The user interface 136 may be in {HEAD ~ communication} with the controller 137 via {TAIL ~ one or more signal lines} or shared communication busses 
via
The user interface 136 may be in { HEAD ~ communication } with the controller 137 via { TAIL ~ one or more signal lines } or shared communication busses
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH