Abstract: The present disclosure relates to a jack assembly including a jack mount having a front side and a rear side. A jack of the assembly is adapted to be slidably mounted in a jack receiving region of the jack mount. The jack assembly also includes a plurality of cross-connect contacts, and a rear interface assembly. The rear interface assembly includes a dielectric cover piece and a plurality of rear connectors that project outward from the dielectric cover piece.

Abstract: A DSX system for receiving removable jack inserts is disclosed. The system includes a plurality of chassis rearward facing cross-connect arrays and rearward facing IN/OUT arrays. A first circuit board section and a second circuit board section are electrically connected to the arrays. The first circuit board section is positioned behind the removable jack inserts. The second circuit board section is positioned behind the first circuit board section and in front of the cross-connect array and the IN/OUT array.

Abstract: A DSX system arranged to receive a plurality of high-density chassis is disclosed. The chassis include back planes having rear access IN/OUT fields and rear access cross-connect fields. The rear access fields are electrically connected to termination panels located in respective IN/OUT regions and cross-connect regions. Each of the regions includes cable management channels within which system cables are routed.

Abstract: A performance monitoring access device for a DSX system is disclosed herein. The monitoring device provides connection locations for readily connecting digital equipment to performance monitoring equipment. The monitoring devices allows for dual performance monitoring of digital equipment.

Abstract: The present disclosure relates to a digital cross-connect device having a jack assembly including first and second jacks mounted in a jack receiving region of the digital cross-connect device. The jacks each include a column of ports. Each column of ports includes an in-port, an out-port, a monitor-in-port and a monitor-out-port. The in, out, monitor-in and monitor-out ports of the first jack are vertically staggered relative to the in, out, monitor-in and monitor-out ports of the second jack.

Abstract: The present disclosure relates to a jack assembly including a jack mount having a front side and a rear side. A jack of the assembly is adapted to be slidably mounted in a jack receiving region of the jack mount. The jack assembly also includes a plurality of cross-connect contacts, and a rear interface assembly. The rear interface assembly includes a dielectric cover piece and a plurality of rear connectors that project outward from the dielectric cover piece.

Abstract: The present disclosure relates to a jack assembly including a jack mount having a front side and a rear side. The jack mount has top and bottom supports defining a jack receiving region that opens outward toward the front side of the jack mount. A jack of the assembly is adapted to be slidably mounted in the jack receiving region defined between the top and bottom supports of the jack mount. The jack includes a jack body formed of a dielectric material, and a plurality of electrically conductive tip and ring springs. The jack body defines a plurality of bores sized to receive plugs having tip and ring contacts. The tip springs are adapted to make electrical contact with the tip contacts of the plugs when the plugs are inserted within the bores, and the ring springs are adapted to make electrical contact with the ring contacts of the plugs when the plugs are inserted within the bores.

Abstract: The present disclosure relates to a jack assembly including a jack mount having a front side and a rear side. The jack mount has top and bottom supports defining a jack receiving region that opens outward toward the front side of the jack mount. A jack of the assembly is adapted to be slidably mounted in the jack receiving region defined between the top and bottom supports of the jack mount. The jack includes a jack body formed of a dielectric material, and a plurality of electrically conductive tip and ring springs. The jack body defines a plurality of bores sized to receive plugs having tip and ring contacts. The tip springs are adapted to make electrical contact with the tip contacts of the plugs when the plugs are inserted within the bores, and the ring springs are adapted to make electrical contact with the ring contacts of the plugs when the plugs are inserted within the bores.

Abstract: A digital signal cross-connect module has a dielectric faceplate with a plurality of ports. The plurality of ports includes at least two linear arrays of ports each including a monitor jack port and two access ports. The arrays are positioned vertically and parallel to one another. The ports are divided into three transverse fields. All monitor ports are positioned in a first transverse field. The access ports are positioned in second and third transverse fields with the second and third transverse fields vertically offset from each other to increase a horizontal density of ports within the module.

Abstract: An apparatus is disclosed for providing access to a plurality of telecommunications lines and for providing continuous monitoring access to the telecommunications signals on the lines. The apparatus includes a frame which carries a plurality of normally closed contacts and monitor ports and corresponding monitor circuits for providing continuous access to the telecommunications lines. The telecommunications lines are terminated on the normally closed contacts. A plurality of modules may be releasably attached to the frame with electrical circuit elements on the modules breaking the normally closed contacts to create a new signal path through the module. The modules need only be attached to the frame when direct access to the signal is desired.

Abstract: A non-invasive testing system for video signals includes a jack having a monitor conductor connected across an amplification circuit to a central conductor. The amplification circuit amplifies the power of a signal drawn off of the central conductor such that the power level at the monitor conductor is substantially equal to the power level on the central conductor. When it is desired to test a power level of a signal being produced by a video source, test equipment is connected to the monitor conductor to permit non-invasive testing of the signal.

Abstract: A card is provided for insertion in a telecommunications chassis. The card includes two sets of ports each having tip and ring contacts. The normal springs of the first set are electrically connected to normal springs of the second set.

Abstract: A jack module assembly includes at least two jack modules carried in a dielectric frame. The frame holds the modules in co-planar alignment. The frame has a width approximate to a width of the modules.

Abstract: A jack assembly is disclosed including a jack having a means for releasable attachment to a mount. The jack further includes a body with means for connection to jack plugs and a circuit board having a plurality of contact points disposed on the first and second sides of the circuit board. Also included is a mount having a plurality of exposed contact members arranged in a predetermined array so that when the jack is inserted into the mount each electric contact point is in electrical communication with a discrete member of the contact members on the mount.

Abstract: A fail-safe device is provided for use with a thyristor having a main body sandwiched between electrically conductive end plates. The fail-safe device includes a spring body formed of electrically conductive material having contact surfaces bent about a central fold. The thyristor is placed between the contact surfaces with the end plates in electrical opposition to each contact surface. A conductor plate is disposed between one of the end plates and one of the contact surfaces. The conductor plate includes a lead for electrical connection to the circuit to be protected. The spring body includes a lead for electrical connection to an electrical ground. A dielectric spacer is disposed between the conductor plate and the contact surface. The dielectric spacer is selected to deform in response to an elevated temperature generated by the thyristor during an over-voltage condition.

Abstract: The present invention pertains to a fixture for terminating a miniature coaxial cable with a connector, and a kit for use with the fixture. The coaxial cable includes a center conductor and the connector has a connector center conductor which has a pin-shaped first end and a receiving member for receiving the central conductor of the coaxial cable. The fixture for terminating the coaxial table includes a base and a first beam and a second beam for holding the pin-shaped first end. The fixture also includes a third beam for holding the coaxial cable so that the center conductor of the coaxial cable can be inserted in the receiving member of the connector center conductor. The kit includes a working surface and a tray for holding parts of the connector.

Abstract: A make-before-break edge connector receives an edge portion of a printed circuit board of predetermined thickness. The edge connector includes first and second spring contacts disposed as an opposing pair. Each of the spring contacts includes an entrance end, an intermediate portion and a termination end. At the intermediate portion, the spring contacts include normally closed spring contacts. At the entrance end, the spring contacts include normally open spring contacts.

Abstract: An apparatus is disclosed for providing access to plurality of telecommunication lines. The apparatus includes a frame which carries a plurality of normally closed contacts. The telecommunication lines are terminated on the normally closed contacts. A plurality of modules are provided to be releasably attached to the frame with electrical circuit elements on the modules engaging the normally closed contacts to open the contacts and create a new signal path through the module upon insertion of the module into the frame.

Abstract: A wire insertion tool for use with split cylinder terminals includes a shaft having a wire insertion post sized to fit within a split cylinder terminal and a sleeve fixed to the shaft with the tip of the sleeve sized to fit around the outside of the wire insertion terminal. A spring biased sliding sleeve is concentrically disposed between the tip of the shaft and the tip of the fixed sleeve. The sliding sleeve is displaceable by the walls of the split cylinder as a wire is inserted, and is spring biased outwardly to eject wire debris as the tool is extracted. Jamming of the tool by wire insertion debris is thereby avoided. A member is provided for removably interlocking the tool and a handle. A cam follower is secured to the handle and a cam surface is provided on an end of the tool for the tool to be locked into the handle when forced in one direction and released when forced in another.