Abstract: A coaxial switching jack with a pair of coaxial assemblies mounted within a housing having a pair of front cable connection locations is disclosed. The coaxial assemblies each include a center conductor and an outer shield conductor. The center conductors are connected by a first spring and the shell conductors are connected by a second spring. Insertion of a coaxial cable connector within one of the front cable connection locations deflects the springs from the corresponding coaxial assembly and disconnects the center and shell conductors of the two assemblies. The jack may also be configured to provide an electrical connection between the center and shell conductors of the second coaxial assembly if a coaxial cable connector is inserted within the first coaxial assembly. The connection between the center and shell conductors of the second coaxial assembly may be through a resistor assembly allowing for selection of a desired electrical impedance.

Abstract: A telecommunications patch panel is provided having a plurality of connector modules rotatably mounted to a frame member. Each connector module has a front face and an opposite facing rear face, and each front face includes a plurality of connector jacks. Each rear face includes a plurality of wire termination blocks. The wire termination blocks are electrically connected to the connector jacks. Each connector module is rotatable about a rotation axis relative to the frame member. A lock selectively locks each connector module to the frame member as desired. The connector jacks and the connector modules are arranged in linear arrays perpendicular to the axis of rotation.

Abstract: A chassis and associated telecommunication circuit card are disclosed. The chassis has heat dissipation structures and may accommodate a high density of the circuitry cards. Embodiments may include one surface with one or more ridges for rigidity and ventilation and fin slots for receiving circuit card guide fins. Embodiments may include a surface with knockouts for receiving circuit card guides. Embodiments may also include multiple bracket hole patterns for mounting brackets for different racks or for a single multi-rack bracket having more than one mounting hole pattern. The circuit card includes conductor structures such as multiple board layers with paired and segregated conductors. The circuit card also includes some components positioned to cooperate with the ventilation structures of the chassis and includes some components chosen for low-power consumption or reduced flammability.

Abstract: A coaxial cable signal splitter with first, second and third connector ends, each adapted to mate with a coaxial cable connector. The first connector end is integral with a splitter body. The second and third connector ends are connected to the body by a pair of coaxial cables. Each connector end includes a center conductor mounted within a coaxially arranged conductive outer shell conductor. The splitter body includes the first connector end and an opposing arrangement for connecting the pair of cables to the body. The splitter body includes a transverse opening between the first connector end and the cable mounting arrangement, the opening extending through the body and having opposing open sides. Within the opening, the center conductor of the first connector end is electrically connected with the center conductors of the second and third connector ends. The center conductor of the first connector end extends within the conductive outer shell of the first connector end and within the opening of the body.

Abstract: A splitter module for a fiber distribution hub includes a main body with a first aperture configured to receive an input fiber entering the splitter module, and a second aperture configured for a plurality of distribution fibers exiting the splitter module. The splitter module also includes a fin configured to be received in a slot of a splitter tray of a fiber distribution hub, and a pin configured to engage a hole in the splitter tray. The fin is received in the slot, and the pin is received in the hole of the fiber distribution hub to couple the splitter module to the fiber distribution module.

Abstract: Systems and methods for bidirectional communication are provided. In one embodiment, a method for aligning communications from a plurality of remote units in a multipoint-to-point orthogonal frequency division multiplexed (OFDM) communications comprises sending a first signal from a host unit to a first remote unit; receiving a second signal transmitted from the first remote unit in response to the first signal; generating at least one timing adjustment signal based at least in part on a round trip delay between the sending of the first signal and the receiving of the second signal; transmitting the timing adjustment signal to the first remote unit; wherein the timing adjustment signal instructs the first remote unit to delay OFDM transmission of data to improve alignment of multiframes at the host unit when communications are received at the host unit from the plurality of remote units.

Abstract: An apparatus including a conductive sleeve including an outer-conductive surface and an inner passageway that extends from a first end at least partially to a second end. The passageway is adapted to receive and shield a device that provides at least one of a radio frequency path and an electrical current path.

Abstract: A bidirectional communication system is provided. The system includes a first remote unit for communicating with a host unit using orthogonal frequency division multiplexing. The host unit is communicatively coupled to a plurality of remote units in a multipoint-to-point configuration. The first remote unit is configured to transmit up to a plurality of tones and the first remote unit includes a modulator for modulating the plurality of tones with upstream information using orthogonal frequency division multiplexing such that when any tones are transmitted from the first remote unit and at least one other remote unit of the plurality of remote units, the tones are substantially orthogonal when received at the host unit.

Abstract: A patch panel including a plurality of electrical connector assemblies, each of the electrical connector assemblies including a first jack presented on a first side of a panel frame of the patch panel and a second jack electrically linked to the first jack to form a jack pair and presented on a second side of the panel frame. Both the first jack and the second jack are presented at an angle with respect to the panel frame, and both the first jack and the second jack may be engaged using a patch cord. The first and second jack of each jack pair are at a 90-degree angle relative to one another.

Abstract: A multipoint-to-point, orthogonal frequency division multiplexed (OFDM) communication system is provided. In one embodiment, a system includes: a host unit including a demodulator that simultaneously demodulates upstream information modulated on a plurality of tones within an OFDM waveform, and a plurality of remote units for transmission of upstream information, each remote unit including a modem, the remote units modulating a plurality of tones with upstream information so that when received at the host unit the tones are orthogonal within the OFDM waveform.

Abstract: The invention relates to a glass-fiber coupler module, comprising a cassette mount, which is connected to a front panel, the cassette mount being assigned a coupler, by means of which the signals of at least one incoming glass fiber are distributed over at least two outgoing glass fibers, a first group of couplings and a second group of couplings, the second group of couplings being arranged on the front panel, glass fibers from the first group of couplings being passed into the coupler and the outgoing glass fibers from the coupler being connected to the second group of couplings, the first group of couplings being arranged on a mounting panel, and the mounting panel being arranged on the cassette mount such that it can pivot.

Abstract: A bi-directional communication system is provided. The system includes a multipoint-to-point host unit and a plurality of remote units communicatively coupled to the multipoint-to-point host unit through an orthogonal frequency division multiplexing waveform. A first remote unit of the plurality of remote units is configured to transmit upstream information to the multipoint-to-point host unit using one or more tones within the orthogonal frequency division multiplexing waveform. The first remote unit of the plurality of remote units is configured to detect a potential collision on one or more tones transmitted from the first remote unit and signals transmitted on one or more of the same tones within the orthogonal frequency division multiplexing waveform by another remote unit of the plurality of remote units.

Abstract: The present invention relates to an improved cable comprising a plurality of twisted pairs of conductors and a jacket in which the twisted pairs of conductors are located. The jacket defines an interior passage that extends along a length of the jacket, the interior passage including a central air region and a peripheral air region. The plurality of twisted pairs of conductors are positioned within the central air region. The peripheral air region of the interior passage includes a plurality of air channels that are circumferentially spaced relative to one another about the central air region of the interior passage. The channels are in fluid communication with the air in the central air region of the interior passage. Apparatuses and methods of manufacturing the improved cable are also disclosed.

Abstract: The present disclosure relates to a DSX device including a jack body with three ports including a monitor port, a switching mechanism within the jack body for making and breaking an electrical connection between the other two ports when a plug is withdrawn or inserted and a monitor network including a dielectric substrate electrically connecting the monitor port and one of the other ports. The present disclosure also relates to DSX modules incorporating DSX devices.

Abstract: A system for extending the effective distance of digital subscriber line service is provided. The system includes a central office terminal having a data interface and a plurality of line units. The system further includes at least one communication link, coupled to one of the plurality of line units, that carries signals using digital subscriber line service and at least one remote access multiplexer, coupled to the at least one communication link. The at least one remote access multiplexer includes a plurality of ports that are adapted to provide digital subscriber line service. The remote access multiplexer is adapted to multiplex signals between the plurality of ports and the at least one communication link. Further, the at least one remote access multiplexer is located at a distance from the central office terminal so as to provide digital subscriber line service to user terminals that are located more than 12 kilofeet from the central office terminal.

Abstract: A received RF signal can include data information intended for transmission over a wireless communication link. The data information of the signal can be processed at a node to produce overhead bits supporting a serial transmission of the data information over a communication medium to another node. For example, the data information of the received signal and overhead bits can be combined or framed according to a serial transport protocol for transmission over the communication medium. This technique of mapping or framing the data information into a serial transport protocol is used to more efficiently transmit the data over the communication medium to a target receiver, where the original RF signal can be reconstructed.

Abstract: A bidirectional communication system is provided. In one embodiment, a method for an orthogonal frequency division multiplexing multipoint-to-point communications system comprises establishing communication between a first remote unit of a plurality of remote units and a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration using orthogonal frequency division multiplexing; and adjusting a round trip path delay associated with the first remote unit.

Abstract: A system and method for automatically and uniquely assigning identification codes to a plurality of slave processors. A master processor having communication port is linked to a first slave processor, which, itself, has first and second communication ports. The first communication port is used in support of the aforementioned link to the computer. A second slave processor, also having first and second serial ports, is linked by its first communication port to the second communication port of the first slave processor. The slave processors are programmed to read designated pins on their first communication ports. The read values determine the identification code of each processor. Thereafter, each slave processor outputs to its second port a value one greater than the value read from its first port. Therefore, each slave processor assigns itself a particular identification code and directs the next slave processor to assign itself an identification code one greater.

Abstract: A graphical user interface element such as a window or a screen is displayed on an output device by sending a single message indicating that the graphical user interface element should be displayed. The message is received, and all the components of the graphical user interface element are displayed. After that, the graphical user interface element can be updated on a component-by-component basis.