The diagnostic information transmission mode is initiated by transmitting {HEAD ~ an initiate diagnostic link mode message} to {TAIL ~ a receiving modem} accompanied by a cyclic redundancy check  
to
The diagnostic information transmission mode is initiated by transmitting { HEAD ~ an initiate diagnostic link mode message } to { TAIL ~ a receiving modem } accompanied by a cyclic redundancy check
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH