{HEAD ~ Resistor R4} 512 is placed in {TAIL ~ series} between the driver output terminal 118 and signal path 516 
is placed in
{ HEAD ~ Resistor R4 } 512 is placed in { TAIL ~ series } between the driver output terminal 118 and signal path 516
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH