Abstract: A cavity filter assembly is provided with at least one structural cavity wall comprising a circuit board. The circuit board may also contain other circuits and circuit elements such as trim capacitors, inductors, low noise amplifier circuits and power amplifiers that are part of the filter's function. Input and output coupling structures and connectors may also be provided on the circuit board. The circuit board may contain inter-stage coupling circuits, signal traces, and coupling pads/structures. Further embodiments are provided that incorporate test connectors and directional couplers on the circuit board. In yet other embodiments the filter's electrical characteristics are tunable with trim elements mounted on the circuit board, such as capacitors or inductors, in either mechanical or electrical manner. The filter's electrical characteristics may also be tunable with mechanical elements mounted through the circuit board.

Abstract: A DSX jack module having removable jacks is disclosed. The jack module includes a jack mount for holding the jacks. The jack module also includes a front facing cross-connect array and a front facing IN/OUT array. A circuit board is electrically connected to the arrays. The circuit board includes portions positioned directly behind the cross-connect array and the IN/OUT array. A chassis for holding jack modules is also disclosed. The chassis includes a front door having a double hinge configuration.

Abstract: A ring voltage generator uses values stored in random access memory to generate a train of pulses used to drive a voltage waveform to ring a telephone ringer. The values are stored in RAM, and are programmable by a user without requiring a change in the ring voltage generator design.

Abstract: A housing for a coaxial jack including an opening for receiving the jack, the opening including a guide for preventing rotation of the jack within the opening. The housing also includes a stop to limit sliding of the jack within the opening and a flange extending from an outer surface. An outer face opposite the flange includes a ridge and a groove. A housing for coaxial jacks includes a pair of openings for receiving jacks. Each opening includes a guide to prevent rotation and a stop to limit sliding of the jack within the opening.

Abstract: A system for managing and routing one or more data cables is disclosed. This system comprises a telecommunications enclosure and a cable routing station. The telecommunications enclosure has an external surface that houses at least one data cable. The cable routing station is coupled to the external surface of the telecommunications enclosure and is adapted to selectively route one or more of data cables away from the telecommunications enclosure.

Abstract: The present invention relates to a telecommunications termination panel with a housing including a front opening and a rear opening. Pivotably mounted within the housing is a tray within the front opening, pivoting about a vertical axis located adjacent a first side of the housing. A cable path is defined along a bottom of the housing along the first side between the cable entry of the tray and the rear opening. A movable plate is positioned adjacent the first side and is movable between a first position defining an upper limit of the cable path when the tray is closed and a second position allowing access to the cable path when the tray is open. The movement of the plate between the first and second positions is actuated by the movement of the tray between the closed and open positions. The present invention further relates to a telecommunications termination panel with a housing including a front opening.

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 bal contact.

Abstract: An adapter for connecting coaxial cable connectors. The adapter has first and second ends for mounting cable connectors for various genders and styles as required for connecting two existing cable connectors. The connectors may be selectively changed as required to mate with the gender and style of the cable connectors mounted to the coaxial cables to be joined. A method of assembling an adapter for connecting coaxial cables that includes selecting first and second cable connector ends for the adapter to mate with the cable connectors to be joined.

Abstract: A bulkhead connector for connecting to a transmission line comprising a rear portion mounted within an opening in a bulkhead with a first end including first and second threads on a first side of the bulkhead and a second end extending through the opening to a second opposing side of the bulkhead. A front connector body and a front shell assembly are threadably attached to the rear portion with an insulator sleeve positioned between them. The front shell assembly includes a front shell with threads for attaching to the rear portion and a center conductor mounted within an insulator. The insulator is mounted within a central opening of the front shell and electrically isolates the center conductor from the front shell. The second end of the rear portion including threads received within the opening in the bulkhead.

Abstract: Phase locked loops operable at low reference clock signal frequencies include a phase comparator having a phase detector, a digital counter, and a digital-to-analog converter. The phase detector provides an error signal indicative of a phase relationship between the reference clock signal and a feedback signal. The digital counter provides a count value indicative of the amount of phase error between the reference clock signal and the feedback signal. The digital-to-analog converter provides an error voltage signal proportional to the count value. Such phase comparators permit direct measurement of the amount of phase error prior to filtering and amplification by the phase locked loop. Direct measurement of the amount of phase error can be used to reduce the likelihood of saturating an amplifier of an active filter of the phase locked loop without the use of a pre-filter. Such phase locked loops are suitable for use in timing circuits of communications systems.

Abstract: The invention relates to an approach to angle tuning a thin film, interference filter device in which light is delivered to the filter from a fiber lying off-axis relative to the filter, and to a method of optically coupling such a device. The optical device comprises a lens unit having an optical axis and an adjustable effective focal length. The device also includes a first port disposed on a first side of the lens unit and on a first side of the optical axis, and an optical element disposed on the second side of the lens unit. The optical element has an optical characteristic that is dependent on the angle of incidence on the optical element. The lens unit has an adjustable focal length so light from the first port is incident on the optical element at a desired angle.

Abstract: A telecommunications chassis, module, and repeater circuit for use with signals having data rates including STM-1 (155.52 megabits per second) are disclosed. The chassis provides structures for establishing shielding and heat dissipation for the circuitry modules it contains including an outer and an inner Faraday box with an integrated ventilation pattern for circulating air. The module provides its own structures for establishing shielding and heat dissipation including a Faraday box and a ventilation pattern. The repeater circuit provides the ability to bridge a data signal between a monitor jack of one device and a higher signal level input jack of another device through multiple amplification stages and circuit board structures. The telecommunications chassis, module, and repeater circuit can be used in conjunction.

Abstract: The present invention relates to cables made of twisted conductor pairs. More specifically, the present invention relates to twisted pair communication cables for high-speed data communications applications. A twisted pair including at least two conductors extends along a generally longitudinal axis, with an insulation surrounding each of the conductors. The conductors are twisted generally longitudinally along the axis. A cable includes at least two twisted pairs and a filler. At least two of the cables are positioned along generally parallel axes for at least a predefined distance. The cables are configured to efficiently and accurately propagate high-speed data signals by, among other functions, limiting at least a subset of the following: impedance deviations, signal attenuation, and alien crosstalk along the predefined distance.

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 wall mount chassis includes circuitry for telecommunications signals. The chassis includes a rear wall mountable to a vertical wall, and first and second sides. Each side includes a hinged cover. Each cover includes an access window for viewing an opposite side of the cover. On one side of the chassis is positioned signal converter cards for converting between optical and electrical signals. On an opposite side of the chassis are positioned one or more electrical power cards providing an access location for power to the circuitry. A CPU card can also be provided on the same side as the power card. An interior of the chassis includes a back plane positioned between the converter cards and the power and CPU cards wherein the back plane is perpendicular to the converter cards and power and CPU cards. A cable spool is positioned adjacent one of the sides for cable management. Cable clips are provided for securably retaining one or more cables adjacent each of the first and second sides.

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 splitter card including a circuit board on which line, data and voice connectors are mounted. The connectors include contacts electrically connected to termination posts that extend through the circuit board such that ends of the termination posts are exposed. A plurality of splitters are connected to the circuit board for splitting composite signals into voice and data signals. The circuit board includes conductive paths for directing composite signals from the line connector to the splitters, for directing voice signals from the splitters to the voice connectors, and for directing data signals from the splitters to the data connectors. Dielectric insulator members are connected to the circuit board to cover the exposed ends of the termination posts.

Abstract: A bulkhead connector for connecting to a transmission line comprising a rear portion mounted within an opening in a bulkhead with a first end including first and second threads on a first side of the bulkhead and a second end extending through the opening to a second opposing side of the bulkhead. A front connector body and a front shell assembly are threadably attached to the rear portion with an insulator sleeve positioned between them. The front shell assembly includes a front shell with threads for attaching to the rear portion and a center conductor mounted within an insulator. The insulator is mounted within a central opening of the front shell and electrically isolates the center conductor from the front shell. The second end of the rear portion including threads received within the opening in the bulkhead.

Abstract: A cable management panel for telecommunications cables. A chassis holds a slideable drawer. The drawer includes cable terminations or splices. The drawer further includes a radius limiter which moves with synchronized movement with movement of the drawer. Cables enter the chassis through a side wall, such as located adjacent the rear of the chassis. The radius limiter manages a slack loop of cable disposed within the chassis.

Abstract: A chassis and associated telecommunication circuit card are disclosed. The chassis has heat dissipation and flame containment features while accommodating a high density of the circuitry cards. Embodiments include an inner housing with a double-layer middle floor dividing the chassis into top and bottom chambers. Each layer has partially aligned slots, and an air gap is provided between the two layers. Embodiments also include a double-layer mesh cover with an air gap existing between the two mesh layers. Projections and grooves are provided on the inner surfaces of the inner housing to receive circuit cards having a guide on one edge and a fin on another. 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 features of the chassis and includes some components chosen for low-power consumption or reduced flammability.