Abstract: A network diagnostic device is disclosed that digitally samples the voltages on the cabling of the network, but does so at a much higher rate and with greater resolution then is required to minimally detect digital transmissions on the cabling. This sampling provides information on the analog characteristics of digital, noise, and interference signals on the network. Thus, network problems can be precisely diagnosed. The device includes a fast digitizer with a long memory and a system processor that statistically analyzes the signal events captured by the digitizer. The invention is also capable of performing time domain reflectometry (TDR) analysis of a functioning network. This is accomplished by placing a TDR signal on the network surrounded by a transmission that the network devices will interpret as a broadcast diagnostic packet. This will cause the network nodes to ignore the transmission. The digitizer, however, is able to detect the networks response to the TDR signal.

Abstract: A connector and method of crosstalk compensation within a connector is disclosed. The method includes determining an uncompensated crosstalk, including an uncompensated capacitive crosstalk and an uncompensated inductive crosstalk, of a wired pair in a connector. The uncompensated crosstalk includes common mode and differential mode crosstalk. The method includes applying at least one inductive element to the wired pair, where the at least one inductive element is configured and arranged to provide balanced compensation for the inductive crosstalk caused by the one or more pairs. The method further includes applying at least one capacitive element to the wired pair, where the at least one capacitive element is configured and arranged to provide balanced compensation for the capacitive crosstalk caused by the one or more wired pairs.

Abstract: An upgradeable patch panel assembly and associated method of upgrading a patch panel assembly. The upgradeable patch panel assembly including a panel base having an aperture sized to receive a scanner interface cable. The method including removing a first cover from the panel base, inserting a scanner interface cable through the existing aperture in the panel base, and attached an upgraded cover to the panel base. Upgrading the patch panel assembly is completed while the assembly remains mounted to a frame and without disconnecting rear cable connections. The upgraded patch panel assembly provides jack-occupancy monitoring capabilities.

Abstract: A distribution network for coupling wireless signals between an internetworking device and a plurality of remotely located access points to provide wireless service within a geographic coverage area composed of microcells. The distribution network makes use of available transport cabling. Examples of such wireless signals include wireless metropolitan area network signals and mobile broadband wireless network signals.

Abstract: An adapter having a housing, a ground clip and an adapter subassembly all located in the housing. The adapter subassembly includes a proximal portion that can be coupled to a coaxial connector and a distal portion that can be coupled to a printed circuit board. A central conductor in the form of an elongated shaft that runs through the subassembly and has a ball contact end for contacting a conductor located on a printed circuit board and the elongated shaft is tapered in a region near the ball contact.

Abstract: The present invention relates to a device for use in a fiber optic system that may be a communication system, a sensing system or other system using guided-wave optical components. Reducing the number of lenses required to couple the waveguides and the free-space paths in the device offers the dual advantages of a reduced component count and simplified alignment. In an exemplary device having a first and second waveguides, a birefringent optical system defines bi-directional, polarization-dependent free-space paths. One of the bidirectional, polarization-dependent, free-space paths couples at least the first waveguide to the second waveguide. The birefringent optical system includes at least one prism for bending one of the polarization-dependent paths in a clockwise direction and one of the polarization-dependent paths in a counterclockwise direction.

Abstract: A connecting panel assembly including pivot modules that are pivotally connected to a frame of the assembly. The pivot modules include a plurality of jack modules. The jack modules have a plug opening on one side and wire terminations on an opposite side. The pivot modules are pivotally coupled at opposite ends of the frame. The pivot modules can pivot from a closed position wherein the pivot modules are aligned parallel with the frame, and an open angled position wherein the pivot modules are positioned at an angled position relative to the frame. The assembly also includes a support member that supports the pivot modules in the angled position.

Abstract: A cable radius limiter having a radius limiting surface that prevents damage to cables due to excessive bending. The cable radius limiter includes mounting structure and cable retaining structure arranged such that the limiter can be operably oriented and mounted to a mounting bracket in both a first mounting orientation and a second mounting orientation. Two radius limiters can be mounted together to form a cable spool.

Abstract: Systems for contention-based bandwidth requests in orthogonal frequency division multiplexing (OFDM) systems are provided. In one embodiment, a bi-directional communication system comprises: a multipoint-to-point host unit; and a plurality of remote units communicatively coupled to the multipoint-to-point host unit through an OFDM waveform. The multipoint-to-point host unit is configured to receive the OFDM waveform, the OFDM comprising a plurality of tones transmitted by the plurality of remote units. A first remote unit of the plurality of remote units is configured to transmit a request for bandwidth to the host unit on a tone of the plurality of tones, wherein access to the tone is contention-based. The multipoint-to-point host unit is configured to direct a modem to transmit information on at least one tone of the OFDM waveform based on whether the modem successfully receives the request for bandwidth from the first remote unit of the plurality of remote units.

Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme.

Abstract: The invention relates to a strain relief device (40) for glass fiber cables (50) having a cable jacket (56) and at least one glass fiber (57) and fibers (58) arranged between the at least one glass fiber (57) and the cable jacket (56), in which, at one end of the glass fiber cable (54), the cable jacket (56) is cut back, in order to provide strain relief at a distance from a termination or connection of the at least one glass fiber (57) from which the cable jacket (56) has been removed, said strain relief means comprising a main body (1) with a clamping body (3) and a securing body (21) with a further clamping body (22), wherein the main body (1) and the securing body (21) can be connected to one another so that at least some of the fibers (58) which are exposed when the cable jacket (56) is cut back from the at least one glass fiber (57) are secured adjacent to their exit from the cable jacket (56) between the clamping body (3) and the further clamping body (22) by a clamping means.

Abstract: An apparatus for moving a fiber including a plurality of fiber optic connectors through a system for processing the plurality of fiber optic connectors. The apparatus can include a first drive mechanism for moving the fiber through the system, such as a cart and a conveyor. The apparatus can include a second drive mechanism for moving the plurality of fiber optic connectors through the system, such as a screw drive. The apparatus can also include a controller for coordinating movement of the first drive mechanism with the second drive mechanism.

Abstract: A device and method of blocking customer access to a fiber optic distribution cable. A service blocker is positioned between a fiber distribution cable and a customer drop cable within a fiber optic adapter. The service blocker includes a body which does not permit optical transmission between the fiber distribution cable and the customer drop cable. The service blocker includes a first end configured to be inserted within the fiber optic adapter and a second end configured connect with a fiber optic cable connector. A system for mounting fiber optic cables including a service blocker positioned within a bulkhead mounted adapter between two fiber optic cables.

Abstract: A bidirectional communication system is provided. In one embodiment, a system comprises a host; and a plurality of remote units, wherein a plurality of tones is shared among the plurality of remote units in order to communicate with the host using orthogonal frequency division multiplexing, wherein the plurality of tones is shared in a manner that permits at least two of the remote units to transmit to the host at any one time using the plurality of tones. The host causes at least one remote unit to adjust a timing of symbols transmitted on at least one of the plurality of orthogonal tones in order to improve an alignment of multiframes received at the host.

Abstract: A telecommunications cabinet includes an enclosure, a splitter mounted within the enclosure for splitting a fiber optic signal, a plurality of adjacently positioned adapter trays mounted within the enclosure, each tray being pivotable about an axis generally parallel to a longitudinal axis of the enclosure and each adapter tray housing a plurality of adapters, the enclosure also including an excess cable storage structure for storing cables that are not connected by the adapters mounted on the adapter trays, the excess cable storage structure providing a termination location for fiber optic cables without providing a continuous optical path for the fiber optic signals.

Abstract: A bidirectional communication system is provided. In one embodiment, a system comprises a plurality of remote units; a multipoint-to-point host unit communicatively coupled with a plurality of remote units in a multi-point to point configuration, the multipoint-to-point host unit including a multi-carrier modem configured to communicate with the plurality of remote units via an orthogonal frequency division multiplexing waveform; wherein the multipoint-to-point host unit is configured to estimate a round trip path delay correction associated with at least one of the plurality of remote units; and wherein the multipoint-to-point host unit is configured to adjust the round trip path delay associated with the at least one of the plurality of remote units.

Abstract: A fiber sub-system is provided. The fiber sub-system comprises a fiber optic transmission module, one or more contact boards adapted to couple to shelf interface connectors, and a midplane adapted to couple with the one or more contact boards and the fiber optic transmission module enabling communication between the one or more contact boards and the fiber optic transmission module without requiring modifications to the fiber optic transmission module. The fiber sub-system also comprises a shell for encapsulating the fiber optic transmission module, the one or more contact boards, and the midplane.

Abstract: A telecommunications cabinet comprising a top, a floor, a pair of opposing sides, a front wall and a rear wall defining an interior, the front including an access door for accessing the interior. Within the interior are mounted a cable management structure, an adapter panel with an adapter configured to optical connector two optical fiber cables terminated with fiber optic connectors, and a fiber optic connector holder mounted in openings of the adapter panel. The connector holder has an opening configured to receive a fiber optic connector with a dust cap, the opening accessible from a front side of the adapter panel. A fiber optic connector including a ferrule with a polished end face holding an end of an optical fiber with a dust cap placed about the ferrule and polished end face is inserted within the opening of a fiber optic connector holder. And a fiber optic connector is inserted within the rear side of one of the adapters.

Abstract: A system including a master controller, a plurality of wireless nodes dispersed in a geographic area and a plurality of traffic signal lights dispersed in the geographic area. The traffic signal lights are communicatively coupled to the master controller via the plurality of wireless nodes. Each wireless node in the plurality of wireless nodes is associated with a distinct Internet protocol address and a wireless communication link provides Internet protocol based communication between the plurality of wireless nodes and the master controller. The plurality of wireless nodes receives control data packets for the communicatively coupled traffic signal lights from the master controller via the wireless communication link. The control data packets comprise the distinct Internet protocol address and operational instructions for at least one traffic signal light communicatively coupled to the wireless node and each traffic signal light is responsive to the operational instructions in the control data packets.

Abstract: A device and method of blocking customer access to a fiber optic distribution cable. A service blocker is positioned between a fiber distribution cable and a customer drop cable within a fiber optic adapter. The service blocker includes a unitary body which does not permit optical transmission between the fiber distribution cable and the customer drop cable. The service blocker includes a first end configured to be inserted within the fiber optic adapter and a second end configured receive a fiber optic cable connector. A system for mounting fiber optic cables including a service blocker positioned within a bulkhead mounted adapter between two fiber optic cables.