Circuit card connector arrangement for improved card insertion/removal detection

Abstract

A circuit card connector arrangement is provided, wherein one of the connectors on the card is recessed relative to the other connectors. Using this arrangement, insertion and extraction detection of the card into another card is optimized without the need for a short pin on the other card. The recessed connector is the last connector on the card to make electrical contact with the other card upon insertion and the first connector to lose electrical contact with the other card upon extraction. Since the degree of recess and the choice of which connector is recessed is made by the designer of the inserted card rather than dependent on the design of the main card or board, such as a backplane, onto which the card is inserted, greater flexibility is possible in the design of the card and of the insertion/extraction circuitry on the card. In addition, insertion and extraction can be detected even if the main board does not have a short pin, such as occurs in some legacy system.

Dependencies are inferred from the claim text.