3) Down-loading matrix for the sattelite
STATEInitialAfter sending ACKAfter sending NAK
EVENT 012
Satellite checks the terminal No.:If it is Satellite checks the termcorrect, satelliteinal No.:If it is correct, satellite
ID-ENQsends ACK and goes to 1.sends ACK and goes to 1.?
If it is not correct, Satellite ignores the ID-ENQ.If it is not correct, Satellite ignores the ID-ENQ.
ACK???
NAK???
After satellite has received TEXT, goes to 0.Satellite goes to 0.
EOT?(Normal end)(ERROR END)
Before satellite has received TEXT, ignores the EOT
Satellite checks the text block, if the blSaock is cotellite rrechect,cks the text block, if the block is correct,
Satellite sends ACK and goes to 1.Satellite sends ACK and goes to 1.
If it is not correct, satellite sends NAK and goes to 2.If it is not correct, satellite sends NAK and goes to 2.
TEXT?If transmission cannot be continued, satellite sends EOTIf transmission cannot be continued, satellite sends EOT
and goes to 0.and goes to 0.
(ERROR END)(ERROR END)
Satellite sends EOT, and goes to 0.The host goes to 0.
TIME-UP?(ERROR END)(ERROR END)
Time-up is 7 secondsTime-up is 7 seconds
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ACEC
