Abstract: The invention relates to a method for synchronizing transmissions at a constant bit rate in ATM networks and circuit arrangements for carrying out the method, in which a time stamp T.sub.S is fed to the ATM cells which have been input on the receiver side, the data is output in a delayed fashion, the actual delay time (T.sub.A -T.sub.S) is compared with a prescribed desired value t.sub.V, and a correcting variable, which adjusts the clock frequency of a time base (14) counter to the error variable, is generated by a controller (13) on the basis of the error variable t.sub.R =t.sub.V -(T.sub.A -T.sub.S).

Abstract: An apparatus for connecting cable cores, in particular using insulation displacement connection technology, in particular for producing a branch lead from a primary cable, comprising an insulating body with contact holders. A connecting element 3 is introduced into the contact holders 2 of the insulating body 1 and has two contact elements 5, 6 in different wiring connection levels, at least one contact element 6 being connected to a slide 4 which is guided in the connecting region such that it can move and can be pushed in the wiring connection direction into the contact slot 19 in the contact element 6.

Abstract: A stationary housing for accommodating electrical arrangements, in particular cable-branching arrangements. The housing includes separately produced wall elements which are made of plastic and can be assembled in a positively locking manner on site, a dimensionally stable framework serving as carrier for the electrical arrangements an being enclosed by these plastic parts such that joints are produced on the side walls and the housing roof. The plastic parts are optionally stiffened to a further extent by corresponding profilings or corner enforcements and are formed of glass-fiber-reinforced polyester, polypropylene or polyethylene with appropriate coloring and UV-resistance. One person can easily assemble a housing of this type on site in a few minutes and, if required, dismantle it again for repair purposes.

Abstract: A telecommunications and data connector with a connector first side assembly having a first side base portion formed of plastic and defining a plurality of grooves. The connector first side assembly also includes a first side plurality of contact elements. Each of the contacts extend from a wire end toward an assembly connection end. Each of the first side contact elements is movable between a contact position, and a non-contact position. A connector second side assembly is provided which is substantially identical to the connector first side assembly. The connector first side assembly and the connector second side assembly are connectable in a mated position wherein individual contact areas of the first side plurality of contacts make electrical contact with the corresponding individual contact areas of the second plurality of electrical contacts. The contact assemblies each include a hermaphroditic connector for coupling the assemblies together.

Abstract: The present invention relates to the field of electrical connectors and in particular to a mounting assembly for terminal blocks with nip-clinch physical connectors where the mounting assemblies is adjustable to accommodate electrical termination blocks of different sizes.

Abstract: An electrical plug connector, including an upper housing portion 1, a lower housing portion 2 and a plug chamber 4 for a RJ plug. In the upper housing portion 3 contact elements to be wired with connecting wires are disposed. The inner ends of the connecting wires are connected with contact strips 7 projecting into the plug chamber 4 for contacting the RJ plugs. The plug chamber 4 is adapted as a separate housing portion 3 and is latchable with the lower housing portion 2 by connection elements 16, 17, 18, in at least two different positions. The contact strips 7 are bent off each in different directions into the plug chamber 4, depending upon the position of the plug chamber 4.

Abstract: A termination unit for telecommunication and data lines, including a front portion provided with an insertion opening, a frame, an electrical plug connector, a plug socket and contact elements for the lines. In order to simplify accessibility to the electrical plug connector of the termination unit, the front portion is adapted as one piece together with the frame and is provided with a removable access cover and that the electrical plug connector and the plug socket are disposed on the rear side of the removable access cover behind the insertion opening of a component unit disposed on the rear side of the front portion and connected to the plug connector with the plug socket.

Abstract: The invention relates to a plug connector for the telecommunication and data technique comprising RJ contacts disposed in a housing and insulation displacement contacts and contact strips connecting the latter. The object of the present invention, namely to improve an electrical plug connector of the type referred to hereinbefore such that its electrical parameters are substantially improved and satisfy the requirements for the transmission of high data rates, is achieved by that the contact strips are multiply and differently angled between the RJ contacts and the insulation displacement contacts, and are at least in the contact tongue area, in part not guided in one plane parallely to each other.

Abstract: A signalling pre-processor for receiving signalling from a line card of a telephone line. The pre-processor converting analog signalling into digital form and integrating the digital signal to remove noise spikes which would otherwise appear as false traffic. The system further includes bit packing for receiving digital signalling in the form of 8-bit bytes and forming 32 bit words, each 32 bit word containing the data from a single bit address of 32 of the 8-bit bytes. These 32-bit words are packed into a memory array until all bits of a given order for a time sample have been gathered. Signal processing is then performed on the 32 bit word to update a state machine for determining the signalling state of each telephone line.

Abstract: A digital cross connect device for telephone and data transfer systems includes a plurality of line cards, including line cards connected to a network line and line cards connected to a subscriber line. The network line and the subscriber line carry a signal including a data portion and a status signal portion. Signal separation is provided for separating the data portion from the status signal portion. A coder is provided for coding the status signals to provide status signal bit packets based on received status signals. A status signal time slot interchange is provided for receiving the status signal bit packets and transmitting the status signal bit packets, based on assigned time slots, to another line card. The status signal time slot interchange includes a connection memory having address locations corresponding to time slots, and a dual port memory for receiving the status signal bit packets and writing bit packets based on the address locations of the connection memory.

Abstract: The invention relates to a method for the digital, bidirectional data transmission on an optical waveguide. For either direction of the data transmission, light pulses having the same frequency are used. The pulses to be transmitted are reduced from an original width T.sub.b to a width T.sub.r, the pulse-to-pause ratio T.sub.r (T.sub.b -T.sub.r) having to be smaller than one. The second transmitter/receiver unit is allowed to transmit during a reception pause (T.sub.b -T.sub.r) only. In order to achieve an optimum distribution of the optical pulses on the optical waveguide 3, the first transmitter/receiver unit 1 measures the timing on the optical waveguide 3 and causes, if required, by a modify signal, the second transmitter/receiver unit 2 to a modified transmission time of its optical signals. Thereby, a control loop is established, automatically achieving an optimum pulse distribution on the optical waveguide, within certain limits (FIG. 3 ).

Abstract: The invention relates to a protective circuit for the protection of the user from overvoltage and overcurrent, in particular for telecommunication installations. Prior art protective circuits comprise a fuse connected into the line connection, and a surge arrester with a heat-sensitive protection device, forming a cross path between the current path of the line connection and the earth conductor, the heat-sensitive protection device disconnecting the cross path in case of excessive power, and connecting it to the earth conductor.In the protective circuit according to the invention, a response of the heat-sensitive protection device (5, 6) will cause disconnection of the cross path of the surge arrester (1, 2) and closing of a short-circuit cross path (7, 8) behind the fuse (3, 4) between the line connection (a, a'; b, b') and the earth conductor (E). The protective circuit can be accommodated in a miniature plug for application in telecommunication installations.

Abstract: The invention relates to a connecting block for connecting insulated cable conductors, in particular cable conductors of the telecommunication and data technology, comprising insulation displacement contact elements received in block bodies and arranged in lines. In order to provide a connecting block (1), wherein it is at any time possible to connect or disconnect cable conductors, without the block body (3, 4) impeding the connection of the cable conductors to the other block body (3, 4), at least one block body (3, 4) is provided with an axis of rotation (5), about which the block body can be swung out off the connecting block (1) or a connector arrangement is provided allowing relative movement between the block bodies.

Abstract: This invention relates to a connection device for providing a connection between on electrical cable terminated by a plug and electrically insulated wires. It has application, for example, in telecommunications where a telephone instrument is connected by a lead with an appropriate plug to a jack provided in a wall panel. The jack requires connection to telephone wires on the opposite side of the wall panel.

Abstract: An ultrasonic measuring device for determining motion parameters of moved bodies, in particular path, speed, acceleration, slip and the like, comprising first and second ultrasonic transducers supported in a housing. Each of the ultrasonic transducers (transmitter and receiver) having either a sound generator or a sound receiver positioned between two vibrating elements. A connecting element clamps a sound generator with a sound receiver between the vibrating elements. Each of the ultrasonic transducers being supported by support elements featuring bent-off portions arranged in a meander-type manner in turn (bent back upon itself) in the housing. One of the support elements, for each transducer, is arranged at the sound opening of the housing and is slidably mounted on a vibrating element.

Abstract: A telecommunications plug connector arrangement, comprising a connector, including a connector housing and a connector tongue. The connector supported by the connector housing and joined to the connector housing at a lower edge of the connector housing. The connector tongue has contact tracks. A connector/disconnector bank provided with parallel rows of clamping contact slots, each clamping contact slot including a contact element. A center row of plug openings with contact springs for receiving an assigned tongue with contact tracks is provided, the connector/disconnector bank being symmetrical about a longitudinal central axis. A projection connected to one side of the connector housing is provided, the projection extending beyond said lower edge of the connector housing.

Abstract: A thermal protection device for overvoltage suppressor which includes spaced contacts 6 mounted in overvoltage suppressor magazines 11 of communication systems. A bow-type spring 3 and a melt element 2 l are arranged with the overvoltage suppressor which is mounted in a chamber of a case body or housing 13. The melt element is pierced by at least one arm of the bow-type spring when an overvoltage occurs for short-circuiting the two contacts of the overvoltage suppressor. A thermal protection device with simple components prevents creepage currents between the bow-type spring and the contacts of the overvoltage suppressor 6, a chamber for the overvoltage suppressor is adjacent and abutting to a separate chamber formed in the case body for accommodating a bow-type spring. Between the two chambers there is a separating wall comprising a thermoplastic melt element.

Abstract: A splice cassette housing for optical waveguides has to be brought from an installation position, e.g. a socket-type housing, to a splice position. The incoming and outgoing optical waveguide cables fed with known splice cassette housings along the longitudinal sidewalls are disadvantageous for the free mobility of the splice cassette housing. In order to achieve a high degree of freedom in the mobility of the splice cassette housing, the incoming and outgoing optical waveguide cables 8 and 9 are usually fed separately from each other to the splice cassette housing in a common axis within a flexible hose. Further, a groove-type guide channel 11 in the shape of a member "9" is provided in the bottom 6 of the housing for a change in direction of one of the optical waveguide cables by 180.degree., in order to be able to feed the individual optical waveguides again from opposed directions to the splice position.