The controllers may coordinate {HEAD ~ communication} between {TAIL ~ respective USB transceivers} 730A, 730B and isolator transceivers 740A, 740B 
between
The controllers may coordinate { HEAD ~ communication } between { TAIL ~ respective USB transceivers } 730A , 730B and isolator transceivers 740A , 740B
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH