used, such cables exhibit electrical properties very similar to those obtainable in coaxial cables.

The system view also includes taking into account the electrical performance of the transient area in the middle between the cable end and the cable terminator. The connector structure disclosed and claimed in U.S. Patent Application No. 919,029, filed on October 15, 1986, is a ground plane, contact elements in the connector, spaced apart from the ends of the conductors in the cable to minimize electrical disconnection in the system. And use the interconnection between them.

The density of the terminator, i.e. the consideration of the signals that can pass through a given terminator, is an important consideration. In conventional systems, attempts have been made to shield the system across the transmission line and control its impedance by simply providing the alternating contact elements in the series of linear contact elements of the terminator as ground contact elements. The contact elements are not physically altered but simply pointed to as a ground contact element and connected to a predetermined ground potential. In this case, the density of the terminator is limited.

In view of the foregoing, it is considered beneficial to further extend the system concept to the individual terminators of the transmission system and to increase the density of the terminators. Accordingly, it would be beneficial to provide a terminator for a multi-core cable or a printed circuit board that electrically sinters contact elements in the terminator to prevent or minimize cross talk between adjacent conductors and to prevent or minimize degradation of signal transmission. I think. It is also contemplated to provide an insulation structure in the terminator in such a way that the contact elements themselves do not need to be included as part of the insulation structure so that the signal density of the terminator can be increased.

The present invention relates to a terminator for a multiconductor electrical transmission system, which is provided with a grounding structure for electrically insulating each of the adjacent electrical contact elements in the terminator. The transmission system can be a multicore cable or a circuit board with multiple tracings, where the terminators are suitable for connecting to each other in the form of board-to-board, cable-to-cable or cable-to-board.

In one aspect of this invention, the terminator includes a metal ground structure formed of a substrate having a plurality of walls, the walls extending upwards from the surface of the substrate. In a preferred case, a series of walls also extend on both surfaces of the substrate. These walls cooperate to form a number of panels that run side by side across the surface of the substrate. An insulated contact support member having a body with a series of fingers is mounted on the substrate, wherein the fingers extend into the channels on the substrate. The electrical contact element is mounted on each finger such that the walls extend over the substrate farther than the distance the electrical contact element extends. Each of the fingers may be provided with a hole in which a spring contact element is arranged. As a result, when the grounding structure is connected to a predetermined electrical potential, each of the contact elements is electrically insulated from adjacent contact elements, thus preventing or minimizing crosstalk between the contact elements.

This terminator may be implemented in a form suitable for edge card terminators for boards such as printed circuit boards or plug terminators for multi-core cables. In the case of an edge card terminator, the grounding structure may be provided with a suitable mounting so that the grounding structure can be mounted at the edge of the substrate. In the case of a plug terminator, a suitable housing is provided which forms the plug portion. In one example, the portion of the ground structure with walls and the fingers of the contact support member protrude forward from the housing. In another example, the housing is collinear with the front face of the contact support member and the grounding structure. The insulated contact support member may be provided with grooves for receiving the conductors of the cable. Alternatively, the leads can be surface welded to the contact element.

In another aspect of this invention, the invention relates to a housing for a terminator. This housing has a series of ridges separated by alternating grooves in one example and alternating slots in another example. These ridges carry electrical contact elements above them. In an embodiment in which grooves are used, a series of separate contact elements are provided in the grooves, and in an embodiment of the housing with slots, a ground contact plate is provided on the outside of the housing in communication with at least one slot. In each case, the housing is connected to the plug such that the signal transmission contact elements disposed in the channels on the grounding structure are electrically connected with the contact elements on the ridges. The walls of the grounding structure are arranged in electrical connection with a contact plate overlying contact elements or slots provided in the grooves. The plug and housing electrically shield the electrical contact elements in the terminator (whether in the form of cable plugs or edge cards) when connected to each other, thus preventing or minimizing crosstalk and signal transmission degradation to keep the electrical signal intact.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1-3 shows a terminator 10 of the present invention, which is in the form of a plug terminator for a multi-core cable 12. Although the cable 12 is shown in the figures as being a circular transmission cable, the plug terminator 10 or 10 '(10' and 11 ') described herein according to the invention is a flat cable (ribbon cable or discontinuous wire). Cable).

The cable 12 includes an outer coating 14 of insulation (FIG. 3) surrounding a plurality of coated conductors 16. Each conductor 16 itself includes an insulation coating 16J surrounding the conductor wire 16W. A conductive sheath 18 disposed below the outer sheath 14 of the cable 12 acts as part of the grounding and shielding structure for the cable 12. As can be appreciated by one skilled in the art, the sheath 18 is terminated by a metal ferrule 20 as described in US Pat. No. 4,416,501, assigned to the applicant of the present application.

As shown in FIGS. 2 and 3, the central portion of the plug terminator 10 is a metal grounding structure 22. This grounding structure 22 includes a substrate 24 having a major flat surface, with the protruding portion 28 integrally projecting forwardly from the substrate. Although the grounding structure 22 is shown having upper and lower working surfaces 30A and 30B, a grounding structure 22 having only one working surface may also be used, and is within the scope of the present invention. More specifically, the plug terminator 10 is grounded only on the upper working surface 30A of the grounding structure 22 (ie, the ground above the splitting surface 31 extending through the substrate 24 of the grounding structure 22). Water]. In such a case, the opposite side of the grounding structure 22 is preferably flat. Moreover, as will be described later, the remaining elements of the terminator are suitably modified to accommodate this type of grounding structure 22.

A number of walls 32 extend from the front protruding portion of each of the upper and lower working surfaces 30A and 30B of the substrate 24. The walls 32 are arranged side by side to form a plurality of channels 34 across the faces of the protruding portion 28 of the substrate 24. In a preferred embodiment, the axes of adjacent channels 34 are parallel to each other, but such a relationship is not necessarily required. In addition, although the upper and lower working surfaces 30A and 30B of the substrate 24 are shown to have the same number of channels 34, such a state is not necessarily required.

In the flat portion 26 of the substrate 24 behind the protruding portion 28, there are flanges 38 that extend further back and slightly outward from the substrate 24. These flanges 38 have pillars 40, and in some cases, it may be desirable for the pillars 40 to be electrically conductive and electrically connected to a substrate 24 of conductive material. A ground structure having two or more working surfaces may be formed by arranging additional substrates 24 (whether each substrate has one working surface or two working surfaces) in any funnel pile.

In the figures, the grounding structure 22 is shown to be made of an integral metal member, but any suitable structure for the grounding structure 22 may be used. For example, the grounding structure 22 may be formed of plastic, wherein its entire upper and lower working surfaces 30A, 30B (including the walls 32 on the protruding portions 28) are made of a suitable conductive material. Is covered. Alternatively, the substrate 24 may be stamped from a sheet of conductive material provided with slots near the front end of the substrate. The walls 32 may be stamped from a similar material with slots. As shown in the figure, the substrate 24 and the walls 32 are connected to each other through slots to form a grounding structure 22.

In one embodiment of the cable plug form of the present invention, the plug terminator 10 also includes a pair of contact supporting members 44 with a body 46, in which a series of grooves 48 are formed. do. The contact support member 44 is formed of an insulating material. Near the front end of the body 46 of the contact support member 44, a partition 50 with a recess 50G is provided. A series of holes 52 seen in the lower contact support member 44 of FIG. 2 are formed through the body 46 of the contact support member 44 in the region behind the partition 50. Each 52 is aligned with the inlet of each of the grooves 48 for the purpose of explanation. A series of fingers 54 extends forward from the body 46. The number of fingers 54 coincides with the number of channels 34 provided in the ground structure 22. In the assembled state, the fingers 54 extend into the channels 34 such that their front ends terminate in line with the leading edge of the grounding structure 22.

Some suitable shaped series of electrical contact elements 58 are embedded in the insulating material of the fingers 54. The electrical contact elements 58 are arranged such that a flat blade of each of the electrical contact elements is exposed on the surface of the finger 54 on which the contact element is disposed. The electrical contact element 58 extends rearward through the partition 50 from the fingers 54. The electrical contact element 58 terminates in front of the inlets of the grooves 48 overlapping the holes 52 of the body 46. As can be seen in the figures, the top surfaces of the walls 32 of the grounding structure 22 extend over the contact elements when the electrical contact elements 58 are received in the channels 34.

Plug terminator 10 includes a casing 64. This casing 64 is formed of complementary lid members 66A and 66B. Each of the lid members 66A, 66B has a front incision 68, and at the incision there is a jaw 68T. The shape of the front ablation 68 corresponds to the shape of the portion of the body 46 near the partition 50 of the contact support member. On the back wall of each of the lid members 66A, 66B there are holes 70 with grooves cooperating with each other. These holes 70 are shaped to approximately match the appearance of the cable 12, whether the cable 12 is circular or flat and sized to receive the cable snugly.

Near the rear wall of the lid members 66A, 66B, a pair of joints 72 with holes 74 are arranged. These holes 74 are shaped to fit snugly when the pillars 40 on the grounding structure 22 are pressed in. In this preferred case, the lid members 66A, 66B are made of a conductive material. The lid members can also be made of plastic material, in which case a conductive surface 76 (shown only in FIG. 3) is formed by a conductive layer disposed on the inner surface of each of the lid members 66A, 66B. do. On the sidewalls of the lid members 66A, 66B, notches 78 are formed that are sized to receive the fixing tabs 80, and the fixing tabs are casing 64. To keep the lid members together.

In the assembled state shown in FIGS. 1-3, the complementary lid members 66A, 66B are closed to each other and fixed together with each other by the fixing tabs 80, and the pillars 40 of the grounding structure are joined to the joints. It is pressed into the holes 74 of the 72 to engage. In this way, the jaw 68T of the front cutout 68 of the casing 64 engages with the recess 50C of the contact supporting member. The multi-core cable 12 extends into the space formed behind the casing 64 through the hole 70 behind the lid members 66A and 66B. The outer sheath 14 of the cable 12 is peeled off a certain distance from its end to expose the individual sheath conductors 16 therein. The insulator displacement contact member 82 cuts the outer covering 14 of the cable 12 and is electrically connected to the ferrule 20 of the cable 12. The insulator displacement contact member 82 is trapped in the holes 70 with the grooves in the rear wall of the lid member to electrically connect the conductive surface 76 on the inner surface of the casing 64 to a predetermined electrical potential.

Prior to coupling the lid members 66A and 66B to each other to close the casing, the insulation coatings 16J of the individual conductors 16 of the cable 12 are peeled off to separate conductors 16W of the conductors. It lies in each of the grooves 48 extending from the body 46 of the contact support member 44. Conductors 16W and electrical fastening elements 58 may be suitably attached by, for example, welding, soldering, or insulator displacement contact members to connect them to each other, which is also within the scope of this invention.

10 and 11 show a plug terminator 10 'of another embodiment of the present invention, which is approximately similar to the embodiment of the present invention shown in FIGS. 1-3. In another embodiment of this invention, shown in FIGS. 10 and 11, the contact support member 44 has a body 46 formed of an insulating material, from which a number of fingers 54 extend. Each of these fingers 54 has a hole 55 in which a lip 55L (FIG. 11) is provided. Thus, each finger 54 is actually a hollow member in which a spring-type electrical contact element 58 is accommodated. The tail portion of the electrical contact element 58 is formed with a slot 58S, which makes the structure of the tail portion of the electrical contact element 58 approximately similar to that of the insulator displacement contact member. The head of the electrical contact element 58, ie the front end, is captured by the lip 55L, while its tail portion projects rearward from the body 46 of the contact support member 44. The approximately linear portion 58L between the curved electrical contact area 58C of the electrical contact element 58 and the tail portion with the slot 58S is captured in the groove 59 at each lateral horizontal edge of the electrical contact element 58. The groove is formed in each of the side walls of the body 46 of the contact supporting member 44. In FIG. 11, a portion of the electrical contact element 58 is cut away to clearly show the groove 59.

The contact support member 44 is mounted to the grounding structure 22 in a manner substantially similar to the structure shown in FIGS. 2 and 3. Each of the fingers 54 of the contact support member 44 is received in each of the channels 34 formed by the walls 32 of the ground structure 22. As shown in the figure, the contact support member 44 is disposed on the grounding structure 22 such that its body 46 touches the inner ends of the walls 32 of the grounding structure. The contact support member 44 is held in the position shown in FIG. 11 by the junction 26A formed on the flat portion 26 of the substrate 24 of the grounding structure 22. Of course, any suitable method may be used to position the contact support member 44 on one side (or both sides) of the grounding structure 22. Since the welding attachment of the leads 16W to the tail of the electrical contact element 58 can be achieved by a surface welding process, the holes 52 provided in the flat portion 26 of the grounding structure 22. (Figure 2) is removed. To this end, the conductors 16W of the conductors 16 are bent 16B in FIG. 11 so that the axis of the end of the exposed conductor 16W extends straight through the tail of the electrical contact element 58. Bent as in

Further, in that the front end of each of the lid members 66A and 66B is bent downward and upward so that the front edge of the casing is on the same line as the front surface 44F of the contact supporting member 44 to form the jaw 68T. The casing 64 of the plug terminator 10 'is slightly modified from the casing shown in FIGS. These lid members 66A, 66B are held together with each other in the same manner as described for the structure shown in FIGS. 2 and 3. That is, the pillars 40 on the grounding structure 22 are pressed into the holes 74 of the joints 72 of the lid members 66A and 66B. Sidewalls of lid members 66A, 66B have notches 78 that receive securing tabs 80. As with the embodiment of this invention shown in FIGS. 2 and 3, the casing 64 shown in FIGS. 10 and 11 may also be entirely made of a conductive material, but as mentioned above, the lid members 66A. 66B may also be made of a non-conductive material such as, for example, plastic, in which case conductive surfaces 76 must be provided on both the inner and outer surfaces of the lid member. This conductive face 76 is schematically shown in the figures.

In all other respects, the embodiment shown in FIGS. 10 and 11 is the same as the embodiment described in FIGS. Thus, the remaining reference numerals used in FIGS. 10 and 11 correspond to those used in FIGS. 2 and 3 for the corresponding parts. There is no meaning to the difference in the number of walls 32, channels 34, fingers 54, etc. used to describe various forms of embodiments of this invention throughout this specification.

As seen in FIG. 11, the plug terminator 10 'is received in a header 81 mating with it. The header 81 includes an insulated housing 82, in which a series of pins 83 extend. Each pin 83 is received one by one in the holes 55 of the fingers 54. Each pin 83 is in electrical connection with an electrical contact area 58C of the electrical contact element 58. The housing 82 also includes a spring contact member 84, which is disposed on the metal cover members 66A and 66B (or when the cover members 66A and 66B are formed of an insulating material). A conductive surface 76 disposed therein to form a ground connection with the lid members 66A, 66B.

As seen in Figures 4 and 5, a plug terminator 10 "according to another embodiment of this invention is an edge card for substrates such as a printed circuit board 86 having a plurality of conductive tracings 88. In the example shown in FIGS. 4 and 5, a grounding structure 22 similar to that described in FIGS. 1-3 or 10 and 11 is placed above and below the printed circuit board 86. In order to facilitate this mounting, the grounding structures 22 are supported by brackets 90 at their ends, the grounding structures 22, each receiving a contact support member 44 '. This contact support member 44 'is approximately similar to the contact support member described in Figures 1-3 or 10 and 11, except that its body 46' is cut off. As can be seen, the electrical contact elements 58 from the contact support member 44 ′ are on the surfaces of the printed circuit board 86. It is directly connected to conductive tracings 88. It will be appreciated that this plug terminator 10 "may also be used to utilize only one of the surfaces of the printed circuit board 86.

Indeed, ground structure 22 may be connected to a predetermined electrical potential (eg, chassis or logic circuit ground). Since the walls 32 of the protruding portions 28 in front of the substrate 24 extend above the electrical contact elements 58, approximately U-shaped receptacles are formed where the electrical contact elements 58 are disposed. . Ground structures 22 electrically shield and insulate each electrical contact element 58 from an adjacent mating electrical contact element, whether the electrical contact elements are adjacent to each other, vertically adjacent, or both vertically adjacent. .

6 and 7 show a perspective view and a vertical sectional view of a housing 100 suitable for accommodating the plug terminator 10, 10 'or 10 " described so far. The housing 100 has suitable insulation such as molded plastic. A body 102 made of material, which has an opening therein for receiving a plug terminator 10, 10 'or 10 ". This housing is approximately similar to the housing described in US Pat. No. 4,601,527, assigned to the applicant of the present application.

However, a series of ridges 106A, 106B and grooves 108A, 108B are alternately provided at each of the upper and lower edges of the opening of the body 102 of the housing according to the invention. Appropriate electrical contact elements 110A, 110B and 112A, 112B are disposed on the surfaces of the ridges 106A, 106B and the valleys of the grooves 108A, 108B, respectively. These electrical contact elements are retained in the housing 100 in a standard manner.

In Figures 6-9, beam-type contact elements, which are preloaded and supported on one side only, are shown, but the housing 100 or 100 'according to the invention may use any suitable other type of contact element.

As seen in FIG. 8, in accordance with this invention, electrical contact elements 110A, 110B, 112A, 112B are contact elements 110A, 110B on ridges 106A, 106B when measured against a predetermined reference plane. ) And the reference plane are supported by the body 102 of the housing 100 such that the distance between the reference plane and the reference plane differs from the distance between the electrical contact elements 112A, 112B and the reference plane in the grooves 108A, 108B.

The reference plane for the ridges 106A and grooves 108A in the top row is selected as the face 116 including the top face of the body 102. Thus, the distance 118 between the electrical contact elements 110A on the ridges 106A and the reference plane 116 is the distance 120 between the electrical contact elements 112A and the reference plane 116 of the grooves 108A. Greater than

A similar situation applies to the electrical contact elements 110B and 112B provided in the bottom rows of ridges 106B and the grooves 108B. That is, in this case, the surface 122 including the underside of the body 102 is selected as the reference plane, and the distance 124 between the electrical contact elements 110B and the reference plane 122 is the electrical contact elements 112B. ) And the distance 126 between the reference plane 122.

In a dual array housing as shown in FIGS. 6-8, a bisecting surface 130 (FIG. 8) that extends in the middle between them in parallel with a series of electrical contact elements can also form an equally useful reference plane. In this case, each of the electrical contact elements 110A, 110B on the ridges 106A, 106B is a distance 134 away from the bisecting surface 130, which is the reference plane, while the electrical contact element of the grooves 108A, 108B. Each of the fields 112A and 112B is a distance 136 away from the reference plane.

Due to the structure in which the electrical contact elements of the ridges and the electrical contact elements of the grooves are arranged alternately with each other, the plug terminator 10, 10 ′ or 10 ″ has the tops of the walls 32 on the ground structure 22 having grooves ( The electrical contact elements 58 supported by the contact support member 44 are electrically connected to the electrical contact elements 112A, 112B on the ridges 106A, 106B, while being electrically connected with the electrical contact elements 112A, 112B of the 108A, 108B. It can be housed in the housing 100 so as to be in electrical connection with 110A, 110B. The connection density is increased by placing signal and ground contacts at two levels of the housing 100. The ground contact is connected to the ground structure 22. As provided by the walls, the width dimension of the walls may actually be smaller than the width dimension of the signal transmission connection blades, in which case the signal transmission line density is increased while maintaining the characteristics of the signal transmission line. In contact with signal connection By interlacing the ground contacts, the grounding structure is further reduced, resulting in a higher connection density.

Finally, because insulation is provided by the grounding structure 22 and not by the individual contact elements, all connection blades can be used to transmit signals, thus further increasing the density of the terminator.

The structure of the housing shown in FIGS. 6-8 is slightly modified as shown in FIG. In this embodiment, the ridges 106 are separated by the slits 140. Instead of spring contact electrical contact elements 112A, 112B, electrical contact plates 142 are provided which overlie a portion of the slots 140. The grounding structure 22 is slightly adapted so that the walls 32 extend to a height sufficient to connect the top surfaces of the walls 32 to the electrical contact plates 142. In this embodiment (including the embodiment shown in FIGS. 6-8), the electrical contact plates 142 (and the grounding contact elements 112A, 112B) are preferably connected in common.

In the foregoing description, those skilled in the art can readily understand that the terminator and housing according to the invention increase the signal density while still effectively shielding the cable to the terminator area.

Claims (28)

A metal ground structure 22 formed of a substrate 24 having a plurality of upstanding walls 32 forming a predetermined number of channels 34 arranged side by side across the ground structure and each of the channels 34 An insulated contact support member 44 having a body 46 extending forwardly and a plurality of fingers 54 received one at a time, and disposed on each of the fingers 54 and connected to each of the conductors one at a time; And an electrical contact element (58) which is electrically insulated from each other when the grounding structure is connected to a predetermined electrical potential. 2. Terminator according to claim 1, wherein the top surfaces of the walls (32) are separated from the substrate (24) by a greater distance than the contact elements (58) on the fingers (54). 3. The ground according to claim 2, wherein the plurality of electrical conductors are conductive tracings 88 disposed on the surface of the circuit board 86, and the means 90 for supporting the ground structure 22 at the edge of the circuit board is grounded. Terminators disposed at each end of the structure. 2. The ground according to claim 1, wherein the plurality of electrical conductors are conductive tracings 88 disposed on the surface of the circuit board 86, and the means 90 for supporting the ground structure 22 at the edge of the circuit board is grounded. Terminators disposed at each end of the structure. 3. Terminator according to claim 2, wherein a plurality of electrical conductors are arranged in the cable and the contact support member (44) has a plurality of grooves (48) for receiving the conductors of the cable one by one. 2. Terminator according to claim 1, wherein a plurality of electrical conductors are arranged in the cable and the contact support member (44) has a plurality of grooves (48) for receiving the conductors of the cable one by one. 4. A series of ridges 106A and 106B, grooves 108A and 108B alternately disposed between adjacent ridges, and electrical contact elements disposed within each of the ridges and respective grooves. (110A, 112A) (110B, 112B), wherein the contact elements (110A) (110B) on the ridges are different from the distance that the contact elements (112A) (112B) in the grooves are away from a predetermined reference plane. And a housing 100 spaced apart from the reference plane, the housing having contact surfaces on the fingers 54 while the upper surfaces of the walls 32 are in electrical connection with the contact elements in the grooves of the housing. A terminator for receiving (58) the grounding structure (22) in electrical connection with the contact elements on the ridges. 6. A series of ridges (106A) and (106B), grooves (108A) and (108B) alternately disposed between adjacent ridges, and electrical contact elements disposed in each of the ridges and in each of the grooves. (110A, 112A) (110B, 112B), the contact elements (110A) (110B) on the ridges are different from the distance that the contact elements (112A) (112B) in the grooves away from the predetermined reference plane Further comprising a housing 100 spaced apart from the reference plane, the housing having contact surfaces on the fingers 54 while the top surfaces of the walls 32 are in electrical connection with the contact elements in the grooves of the housing. A terminator having said ground structure (22) in electrical connection with the contact elements on said ridges. 4. A series of ridges (06), slots (140) alternately disposed between adjacent ridges, electrical contact elements disposed on each of the ridges, and slots outside the housing. Further comprising a housing 100 having contact plates 142 superimposed on at least one of the 140, wherein the top surfaces of the walls 32 are in electrical connection with the contact plates 142. Terminator receiving the ground structure (22) such that the contact elements (58) on the fingers (54) are in electrical connection with the contact elements on the ridges (106). 6. A series of ridges 106, slots 140 alternately disposed between adjacent ridges, electrical contact elements disposed on each of the ridges, and slots outside the housing. Further comprising a housing 100 having contact plates 142 superimposed on at least one of the 140, wherein the top surfaces of the walls 32 are in electrical connection with the contact plates 142. Terminator receiving the ground structure (22) such that the contact elements (58) on the fingers (54) are in electrical connection with the contact elements on the ridges (106). A casing 64 and a metal grounding structure 22 disposed within the casing 64 so that a portion protrudes forward of the casing, the protruding portion 28 of the grounding structure has a number of upstanding walls 32. The walls cooperate with each other to form a predetermined number of channels 34 arranged side by side across the ground structure, wherein the axes of the channels lie approximately parallel. An insulated contact support member 44 having a body 46 extending forwardly with a predetermined number of fingers 54, which are received one by one, and in each of the fingers 54 and in a multi-core cable 12. An electrical contact element 58 connected one by one to each of the conductors 16, the upper surfaces of the walls 32 extending over the contact elements on the fingers 54 so that the grounding structure is connected to a predetermined electrical potential The electrical contacts electrically insulated from each other Multicore cable terminator for plug consisting of a cow (58). 12. A terminator according to claim 11, wherein the contact support member (44) has a series of grooves (48) disposed in its body (46) to receive conductors (16) one by one. 13. The terminator of claim 12, wherein the grounding structure has a pillar (40) coupled to the interior of the casing such that the grounding structure and the casing (64) maintain a constant distance. 12. The terminator of claim 11, wherein the grounding structure has a pillar (40) coupled to the interior of the casing to maintain a constant distance between the grounding structure and the casing. 14. The terminal of claim 13, wherein the casing 64 has a conductive surface 76 therein and the post 40 is made of a conductive material such that the conductive surface and the grounding structure inside the casing are electrically connected to each other. . 15. A terminator according to claim 14, wherein the casing (64) has a conductive surface (76) therein and the pillar (40) is made of a conductive material such that the conductive surface and the grounding structure inside the casing are electrically connected to each other. 12. The apparatus of claim 11 further comprising a housing (100) for receiving the terminator, the housing having a series of grooves (108A) and (108B), each separated by adjacent ridges (106A) and (106B), As the grooves and the ridges extend in parallel with each other, the body 102 made of an insulating material, and the electrical contact elements 110A, 112A, 110B, 112B disposed in the grooves and on the ridges, Each contact element on the ridges is farther from a predetermined reference plane than each contact element in the grooves, and when coupled with the terminator the contact elements in the grooves are in electrical connection with the walls 32 of the grounding structure 22 and the The contact elements on the ridges consist of electrical contact elements 110A, 112A, 110B, 112B arranged to be in electrical contact with the contact elements 58 on the fingers 54 of the contact support member 44. Terminator. 12. The apparatus of claim 11 further comprising a housing (100) for receiving the terminator, the housing having a series of ridges (106) each separated by an adjacent slot (140), wherein the ridges and slots are It extends in parallel to each other and consists of a body 102 made of an insulating material, an electrical contact element disposed on each of the ridges 106, and a conductive plate 142 overlying at least one of the slots 140. And the conductive elements on the ridges and the conductive plates are farther away from the reference plane than the conductive plates, and the conductive plate overlying the slot when combined with the terminator is a wall of the grounding structure. A terminator arranged in electrical connection with the contacts and arranged in electrical contact with the contact elements (58) on the fingers (54) of the contact support member (44). A metal ground structure 22 having a plurality of upstanding walls 32 forming a plurality of channels 34 arranged side by side, and a plurality of fingers 54 received one by one in the channels 34 are forward. An insulated contact support member 44 'having a body 46' extending therefrom, and a conductor circuit board disposed on each of the fingers 54 so as to be at a level lower than the top surfaces of the walls 32; Electrical contact element 58, which can be connected one by one with conductors 88 on 86, and the grounding structure such that the electrical contact elements are electrically insulated from each other when grounding structure 22 is connected to a predetermined electrical potential. Terminator for a multi-conductor circuit board consisting of a mounting bracket (90) disposed in the ground structure for mounting on the surface of the circuit board. 20. The apparatus of claim 19, further comprising a housing (100) for receiving the ground structure, the housing having a series of grooves (108A) and (108B) each separated by adjacent ridges (106A) and (106B). A body 102 of insulating material in which the grooves and the ridges extend in parallel with each other, and electrical contact elements 110A, 112A (110B, 112B) disposed in and on the ridges, Each contact element on the buoys is further away from a predetermined reference plane than each contact element in the grooves, and when contacted with the ground structure, the contact elements in the grooves are electrically connected with the walls 32 of the ground structure and the ridges Terminator consisting of electrical contact elements (110A, 112A) (110B, 112B) arranged to be in electrical contact with contact elements (58) on the fingers (54) of the contact support member. 