Abstract: The invention relates a distribution rack, for cable distribution devices used in telecommunication and data technology. The distribution rack includes at least one base portion 1 and at least one swing frame 3 provided with termination modules 4 and pivotingly supported at the base portion 1 about a swing axis 13 provided at one side thereof. In order to improve the accessibility to the cable duct behind the swung-in swing frame and to facilitate wiring of the cutting and clamping contact elements 5 of the termination modules 4 with cable cores, the invention provides that the swing axis 13 of the swing frame 3 at the base portion 1 is retractably supported. Thereby, with the swing frame 3 retracted and swung-out, fully free accessibility to the cable duct 42 beside the base portion and behind the swing frame 3 is made possible. Further, the cutting and clamping contact elements 5 of the termination modules 4 on the swing frame 3 are particularly easily accessible.

Abstract: Method for acquiring network knowledge in the individual operating locations of a digital transmission network having a plurality of network nodes.Following a computer outage, digital signal connections set up via central computers can no longer be reconstructed within the individual network nodes, so that no emergency operation is possible.The method is intended to place every participating network node into the position of maintaining the original or momentary path of the digital signal connection given computer outage or to restore it or, respectively, to independently set up or alternately route a connection.At the start of the digital signal connection, the digital signal is provided with an identifier in every transmission direction in the transmitting network node, this identifier being supplemented in every following, through-connecting and terminating network node. This identifier can be evaluated in each of these network nodes.

Abstract: A thermal overload protection device for electronic components, in particular for the telecommunication and data technology. The overload device has a spring-elastic shorting link 6 and a melt element 13. Tripping of the shorting link 6 performed in dependence of the fusing process of the melt element 13. In order to obtain a SERVO FAIL SAFE behavior, the spring force of the shorting link 6 is arbitrarily high. Devices 15, 17, separate from each other, are provided, according to the invention, for separately tripping and actuating the shorting link 6.

Abstract: The invention relates to a device for the optical conductive connection of two optical waveguides 1, 2, comprising a sleeve body 3, 13 overlapping the ends of the optical waveguides, and being twistable and plastically deformable. In order to achieve a simple construction and handling of the device, the invention provides that the sleeve body 3, 13 is composed of an outer sleeve jacket 7, 17 with a continuous longitudinal slot. The sleeve jacket is twistable and elastically deformable. The inner side of the sleeve jacket, of support crosspieces 8, 18, form circular segments, in their cross sections, and enclosing a central through-opening 9, 19 for receiving the ends of the optical waveguides 1, 2.

Abstract: The invention relates to a wire connector for cable wires, in particular of telecommunication cables.The invention provides housing sections 2, 2' are constructed identically, and are adapted to be snap-fitted with each other after being rotated by 180 degrees relative to each other, that the crosspieces 6, 7 between the guide channels 8, 9 form the press-in sections, that the snap-fit elements are formed of the side walls 4, 5 of the housing sections 2, 2' extending parallely to the guide channels 8, 9 and that on the inner side of the longer side wall 4 is provided a receiving groove 11 for the other, shorter side wall 5 of the housing section 2, 2'.

Abstract: A voltage limiter arrangement, including a voltage limiter including a central connecting lead and outer connecting leads positioned on each side of the central connecting lead. A surge arrester magazine is provided including a surge arrester magazine housing and contacts for connection to leads of the voltage limiter. The surge arrester magazine is provided with an open upper end. A receiving member is provided including a receiving opening for accommodating the voltage limiter, the receiving opening including a bottom wall with openings for each of the central connecting lead and the outer connecting leads. The receiving member includes guide elements for guided insertion of the receiving member into the open end of the arrester magazine for guided connection of the central connected lead and the outer connecting leads with contacts of the surge arrester magazine. The surge arrester magazine open upper end preferably includes an inner wall contour corresponding to the guide means of the receiving member.

Abstract: The invention relates to a connector bank for telecommunication systems comprising connecting elements 4, 25, 26 for cable wires and comprising contact elements 10 for electrical connection of the connecting elements 4, 25, 26 with the circuit tracks of a printed-circuit board 20.The arrangement prevents damage due to connecting forces which are otherwise transferred to the contact elements when connecting the cable wires to the connecting elements 4, 25, 26. According to the invention the contact elements 10 are provided as separate components of a contact pin 11 and of a plug connector member 12 being formed as one piece therewith for connection with the connecting elements 4, 25, 26.

Abstract: The invention relates to a protective plug (1) for connector banks (20) of telecommunication and data systems, comprising a housing (2) for receiving protective elements (7, 8, 9) connected to establish an electrical connection to an earth rail (44) and with a disconnector contact (43) to a bifurcated contact (41) or to circuit tracks (10) provided on a plug tongue, resp. The disconnector contact (43) is provided with terminal contacts (53) for incoming and outgoing cable conductors. In order to provide a protective plug (1) which protects against overvoltages and serves as well as a fuse against overcurrents and for which the outside dimensions allow a close-fit construction of several protective plugs (1), the plug tongue (5) is a printed-circuit board (4, 4a) extending into the housing (2). Two housing compartments (21, 22) are formed inside the housing (2).

Abstract: The invention relates to a cutting/clamping contact (1) for contacting an insulated cable core (5), comprising two contact legs (2, 3) made of a blade-type, resilient metal material, between the inner sides (13, 14; 23, 24) of which an upwardly open contact slot (4) with an enlarged wire introduction section (7) is formed. In order to provide a cutting/clamping contact (1) which allows for contacting cable cores (5) having a thick insulation (6) as well as cable cores having a thin conductive core (12), in particular with a ratio of insulation to conductive core diameter larger than 3, the inner side (13, 14; 23, 24) of at least one contact leg (2, 3) comprises, in the wire introduction section (7) an inclined surface (8, 9) forming a cutting edge (10) directed into the wire introduction section (10).

Abstract: The invention relates to a mounting board (1) for receiving functional elements (8). In order to allow for an easy replacement of different functional elements (8). The mounting board is provided with cutouts (2), into which support elements can be inserted. The support elements (5, 25) accommodate the different functional elements (8) having different dimensions.

Abstract: A connector bank with two rows of insulation displacement contacts for connecting insulated conductors, in particular of cables for telecommunication and data systems, comprising a surge arrester magazine to be inserted into the connector bank. In order to provide a connector bank having a voltage surge protection and allowing connecting and disconnecting as well as testing the attached cable conductors at the insulation displacement contacts even with inserted voltage surge protection, the two rows of insulation displacement contacts are arranged on different sides of the connector bank. An insulation displacement contact of the first row is connected over a connecting element with an insulation displacement contact of the second row. The surge arrester magazine is arranged laterally approximately centrally between the two rows of insulation displacement contacts.

Abstract: The invention relates to an electro-optical flat-design display device, in particular to an LCD area, comprising a flat-design housing 1 having at least one line of display elements 10 forming the front 8 of the housing 1, and comprising a backlighting device disposed inside the housing 1 and assigned to the line of display elements 10. For reducing the heat load of the LCD display elements 10 and for simplifying the construction of the housing 1, it is provided, according to the invention, that the backlighting device includes a light-guide tube 12, 17 disposed inside the housing 1 and a light source 18 disposed at a light entrance opening of the light-guide tube 12, 17, that the light-guide tube 12 is made from transparent material and surrounded by a reflector material 14, and that the reflector material 14 comprises cutouts 15 assigned to the individual display elements 10 and serving as light-exit openings FIG. 2.

Abstract: The invention relates to a plug connector device for telecommunication and data systems, comprising a plug connector 1 and a connector bank 30. The connector bank 30 is formed of a housing with insulation displacement contacts 31 connected each to switching contacts 6. The plug connector 1 comprises a housing 2 with a connector tongue 4 supported therein and has contact tracks 5 on either side which can be inserted between two switching contacts 5 opposed to each other of the connector bank 30. The exterior distance B of two contact tracks 5 being smaller than the interior distance A between two stitching contacts 6.The plug connector 1 is provided such that there is no abrasion between the contact tracks 5 of the plug connector 1 and the switching contacts 5 of the connector bank 30 during the insert procedure. After the insert procedure, a contact connection with a sufficiently high contact force is established between the contact tracks 5 and the switching contacts 6.

Abstract: The invention relates to a connector bank for conductors, in particular of telecommunication and data systems, comprising a bank body 6 with at least one line of insulation displacement contacts 4 provided with contact slots 5 for the conductors 7.According to the invention, there is provided for connecting shielded cables 22 a shield connecting element 1 consisting of a U-shaped, bent sheet piece 2, the legs 3 of which are insertable into the contact slots 5 of two insulation displacement contact elements 4 and the base 17 of which is provided with a shield connecting contact 19 for connecting the shield cable 21 of the cables 22, the spacing of the legs 3 corresponding at least to twice the spacing of two adjacent insulation displacement contact elements 4.

Abstract: The invention relates to optical components for fiber-optic transmission system, e.g. attenuation element, filter, power divider, comprising at least two supports 50,51 for the fibers 53,54 and an adjusting member 52 movable therebetween. The invention is based on the object to provide an optical component of this kind suitable for remote control. The invention provides that the supports are formed as guide plates 50,51 and that the adjusting member is formed as adjustment plate 52 of dielectric material, that the adjustment plate 52 is movable in a guide space 57 formed between the guide plates 50, 51, and that at least one support plate 50,51 is provided with at least two electrode surfaces 55,56 building-up a dielectric field, said electrode surfaces 55, 56 being connected to a control system for voltage supply.

Abstract: This invention relates to a terminal unit for cable pairs in telecommunication systems, comprising an electrical connector made of two plastic bodies each having a cutting and clamping contact inserted thereinto. The cutting and clamping contacts extend into clamping slots of the connector for cable pairs. The connectors are affixed to a mounting frame for receiving said electrical connectors. The plastic bodies forming the contact housings are advantageously identical and preferably each receives a pair of cutting and clamping contacts. Each connector housing body is provided on its base face opposed to the clamping slots with latching elements for joining together two said plastic bodies to form a casing the casing is provided on two opposed outer faces with latching structures, by means of which the two said plastic bodies are releasably latchable in an aperture of a mounting frame to permit both said plastic bodies to protrude on either side from said mounting frame.

Abstract: Optical wave guides are interconnected with the use of two interfitting shell parts which when fitted together form a continuous tubular channel for receiving the wave guides between there. For this purpose a carrier shell part is provided with a continuous longitudinal groove of a size to accommodate a cover shell part and each part has a longitudinally extending receiving channel portion of complementary form which fit together and form a continuous receiving channel for the optical wave guides which are to be interconnected. After the wave guides are placed end to end in the longitudinally extending wave guide receiving channels defined in the carrier shell, a cover shell is engaged over the carrier shell in a manner which positions it complementary optical wave guide channel with the wave guide channel defined on the carrier shell portion. Wave guide channels are advantageously made with curved up portions at respective ends of the interfitting carrier shell and cover shell.

Abstract: The invention describes a method for optical communication of information between transmitter and receiver spatially separated from each other. The principle of heterodyne reception is utilized. A non-modulated optical carrier of a laser arranged on the receiving side is subdivided in a first fiber-optical coupler KE into two portions, the transmission path EMF and the local laser wave LL. In one branch, a displacement of frequency by the amount of .DELTA.f takes place. The non-modulated optical carrier passes through a one-mode fiber EMF in direction transmitting side and is modulated there with an effective signal in a modulator MOD (FIG. 1). This now modulated optical signal travels back to the receiving side, where it is converted with the local laser wave LL into an intermediate frequency band.

Abstract: A connecting strip or receiver has switch contacts formed between break contact flaps which are arranged at a distance or spacing from each other, two interconnecting housing parts define a plug-in channel for a switch or a test plug which makes an electrical connection.The break contact flaps are positioned at a defined distance between them by housing inner walls which also define a plug-in conneciton channel.

Abstract: The invention relates to a distribution bank for communication cables in particular a house incoming distribution bank. The distribution bank includes several plug accommodation sections formed each by four conductor plug sockets, one earth plug socket, connecting elements and plug sockets and being provided with test portions for test plugs. In order to obtain a simple electrical connection between the plug accommodation sections, the connecting elements and the test positions, the plug accommodation sections, the plug sockets and the connecting elements are arranged in parallel rows. A row of the plug accommodation sections is arranged centrally, and one row each of test plug sockets and connecting elements are arranged on both sides of the central row of plug accommodation sections. Connecting plates extend to the parallel rows and are plugged into the distribution bank.