The number of contacts required to independently control {TAIL ~ the N components} is substantially less than {HEAD ~ the total number} of terminals 
The number of contacts required to independently control { TAIL ~ the N components } is substantially less than { HEAD ~ the total number } of terminals
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH