The link apparatus provides {TAIL ~ circuits} for automatically prepending a start of {HEAD ~ frame} to a message being placed on the bus after determining that the conditions on the bus are suitable for transmitting messages 
The link apparatus provides { TAIL ~ circuits } for automatically prepending a start of { HEAD ~ frame } to a message being placed on the bus after determining that the conditions on the bus are suitable for transmitting messages
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH