{HEAD ~ The wireless data acquisition system} of FIG 1 may require {TAIL ~ each wireless module} to both transmit and receive data in order to establish a serial data transfer path among the modules 
require
{ HEAD ~ The wireless data acquisition system } of FIG 1 may require { TAIL ~ each wireless module } to both transmit and receive data in order to establish a serial data transfer path among the modules
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH