Abstract: A fiber optic connector including a ferrule surrounding an optical fiber and a hub engaging the ferrule. The hub includes a front portion having first and second surfaces and first and second tapered contact regions extending from the first and second surfaces to a front face. A housing includes an anti-rotation seat configured to engage the first and second surfaces, the anti-rotation seat including first and second angled contact surfaces positioned at a front of the anti-rotation seat. A spring within a chamber of the housing biases the ferrule through a bore in the front of the housing. The first tapered contact region of the hub engages the first contact surface, and the second tapered contact region engages the second contact surface when the hub and ferrule are in a first rotational position so that the optical fiber is maintained at a known orientation with respect to the connector. The tapered contact regions are planar surfaces sized smaller than the angled contact surfaces.

Abstract: Systems for tone allocation are provided. In one embodiment, a system comprises: a plurality of remote units and a host including a demodulator. Each remote transmits an upstream OFDM signal using a multiple access scheme to the host using an OFDM waveform. The host receives the upstream OFDM signals, the tones of the upstream signals substantially orthogonal when received at the host. Portions of upstream OFDM signals from at least two remotes arrive at the host at the same time. The host demodulates said portions. At least one remote transmits to the host using a first tone allocated by the host. The host sends an adjustment signal to the remote to adjust the timing of transmissions to improve orthogonality of the OFDM waveform. After the remote has begun transmission using the first tone but before the remote has completed its transmission, the host allocates to the remote a different tone.

Abstract: An apparatus that has housing for containing objects. The housing has two heat-conducting partial-boundaries having an interface between them. The apparatus also has a medium for enhancing heat transfer across the interface.

Abstract: A fault associated with a communication medium is analyzed by correlating a first set of information indicative of echo associated with the communication medium with a second set of information indicative of echo. The fault is characterized based on the correlation between the first set of information and the second set of information. The first set of information and the second set of information can include echo canceller coefficients generated by an echo canceller coupled to the communication medium.

Abstract: A center conductor for use in a coax jack module assembly, for example. The center conductor including a conductive body having a crimped region and an uninterrupted region. The crimped region being located only within one of a first half and a second half of the conductive body. The first half and the second half of the conductive body being defined by a plane, which is defined by a central axis of the conductive body. The crimped region is defined by slots, such as saw cuts, made at an angle parallel to the plane.

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 cable clip includes a housing defining an open space and outer grooves about the housing for mounting the cable clip into a mounting opening, the inner edge of the housing including trumpet flares around the edges of the ends and side to provide bend radius protection for cables passing through the clip and a gate closing off the open sided space. The gate may be attached to the housing by a living hinge.

Abstract: A method for controlling bi-directional data transfers in an electronic circuit is provided. The method involves when a first of at least two data signals is activated as an originating data signal prior to a second of the at least two data signals: allowing only a device associated with the first of the at least two data signals to be a signal source, and causing a device associated with the second of the at least two data signals to enter a receive state as a signal sink. The method further involves passing at least one bit of data from the signal source to the signal sink.

Abstract: The present invention relates to a center conductor insulator with a tapered entry for use with a coaxial cable transmission line connector that provides guiding and centering of a center conductor pin within the connector. The present invention further relates to a front sleeve assembly for use with a coaxial cable transmission line connector which incorporates a center conductor insulator with a tapered entry to guide and center a center conductor pin within the connector. The present invention also relates to a compression ring assembly for mounting a connector to a cable, the assembly having a collet engaging a tapered rear seal to compress the collet about the cable. The present invention further relates to a method of mounting a connector to a cable with a compression ring assembly incorporating a collet and tapered rear seal.

Abstract: The present disclosure relates to a telecommunications cable including a distribution cable and a tether that branches from the distribution cable at a mid-span breakout location. A flexible closure covers the mid-span breakout location. Within the closure, fibers are broken out from the distribution cable and spliced to fibers of the tether. The lengths of broken out fibers within the flexible closure are provided with sufficient excess fiber length to allow the closure to be readily bent/flexed in any direction without damaging the fibers.

Abstract: A splice tray arranged to manage and store both stranded fiber optic cables and ribbon fiber optic cables. The tray includes a splice holding arrangement that accommodates both stranded splice components and ribbon splice components. The tray also includes a storage arrangement having radius limiting arrangements that define a number of storage or routing pathways that accommodate varying lengths of both stranded fiber optic cables and ribbon fiber optic cables.

Abstract: The present disclosure relates to relates to a telecommunications outlet box including a peripheral wall that is primarily curved except for a portion in which a connector access opening of the box is defined. The present disclosure also relates to a telecommunications outlet box having a cradle in which a cable management spool is retained. The present disclosure further relates to a cable guide for use with a telecommunications outlet box. The cable guide projects outward from a connector access opening of the outlet box and provides a protective shield around cables connected to the outlet box.

Abstract: The invention relates to a housing for fibre-optic plug-in connectors. According to the invention, said housing is configured in at least two parts, one end of a core cable can be positioned in the housing and the position of said cable can be fixed in said housing, at least one housing part is equipped with an opening and the housing part can engage over the core cable in a transversal direction by means of the opening. The invention also relates to a method for laying fibre-optic cables, which can be manufactured with plug-in connectors, whereby at least one end of a core cable is laid in a plug-in station, the end of the core cable is positioned in a housing part, the position of the core cable is fixed in the housing part by at least one second housing part and at least one housing part, which is provided with an opening, engages over the core cable in a transversal direction.

Abstract: A multipoint-to-point, orthogonal frequency division multiplexed (OFDM) communication system is provided. The system includes a plurality of remote units and a host unit that includes a demodulator. Each of the remote units transmits an upstream OFDM signal using a multiple access scheme to the host unit demodulator using at least one of a plurality of orthogonal tones within an OFDM waveform. The host unit receives the upstream OFDM signals from a plurality of the remote units. Portions of upstream OFDM signals from at least two of the remote units arrive at the host unit at the same time. The host unit demodulator demodulates the portions and the upstream signals from the plurality of remote units arrive at the host unit synchronized in time and frequency within the OFDM waveform.

Abstract: Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. Longitudinal guides of the connector are received cooperating with longitudinal guides of the adapter to direct the connector into the adapter in a prescribed alignment. A cam pin is carried on the adapter to engage a cam pin receiving slot on the cover to urge the cover to the open position as the connector is inserted into the adapter.

Abstract: A patch panel includes a back plane having front mounted pairs of termination locations, and an interconnect location electrically connected to each pair of termination locations. The termination locations connect to two patch cords. The interconnect location defines an access device for selectively accessing the termination locations. An interconnect module interfaces with the interconnect location. The module can include test access, power over Ethernet, or circuit protection features.

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 cross-connect module is disclosed herein. The cross-connect module includes a housing having a front end and a rear end. The rear end includes a rear wall defining connector mounting openings. First and second switching jacks are positioned adjacent the front end of the housing. Rear connectors mount within the connector mounting openings. Cables electrically couple the rear connectors to the switching jacks. A tracer lamp circuit including a power connector and a pin jack are also provided. In depicted embodiments, the rear connectors, the pin jack and the power connector are secured to the rear wall of the housing by snap-fit connections. The depicted module also includes a front cover having structure for providing snap-fit connections with the switching devices.