Abstract: A data processing system and method providing a jumper which provides standby power from a redundant power supply to one of at least two critical functions in a frame having bays for holding at least two nodes. The redundant power supply supplying power to one of the nodes in the frame and one of the critical functions. A jumper is slidably engageable in the frame in place of one of the nodes. The jumper, when engaged in the frame, transfers power from the redundant power supply to the other of the critical functions. The jumper is included in a jumper book of an airblock which includes passive airblock books. Mechanical keys on the passive airblock books prevent the removal of the jumper book until after the passive airblock books are removed.

Abstract: A technique for testing an electronics assembly for a power short circuit is provided. The technique includes pre-characterizing power off resistance of an electronic component(s) of a first packaging level from at least one power boundary of the electronic component(s). The characterizing of the power off resistance occurs prior to placement of the electronic component(s) into an electronics assembly of a higher packaging level. The technique further includes determining actual power off resistance of the electronics component(s) after placement thereof into the electronics assembly, with the actual power off resistance being determined from the at least one power boundary. Thereafter, the actual power off resistance of the electronic component(s) in the electronics assembly is compared with the pre-characterized power off resistance of the at least one electronic component(s), and a determination is made therefrom whether a power short circuit exists within the electronics assembly.

Abstract: A power connector that uses ambient air to cool exposed power conductors through the use of either passive or forced air convection. The power conductors in the power connector are distributed for maximum contact with the cooling air. The power connector's housing is designed to cause maximum air flow across and/or against the power conductors.