SENA SS800 - Manual (Page 53)

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ATBn, ATCn, ATLn, ATMn,
ATNn, ATP, ATT, ATYn,
AT%Cn, AT%En, AT&Bn,
AT&Gn, AT&In, AT&Qn,
AT&V, ATMn, AT\An,
AT\Bn, AT\Nn, ATXn
none OK [CR][LF]
ATS?, ATSn=x, AT&Cn,
AT&Wn, AT&Zn=x
none ERROR [CR][LF]
ATFn [CR][LF] None
If n=1
OK [CR][LF]
If others,
ERROR [CR][LF]
ATWn None
If n=0
OK [CR][LF]
If others,
ERROR [CR][LF]
Table 4-3 AT commands Response Code
Verbose Code
(After “ATV1” command executed) Numeric Code
(After “ATV0” command executed) Description
OK 0 Command executed
CONNECT 1 Modem connected to line
RING 2 A ring signal has been detected
NO CARRIER 3 Modem lost carrier signal
ERROR 4 Invalid command
HelloDevice
SS100
Serial
Device
ATZ
ATZ
OK
ATDT
CONNECT
DATA….
DATA….
ATDT
+++
ATH
ATH
Command mode
OK
TCP mode
Command mode
TCP connection
Request
TCP connection
Established.
DATA….
DATA….
TCP
disconnection
NO CARRIER
Request TCP
disconnection
Figure 4-7 Typical case of command/data flow of modem emulation mode