This enables to transmit {HEAD ~ only a necessary portion} of {TAIL ~ the received data} to an external device 
of
This enables to transmit { HEAD ~ only a necessary portion } of { TAIL ~ the received data } to an external device
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH