EP1107364A2 - Socket, connecting device, installation system, data cable manufacturing process and data cable - Google Patents

Abstract

The plug socket has connecting sockets into which the conductor end freed from material in which the conductor is embedded can be inserted directly or with connecting pins. The socket has a cable screening continuation. The distance of the connecting sockets from each other and from the screen continuation is selected so the impedance of the cable near the plug socket is essentially equal to that of the conductor in the transmission element. Independent claims are also included for the following: a connector for at least one data communications cable transmission element, an installation system, a method of manufacturing a data communications cable and a data communications cable.

Description

The invention relates to a socket, a connection device, Installation systems, which are a data transmission cable and the socket or the connecting device comprise, a method for manufacturing a data transmission cable and a data transmission cable.

For data transmission in the high frequency range (e.g. 3-100 MHz, 3-250 MHz or 3-600 MHz) have cables with one or several transmission elements in the form of a symmetrical Pair line or star quad line widely used found. To connect such cables to distribution panels, Devices, other cables etc. generally come with RJ45 sockets and connector for use. An overview of this gives "unilan manual of universal building cabling", Datwyler AG, 1998.

A data transmission cable is known from DE 196 36 287 A1, which out of four twisted in and with each other Pair lines is built. The two veins of each pair are embedded in an embedding. They each point own wire insulation. In the publication is also mentioned that the wire insulation can be omitted and the embedding can take over the insulation function.

An electrical installation system is known from EP 0 665 608 A2 known, which consists of a flat cable and a tapping device consists. The flat cable has a data transmission part on which for low transmission frequencies (<1 MHz) is designed. It has the shape of a not twisted shielded pair cable, whose wires with core insulation. The connection device points for stripping-free contacting of the wires Screw on with a contact tip that is in the area which comes to rest on the shield, an isolated one Have surface.

The inventors of the present invention have a disadvantage the data transmission cable used in the prior art for high frequencies including associated sockets and plugs recognized that connecting the cables is relatively complex is and takes a lot of time. Because in general must first the outer sheath of the cable. After that, in in most cases a shield made of metal tape and / or metal braid. The single ones Pairs or fours are now drilled, and the veins individually, mostly connected to insulation displacement terminals. Finally, the shielding is also connected. This The process takes several (typically three) minutes.

The invention has for its object this installation time to shorten and reduce the installation effort.

The idea of the solution is that no plug is connected to the Data transmission cable needs to be attached. According to In one aspect of the invention, the cable or a transmission element is used of the cable itself as a plug. For this The invention provides a suitable socket. According to Another aspect can be the cable or the transmission element Stripping free with the help of a connection device be connected. The invention also provides installation systems ready the combinations of the above Socket or connection device with particularly suitable Data transmission cables are. The invention gives finally such a data transmission cable and a corresponding manufacturing process. All items the invention preferably meets the requirements Category 5 (3-100 MHz), particularly preferred Category 6 (3-250 MHz) or Category 7 (3-600 MHz) (see standards EN 50173, IEC 61156 and pr EN 50288).

In particular, claim 1 is for a socket for manufacture a connector with a transmission element a data transmission cable in the form of a shielded, embedded, symmetrical pair or star quad, which itself serves as a connector. The Socket has connection sockets into which the from the embedded conductor ends directly or with Pins are insertable.

To allow plugging in, the line level and the connection level are oriented the same. This can e.g. by rotating the transmission element, by a rotatable design of the socket and / or by a Equipping the socket with excess connection sockets for different plug rotation angles. Preferably the conductors do not have their own core insulation on, so that the conductor embedding the insulation function takes over. However, if conventional data transmission cables with wire insulation additionally used for conductor embedding the ends of the conductors are not just the embedding of the conductors, but also to get rid of the wire insulation. The leaders are in all aspects and configurations the invention preferably made of solid metal, she can also be stranded wire.

Advantageous embodiments are in the subclaims specified.

According to claim 2, the socket with a shield extension equipped, which preferably the Encloses connection area. This helps to achieve favorable crosstalk properties.

In the prior art, twisting the pairs or foursome to connect a plug the electrical Values of the cable in the plug area deteriorated massively, especially with regard to crosstalk behavior, the impedance curve and the damping. These disadvantages can avoid the socket according to the invention. Because she does it does not require any twisting of the Drilling veins (The above mentioned, if necessary for Insert the necessary rotation of the transmission element is harmless in this regard). Second is according to the embodiment of claim 3, the distance of the Connection sockets from each other and from the shield extension chosen so that the line impedance in the range the socket essentially the impedance of the Line in the transmission element is the same. Unless none the geometric parameters of the line at the transition into the socket changes, this is achieved in that the Distance between the connection sockets equal to the conductor spacing in Transmission element is. But it increases, for example the diameter of the conductor in the plug-in area (approximately through Use pens that are larger in diameter than the leaders), the associated increase in capacity by a correspondingly larger spacing of the connection sockets can be compensated. Corresponding applies if there is a material in the socket is used, which has a larger electricity constant than the embedding has. The associated increase in capacity can also, for example, by larger Spacing of the connection sockets can be compensated. With a shielded pair or star quad cable is the impedance of the line not only through the Diameter and distance of the conductors and that between them dielectric is determined, but also by the Distance between conductors and shielding and that between Dielectric and shielding dielectric. Used for example, the socket is a material with higher Dielectric constant than that of embedding, so the associated increase in capacity, for example also by an increased radial distance Shield continuation can be compensated. Corresponding can also be associated with the use of thicker pens Increasing capacity by choosing a larger one Compensate for the radial spacing of the shield extension. Under an "essentially" given equality in others understood that the asymtotic values of impedance in the area of the socket not more than ± 15%, preferably not more than ± 10% and particularly preferably not more than ± 5% of the impedance of the transmission element differ.

According to claim 4, the socket has one for insertion suitable end of one end of the transmission element on. This can serve as a guide for the transmission element to be inserted serve and in the inserted state for one better mechanical connection of the transmission element with the socket.

According to claim 5, the recording also has the function when Insert the transmission element to contact the shield.

While with the above-mentioned socket and its configurations the plug-in movement and the associated Penetration of the conductor ends or connecting pins in the Connection bushes in the axial direction of the transmission element done, the invention is with its second aspect directed to a connection device in which the contact transversely to the axial direction.

In particular, the invention according to claim 6 provides a connection device for at least one transmission element a data transmission cable in the form of a shielded, embedded, symmetrical pair or star quad ready, the connection device comprising: Contact elements for piercing at least the embedding and for contacting the conductors, guides, which are the contact elements lead across the axial direction, a shield contact and a shield extension, which the contact elements and / or connecting conductors connected thereto wholly or at least partially encloses.

In principle, an embodiment is possible in which the Shield before inserting the transmission element in remove the image from the places where the contact pins are inserted. To the installation effort however, it is more advantageous to reduce if the shield is left on the transmission element - that is, can be pierced. In certain, under closer Embodiments described become an overall outer screen and / or pierced an outer cable jacket.

In order to pierce the shield and possibly the entire shield Short circuits between conductor and shield or overall shield to avoid, the contact elements are at least in the isolated area in which the shield and, if necessary, the entire screen in the inserted state comes to rest (claim 7).

The contact elements can have the form of pins that e.g. to create an insulation displacement connection with the Ladders are set up, for example by being at their contact ends with two cutting edges running diagonally inwards is equipped. But it is also possible to use pens To use contact tips or the like.

According to claim 8, the guides are in different directions and possibly arranged axially offset. This is particularly so for connecting the two lines of a star quad transmission element advantageous. For example the guides for the two contact elements one of the two Line of a star quad rotated 90 ° and axially offset from those belonging to the other line his.

According to claim 9, the connection device for stripping-free Connect a single transmission element set up. If the data transmission cable has several Has transmission elements are therefore to be connected to remove an existing outer jacket and / or overall shield and dissolve the bundle of transmission elements.

In contrast, the embodiment according to claim 10 is stripping-free Connecting a data transmission cable set up, without the connection jacket / overall shield being removed and / or the bundle of transmission elements is dissolved should be. Accordingly, the contact elements for Pierce the outer cable sheath, if present and / or overall screen. Depending on the embodiment is the connection device for connecting one or more or all transmission elements of the cable.

According to claim 11 is for connecting a data cable (also) the shield contact of the connection device for piercing the outer cable jacket and / or the Overall screen trained. The latter can e.g. omitted if instead of the transmission element shields the (with contacted this electrically conductive) overall screen becomes.

According to claim 12, the connection device for stripping-free Connecting a flat cable with several (e.g. four) transmission elements arranged next to one another in one plane educated.

Another variant is specified in claim 13, in which instead of a flat cable, a round cable with several (e.g. four) transmission elements arranged along the circumference of the cable is the basis. "Round" is not just here to understand in the narrow sense of "circular". Is meant rather that the cable is essentially in cross section extends to the same extent in two dimensions, while with the flat cable in cross-section, the extension in one dimension clearly exceeds that in the other.

As with the socket described above, the contact elements and the shield extension according to claim 14 preferably designed and arranged so that the impedance in the area of the connection device essentially is the same as that in the transmission element. Because of the details, especially the meaning of "essentially", be made to the above statements on claim 3.

In the prior art, connection devices are used Piercing technology for tapping continuous coaxial lines or shielded double cables (as with the entry mentioned EP 0 6656 608 A2) used. With symmetrical Wiring is at the high ones of interest here Frequencies (e.g. above 3 MHz) tapping from electrical Generally not possible for reasons. Rather goes it is generally only about cable end connections. The present invention proposes the piercing technique even with symmetrical shielded data transmission cables to use for the mentioned high frequencies. According to the embodiment of claim 15, the connection device corresponding to the inclusion of only one end of the transmission element, i.e. closes e.g. with the help of an end stop tapping a continuous Cable. Such an end stop advantageously defines the location of the cable end relative to the piercing site, so that the contacting at a defined distance from the End done. This is generally small; it is advantageous less than 5 cm, preferably less than 2 cm, and especially preferably less than 1 cm.

The fact that the cable end generally not shielded is because of the relatively small frontal area and the perpendicular orientation of the ladder to it Usually do not adversely affect the area. But should that possible cross-talk resulting from this source is reduced be, the connection device according to claim 16 a shield for the open end the transmission element or the data transmission cable exhibit.

Especially with round transmission elements and cables the difficulty may arise due to the rotational symmetry reveal that the location of the internal conductor is not known. However, the exact knowledge of this is required for contacting by piercing. An easy one One possible solution is the open face to look at the cut end of the element or cable, there the leaders are generally visible. A another option is the inner conductor layer outside e.g. to encode optically or mechanically, for example by a corresponding mark or the rotational symmetry canceling depression or elevation on the exterior of the Transmission element or the cable.

A particularly quick and easy installation is possible if the socket according to claims 1 to 5 together is used with a data transmission cable at to which the head of the transmission elements directly - d. H. without to have their own core insulation - in the embedding are embedded. The conductor ends can then be exposed namely simply by stopping the embedding. Accordingly, the invention according to claim 17 Installation system directed through the socket and a corresponding data transmission cable is formed becomes. According to claim 18 belongs to the installation system advantageous a special described in more detail below Data transmission cable, which is the subject of the claims 33 to 37 forms.

It should be noted that throughout the description and in particular in connection with the installation system Word "on" (e.g. with "a data transmission cable") not can only be understood in the sense of a numerical word, but also as an indefinite article. Of course it can claimed installation system - among other elements - Multiple data transmission cables and a variety of Include sockets.

Similarly, claim 19 is another installation system directed, which by the above Connection device according to one of claims 6 to 16 and a data transmission cable with one or more Transmission elements in the form of a shielded symmetrical Pair and / or star quad and an embedding is formed for the line. A "direct" embedding is advantageous, but not required here any existing additional puncture Core insulation hardly noticeable. Advantageous belongs to this installation system according to claim 21 the data transmission cable described in more detail below any one of claims 33 to 39.

a) die Leiter der Paar- bzw. Sternviererleitung werden in einem bestimmten Abstand voneinander, der größer als deren Berührabstand ist, mit Hilfe einer Drahtführung geführt; dabei wird keine Verdrehung vorgenommen;

b) die Leiter werden in einen im plastischen Zustand befindlichen Kunststoff eingebettet;

c) die Leiter werden mitsamt dem (noch plastischen) Einbettungskunststoff aus einer Extrusionsöffnung herausgeführt;

d) die Einbettung wird gehärtet (oder härtet ohne weiteres Zutun) ;

e) eine Abschirmung wird aufgebracht.

According to independent claim 23, the invention is also directed to a method for producing a data transmission cable with one or more transmission elements in the form of a symmetrical pair or star quad line. The process is defined by the specification of individual manufacturing steps. It goes without saying that these steps need not be carried out one after the other in time given the production that is customary for cables in an elongated production plant with a uniform feed. Rather, they generally take place at the same time, but at different points in the production system, which are achieved one after the other by the feed. With regard to a specific point on the cable, the steps are of course carried out one after the other:

a) the conductors of the pair or star quad line are guided at a certain distance from one another, which is greater than their contact distance, with the aid of a wire guide; there is no twisting;

b) the conductors are embedded in a plastic in the plastic state;

c) the conductors are led out of an extrusion opening together with the (still plastic) embedding plastic;

d) the embedding is hardened (or hardens without further action);

e) a shield is applied.

The shield can also be used before curing or before perfect hardening can be applied.

The above process steps only cover the Manufacture of a transmission element. To make a Cable with only one such element can e.g. still with a braid and / or an outer jacket be equipped. For a cable with several elements can these e.g. twisted together, with an intermediate jacket overmoulded, provided with a braid shield and / or an outer jacket.

The wire guide can be, for example Perforated plate with two or four at the corners of a square arranged holes act. The hole diameter is in generally slightly larger than the conductor diameter. On Tensioning the transmission element being manufactured can be done, for example, in that on the one hand the lead wires fed to the wire guide and on the other hand the hardened embedding with the embedded conductor wires acted on with opposing clamping forces become. Feed can be achieved by that the resilience, which the embedding including ladders pulling out the extrusion opening tends to be slightly larger than the opposite force is.

A thermoplastic is advantageous as an embedding plastic (especially based on polyethylene or polypropylene) in foamed or unfoamed form used. According to claim 22 then the hardening in step d) takes place by that the transmission element after exiting the extrusion opening is cooled, for example, in which it is immediately behind the extrusion opening through a water bath to be led. This measure leads to the earliest possible Fixing the ladder in the embedding.

According to claim 23, the shield is applied so that they are fully connected to the surface of the embedding is. For example, a shielding film can cover the entire surface be stuck on. The all-over connection has the advantage that the shield when cutting the cable or do not unscrew and remove transmission elements can.

Overmolding the conductor with plastic plastic in Step b) generally applies forces to them that - depending on whether the plastic from the outside in or is pressed from the inside out - look for the to reduce the conductor spacing specified by the wire guide or enlarge. Basically you can get this effect by trying to turn off a relative high wire tension and / or a relatively low feed rate chooses. Another solution is the Effect of squeezing or pushing the ladder apart compensate by using a wire guide which the leaders a correspondingly larger or smaller Distance specifies so that in the finished transmission element essentially gives the target distance (claim 24). Since the target distance in this solution a kind of dynamic equilibrium, they become Cable sections, for example when starting up the plant are manufactured, generally deviations Show from the target distance and therefore cannot be used. Accordingly, the process should be designed accordingly care should be taken to ensure that the dynamic state of equilibrium Reached as quickly as possible and with a relatively large one Accuracy is maintained.

Basically, it is possible to put the transmission elements in the non-twisted shape. Because of the Completely closed shielding arranged on the embedding can be a cable made of non-twisted transmission elements the requirements of category 5 and, if applicable, 6 are enough. According to claim 25, the transmission element but twisted after step d) or e). The shield is therefore preferably before the twist in itself applied so that it is also twisted. Alternatively it is also possible to only remove the shield after twisting to apply. These measures are contrary to conventional manufacturing processes, in which the Head of a pair or star quad twisted together be, and this stranding element only then embedded becomes. In the present embodiment, the Twisting of conductors and embedding only together.

While traditionally twisting the mechanical Stabilization of the pairs or star quads served and therefore no swirl lengths in the range of a few centimeters prevailing (e.g. 1 - 3 cm for twisted pairs), can In the present case, significantly longer swirl lengths for the twist in itself be selected, e.g. between 5 and 50 cm and preferably 10 and 40 cm. Such large swirl lengths make it easier the assembly, especially with the invention Socket.

According to claim 26 - as already mentioned above - several transmission elements to one data transmission cable summarized. Then an overall screen and / or an outer jacket applied.

According to claim 27, the transmission elements are preferred twisted together. Such a twist granted a twist in itself same twist length and same direction of rotation as the twisting together, if this is retained during the rotation becomes. If this twisting in itself is undesirable is, according to claim 28 in the twisting together the individual transmission elements are turned back.

With a complete reverse rotation (i.e. a reverse rotation by 100%) there is no twisting; it lies just a twist together. According to claim 29 a twist in itself on some or all of the transmission elements achieved in that an incomplete or an excessive reverse rotation is selected.

To avoid crosstalk between transmission elements Minimizing data transmission cables is claimed 30 the amount of backward rotation in some or all Transmission elements selected differently. For example can follow a data transmission cable with four pairs Back turns have: pair 1: 40%; Pair 2: 100%; Couple 3: 150%; Couple 4: 190%. With a twist length of twisting together The following twist directions result from 15 cm and lengths for twisting. Couple 1: +25 cm; Pair 2: no twisting; Pair 3: -30 cm; Couple 4: -16.7 cm. The reverse rotations are preferably in the range between 20% and 200%.

The configurations according to claims 31 and 32 are based on Manufacture of cables with multiple transmission elements directed by an outer jacket and an existing one The entire screen can be contacted. To this The purpose of the transmission elements is untwisted pair lines, their location and orientation stays the same along the cable. According to claim 31 is from the transmission elements formed a flat cable, wherein the pair lines are oriented to its flat side. That is, the one spanned by a pair of lines The plane lies parallel to the flat side of the flat cable. According to Claim 32 becomes a round cable from the transmission elements formed, the pair lines transverse to the radial direction of the cable.

One of those that can be produced with the method according to the invention Data transmission cable with one or more transmission elements in the form of a symmetrical pair and / or Star quad line embedding for the line and one Shielding is characterized in that the conductor are embedded directly in the embedding, the embedding ensures that the conductors are spaced apart and Management and embedding either together or are not twisted (claim 33).

For an easy connection of the cable, it is according to Claim 34 preferred that the conductors are not electrically insulated surface are embedded, so that the embedding alone for the conductor insulation.

With regard to further configurations of the cable according to claims 35-39 will refer to the above description of the manufacturing process Referred.

Fig. 1:

eine Querschnittsdarstellung eines Installationssystems mit einem, in eine Steckbuchse eingesteckten Übertragungselement;

Fig. 2:

eine Figur 1 entsprechende Darstellung eines anderen Ausführungsbeispiels, bei dem das Übertragungselement Verbindungsstifte aufweist;

Fig. 3:

eine Figur 1 entsprechende Darstellung eines Ausführungsbeispiels, bei dem zwei Steckbuchsen zu einer Verbindungsmuffe zusammengefaßt sind;

Fig. 4:

eine Axialschnittdarstellung eines Installationssystems mit einer Anschlußvorrichtung und einem angeschlossenem Übertragungselement in Form einer Paarleitung;

Fig. 5:

eine Figur 4 entsprechende Darstellung eines Ausführungsbeispiels mit einem Übertragungselement in Form eines Sternvierers wobei zwecks Veranschaulichung auch ein vor der Schnittebene liegendes Paar von Kontaktelementen gezeichnet ist;

Fig. 6:

eine Axialschnittdarstellung eines Installationssystems mit einer Anschlußvorrichtung zum Anschließen eines Flachkabels samt Kabel;

Fig. 7:

eine Axialschnittdarstellung eines Installationssystems mit einer Anschlußvorrichtung zum Anschließen eines Rundkabels samt Kabel;

Fig. 8:

eine Anlage zur Herstellung eines Datenübertragungskabels mit eingebetteten Leitern;

Fig. 9:

ein mit dieser Anlage herstellbares Datenübertragungskabel mit direkt eingebetteten Leitern.

The invention will now be described in more detail with reference to exemplary embodiments and the attached drawing. Features which are only shown in the drawing but are not expressly mentioned in the text also belong to the invention. The drawing shows:

Fig. 1:

a cross-sectional view of an installation system with a transmission element inserted into a socket;

Fig. 2:

a representation corresponding to Figure 1 of another embodiment in which the transmission element has connecting pins;

Fig. 3:

a representation corresponding to Figure 1 of an embodiment in which two sockets are combined to form a connecting sleeve;

Fig. 4:

an axial sectional view of an installation system with a connection device and a connected transmission element in the form of a pair line;

Fig. 5:

a representation corresponding to Figure 4 of an embodiment with a transmission element in the form of a star quad, for the purpose of illustration also a pair of contact elements lying in front of the sectional plane is drawn;

Fig. 6:

an axial sectional view of an installation system with a connecting device for connecting a flat cable including cable;

Fig. 7:

an axial sectional view of an installation system with a connection device for connecting a round cable including cable;

Fig. 8:

a system for producing a data transmission cable with embedded conductors;

Fig. 9:

a data transmission cable that can be produced with this system with directly embedded conductors.

In the figures, functionally similar parts are the same or similar reference numerals.

An installation system according to FIG. 1 comprises a data transmission cable with a transmission element 1 and one Socket 11.

The transmission element 1 has two at a constant distance extending conductor 2 of the same diameter, so forms a symmetrical pair line 3. With others (not shown) Four conductors are provided instead, which - viewed in cross section - on the corners of a Square and thus form a star quad. At the conductors 2 are solid wires, e.g. out Copper with a conductive surface. You are direct, i. H. without own core insulation embedded in an embedding 4. In other embodiments (not shown) Each conductor is equipped with a wire insulation. At the material of the embedding 4 is foamed or non-foamed insulating plastic on polyethylene or polypropylene base. The embedding 4 has outside the shape of a circular cylinder in which the line 3 runs. On the lateral surface of the embedding 4 is one closed shielding connected to the entire surface 5 applied, here a full-surface glued aluminum foil. The embedding 4 has the function of the conductor 2 in a certain distance from each other and to the shield 5 to fix and also for their electrical insulation to care. In the embodiment shown, the transmission element not twisted; others (not shown) it is, however, twisted as a whole.

The transmission element 1 has the following dimensions, for example: The diameter of the conductor 2 is 0.4 to 1 mm, here 0.64 mm. Your distance (from center to center calculated) is 1 to 2 mm, here a 1.4 mm. The The outer diameter of the embedding 4 is 2 to 4 mm, here 3.0 mm. The total diameter is 2.1 to 4.5 mm, here 3.2 mm. The transmission element 1 has a standard impedance in the range from 75 to 150 Ω, here 100 Ω. It is preferable designed for stationary building cabling, can but alternatively designed as a flexible connection cable his.

In order to be able to serve as a plug for the socket 11, the transmission element 1 is processed as follows: First, it is cut off across the axial direction. Then at the end a short piece (e.g. 5 mm) of the embedding 4 together with shield 5. As a result, the ladder 2 a corresponding piece freely from the embedding 4 and form pins.

The socket 11 has a plug-in plate 12 and one Jack 13, which together a receptacle 14 for the end of the transmission element inserted in the axial direction 1 form. The plug-in plate 12 is with two (at one Star quad: four) connecting sockets 15 equipped Distance corresponds to the conductor distance. They are designed contact the exposed ends of conductor 2, e.g. with the help of spring elements. The jack 13 has an inner diameter that is slightly larger than that Outside diameter of the transmission element 1 is. In the Jack 13 is a ring-shaped spring Screen tap 16 arranged when inserting the transmission element 1 the shield 5 almost along the entire length Scope contacted. One with the screen tap 16 electrically connected shield extension 17 covers tubular the mating area. A line extension 18 continues line 2 behind the plug-in area. The plug-in plate 12 and the socket 13 are made of insulating Plastic, which is e.g. for one Hard plastic can act. The socket 11 can e.g. Part of a patch panel with a large number such sockets or part of an outlet.

The arrangement of connection sockets 15 and line extension 18 as well as shield tap 16 and shield extension 17 is chosen so that the impedance in the plug area and in the continuation area essentially the impedance corresponds to the transmission element 1. In the shown Case has the material of plug-in plate 12 and plug-in plate 13 a larger dielectric constant than that of Embedding 4, which leads to an increase in capacity in the socket area would lead. To compensate for this is the Shield extension with a conically increasing outwards Diameter. An impedance jump will avoided.

The installation system according to Figure 2 corresponds to that of Figure 1, but the exposed ends are the conductors 2 with sleeve-like connecting pins 6 for insertion in the connecting sockets 15 equipped. The connecting pins 6 can for example be pressed onto the conductor ends his. The connection sockets 15 have a corresponding larger diameter. The equipment with the connecting pins 6 gives the conductor ends greater stability in the context of the plugging process and is therefore especially for suitable plug connections that are often solved and to be reinserted.

In the installation system according to Figure 3, which of the Figure 1 corresponds and also with connecting pins according to Figure 2 can be equipped, two sockets are too a connecting sleeve 11 'united. Instead of a plug-in board a sleeve part 12 'is provided here, which continuous connection sockets 15 and one on each side Has socket 13 with screen tap 16. The shield extension 17 connects the two screen taps 16; it initially widens conically from both sides and runs cylindrical in the middle part. As shown in Figure 3 is, two transmission elements 1 without Impedance jump connected to a continuous line become.

The installation system according to Figure 4 is a connection device 21 and a transmission element 1 are formed, which, as in FIGS. 1 to 3, is a shielded one symmetrical pair line 3 is. The difference to the previously discussed embodiments the conductors 2 are not embedded directly in the embedding 4, but covered with a thin wire insulation 7. At other (not shown) embodiments are not Core insulation available.

The transmission element 1 is on the outside with a longitudinal, raised and color-coded marking 8, which is in a defined position to the embedded Pair line 3 is located. It is here because Intersection of the center perpendicular to that of the pair line 3 spanned level with the jacket of the transmission element 1.

The connection device 21 has a bed-like receptacle 22 with elastically resilient side walls 23. These are at a height above a base point 24 that corresponds to the radius of the Corresponds to transmission element 1, each with a recess 25 equipped. The transmission element 1 will inserted and pressed in through the open side of the receptacle 22, until it resiliently deforms the intake 22 engages in the recess 25. The connection device 21 is at least in the area of pressure surfaces near the Recess 25 equipped with a metallic surface, those with the transmission element 1 inserted in pressure come with its exposed shield 5 and thus Represent shield contacts 16 '. All of them are advantageous Inner walls of the receptacle 22 with a conductive surface equipped to a closed at least three sides Shielding form.

To contact the conductor 2 are pin-shaped contact elements 26 provided, which by means of attachable guides 27 in the transmission element 1 are pressed in while doing the Shield 5 and embed 4 until they penetrate with their respective contact end 28, the respective conductor 2 to contact. The contact end 28 is an arrangement here two, facing each other and converging Clamping cutting 29. The contact elements 26 are in their middle area equipped with a contact element insulation 30, what short circuits between the shield 5 and avoid the conductors 2 when pressed in. A Shield extension 17 'closes the open side of the Recording 22 shielding and forms a tubular Shield housing for the contact elements 26 and one (not shown) line extension. The shield contacts 16 ', the metallic conductive side walls 23 and the shield extension 17 'are designed so that the Transition from the transmission element 1 to the via the contact elements 26 lead out leads no impedance jump.

The receptacle 22 is closed on one end, on the others, however, open (not shown). The closed one Front side serves as a stop for the end of the to be inserted Transmission element 1. It defines the distance the contact point to be produced with the contact elements 26 from the cable end. It is also used for electrical Shielding the open end face of the transmission element 1. For this purpose, it has one with the shield contact 16 ' electrically connected metallic shield plate, whose surface facing the cable to avoid short circuits with the conductors 2 an insulating surface Has. Otherwise, the execution of the exemplary embodiments from Figures 1 to 3 also on the installation system from Figure 4 to.

The installation system according to FIG. 5 largely corresponds 4, but it is the transmission element 1 around a star quad 3 '. To contact of the additionally available pair of conductors is here another pair of contact elements 26 'is provided, which opposite the first pair 26 with a corresponding guide 27 'rotated by 90 ° and axially offset. Corresponding is also a second one, rotated by 90 ° Shield continuation 17 'provided.

The installation system of Figure 6 is used for connection one or more transmission elements 1, which are part of a Flat cables 31 are without an outer jacket 32 a total screen 33 would have to be removed. Within of the outer jacket 32 and the overall screen 33 several - here four - transmission elements in a plane next to each other 1 each with a pair line 3. The latter are oriented so that the plane spanned by them runs parallel to the flat side of the flat cable 31. The Contacting of the conductor 2 takes place from the flat side as in the exemplary embodiments according to FIGS. 4 and 5, with the proviso that the contact elements 26 ″ are sufficient are long to include the outer jacket 32 and to be able to penetrate the entire screen 33.

The shield tap 16 '' is here by shield contact pins 34 realized, which on the outside of the flat cable 31 between and placed next to the individual transmission elements 1 and through the outer jacket 32 and the overall screen 33 are pressed and contact the latter. There the overall screen 33 on the individual shields 5 of the transmission elements 1 rests and so in electrical connection with this, the individual shields are hereby 5 contacted. As with the exemplary embodiments of Figures 3 and 4 is for each of the connected Pair lines 3 a shield extension 17 '' is connected to the screen tap 16 ''. in the the rest make the comments on FIGS. 1 to 5 also to the embodiment of FIG. 6, in particular what the lack of an impedance jump, the end stop, the front shielding of the cable, etc.

The exemplary embodiment according to FIG. 7 is largely the same 6, but is based on a flat cable instead a round cable 31 ', which in turn has several transmission elements 1 in the form of shielded, non-twisted pair cables 3 has. These lines 3 are contacted each parallel to the radial direction (based on the Center of the respective transmission element 1). To this Purpose are the pair lines 3 within the round cable 31 'oriented in such a way that the one you have opened Plane runs perpendicular to the radial direction mentioned. Also shield contact pins 34 'and shield extensions 17 '' run radially outwards.

FIG. 8 illustrates a manufacturing plant for an in Figure 9 shown data transmission cable 32 '. A first one Plant part 41 for producing a transmission element 1 is on the one hand by unwinding devices 42 for the conductor wires 2 and, on the other hand, a winder 43 limited for the finished transmission element 1. The two Winding devices 42, 43 generate the necessary tension as well the necessary feed. The two conductors 2 are through a wire guide 44 guided at a distance from one another, which is slightly larger than the target distance of the conductor 2 in the finished Transmission element 1 is. Head 2 can be used with or can be used without wire insulation. Then follows the introduction of thermoplastic into an injection chamber 45 Embedding plastic (e.g. foam PE) that overlaps its plasticizing temperature. By feeding of the plastic, the conductors 2 are pushed together a little, according to the later target distance. Then the Leaving conductor 2 together with embedding plastic from one Extrusion opening 46, the width of the nominal diameter of the Transmission element 1 (still without shielding) corresponds. Then a water bath 47 for cooling the embedding plastic go through so that it freezes. Finally, at 48 the shield 5 is covered by the entire surface Glued an aluminum foil.

In a second part 49 of the production plant, in FIG one stranding machine 50 the stranding of several (here four) transmission elements 1 to a cable 31 ''. To achieve different in-itself twists here a different one for each of the individual transmission elements 1 Reverse rotation selected. Then it will be like this formed stranding element at 51 with an overall screen 33, e.g. a braid shield and at 52 with an outer jacket 32 coated.

Figure 9 shows a cable made with this system 31 '' with twisted pair cables 3 with direct (i.e. without Core insulation) embedded conductors 2. The different Twists are indicated by arrows. Regarding the details refer to the above statements Figure 8 referenced.

Overall, the invention allows a significant reduction installation time and effort. For example, allowed an installation system with sockets according to Figure 1 and Data transmission cables according to Figure 9 a shortening of the Installation time per connection to approximately 1 minute. Corresponding applies to the installation systems according to the figures 4 to 7.

REFERENCE SIGN LIST

1

Transmission element

2nd

ladder

3rd

Pair line

3 '

Star quad lead

4th

Embedding

5

shielding

6

Connecting pin

7

Core insulation

8th

mark

11

Socket

11 '

Connection sleeve Fig. 3

12th

Pegboard

12 '

Sleeve part Fig. 3

13

Jack

14

admission

15

Connection socket

16

Screen tap

16 '

Shield contact

16 ''

Shield contact

17th

Shield extension

17 '

Shield extension

17 ''

Shield extension

18th

Line extension

21

Connecting device

22

admission

23

Side wall

24th

Base

25th

deepening

26

Contact element

26 '

Contact element

27

guide

28

Contact end

29

Clamping edge

30th

Contact element insulation

31

Flat cable

31 '

Round cable

31 ''

Data transmission cable

32

Outer jacket

33

Overall screen

34

Shield contact pin

34 '

Shield contact pin

41

Transverse system, first part

42

Unwinder

43

Take-up device

44

Wire guide

45

Injection chamber

46

Extrusion opening

47

Cooling device

48

Device for applying the shield

49

Manufacturing plant, second part

50

Stranding machine

51

Device for applying the overall screen

52

Device for applying the outer jacket

Claims (39)

Socket for establishing a plug connection with a transmission element (1) of a data transmission cable (32, 32 ', 32' ') in the form of a shielded symmetrical pair or star quad (3, 3 '), which is embedded in an embedding (4), the Transmission element (3, 3 ') itself serves as a connector, and the socket (11, 11 ') connecting sockets (15) has, in which those of the embedding (4) exposed Ends of the line (3, 3 ') directly or with connecting pins (6) provided can be inserted. Socket according to claim 1, which with a shield extension (17, 17 ') is equipped. A socket according to claim 2, wherein the distance the connecting sockets (15) from each other and from the Shield extension (17) is selected so that the Impedance of the line in the area of the socket (11, 11 ') essentially the impedance of the line (3, 3') in the transmission element (1) is the same. Socket according to one of claims 1 to 3, which one for inserting one end of the transmission element (1) has a suitable receptacle (14). Socket according to claim 4, which is formed is that when the transmission element (1) is inserted in the receptacle (14) contacted the shield (5) becomes. Connection device for at least one transmission element (1) of a data transmission cable (31, 31 ', 31'') in the form of a shielded symmetrical pair or star quad (3, 3'), which is embedded in an embedding (4), the connection device ( 21) has the following: Contact elements (26, 26 ') for piercing at least the embedding (4) and for contacting the conductor (2) of the line (3, 3'); Guides (27) through which the contact elements (26, 26 ') are guided transversely to the axial direction of the transmission element (1); a shield contact (16 ', 16''); and a shield extension (17 ', 17'') which at least partially surrounds the contact elements (26, 26') and / or connecting conductors connected thereto. Connection device according to claim 6, in which the Contact elements (26, 26 ') for piercing the Shielding (5) of the transmission element (1) and possibly of an overall screen (33) at least in its middle Area are insulated to prevent short circuits between conductors (2) and shielding (5) or overall shield (33) to be avoided. Connection device according to claim 6 or 7, in which the guides (27) in different directions and are optionally axially offset. Connection device according to claim 7 or 8, which for Stripping-free connection of a single transmission element (1) is formed. Connection device according to claim 7 or 8, which for Stripping-free connection of the data transmission cable (31, 31 ') and the contact elements (26 ') for piercing an outer one as well Cable shield (33) and / or an outer cable jacket (32) are formed. Connection device according to one of claims 7, 8 or 10, in which for connecting a data transmission cable (31, 31 ') the shield contact (16 '') for piercing an outer cable shield (33) and / or an outer cable sheath (32) is. Connection device according to claim 10 or 11, which for stripping-free connection of a flat cable (31) with several, arranged side by side in one level Transmission elements (1) is formed. Connection device according to claim 10 or 11, which for stripping-free connection of a round cable (31 ') with several, arranged along the circumference of the cable Transmission elements (1) is arranged. Connection device according to one of claims 6 to 13, in which the contact elements (26, 26 ') and the shield extension (17 ') are designed so that the impedance in the area of the connection device (21) essentially that in the transmission element (1) equal. Connection device according to one of claims 6 to 14, which for receiving one end of the transmission element (1) or data transmission cable (31, 31 ', 31' ') is set up so that the contacting in one defined distance to the end. A connector device according to claim 15, which is a shield for the front end of the transmission element (1) or data transmission cable (31, 31 ', 31' '). Installation system, formed by a data transmission cable (31, 31 ', 31' ') with one or more Transmission elements (1) in the form of a shielded symmetrical pair and / or star quad (3, 3 '), which is embedded in an embedding (4), and a socket (11, 11 ') according to one of claims 1 until 5. The installation system of claim 17, wherein the data transmission cable (31, 31 ', 31' ') according to one of the claims 33 to 39 is formed. Installation system, formed by a data transmission cable (31, 31 ', 31' ') with one or more Transmission elements (1) in the form of a shielded symmetrical pair and / or star quad (3, 3 '), which is embedded in an embedding (4), and a connection device (21) according to one of the claims 6 to 14. The installation system of claim 19, wherein the data transmission cable (31, 31 ', 31' ') according to one of the claims 33 to 39 is formed. Method for producing a data transmission cable (31, 31 ', 31'') with one or more transmission elements (1) in the form of a symmetrical pair or star quad (3, 3'), with the following steps: a) guiding the conductor (2) of the pair or star quad line (3, 3 ') without twisting and at a certain distance from one another, which is greater than the contact distance, with the aid of a wire guide (44); b) embedding the conductor (2) in the plastic state; c) leading the conductors (2) with the embedding plastic out of an extrusion opening (46); d) hardening the embedding plastic; e) applying a shield (5). 22. The method of claim 21, wherein the curing is by Cooling the embedding plastic after the exit from the extrusion opening (46). The method of claim 21 or 22, wherein the shield (5) is applied so that it covers the entire surface with the surface of the embedding (4) is connected. A method according to any one of claims 21 to 23, wherein the distance specified by the wire guide (44) the conductor (2) is chosen smaller or larger than their target distance in the finished transmission element (1) is. A method according to any one of claims 21 to 24, wherein the transmission element (1) after step d) or e) is twisted. A method according to any one of claims 21 to 25, wherein several transmission elements (1) in one data transmission cable (31, 31 ', 31' ') can be summarized and on this an all-encompassing shield (33) and / or an outer jacket (32) is applied. The method of claim 26, wherein a plurality of data transmission elements (1) twisted together. The method of claim 27, wherein the twisting together a reverse rotation of the individual transmission elements (1) is done. 29. The method of claim 28, wherein a twist in itself some or all of the transmission elements (1) is achieved in that an incomplete or an excessive reverse rotation is selected. The method of claim 28 or 29, wherein the extent the reverse rotation on some or all of the transmission elements (1) is selected differently. The method of claim 26, wherein the plurality of untwisted Transmission elements (1) with one each Pair cable (3) a flat cable (31) is formed, wherein the pair cables (3) to the flat side of the flat cable (31) be oriented. 27. The method of claim 26, wherein a plurality of untwisted Transmission elements (1) each with a pair cable (3) a round cable (31 ') is formed, whereby the pair lines (3) transverse to the radial direction of the cable (31 '). Data transmission cable with one or more transmission elements (1) in the form of a symmetrical Pair and / or star quad (3, 3 '), an embedding (4) for the line (3, 3 ') and a shield (5), the conductor (2) of the pair or star quad (3, 3 ') directly in the embedding (4) are embedded, characterized in that the embedding (4) for the spacing between the conductors (2) and for shielding (5), and that the Twisted line (3, 3 ') together with the embedding (4) or that the line (3, 3 ') and the embedding (4) are not twisted. A data transmission cable according to claim 33, wherein the conductors (2) with an electrically non-insulated surface are embedded in the embedding (4), so that this alone ensures the insulation of the conductors (2). A data transmission cable according to claim 33 or 34, which several transmission elements (1) and an all-encompassing Shield (33) and / or an outer jacket (32). The data transmission cable of claim 35, wherein some or all of the transmission elements (1) are twisted and the twist length of the twist at least some of these transmission elements (1) are different from each other. Data transmission cable according to claim 35 or 36, which rotates the transmission elements (1) together are. A data transmission cable according to claim 35, which the Form of a flat cable (31) with untwisted pair cables (3) as transmission elements (1), which for Flat side of the flat cable (31) are oriented. A data transmission cable according to claim 35, which the Shape of a round cable (31 ') with untwisted pair cables (3) as transmission elements (1) that cross are oriented to the radial direction of the cable (31 ').

Images