Abstract: A connector for telecommunication systems has input terminals and output terminals arranged in ordered arrays and connected by a circuit having a plurality of conductive paths connecting the respective input and output terminals. The circuit cancels crosstalk induced across adjacent connected terminals by sets of sections. Two of the paths have one set of sections connected in series and spaced from each other between the input and output terminals. Another pair of paths have another set of sections connected in series and spaced from each other between the input and output terminals. Each section of the two sets forms a noise reduction circuit providing a reactive coupling between the respective paths which is greater than adjacent portions of the paths spacing the sections of the two sets.

Abstract: An integrated digital loop carrier (IDLC) system includes digital line feeders and signal processors to interface with the feeders and to ultimately provide data to subscriber instruments. The system can be employed as a central office terminal (COT) or remote digital terminal (RDT) with analog, T1 or SONET feeders and any conventional link medium. Data are put in DS1 format and multiplexed onto token ring optical loops for delivery to banks of channel units wherein the optical signals are translated to electrical signals for delivery to the CUs and subscribers. A method and apparatus is provided for mapping and demapping signals between virtual tributaries (VT) and digital signal formats in the RDT of an integrated digital loop carrier.

Abstract: A safe operating load reducing tap plug for testing, grounding and isolating a connector from a high voltage system by utilizing a rated bushing insert is disclosed, wherein the connector has a bushing port and a plug port connected to a high-voltage cable, and wherein the bushing port is mountable to electric equipment. The plug includes a deadbreak interface having an interface contact assembly receivable in the bushing port, the interface contact assembly being connectable to the high-voltage cable and the equipment; a loadbreak interface having an aperture extending through to the deadbreak interface; and a bushing well interface having a well for receiving the rated bushing insert, the bushing well having a bar stud extending therefrom which is electrically connectable to the interface contact assembly. The connector is tested through the rated bushing insert to initially confirm that the high voltage cable is de-energized.

Abstract: A conduit connector assembly which receives an end of a conduit carrying electrical wires includes a fitting body, an end stop grommet and a spring clip. The end stop grommet and the spring clip are each mounted to the fitting body. The spring clip is disposed within an interior bore of the fitting body and has a resiliently flexible body and a gripping end portion on the body defining a grip end. The grip end has a substantially scalloped configuration for gripping and fitting partially about the conduit so as to center the grip end of the spring clip body on the conduit. The grip end having the scalloped configuration is in the form of an arcuate concave-shaped edge surface on the gripping end portion of the body. The grip end of the spring clip body makes line contact with an inner convolution on an exterior of the conduit and makes at least a single point contact with an outer convolution on the exterior of the conduit.

Abstract: An insulator in the form of suspension insulator or pin type insulator has an elongated load sustaining body with a plurality of weathersheds extending radially relative to the longitudinal axis of the body on the outer surface of the body. The body and weathersheds are unitarily formed as one piece of rigid dielectric plastic polymer which are molded together. Clevis and eye coupling means are provided on the ends of the body to facilitate connection to support structures and high voltage lines.

Abstract: Integrated fold-up reflector mounting brackets to mount a reflector to a lighting fixture or luminaire are fabricated as an integral part of the reflector during the production thereof without the use of additional material, components and operations. The top of the reflector is fabricated with a stamping operation to provide an opening therein to provide for the mounting of a lamp socket and to allow for the flow of ventilation air therethrough. First and second fold-up mounting brackets are stamped and fabricated as an integral part of the top of the reflector. Each of the first and second fold-up brackets comprises a plurality of contoured ribs, with at least one of the contoured ribs having a truncation therein defined along a fold line for the mounting bracket.

Abstract: A conduit connector assembly which receives an end of a conduit carrying electrical wires includes a fitting body, an end stop grommet and a spring clip. The fitting body and spring clip are provided with inwardly projecting conduit gripping portions having grip ends which are angled relative to a reference plane disposed perpendicular to a longitudinal axis of the fitting body so as to make line contact rather than only a point contact with portions of convolutions of the conduit so that greater and more uniformly applied gripping force is produced that will prevent the conduit from being pulled out from the connector assembly.

Abstract: An arrangement for assembling a lamphead and a panel and securing them together to allow for full adjustability in the rotationally adjusted positioning of the lamphead relative to the panel through the utilization of a minimum amount of fastener elements and without the necessity for having to remove any panels or fasteners. A disk element has a center hole with a radially inwardly extending protuberance or key, and with a plurality of closely spaced small holes or apertures formed in the disk and annularly arranged about the center keyed hole in a predetermined circular pattern.

Abstract: An electrical receptacle assembly includes a housing and a plurality of dual snap-fit securement arrangements defined on the housing. The housing include a front cover and a back cover being adapted to interfit with the front cover in a mating relationship so as to define an interior cavity for enclosing electrical components. Each dual snap-fit securement arrangement includes a lug attached on one of the front and back covers of the housing, and a pair of latching tabs attached on the other of the front and back covers and disposed in a latching position relative to one another in which the latching tabs are adapted to make interlocking engagement with the lug upon interfitting of the front and back covers into the mating relationship with one another.

Abstract: An electrical device has a housing with an internal cavity lined with insulating material. An electrical component is mounted in the cavity between the opposite ends of the housing. An electrically conductive probe is mounted in the cavity at one housing end. An end connector is mounted in the cavity at another housing end. The electrical component is electrically connected to the end connector and to the probe. The electrical component connection to the probe includes wedge insert engaging the component inner end and engaging an inner surface of the lining of insulating material to form a seal between them. Gas generated by the electrical component will not flow past the wedge insert in the direction of the probe.

Abstract: A composite ribbon coupling cable includes a plurality of elongated strengthening elements made of a resilient springy material, a plurality of elongated communications elements disposed in alternating spaced apart relation with the elongated strengthening elements, an inner jacket of insulative material encapsulating the alternating strengthening elements and communications elements therewithin so as to dispose the encapsulated elements in a substantially common plane providing a substantially flat ribbon configuration, and an outer jacket of resilient wear-resistant protective material encapsulating the inner jacket of insulative material. The strengthening elements preferably are elongated bands of a spring metal whereas the communications elements preferably have fiber optic cores or copper cores. The inner jacket includes a pair of inner flat layers of insulative material disposed along and adhered to opposite sides of the alternating strengthening elements and communications elements.

Abstract: A universal ceiling box adapted to selectively support fans and fixtures. The ceiling box preferably has a substantially flat, top portion with a side portion extending substantially perpendicularly from the perimeter of the top portion. The side portion and the top portion form a main cavity with an open bottom end. A mounting element extends from the side portion into the main cavity for selectively coupling and supporting fans and fixtures thereto. The mounting element has a pair of opposed fan mounting holes with a first diameter, and a pair of opposed fixture mounting holes with a second diameter which is smaller than the first diameter. Each of the first and second mounting holes has an axis extending perpendicular to the top portion, respectively.

Abstract: A multivoltage (120 VAC to 277 VAC) input, low leakage current type, microcontroller-based, wall switch mounted, IR motion sensor with a latching relay having zero watt load switching capability, provided in a low cost, single PC board design to be mounted in a single gang electrical box. The switching circuit delivers AC electrical power to a load, such as a lighting fixture, from an AC power supply having only a hot lead, a neutral lead and a ground connection. The switching circuit comprises a rectifier, coupled to conduct a leakage current between the hot lead and the ground connection, for converting the AC electrical power to a DC electrical power supply. A relay has a first normally open contact coupled to the hot lead and a second normally open contact coupled to the load, and is powered by a storage capacitor. An IR occupancy sensor generates a signal in response to a detected human presence.

Abstract: An angled interconnect panel assembly includes an enclosure, a plurality of support brackets mounted inside the enclosure, a plurality of interconnect panels which are each pivotally mounted to one of the support brackets and are each disposed in an angled position when at rest between adjacent support brackets, and a pair of key-operated lock mechanisms for locking or holding the interconnect panels in their angled positions. The enclosure has a pair of opposite end walls and defines wire entry ports in the end walls. One wire entry port is for passage of user wiring into the assembly while the other of the wire entry ports is for passage of technician wiring into the assembly. Each interconnect panel has opposite user and technician sides and defines a plurality of openings extending between the opposite user and technician sides for receiving one or more interconnection members. The assembly also includes a pair of front closure doors.

Abstract: A reinforced electrical insulator has a load sustaining mechanical core with a pair of attachment members located at its longitudinal ends. One of the attachment members extends longitudinally into the mechanical core to provide reinforcement to the mechanical core. The mechanical core member is constructed of a rigid, dielectric material with a first end section, a second end section, and a center section. A plurality of weathersheds extending outwardly from the center section of core member in a substantially radial direction relative to the longitudinal axis. The first and second end sections having maximum widths which are larger than the maximum width of the center section. The attachment members have inner portions embedded within the end sections of the core and outer portions extending outwardly from the end sections of the core.

Abstract: A combined loop current sink, battery detector, and ringing detector circuit as used in a channel unit at a telephone central office connection to a digital loop carrier circuit, to provide off-hook and on-hook signaling to analog switching circuits, and to simultaneously receive normal battery and ringing signals from the analog switching circuits. The combined circuit includes tip and ring connections to the digital loop carrier circuit to provide telephone service, a loop input controlled by logic circuits, at the telephone central office, and a battery output connected to the logic circuits. A first optocoupler, is connected to the loop input and also to ground, for providing a floating voltage coupling for the loop input to the circuit. A second optocoupler, is connected to the battery output and also to ground, for providing a floating voltage coupling for the circuit output. A transistor circuit has an input coupled to the first optocoupler and an output coupled to the second optocoupler.

Abstract: A waterproof cover for electrical devices such as electrical outlets, receptacles, switches, ground fault circuit interrupters, dimmers, etc. The waterproof cover has snap-in modular cover plates which can be used either alone with one gang covers or outlet boxes, or ganged together in combination for use with two gang electrical covers or outlet boxes. The cover plate has a side edge which defines an overhanging interlock extending along a first length of the side edge and an underhanging interlock extending along a second length of the side edge. The arrangement is such that the overhanging interlock can interlock with an underhanging interlock and the underhanging interlock can interlock with an overhanging interlock of a second similar cover plate to form a two gang cover plate for a two gang weatherproof cover. Alternatively, the overhanging interlock can interlock with an underhanging interlock and the underhanging interlock can interlock with an overhanging interlock of a one gang waterproof cover.

Abstract: An electrical insulator for supporting an electrical conductor includes a load sustaining molded core, a mounting on the core, an dielectric sheath, and a metal cap. The molded core is formed of a dielectric polymer with opposite longitudinal ends and a profiled lateral outer surface between the ends. The dielectric outer sheath overlies the core outer surface and has a weathershed extending laterally outwardly relative to the core. A metal cap is secured to one end of the core by the metal cap having a portion directly molded to the core. The mounting is located on the end of the core opposite the metal cap.

Abstract: A set of grounded and isolated duplex electrical receptacle assemblies includes interchangeable dual female bodies, interchangeable socket bases, interchangeable right, left and middle contact members, and interchangeable support bridges for assembling either a grounded or an isolated receptacle assembly. In the isolated assembly, an insulator plate is fitted between the support bridge and the middle contact member to electrically isolate one from another to thereby prevent electrical engagement therewith.

Abstract: A universal multifunction sensor having multiple optical designs and providing a plurality of parameter sensors in one sensor module which can interface with and control operation of one or more processor control systems in an occupied space networked environment. The universal multifunction sensor comprises a passive infrared occupancy sensor and an ambient light sensor. A common network communications and control processor coupled to a common communication transceiver are shared in common by the occupancy sensor and the ambient light sensor, such that the multifunction sensor can interface with and control operation of one or more processor control systems in an occupied space networked environment.