International Business Machines Corporation

Jds Uniphase Corporation

Paul John Sendelbach

David Peter Gaio

Raymond J Thatcher

William K Hogan

Scott Michael Branch

Michael Francis Hanley

David R Motschman

Eugene E Distad

The present invention relates to a latching system for an optical transceiver module that eliminates the use of compound latching mechanisms by providing a single latching lever for unplugging the module from its mounting cage. The latching lever includes a pair of arms with a bail handle on one end to facilitate actuation of the latching lever and manipulation of the module. The other end of the latching lever applies a force to the cage to separate first and second mating latching members on the module and the cage, respectively. The fulcrum of the lever is provided by a bend in each arm, which acts like a journal, mounted in a bearing depression formed in the module housing.

Optical transceiver latch

The invention provides an internal electromagnetic shield that prevents the radiation of electromagnetic emissions from electro-optical components in high speed data transfer systems. The present invention provides an internal shield with at least one aperture to allow the connector portion of an electro-optic component to pass through for connection to an optical fiber. By providing an internal shield, electromagnetic interference (EMI) is substantially reduced without interfering with the mechanical connection between an electro-optical component and an optical fiber. The internal shield typically is formed of a thin metallic sheet having apertures to receive the connector portion of electro-optical components. In a shield for an input/output device, which includes an optical signal generator and optical signal receiver, the shield may include two bores.

Data transfer system incorporating optical fiber link module with internal electromagnetic shield

An electrical component is provided that has a plurality of electrical leads. Further, an electromagnetic interference shield and ground cage is provided which has a plurality of conductive walls connected together to form an enclosure having an open bottom. One of the walls has a plurality of openings formed therein to allow the plurality of leads to be passed into the enclosure. The electromagnetic interference shield and ground cage further has at least two ground connection pins attached to a lower edge of the walls. One of the leads is a ground lead that is electrically coupled to the electromagnetic interference shield and ground cage at one of the openings, thus reducing the length, inductance and impedance of the ground lead.

Electromagnetic interference shield and ground cage

A connector system for a removable transceiver module that interfaces with an electronic device, such as a computer, switch, subsystem, peripheral device, disk drive, tape drive and other input/output devices. The electronic device includes an enclosure having a bezel that has an opening for receiving the module. A circuit board is mounted within the enclosure. A guide member is mounted on the circuit board and is elongated between first and second ends along a first axis. A connector block is located at the first end of the guide member, while a door is pivotally mounted at the second end of the guide member. The module is slidably engageable with the guide member in a direction along the first axis. The module also includes electrical contacts electrically connectable with corresponding electrical contacts in the connector block. The door is pivotable between an open position exposing the opening in the bezel and a closed position where a portion of the door outside the enclosure covers the opening. The door effectively minimizes the likelihood of dust entering the electronic device. Preferably, to provide effective EMI shielding, the door and the bezel each comprise an electrically conductive material and are configured to make electrical contact with each other when said door is closed. The door may be positively latched in the closed position and spring biased toward the open position. The door preferably includes features for guiding and latching the module.

Connector system with outwardly opening door for a removable transceiver module

The invention provides an internal electromagnetic shield that prevents the radiation of electro-magnetic emissions from electro-optical components in high speed data transfer systems. The present invention provides an internal shield with at least one aperture to allow the connector portion of an electro-optic component to pass through for connection to an optical fiber. By providing an internal shield, electromagnetic interference (EMI) is substantially reduced without interfering with the mechanical connection between an electro-optical component and an optical fiber. The internal shield typically is formed of a thin metallic sheet having apertures to receive the connector portion of electro-optical components. In a shield for an input/output device, which includes an optical signal generator and optical signal receiver, the shield may include two bores.

Growing community of inventors

Rochester, MN, United States of America

Paul John Sendelbach