One end of the grid is connected to the first board and {TAIL ~ the other end} of {HEAD ~ the grid} is connected to the second board to move the boards relative to each other causing engagement between the contact elements and the pins of an array package that may be inserted into the openings 
One end of the grid is connected to the first board and { TAIL ~ the other end } of { HEAD ~ the grid } is connected to the second board to move the boards relative to each other causing engagement between the contact elements and the pins of an array package that may be inserted into the openings
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH