Patent ID: 8432294

Claim:
An electronic module for use as a subsea electronic module for an underwater fluid extraction well, comprising a first and a second local area network (LAN) to enable communication within the subsea electronic module; a housing; and one or more bays positioned within the housing, each of the one more bays comprising: a plurality of substantially planar electronics cards, the cards arranged in a stack such that major faces of each card are oriented substantially parallel to major faces of the other cards in the stack and such that a major axis of each card is oriented substantially parallel to major axes of the other cards in the stack, a substantially planar Ethernet switch card orientated relative to the stack such that its major faces are oriented substantially parallel to a main axis of the stack and orthogonal to the orientation of the major faces of the electronics cards within the stack and positioned such that the Ethernet switch card is substantially equidistant from a distal end of each electronics card within the stack, a first Ethernet switch located on the planar Ethernet switch card and capacitively coupled with each of the plurality of substantially planar electronics cards, and a second Ethernet switch located on the planner electronics card and capacitively coupled with each of the plurality of substantially planer cards.