International Business Machines Corporation

Christopher Lee Durham

James A O'Connor

Justin Potok Bandholz

Martin Joseph Crippen

Theodore Brian Vojnovich

James Edward Hughes

Jeffery Michael Franke

Joseph Edward Bolan

David John Jensen

John K Langgood

Jerry Don Ackaret

Anthony Wayne Miles

Wilson Earl Smith

Edward J Bodette

Bay Van Nguyen

Brian Scott Oakley

Derek Robertson

John M Sheplock

Brian E Bigelow

John Gary Bulluck

Roy Lee Draughn

Kevin M Cash

David L Cowell

Robert Fung-chen Pan

A method and circuit for implementing an enhanced availability personality card for a chassis computer system, and a design structure on which the subject circuit resides are provided. The personality card includes a first erasable programmable read only memory (EPROM) and a second EPROM, each EPROM storing Vital Product Data (VPD) and a first temperature sensor and a second temperature sensor sensing temperature. A primary bidirectional bus and a redundant bidirectional bus are respectively connected between the first EPROM and the first temperature sensor and the second EPROM and the second temperature sensor, and a pair of chassis management modules. Each chassis management module includes a switch connected to both the primary bidirectional bus and the redundant bidirectional bus providing redundant paths, enabling continued function with failure of any critical personality card component.

Implementing ultra high availability personality card

An electrical machine, such as a router, switch, hub, etc., includes a housing in which a Primary Backplane and Secondary Backplane are mounted in stacked spaced relationship. A primary Bus is fabricated on the Primary Backplane and a secondary Bus is fabricated on the Secondary Backplane. Connectors with feed through elements provide mechanical support and electrical transmission between the Primary Backplane and Secondary Backplane.

Backplane for common building block

An electrical machine, such as a computer, network interconnecting device, etc., has an enclosure fabricated from a one piece material fold and cut into a desired form including sidewalls with an opening in one of the sidewalls and projections to which other components are connected. The components include a support member and brackets interconnecting the support member to the projections. The support and brackets are arranged to form cavities in which circuit cards can be inserted.

Low profile computer or communications network interconnecting device and housing therefor

Growing community of inventors

Mebane, NC, United States of America

Christopher Lee Durham