Electrical connector system

Claim 1

An electrical connector system (10), for electrically connecting circuits between a backplane and a daughtercard comprising; a first connector (12) comprising a dielectric housing (16) with an open cavity (24) defined by side walls (22a,22b) and a plurality of conductive contacts (18) retained in said housing (16) and arranged in elongated rows parallel to said side walls (22a,22b) said contacts (18) having leads (34) extending outwardly from said housing for electrically engaging circuits on the backplane and further having posts (30) extending into said cavity (24) with the posts (30) of the outermost rows of contacts (18a,18b) being spaced inwardly from siad side walls (22a,22b); and a second connector (14) comprising a dielectric housing (38) and a plurality of conductive contacts (48) said housing (38) having passages (42) therethrough for receiving some of said contacts (40c) and slots (46) in outside surfaces of respective sidewalls (48a,48b) for receiving other of said contacts (40a,40b) said contacts (40) having receptacles (60) for receiving and compressively gripping said posts (30) when said second connector (14) is inserted into said cavity (24) in said first connector (12) and further having leads (62) attached to and extendig from said receptacles (60) for electrically engaging circuits on a daughtercard.