{TAIL ~ Each central unit} is adapted to generate/read binary messages transmitted/received in {HEAD ~ the form} of radio waves by the transmit receive module 
{ TAIL ~ Each central unit } is adapted to generate / read binary messages transmitted / received in { HEAD ~ the form } of radio waves by the transmit receive module
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH