Patents Assigned to ADC
  • Patent number: 6828915
    Abstract: A fault warning system controls light sources and a warning signal to provide an indication of fatal and non-fatal faults in a communication system. The circuitry uses a pull-down circuit in electrical communication with light and signal control circuits. The circuit can be operated to activate a first light emitting diode (LED) if an operational status of a monitored circuit is either fatal or non-fatal fault. The circuit can be operated to deactivate a second LED if an operational status of a monitored circuit is fatal, and the second LED remains active if the operational status of the circuit is a non-fatal fault.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: December 7, 2004
    Assignee: ADC DSL Systems, Inc.
    Inventor: Gary Gottlieb
  • Patent number: 6827632
    Abstract: A method for polishing a ferrule structure having first and second end faces is disclosed herein. The method includes positioning the ferrule structure within a housing such that the first end face is located outside the housing. The method also includes polishing the first end face while the ferrule structure is positioned within the housing and the first end face is located outside the housing. The method further includes reversing the ferrule structure within the housing such that the second end face is located outside the housing, and polishing the second end face while the ferrule structure is positioned within the housing and the second end face is located outside the housing.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: December 7, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventors: Steven C. Zimmel, William J. Pomroy
  • Publication number: 20040239512
    Abstract: A method of responding to an overload condition includes supplying power on a communication medium in order to provide power to a network element coupled to the communication medium. The method further includes determining if an overload condition exists. If the overload condition exists, the supply of power on the communication medium is stopped for a predetermined period of time. After the predetermined period of time has elapsed, resuming supplying power on the communication medium. If the overload condition still exists after resuming supplying power on the communication medium, signaling a first alarm and/or shutting down a power supply used to supply power on the communication medium.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Applicant: ADC DSL SYSTEMS, INC.
    Inventors: Charles Weston Lomax, Clark Wayne Tollerson, Melvin Richard Phillips
  • Publication number: 20040240665
    Abstract: A method of ramping up a power supply that supplies power on a communication medium. The method includes supplying power on the communication medium with the power supply operating at a first set point, determining if an overload condition exists, and, if the overload condition does not exist, signaling a first alarm. If the overload condition exists, power is supplied on the communication medium with the power supply operating at a second set point. It is determined if the overload condition continues to exist while operating the power supply at the second set point. If the overload condition continues to exist while operating the power supply at the second set point, a second alarm is signaled.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Applicant: ADC DSL SYSTEMS, INC.
    Inventors: Melvin Richard Phillips, Charles Weston Lomax, Christopher Tad Ammann
  • Publication number: 20040239513
    Abstract: Methods and systems of monitoring voltage input to network elements are provided. One method includes receiving an input voltage for a line-powered network element, applying the input voltage across a primary winding of a flyback power converter during an on-time of a primary switch, and transferring the input voltage from the primary winding to a secondary winding of the flyback power converter during an off-time of the primary switch. The method further includes sensing the voltage of the secondary winding during the on-time of the primary switch; and drawing minimal current from the flyback power converter.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Applicant: ADC DSL SYSTEMS, INC.
    Inventors: Charles Weston Lomax, James Xavier Torok
  • Patent number: 6824362
    Abstract: A fan control system uses a closed loop system to adjust the actual operating speed of a fan or fans to a desired operating speed. The desired speed and actual speed are compared in a high gain amplifier to generate a control signal to adjust the actual operating speed of the fan given the feedback.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: November 30, 2004
    Assignee: ADC DSL Systems, Inc.
    Inventor: George Bertram Dodson, III
  • Patent number: 6826206
    Abstract: A method of evaluating a tuneable laser and determining suitable laser operation points. Part of the light emitted by the laser is led to a Fabry-Perot filter and to a pair of light detectors to measure the power of the laser and deliver a corresponding output signal representative of the wavelength of the detected light. Injected currents are swept through the laser tuning sections to pass through different current combinations, and the ratio between the detector signals is measured during the sweep of the reflector current in both directions. The control combination for the tuning currents is stored when the ratio between the detector output signals lies within a predetermined range signifying that the emitted light lies within one of a number of wavelengths given by the Fabry-Perot filter, and the ratio lies within the predetermined range for a given reflector current in both sweep directions of the reflector current.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: November 30, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventor: Lars Andersson
  • Patent number: 6826280
    Abstract: Telecommunications systems are provided which include telecommunications equipment, multi-pair connectors and cables, and management devices for grooming the conductors of the connectors and cables for efficient use of the conductor pairs between equipment. A further management device provides cross-connect fields for the conductor pairs of the system. A chassis may house the grooming device, any cross-connect device, and possibly a POTS splitter device. The grooming and cross-connects may be manually controlled, or electronically controlled, including locally or remotely.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: November 30, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventors: Ahmad R. Sajadi, Robert M. Cain, Jr., Robert J. Koziy, Todd A. Morgenstern, Steven M. Swam
  • Patent number: 6824312
    Abstract: Telecommunications chassis and associated modules for use with the telecommunications chassis are disclosed. Embodiments of the telecommunications chassis include structures such as horizontal channels and/or horizontal surfaces with ridges and/or slots in one surface and slots in ridges of another for receiving edges of modules that mount within the chassis. Other structures of embodiments include divider slots in the horizontal surfaces that receive edges of divider walls to fix the divider walls in place, heat baffle surfaces included within the chassis, and/or cable guides with radius limiters. Module embodiments include structures such as faceplates with angled portions with fiber optic cable connections directed toward the fiber cable's direction of travel. Other module structures include shells that enclose the circuit board and/or provide angled portions with fiber optic cable connections.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: November 30, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventors: Brian J. McClellan, Dale C. Madsen, Robin L. Berg, Jr., Joseph S. Czyscon, Steven W. Skradde, Derek G. Sayres, Todd Husom
  • Publication number: 20040234207
    Abstract: A fiberoptic connector is constructed entirely of metal and includes structure to radiate heat. Preferably, the fiberoptic connector also includes an arrangement to indicate whether the fiberoptic connector is holding an energized optical fiber. Preferably, the heat radiating structure includes fin structure and a metal stamping projecting from the connector housing. The indicating arrangement preferably is a temperature sensitive strip secured to the housing, which changes color based upon the heat radiated by the optical fiber carried within. Methods of indicating an energized fiberoptic connector and of dissipating heat from a fiberoptic connector are provided.
    Type: Application
    Filed: June 30, 2004
    Publication date: November 25, 2004
    Applicant: ADC Telecommunications, Inc.
    Inventor: Marlon E. Holmquist
  • Publication number: 20040234225
    Abstract: The present disclosure relates to a device for holding a plurality of fiber optic connectors. The device includes a clamp defining a plurality of ferrule receiving openings, a set plate with openings for the fibers, an alignment surface on which the ferrules rest, and an actuator for moving moveable portions of the clamp. The clamp has a plurality of moveable portions that at least partially define the ferrule receiving openings. The moveable portions are moveable between a rest, biased closed position in which the ferrules are clamped within the ferrule receiving openings, and an open position in which ferrules can be inserted in the ferrule receiving openings.
    Type: Application
    Filed: February 12, 2004
    Publication date: November 25, 2004
    Applicant: ADC Telecommunications, Inc.
    Inventors: Paul Suek, George Pfeffer
  • Patent number: 6821031
    Abstract: A method and apparatus are disclosed that permit multi-directional fiber optic connections to a device. The multi-directional aspect of the fiber optic connections permit the connections to be aligned closely with the direction of travel of the fiber optic cables that interface with the device. Closely aligning the fiber optic connections on the device with the fiber optic cables' direction of travel maximizes the bend radius of the fiber optic cable near the point of connection or eliminates the bend altogether and reduces the likelihood of a broken fiber or signal attenuation.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: November 23, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventors: Vern Loch, Craig Bentz, Joseph Coffey
  • Patent number: 6822540
    Abstract: A method for tuning a cavity filter is provided. The cavity filter includes a plurality of tuning members. The method includes selecting a stored set of positional values for the tuning members, driving the tuning members of the cavity filter to the stored set of positional values, and further adjusting the position of the tuning members as necessary to achieve a desired frequency response for the cavity filter.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: November 23, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventor: Hannu K. Impio
  • Patent number: 6822980
    Abstract: A wide band reflector, for example a wideband grating reflector is provided as the output coupler of a semiconductor laser. This permits the semiconductor laser to be integrated with other components on a single semiconductor substrate, if desired, without requiring that the laser beam be emitted from the tuning element. Thus, the laser can be tuned over a wide bandwidth with efficient power extraction and high wavelength selectivity.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: November 23, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventor: Lennart P. O. Lundqvist
  • Patent number: 6823063
    Abstract: The present invention relates to telecommunications equipment racks including vertical cable guides, horizontal troughs, cross aisle panels and cross-connection modules for telecommunications equipment racks. The vertical cable guides define vertical cable channels for both network infrastructure and cross-connection cables. The structure defining the second cable channel is hingedly attached to the structure defining the first cable channel. The horizontal cable troughs include both upper and lower troughs. The upper cable trough defines two cableways for directing cross-connection and other cables, and provides access openings for cables to pass into and out of each cableway and between the two cableways. The lower cable trough defines a cableway and provides access openings for cables extending into and out of the cableway. Cable troughs attached to adjacently mounted equipment racks cooperate to form continuous horizontal cableways.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: November 23, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventor: Jose-Filonel T. Mendoza
  • Publication number: 20040228599
    Abstract: A cable exit trough is mountable to a lateral trough section either during initial assembly of the cable routing system, or at a later date. The exit trough includes a bracket portion mountable to the top edge of one of the sides of the lateral trough section. Two lead-ins are provided to lead the cable in an upward direction from the lateral trough section to the exit trough. The exit trough includes an exit trough portion extending from the bracket portion upwardly away from the lateral trough section. The exit trough portion includes a convexly curved bottom trough surface, and two convexly curved upstanding sides. The exit trough portion and the lead-ins define a cable pathway from the lateral trough section to an exit point of the exit trough portion which can either lead downwardly relative to the lateral trough section, or horizontally.
    Type: Application
    Filed: June 18, 2004
    Publication date: November 18, 2004
    Applicant: ADC Telecommunications, Inc.
    Inventors: Timothy Jon Haataja, Tomas Walter Kampf
  • Patent number: 6819857
    Abstract: A storage tray arrangement for storing cable slack in fiber optic systems includes a vertically oriented frame and at least one tray mounted to the frame in a vertical plane parallel to the frame. There is a mounting construction that permits the tray to be pivotally secured to the frame. The mounting construction permits the tray to be selectively pivoted relative to the frame within the vertical plane. In preferred arrangements, the trays are mounted as tray sets having at least two trays mounted to a common pivot post. Particular preferred trays include trays having scalloped side walls. Methods for storing cable slack utilize trays and mounting arrangements as described herein.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: November 16, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventors: Joel B. Douglas, John T. Van Scoy, Lonnie E. Hannah, Wayne John Giesen, Curtis Lee Puetz, Trevor D. Smith
  • Patent number: 6819571
    Abstract: A circuit card that includes a single ground plane connectable to a chassis-ground and a logic device having a ground pin connected to the single ground plane. The connection between the ground pin and the single ground plane provides a direct path between the logic device and the chassis-ground. A power supply is connected to an input pin of the logic device for providing a logic voltage to the logic device. The power supply is connectable to a battery.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: November 16, 2004
    Assignee: ADC DSL Systems, INc.
    Inventors: Donald J. Glaser, Douglas G. Gilliland, Dennis J. Vandenberg
  • Patent number: 6814624
    Abstract: An electrical connector including a circuit board, a contact spring insert, and an insulation displacement terminal insert wherein the contact spring insert is positioned between the insulation displacement terminal insert and the circuit board. The insert assembly can be mounted to a jack housing to form a telecommunications jack for receiving telecommunications plugs.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: November 9, 2004
    Assignee: ADC Telecommunications, Inc.
    Inventors: Gordon P. Clark, Loren J. Mattson
  • Publication number: 20040219829
    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.
    Type: Application
    Filed: June 3, 2004
    Publication date: November 4, 2004
    Applicant: ADC Telecommunications, Inc.
    Inventors: Gordon P. Clark, John Schmidt, Loren Mattson