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