摘要:
A layered tape having pockets therein is used as part of a communication cable to improve alien crosstalk attenuation. In one embodiment, a single layered tape has an embossed layer bonded to a matrix tape layer having non-continuous conductive traces, with the resulting layered tape reducing alien crosstalk between cables. Pockets resulting from the embossing are filled with a gas such as dry air to decrease the dielectric constant through the effective thickness of the tape. A layered tape may alternatively be provided as a separate tape from a matrix tape, such that coupling between conductive pairs of the cable and the matrix tape is reduced. Decreasing the dielectric constant of materials between adjacent cables also decreases alien crosstalk coupling between the cables.
摘要:
A cable and method of forming the cable are presented. The cable contains twisted wire pairs disposed in a cavity defined by a jacket. Each wire has a conductor and an insulator surrounding the conductor. The cable may also contain a spline that separates the twisted wire pairs. At least one of the insulators or the jacket is helically corrugated such that ridges extend radially inward or outward. The ridges of the insulators may be the same or different. The cable is extruded from an extruder. The jacket may contain corrugations after being extruded by the extruder. The cable may be passed through dies to form a helically corrugated jacket. The jacket heated by a heater prior to being passed through the dies, or may pass through the dies while still hot from the extruder.
摘要:
Certain embodiments of the present invention provide a hook and loop tie for securing a bundle of cables. The hook and loop tie comprises a loop component, a non-slip component, and a hook component. The loop component has a first end and a second end opposite the first end. The non-slip component is affixed to the loop component and extends from the first end of the loop component toward the second end of the loop component. The hook component is affixed to the loop component, extends from the second end of the loop component toward the first end of the loop component, and overlaps at least a portion of the non-slip component.
摘要:
An intelligent physical layer management system is provided that includes active electronic hardware, firmware, mechanical assemblies, cables, and software that guide, monitor, and report on the process of connecting and disconnecting patch cords plugs in an interconnect patching environment. RFID tag integrated chips are used to identify which switch port a patch cord is plugged into. The system is capable of monitoring patch cord connections to detect insertions or removals of patch cords or plugs. In addition, the system can map the patch field in interconnect configurations.
摘要:
A communication jack having crosstalk compensation features for overall crosstalk interference reduction is disclosed. In one embodiment, the jack is configured to receive a plug to form a communication connection, and comprises jack contacts disposed in the jack, with each contact having at least a first surface and a second surface. Upon the plug being received by the jack, the plug contacts interface with the first surface of the jack contacts. The jack further includes a first capacitive coupling connected between two pairs of jack contacts to compensate for near end crosstalk, with the first capacitive coupling being connected to the pairs of jack contacts along the second surface adjacent to where the plug contacts interface with the jack contacts. A far end crosstalk compensation scheme is also set forth.
摘要:
A documentation system for a network is provided. The system has a data port and a destination device, each of which includes an electronic module with an identification code. A source device sends query signals along a network path addressed to the data port and destination device. Each of the data port and destination device electronic module responds to the query addressed to the data port and destination device by transmitting its identification code to the source device. A processor and switch in communication with the source device direct the source device to send the query signals and to interpret the responses. The data port and destination device electronic modules are powered by a local power source and patch cord. A patch cord may be adapted to provide power from the local power source both to the destination device and to the data port.
摘要:
The invention is a modular cable termination plug having a conductor divider having an entrant barb and a plurality of divider channels, a load bar having a plurality of through holes and a plurality of slots, and a plurality of contact terminals. Additionally, the invention may include a housing, a strain relief collar and a strain relief boot.
摘要:
Certain embodiments of the present invention provide a DIN rail wiring duct. The DIN rail wiring duct has a top, a bottom, and a side. The DIN rail wiring duct includes a base. The base has a top wall, a bottom wall, a sidewall, and a divider wall, which define a channel and a channel opening for accessing the channel. The DIN rail wiring duct also includes a cover for the channel opening. The cover has a top wall and a sidewall substantially perpendicular to the top wall. The top wall of the cover is removably connected to the top wall of the base and the sidewall of the cover is rotatably connected to the sidewall of the base such that the channels are accessible through the channel openings from the top and the side of the DIN rail wiring duct when the cover is rotated from a closed position to an open position.
摘要:
A method and apparatus for measuring the insertion loss of a fiber optic connection is provided. The invention generally comprises a light source providing light to a test connector which contains a juncture of two fiber optic cables. The test connector has one or more opaque portions surrounding the fiber optic juncture. A pyrometer or other heat detection means is then used to measure any temperature increase as a result of light scattered into the opaque portions of the test connector.
摘要:
An intelligent network patch field management system is provided that includes active electronic hardware, firmware, mechanical assemblies, cables, and software that guide, monitor, and report on the process of connecting and disconnecting patch cords plugs in an interconnect or cross-connect patching environment. RFID tag integrated chips are used in some embodiments of the system to allow for detection of patch cord insertion and removal at switch ports. RFID tags may also be used to detect users and control access to the network based on the users' levels of authorization. Network access can also be controlled at the outlet jack level. The system is capable of monitoring patch cord connections to detect insertions or removals of patch cords or plugs. In addition, the system can map entire networks.