Abstract: A mounting apparatus having first and second blocks securable within a housing. The first block has first and second grooves for respectively receiving a first edge of a first circuit board and a first edge of a second circuit board such that the first and second circuit boards are aligned with each other and are spaced apart. The second block has a groove for receiving a second edge of the first circuit board that is perpendicular to the first edge of the first circuit board and a surface to which the second circuit board is attached adjacent a second edge of the second circuit board that is perpendicular to the first edge of the second circuit board.

Abstract: A three-cavity stabilized laser system is disclosed. The laser system includes a laser with rear and front ends surrounding a gain medium. First and second wavelength-selective reflective elements with respective first and second overlapping reflectivity bandwidths are optically coupled to the laser. The wavelength-selective reflective elements are arranged so that the laser system operates stably in the coherence collapse lasing regime.

Abstract: A cable routing clip consists of a rear crosspiece, two clip arms extending from the front of the crosspiece and forming an open ended slot, a pair of retaining members extending across the open end of the slot and one or more mounting tabs extending from the rear of the crosspiece. The inside faces of the clips arms are rounded to provide edge protection to cables held by the clip and the outer faces are planar and suitable for applying indicia of the cables within the slot. A front face of a retaining member is also planar and can accept indicia. The rear mounting tabs fit into rectangular slots and include ramped faces and locking notches. When two tabs are present, one of the tabs can be shorter than the other so that a smaller rectangular slot can used on one side of a pair of mounting slots.

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 testing device provides pin height, continuity, and concentricity testing for coaxial connectors and cables. The testing device provides connector jacks with support shafts that properly align and stabilize the connectors during testing. Circuitry is provided to indicate if the pin height is sufficient, if the cable is an open circuit, a short circuit, or has an adequate continuity, and if the center pin of the connector is sufficiently concentric with the outer sleeve. The jacks may have an outer surface with slots providing a slip fit configuration that allows the coaxial connector to be easily inserted and removed.

Abstract: A telecommunications network is provided. The network uses a ring of ring switches to provide a transport mechanism for data packets that is transparent to the data and protocols contained in the data packets. This transport mechanism is simple and low cost to implement. Such networks can carry, for example, video signals between a primary site and secondary sites of a cable network to provide video on demand, near video on demand, distance learning and other video based services. Such networks can also provide telephony service as voice over IP.

Abstract: A connector assembly and method, the assembly having a housing which defines a connector window. A connector is disposed within the window. The connector is slidable between a first and second position relative to the housing. The assembly may include a carriage for receiving one or more connectors. The carriage slides with the connectors between first and second positions. The assembly may include means for retaining the carriage and connectors in a selected position relative to the housing.

Abstract: A fiber optic telecommunications frame is provided including panels having front and rear termination locations, the panels positioned on left and right sides of the frame. The frame includes vertical access for the rear cables. The frame further includes left and right vertical cable guides for the front patch cables. The frame further includes cable storage spools for the patch cables. The frame includes a horizontal passage linking the left and right panels and the cable guides. A lower portion of the frame defines splice tray holders and a central passage from the splice tray holders to the rear sides of the left and right panels. From a front of each panel, access to a rear of the panel is provided by the hinged panels. Alternatively, the panels can form connector modules with front termination locations and rear connection locations for connecting to the rear cables. The modules can house couplers, such as splitters, combiners, and wave division multiplexers.

Abstract: A communication system is described. The communication system includes a distribution network between a head end terminal and at least one remote unit. The head end terminal receives upstream telephony and control data modulated on a plurality of orthogonal carriers in a frequency bandwidth over the distribution network. The head end terminal includes a polyphase filter that filters at least the upstream telephony data to provide ingress protection for the modulated orthogonal carriers. The communication further includes a service unit multicarrier modem associated with the at least one remote unit and operatively connected to the distribution network for modulating at least upstream telephony information on at least one carrier orthogonal at the head end terminal to at least one other carrier in the frequency bandwidth.

Abstract: A cable exit trough with pivoting cover. The cover having a cover plate and a pivot plate hingedly mounted thereto for easy access to the trough. The exit trough may define an insert aperture for receiving modular cable management inserts. The modular insert providing an additional cable management device such as a curved guidewall. The cable management device may alternatively be fixed to the cable exit trough. Removable snap-mounted flanges may also be included in the exit trough.

Abstract: A fiber optic isolator device is used by fiber optic systems operating at more than one wavelength. The device may be inserted anywhere within the fiber network. The fiber optic device permits the separation of the wavelengths so that an optical isolator module can isolate a first wavelength without significantly affecting the second wavelength. This device is useful isolating a communications signal at 1.55 &mgr;m while avoiding significant losses for an optical time domain reflectometry signal, for example at 1.3 &mgr;m.

Abstract: The present invention relates to the management of cross-connect cables extending from fiber termination blocks with sliding fiber adaptor modules within a fiber distribution frame. A cable management divider is mounted onto a set of arcuate cable guides to direct the cables extending across the cable guides into cable channels. The purpose for providing these channels is to reduce the interference to movement and access of cables from fiber optic adaptor modules in different areas of the fiber termination block. Depending on the density and configuration of the fiber adaptors and sliding modules within the fiber termination block, multiple sets of arcuate cable guides may be provided and multiple cable management dividers may be mounted to the arcuate cable guides. The fiber distribution frame also incorporates a cable trough system to direct cables after the cables extend through the arcuate cable guides and through the channels defined by the cable management dividers.

Abstract: A TE dual-mode resonator is provided. The TE dual-mode resonator has first and second modes. The resonator includes an enclosure having a cavity with an interior surface. The resonator further includes a dielectric resonator body, having a central portion with a plurality of members extending outwardly from the central portion. The dielectric resonator body is coupled directly to the interior surface.

Abstract: A receptacle having a base and an electrical component mounted on the base is provided. At least two tubular connectors pass through the base. Each of the at least two tubular connectors is connected to the electrical component. Each of the at least two tubular connectors is for receiving a pin and is adapted to make electrical contact with the pin to electrically connect the electrical component to the pin.

Abstract: The present disclosure relates to an insert for a jack. The insert includes a connector mount having a main body including a first side positioned opposite from a second side. The connector mount also includes a snap-fit connection structure positioned at the main body for securing the connector mount to the jack, a divider positioned at the first side of the main body, and an insulation displacement terminal housing positioned at the first side of the main body. A plurality of contact springs are separated by the divider, and a plurality of insulation displacement terminals are housed by the insulation displacement terminal housing. The insert further includes a circuit board that provides electrical connections between the insulation displacement terminals and the contact springs. The circuit board is mounted at the second side of the main body.

Abstract: An optical switch formed on a substrate with receiving channels defined by alignment grooves formed in the substrate that are offset from alignment grooves that form the inputting channels. The offset receiving channels reduce the output power differentiation from an optical switch in which there is no offset.

Abstract: Embodiments of the present invention provide tools for installing and extracting fuses. In one embodiment, the tool has an elongate handle. A guideway spans the length of the handle, and a pair of jaws, adapted to retain the fuse, protrudes from an end of the handle. A rod is disposed within the guideway and is selectively actuatable within the guideway for releasing the fuse from the jaws.

Abstract: An electronic system is provided. The electronic system includes a logic device and at least one input/output interface coupled to the logic device. The electronic system further includes an input/output (I/O) device with memory coupled to the at least one input/output interface, wherein the memory of the I/O device is mapped as an address space region that is directly readable and writable by a processor.

Abstract: A power distribution panel with a heat sink integrated as a portion of a surface of the power distribution panel and a heat generating component of an electrical circuit within the power distribution panel being connected to the heat sink to allow heat conduction away from the heat generating component.

Abstract: A low profile cable exit trough including an arch-wall with a sidewall portion. A projecting member extends from a concave surface of the arch-wall and is spaced from the sidewall portion to receive a top end of an upstanding side of a lateral trough therebetween. The arch-wall passes through the plane occupied by the upstanding side of the lateral trough at a significant angle, i.e. greater than or equal to 15 degrees, in order to allow for a lower profile above the lateral trough.