CSW-H80 User Manual Ver. 3.0
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Termination of online status – entering the AT command mode
Figure 5-8 time chart
Time
States
~
TCP connection is on-line.
①
The mode has changed to “command mode” after receiving “+++”.
~
command mode (TCP connection is off-line)
②
CSW-H80 has sent FIN segment right after the “ATH” has arrived.
~
processes of TCP disconnection
③
TCP connection has been terminated
~
CSW-H80 sends “NO CARRIER” with disconnection.
Table 5-12 states of each point
CSW-H80 changes to the command state, when receiving “+++”. In this state, the
communication with remote host is not possible because CSW-H80 processes only AT
commands. Whenever you want to go back to on-line state, just give “ATO” command.