{HEAD ~ One end} of the grid is connected to {TAIL ~ the first board} and the other end of 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 
is connected to
{ HEAD ~ One end } of the grid is connected to { TAIL ~ the first board } and the other end of 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
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH