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