Sollae Systems CSW-H85K2, Руководство пользователя

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CSW-H85K2 User Manual Ver. 1.2
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Termination of online status – entering the AT command mode
Figure 5-9 time chart
Time States
~ TCP connection is on-line.
①
The mode is changed to “ command mode ” after receiving “ +++ ” .
~ command mode (TCP connection is off-line)
② CSW-H85K2 sends FIN segment right after the “ ATH ” arrives.
~ processes of TCP disconnection
③ TCP connection is terminated
~ CSW-H85K2 sends “ NO CARRIER ” with disconnection.
Table 5-13 states of each point
CSW-H85K2 changes the mode to AT command, when receiving “ +++ ” . In this state, the
communication with remote host is unavailable because CSW-H85K2 processes only AT
commands. Whenever you want to go back to on-line state, just give
“ ATO ” command.