The codeword illustrated includes 12 bytes of payload data , including bytes a0 through ab, and 3 bytes of {HEAD ~ redundancy data} , including {TAIL ~ bytes} r1 through r3 
The codeword illustrated includes 12 bytes of payload data , including bytes a0 through ab , and 3 bytes of { HEAD ~ redundancy data } , including { TAIL ~ bytes } r1 through r3
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 OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH