{HEAD ~ The two low resistance n transistors} at {TAIL ~ the same time} connect the data lines to ground 
at
{ HEAD ~ The two low resistance n transistors } at { TAIL ~ the same time } connect the data lines to ground
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH