Each device includes {HEAD ~ an input circuit} and a differential output driver connected to the single pair of {TAIL ~ LVDS signal paths} 
Each device includes { HEAD ~ an input circuit } and a differential output driver connected to the single pair of { TAIL ~ LVDS signal paths }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL