Abstract: A blocking member is sized and shaped to be installed beneath a trigger or triggers of a duplex connector. The blocking member prevents depression of the trigger(s) of the duplex connector and hence prevents depression of latches to release the plugs of the duplex connector from mated receptacles. The blocking member does not block actuation of the latches of the duplex connector. Through the use of a tool, the trigger(s) may be bypassed and the latches operated directly by the tool to release the plugs of the duplex connector when mated to receptacles.

Abstract: A fiber optic adapter releasably retains at least one optical fiber connector and includes a body portion having a first side, a second side, and a through-opening between the first side and the second side, a first housing projecting from the body portion first side, the first housing including a bore for receiving the at least one optical fiber connector and having at least one sidewall and an end wall, the housing overlying the through-opening, and a retainer mountable on the first housing and including first and second flexible arms for engaging opposite sides of the first housing to attach the retainer to the first housing, the retainer including at least one projection configured to block the removal of the at least one optical fiber connector from the bore when the flexible arms engage the opposite sides of the first housing.

Abstract: Cable conduits include an elongated tubular conduit body having an exterior surface and an interior surface that define a tube wall, the interior surface of the tubular body defining a longitudinal internal cavity that is configured to hold a plurality of jacketed cables. The conduits also have first and second longitudinally extending channels within the tube wall. A first ripcord is free-floating within at least a portion of the first longitudinally extending channel and a second ripcord is free-floating within at least a portion of the second longitudinally extending channel. The first and second longitudinally extending channels are located on opposite sides of the longitudinal internal cavity. Related methods of slitting such cable conduits are also provided.

Abstract: A communications cabinet includes a housing defining a location for mounting communications equipment, the housing having a wall formed of a first material with a first penetration resistance, a vent opening in the wall, and a door. At least one plate of material having a second penetration resistance greater than or about equal to the first penetration resistance is mounted between the vent opening and the location for mounting the communications equipment, and the plate is positioned to stop projectiles larger than a given size from traveling in a straight line from the at least one vent opening to the location for mounting communication equipment while leaving an airflow path from the vent opening to the location for mounting the communications equipment that passes around at least one edge of the plate of material through a gap between the at least one plate and the wall.

Abstract: An optical fiber retainer includes a first split band of material having a bottom, a top, a front and a back surrounding an interior passage, the front including a first portion depending from the top and having a bottom edge and a second portion extending from the bottom and including a top edge, the top edge and bottom edges comprising a first split of the first split band. The bottom includes an inner surface comprising a wall of the interior passage and an outer surface facing away from the interior passage, and the top includes an inner surface comprising a wall of the interior passage and an outer surface facing away from the interior passage. The bottom outer surface includes a first connector element, and the top outer surface includes a second connector element configured to releasably mate with another connector element of another split band.

Abstract: A network interface unit (NIU) for a modular workstation includes a housing. One or more input network adapters on the housing receive input connectors of a first multi-network cable that is connected to a distribution network. One or more output network adapters on the housing receive output connectors of a second multi-network cable that is connected to another NIU of another modular workstation to provide for a daisy chain connection. One or more workstation adapters are provided on the housing for providing connections to one or more networks of various security levels. Cables that are connected to one or more CPUs or telephones of the workstation are connected to respective ones of the workstation adapters. The workstation adapters of the NIU may provide one or more of visual, physical, and geographical verification and segregation of the network connections to enhance the integrity of the security of the various networks available at the NIU.

Abstract: A splice holder includes a base member and a plurality of high wall pairs on top of the base member each having first and second wall members spaced by a first distance, and adjacent ones of the high wall pairs are spaced by a distance less than the first distance. A first plurality of low wall pairs project from the base member on one side of the high wall pairs, and a second plurality of low wall pairs project from the base member on the other side. The first and second plurality of low wall pairs are shorter than the high wall pairs. The splice holder is configured to support a first level of splices running through the low wall pairs and high wall pairs in between and a second level of splices running through the high wall pair and supported on top of two low wall pairs.

Abstract: A waste water management system for a fuel cell cabinet is provided. The waste water management system includes a sealed device that collects and manages the flow of the water from a fuel cell. The sealed device manages a flow of the water from the fuel cell to one of a container and an exterior of the fuel cell cabinet.

Abstract: Communications cable management systems include a cable trough and a door that is configured to provide access to the cable trough. A first latch structure is attached to the door that includes a first latch and a second latch. A second latch structure is attached to the door that includes a third latch and a fourth latch. The systems also include a support structure that has first through fourth latch receiving assemblies that are configured to receive the respective first through fourth latches. The first through fourth latch receiving assemblies may comprise hinge brackets and/or pivotable latch members. The first and second latches and their corresponding first and second latch receiving assemblies are each configured to act as a hinge when the third and fourth latches are removed from their corresponding latch receiving assemblies.

Abstract: A fuel cell cabinet liquid cooling system is provided. The fuel cell cabinet liquid cooling system includes a fuel cell, a liquid cooling system for dissipating heat generated by the fuel cell, and a controller that controls the liquid cooling system for maintaining a predetermined temperature range of a first cooling liquid of the fuel cell.

Abstract: Patch panels are provided that include a mounting frame and a plurality of MPO-to-MPO couplers that are mounted on the mounting frame. Each MPO-to-MPO coupler includes a first connector port that is accessible from the front side of the patch panel and a second connector port that is accessible from the rear side of the patch panel. The patch panels also include a first set of antennas, where each antenna from the first set of antennas is adjacent the first connector port of a respective one of the MPO-to-MPO couplers and a second set of antennas, where each antenna from the second set of antennas is adjacent the second connector port of a respective one of the MPO-to-MPO couplers.

Abstract: Communications plugs are provided that include a plug housing. A plurality of plug contacts are mounted in a row at least partly within the plug housing. The plug contacts are arranged as differential pairs of plug contacts. Each of the differential pairs of plug contacts has a tip plug contact and a ring plug contact. A first capacitor is provided that is configured to inject crosstalk from a first of the tip plug contacts to a first of the ring plug contacts at a point in time that is after the point in time when a signal transmitted through the first of the tip plug contacts to a contact of a mating jack reaches the contact of the mating jack.

Abstract: An interconnection between a twisted pair communications cable and a communications connector having a plurality of IDCs includes: a housing having an aperture and a pair of first and second IDCs extending within the aperture; a twisted pair communications cable having a twisted pair of first and second conductors and a separator positioned between the first and second conductors; and a termination device. The termination device comprises: a body having an outer surface; a channel in the outer surface of the body, the channel configured to receive a twist of the first and second conductors and maintain the twist in position; and IDC guide structure configured to guide the first IDC into engagement with the first conductor at a first engagement location and the second IDC into engagement with the second conductor at a second engagement location, the engagement locations positioned within the channel and the twist of the conductors.

Abstract: A communications system includes a plurality of patch panels having a plurality of connector ports connected to individual communication channels, a switch that provides access to multiple networks via one or more switch ports, a system manager that controls interconnections between the patch panels and the switch, and a plurality of patch cords configured to selectively interconnect patch panel connector ports. The system manager is configured to receive a request to connect an individual communication channel to a specific network, to identify which patch panel connector ports are required to be patched together via one or more patch cords in order to establish a circuit to the requested network, and to enable a switch port to activate the circuit. The system manager is configured to monitor connectivity of a circuit and to park a switch port associated with the circuit in response to detecting a change in circuit connectivity.

Abstract: Reusable coaxial connectors include a connector body, a contact post that is at least partly within the connector body, a compression sleeve that is configured to impart a compressive force to secure one or more elements of a coaxial cable between the connector body and the contact post when the compression sleeve is in a seated position, and an internally threaded rotatable nut that is attached to the connector body. The compression sleeve includes a first recess on an external surface thereof that is configured to receive a first member of an extraction tool that is used to move the compression sleeve from its seated position to an unseated position.

Abstract: Coaxial connectors include a connector body and an inner contact post. A compression sleeve is also provided that is configured to impart a generally circumferential compressive force to secure one or more elements of a coaxial cable between the connector body and the inner contact post when the compression sleeve is in a seated position. The compression sleeve or the connector body includes a first disengagement mechanism that is configured to assist moving the compression sleeve from the seated position to an unseated position in which at least some of the circumferential compressive force is eliminated.

Abstract: A cable for ensuring the authenticity thereof and discouraging the unauthorized counterfeiting of the cable may include a cable core and an opaque outer jacket surrounding the cable core. The jacket may include identifying indicia visible on an inner surface of the opaque outer jacket when opened, but visually obscured from viewing from outside the opaque outer jacket when unopened. The indicia may be integrally molded plastic stripes, for example.

Abstract: A managed port circuit includes a detection circuit that is disposed in a communication channel between a first local port and a second local port and a controller that is coupled to the detection circuit and is operable to configure the detection circuit in a detection configuration in which the first and second local ports are connected to the controller and a second pass through configuration in which the first and second local ports are connected to each other via the communication channel, the controller being further operable to determine when an end device is connected to one of the first and second local ports when the detection circuit is in the detection configuration.

Abstract: A connector is provided for simultaneously improving both the NEXT high frequency performance when low crosstalk plugs are used and the NEXT low frequency performance when high crosstalk plugs are used. The connector includes PCB substrates made of materials having different dielectric frequency characteristics.