For example, when the control signal is active, {HEAD ~ a blocking polarity potential} may be applied to {TAIL ~ the output driver} to protect against leakage currents 
applied to
For example , when the control signal is active , { HEAD ~ a blocking polarity potential } may be applied to { TAIL ~ the output driver } to protect against leakage currents
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH