In {HEAD ~ response} to {TAIL ~ its inputs}, the input circuit in each device can use comparators, gates and a multiplexer to determine the logic state being transmitted over the pair of LVDS signal paths from the other device 
to
In { HEAD ~ response } to { TAIL ~ its inputs } , the input circuit in each device can use comparators , gates and a multiplexer to determine the logic state being transmitted over the pair of LVDS signal paths from the other device
OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH