Abstract: Ports including at least input and output signal lines are collected into port groups. For each port group three separate clock synchronized time division switches are connected respectively to the input signal lines, bus highways and the output signal lines. All time division switches of the system are synchronized by a system clock and each one is controlled by its own storage of selected addresses in time slot order. A plurality of bus highways is provided and the input time division switch connects signals to a specific bus highway of the system. A second time division switch selects the bus highway for connection to the output section of the port group. A third time division switch selects the output port to which the selected bus highway is connected. In one embodiment the bus highways directly connect the port groups. In another, a central inter-connect matrix is provided to make the connection between the first and second time division switches.

Abstract: Multiple conductor cables are connected to horizontally distributed component equipments within a vertical array inside a cabinet. The cables are brought into the cabinet through or near the bottom and a clear space is provided within the cabinet generally parallel to the arrays. Each array has a plurality of cables, each consisting of a plurality of conductors. Starting with the lowermost, the cables to connect to a given equipment are collected into a bundle by retainer means, preferably a resilient U-shaped clip which can be sprung to fit into a hole in a plate along a cabinet wall. The cables are terminated in connector means which are plugged into horizontally distributed mating connectors for each component equipment supported on a stress relief panel supported by the cabinet. The clip for each bundle of cables is generally at the level of the component equipment to which it attaches so that it carries most of the weight of the cables.

Abstract: Two data equipments are connected by switching equipment which supplies high speed lines for a modified data signal and a stuff control signal. A system clock or system clock derived signal is used in a stuffing pattern generator which generates a stuff control signal for one of the high speed lines. The stuffing pattern generator also controls the read terminal of a first buffer register receiving input data from a first equipment written into the register under the control of a clock generated from the system clock. The output from the first buffer register includes stuffing bits as well as data and the data and stuff signal is fed through a high speed line to a second buffer register. The write terminal of the second buffer register receives the stuff control signal to control input to the register and causes deletion of the stuff bits. The read terminal of the second buffer register is under control of the clock derived from the system clock to control the register output to the second equipment.

Abstract: An electrical connection adapter and method for using the same is provided for connecting the fixed electrical terminals of a unit which are positioned in a regular matrix with an array of parallel electrical conductors. An intermediate adapter provides parallel passages through an insulating housing in which formed flat conductors across the width of the passages provide spring elements to engage the terminal contacts of the matrix in good electrical contact within the passages. Intermediate connector elements having adapter portions considerably narrower than the passages provided. The adapter portions are fixedly connected to self-cutting and connecting contacts laterally offset from the centerlines of their adapter portions.

Abstract: An integral switch means on a printed circuit board is provided by a plurality of parallel conductor segments having insulating gaps which are aligned in a column transverse to the conductor tracks. Posts supported on the printed circuit board support and align a rigid support member for an elastomeric member having a plurality of conductor strips positioned to separately bridge the respective gaps of the connector segments on a printed circuit board when the elastomeric member is positioned against the printed circuit board. Spring biasing means extends between support posts and the rigid support member for normally urging the elastomeric member into the printed circuit board in position to close the switches. Actuator means is movably supported relative to the printed circuit board to cooperate with the support member to move the elastomeric member against the bias of the spring away from the printed circuit board.

Abstract: A transfer bus matrix provides a single channel of a plurality of conductors to which multiple inputs and multiple outputs are connected by ports or control gates which allow them to be selectively interconnected by control means. Individual matrices or groups of matrices may be involved, including a multistage matrix having individual substage matrices using a transfer bus. Each matrix may be monitored by monitor means having connections to each of the conductors and a multistage matrix may be monitored in each substage and arranged so that each single input may be selectively monitored at various stages throughout the multistage matrix.

Abstract: A patch module permitting selective on-line connection between alternative first sets of transmission lines and single second set of transmission lines and permitting access to the off-line first set. The module provides a selector switch for determining which of the first sets is on-line, and a disconnect switch for connecting the selected first set to the single second set. The off-line first set is connected to a wand receptacle for access.

Abstract: A patch module assembly consists of a two piece frame structure, which provides three parallel jack receptacles entering the frame through one end for receiving patch cord wand. The sides of the frame are closed by printed circuit boards which are electrically connected through plug connectors through the other end wall. The circuit boards support T-Bar.RTM. type switch wafers whose normally closed switches are in series in the various printed circuits between connectors. The printed circuitry also connects spring contacts at one of the wand support receptacles to one side of one of the switches. Another wand support receptacle has spring contacts connected to the opposite side of the switches. A third wand support receptacle has spring contacts connected to either one side or the other of the switches. The contacts of the respective receptacles mate with contacts on an insertable wand, which enable patch connection to other circuits.

Abstract: A patch module assembly consists of a two piece frame structure, which provides three parallel jack receptacles entering the frame through one end for receiving patch cord wand. The sides of the frame are closed by printed circuit boards which are electrically connected through plug connectors through the other end wall. The circuit boards support T-Bar.RTM. type switch wafers whose normally closed switches are in series in the various printed circuits between connectors. The printed circuitry also connects spring contacts at one of the wand support receptacles to one side of one of the switches. Another wand support receptacle has spring contacts connected to the opposite side of the switches. A third wand support receptacle has spring contacts connected to either one side or the other of the switches. The contacts of the respective receptacles mate with contacts on an insertable wand, which enable patch connection to other circuits.

Abstract: Various data systems as represented by several processing units have permanent multiple switch connections to a common set of peripheral devices. A coordinating actuator means is provided for each set of switches connecting together a peripheral device and a CPU so that the coordinating actuator means for all possible combinations may be conceived as being arranged in a matrix consisting of columns and rows, along one axis of which are arranged the CPU's and along the other axis of which are arranged the peripheral devices. The present invention provides a panel means having indicator elements arranged in a matrix pattern of columns and rows to simulate the switching matrix so that each column repesents a particular device of one kind, CPU or peripheral device, and each row represents a particular device of the other kind.

Abstract: Multiple sets of parallel flat resilient conductive switch blades arranged side-by-side support opposed contact pairs and in turn are cantilever supported by engagement of each blade at a position remote from its contact area in an insulating wall of a relatively rigid support frame. One of the blades of each pair is moved by actuator means engaging the end remote from the point of support. The actuator means rotatably supported on the frame provides a slot which closely engages the ends of at least some of the blades essentially in the plane of the slot so that actuator rotation opens and closes supported contacts.