{TAIL ~ The electronic circuit} 2 wherein {HEAD ~ the communications pin} is a serial communications protocol signal pin 
{ TAIL ~ The electronic circuit } 2 wherein { HEAD ~ the communications pin } is a serial communications protocol signal pin
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH