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