Patent ID: 8208253
Filing Date: 2012-06-26
Classification: H05K

Abstract:
1. A modular packet network device comprising: a chassis; a plurality of logic cards located in a first cooling path within the chassis; an electrical signaling backplane having front side signaling connectors to which the plurality of logic cards connect, the electrical signaling backplane distributing signaling between the plurality of logic cards; a plurality of power converter cards located in a second cooling path within the chassis, the second cooling path passing substantially behind the backplane, the plurality of power converter cards converting primary power to logic power, each power converter card supplying logic power to a strict subset of the plurality of logic cards; a primary power distribution backplane having primary power connectors, the primary power distribution backplane distributing primary power to the plurality of power converter cards through the primary power connectors; and at least two redundant primary power supplies, the primary power distribution backplane independently distributing power from at least two of the redundant primary power supplies to each of the power converter cards through the primary power connectors.