wherein certain information of the Ethernet telegram are not incorporated into the internal data telegram during the conversion such that, after the conversion, {HEAD ~ the internal data telegram} is not {TAIL ~ an Ethernet telegram}; and 
is not
wherein certain information of the Ethernet telegram are not incorporated into the internal data telegram during the conversion such that , after the conversion , { HEAD ~ the internal data telegram } is not { TAIL ~ an Ethernet telegram } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH