Electrical connector system

Claim 1

An electrical connector system for electrically connecting circuits between a backplane and a daughtercard comprising: a first connector comprising a dielectric housing with an open cavity defined by at least side walls and a plurality of conductive contacts retained in said housing and arranged in elongated rows parallel to said side walls, said contacts having leads extending outwardly from said housing for electrically engaging circuits on the backplane and further having posts extending into said cavity with the posts of the outermost rows being spaced inwardly from said side walls; and a second connector comprising a dielectric housing and a plurality of conductive contacts, said housing having passages therethrough for receiving some of said contacts and slots in outside surfaces of respective sidewalls for receiving other of said contacts, said contacts having receptacles for receiving and compressively gripping said posts when said second connector is inserted into said cavity in said first connector and further having leads attached to and extending from said receptacles for electrically engaging circuits on a daughtercard.