International Business Machines Corporation

Andrew Rybak

Kenneth Scea

Robert L Nicoletti

Lynda L Anderson

Dennis R Barringer

Harold M Toffler

David C Linnell

Robert E Mahoney

Norman L Hoffman

John G Torok

Gary Franklin Goth

Michael T Peets

John J Loparco

Gerard Vincent Weber, Jr

Tuan D Ngo

Kwok M Soohoo

King M Chu

William M Lorenz

Joseph W Bogdanski

William T Winkler

An electromagnetic compatibility (EMC) clamp for an electrical connector which allows in one embodiment the reduction of a 12&#xd7; cabling system to four 3&#xd7; cabling system. The construction of another embodiment is compatible with the Infiniband technology especially when using Octopus cables. One embodiment of the clamp is in compliance with FCC Class B requirements.

EMC clamp for three exit backshell

An electromagnetic gasket includes a first conductive shell having a pair of first side walls and a pair of first end walls extending from a first bottom wall defining a first opening, the pair of first side walls each having at least one first outward bias positioned thereon, the pair of first end walls each having a first tab extending therefrom, and the first bottom wall having an array of first openings and a pair of apertures; and a second conductive shell having a pair of second side walls and a pair of second end walls extending from a second bottom wall defining a second opening, the pair of second side walls and pair of second end walls each having at least one second outward bias positioned thereon, and the second bottom wall having an array of second openings. The First outward bias is configured to electrically connect to an inner surface defining an empty slot of an electrical enclosure. The second outward bias electrically connects the second conductive shell to first conductive shell when the second conductive shell is disposed within the first opening defined by the first conductive shell.

EMC gasket filler and method

An electromagnetic gasket includes a conductive shell having a pair of side walls and end walls extending therefrom defining at least one opening. The pair of side walls and the end walls have at least one outward bias and at least one inward bias positioned thereon for each opening. The outward bias is configured to electrically connect to an inner tailstock of an electrical enclosure. The at least one opening is configured to receive a connector port housing of a corresponding module therein. The at least one inward bias electrically connects the connector port housing to the inner tailstock of the electrical enclosure. Each module is an electrical module or an optical module, and the at least one inward bias and outward bias provide EMC sealing for multiple connector port housings of a plurality of modules having variable dimensions with respect to at least one of the X, Y and Z axis of the connector port housings.

Universal EMC gasket

Disclosed is an apparatus for associating a cable including a braid with an electronic device and improving electromagnetic compatibility (EMC) shielding between the cable and the electronic device, the apparatus including a tubular member including an outer dimension, and defining a first opening, a second opening, and a cable cavity, the tubular member being configured to associate with the electronic device and the braid of the cable, the outer dimension of the tubular member being further configured to receive a charge from the braid of the cable in a region of the tubular member disposed externally to the electronic device.

Apparatus for associating a cable with an electronic device and improving electromagnetic compatability shielding between the cable and the electronic device

An electromagnetic compatibility (EMC) clamp for an electrical connector which allows in one embodiment the reduction of a 12x cabling system to four 3x cabling system. The construction of another embodiment is compatible with the Infiniband technology especially when using Octopus cables. One embodiment of the clamps is in compliance with FCC Class B requirements.

An improved method and a cassette assembly for protecting electronic components, comprising of a housing that encloses the electronic components disposed over an insulator. The housing also encases a scissor jack component that can move from a first to a second position to enable actuation and unmating of the cassette assembly, such as to a next level of packaging. The housing has an overhang design, having complementary upper openings and lower cable shroud areas for supporting cable connections and for providing heat dissipation relief and EMC containment. Alternate designs provide for other components such as a honey comb screen and an EMC gasket to further enable EMC containment. In addition, other components such as an actuation trap door, a retention feature and card support members or support struts can be added to the design to enable better actuation and provide for an improved structural rigidity.

Enhanced blind-mated input/output card cassette packaging concept

Method and apparatus for associating a cable with an electronic device and improving electromagnetic compatability shielding between the cable and the electronic device

A system for injecting noise signals onto power generated by a power source comprising: a voltage source; a device under test having a power input in operable communication with the noise introduction apparatus; and a noise introduction apparatus interposed between the power source and device under test in operable communication with the voltage source, the noise introduction apparatus comprising, a switching device configured to provide a low impedance conductive path when commanded, and a current limiting device in series with the switching device, the current limiting device configured to provide a low impedance conductivity for a selected current and a selected duration. The switching device and current limiting device cooperate to shunt the voltage source to the power input.

Method and apparatus for evaluating susceptibility to common mode noise in a computer system

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Hopewell Junction, NY, United States of America

Andrew Rybak