20. The apparatus of claim 19, further comprising a housing (100) for receiving the ground structure, the housing having a series of ridges (106) separated by adjacent slots (140), wherein the ridges and slots A body 102 of insulating material extending in parallel to each other, an electrical contact element disposed on each of the ridges 106, and a conductive plate 142 superimposed over at least one of the slots 140; The contact elements on the ridges and the conductive plates are further away from the reference plane than the respective conductive plates by the respective contact elements, and the plate 142 overlapping on the slot when combined with the grounding structure A terminal in electrical connection with the wall 32 of the grounding structure and arranged so that the contact elements on the ridges are in electrical contact with the contact elements 58 on the fingers 54 of the contact support member. . Formed of a substrate 24 having a top surface 30A and a bottom surface 30B, and a plurality of upstanding walls 32 extend from each of the top and bottom surfaces of the substrate, the walls on each side cooperate to form a grounding structure. A metal ground structure 22 forming a predetermined number of channels 34 arranged side by side across each face, and a plurality of fingers 54 housed one by one in the channels 34 of the ground structure forward. A pair of insulated contact support members 44 each having a body 46 extending therefrom, one on each side of the grounding structure, and each finger to be at a lower level than the top surfaces of the walls of the grounding structure. Terminator for a plurality of electrical conductors disposed on the poles (54) and connected one by one with the conductors, the electrical contact elements (58) being electrically insulated from each other when the grounding structure is connected to a predetermined electrical potential. 23. The apparatus of claim 22, further comprising a housing 100 for receiving the ground structure, the housing having a series of upper and lower ridges 106A, 106B, each separated by adjacent grooves 108A, 108B, The body 102 of insulating material in which the ridges and the grooves extend in parallel to each other, and electrical contact elements 110A, 110B, 112A, 112B disposed on the ridges and in the grooves, are provided on the ridges. The contact elements are spaced apart from a predetermined reference plane 130 disposed in the center of the housing farther than the respective contact elements in the grooves, and the contact elements in the upper and lower grooves 108A, 108B when combined with the grounding structure ( 112A, 112B are respectively electrically connected to the top surfaces of the walls 32 on the top and bottom surfaces of the ground structure 22 and the contact elements 110A, 110B on the ridges are the pair of contact support members 44. Contact elements 58 on the fingers 54 of Here terminator consisting of electrically connected the electrical contact elements arranged hagekkeum (110A, 110B, 112A, 112B). 23. The apparatus of claim 22, further comprising a housing (100) for receiving the ground structure, the housing having a series of upper and lower ridges (106), each separated by an adjacent slot (140); A body 102 of insulating material in which slots extend in parallel to each other, an electrical contact element disposed on each of the ridges 106, and a conductive plate 142 superimposed over at least one of the slots 140. And the electrical contact elements and the conductive plates on the ridges are each of the upper and lower container portions 106 when the respective contact elements are farther from the centerline of the housing than the respective conductive plates, and when combined with the ground structure. Contact elements of the pair of electrical contacts with the contact elements 58 on the fingers 54 of the pair of contact support members 44 and the conductive plates 142 are walls of the ground structure 22. Terminator arranged to be in electrical connection with the top surfaces of the field (32). There is a series of grooves 108A and 108B, each separated by adjacent ridges 106A and 106B, the grooves 102 and the body 102 of insulating material extending in parallel with each other, the grooves Electrical contact elements (110A, 112A) (110B, 112B) disposed on each of the ridges, wherein each contact element on the ridges is arranged to be farther away from a predetermined reference plane than each of the contact elements in the grooves Housing for terminator consisting of contact elements (110A, 112A) (110B, 112B). There is a series of ridges 106, each separated by an adjacent slot 140, a body 102 of insulating material in which the slots and the ridges extend in parallel with each other, and electrical contacts disposed on the ridges. An element and a conductive plate overlying at least one of the slots, the electrical contact element and the conductive plate being disposed so that each contact element on the ridges is farther from a predetermined reference plane than the conductive plate overlying the slot) 142 housing for terminator. A metal ground structure 22 formed of a substrate 24 having a plurality of upstanding walls 32 forming a predetermined number of channels 34 arranged side by side across the ground structure and the channels 34 An insulated contact support member 44 having a body 46 extending forwardly with a plurality of fingers 54 received one at a time, wherein each of the fingers has a hole 55 therein; A plurality of electrical conductors arranged in the hole 55 of the 54 and connected one by one with the conductor 16 and consisting of electrical contact elements 58 electrically insulated from each other when the grounding structure is connected to a predetermined electrical potential; Terminator for kids. 29. A terminator according to claim 27, further comprising a casing (64) surrounding said insulated contact support member such that the front edge of the casing is in line with the front face (44F) of said insulated contact support member (44).

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