In {TAIL ~ response} to {HEAD ~ 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 
In { TAIL ~ response } to { HEAD ~ 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 TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD 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