The USB transceiver units 730A, 730B may provide {HEAD ~ an interface} to {TAIL ~ respective USB signal lines} 
to
The USB transceiver units 730A , 730B may provide { HEAD ~ an interface } to { TAIL ~ respective USB signal lines }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL