A fail safe circuit for preventing {HEAD ~ an inadvertent communication} of a signal from an input terminal to {TAIL ~ an output terminal} includes a series switching network electrically connected between the input terminal and the output terminal 
to
A fail safe circuit for preventing { HEAD ~ an inadvertent communication } of a signal from an input terminal to { TAIL ~ an output terminal } includes a series switching network electrically connected between the input terminal and the output terminal
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH