The advantage of using the cable is that the reference junction can, as the need arises, be flexibly connected to {HEAD ~ more than one type} of {TAIL ~ reference unit} 
The advantage of using the cable is that the reference junction can , as the need arises , be flexibly connected to { HEAD ~ more than one type } of { TAIL ~ reference unit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL