The UART 103 transmits {HEAD ~ serial data} to and receives serial data from {TAIL ~ the device} via the electrical interface 101 according to techniques known per se 
The UART 103 transmits { HEAD ~ serial data } to and receives serial data from { TAIL ~ the device } via the electrical interface 101 according to techniques known per se
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH