{TAIL ~ One such function} is the prepending of the protocol symbol to {HEAD ~ the first data byte} of the message frame that occurs in response to handshaking of the MCU 
{ TAIL ~ One such function } is the prepending of the protocol symbol to { HEAD ~ the first data byte } of the message frame that occurs in response to handshaking of the MCU
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH