{TAIL ~ The instruments} 44 are coupled to {HEAD ~ the control unit} 16 by a cable 46 
{ TAIL ~ The instruments } 44 are coupled to { HEAD ~ the control unit } 16 by a cable 46
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH