Control system 170 is set up by {HEAD ~ an operator} through {TAIL ~ the use} of interface terminal 176 
through
Control system 170 is set up by { HEAD ~ an operator } through { TAIL ~ the use } of interface terminal 176
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH