21
Intercel Pty. Ltd.
A.C.N. 007 077 161
33 Glenvale Crescent
Mulgrave VIC. Australia 3170
Email :
Internet :
www.intercel.com.au
Ph : 61 3 9239 2000 Fax : 61 3 9561 2614
AT$RESET
Use to remotely reset the modem, normally after sending of new parameters
AT$RESET
SAM Reset...
OK
AT$SMSTOSERIALON
This command allows the connecting device to receive SMS notification for 300s: e.g.
“+CMTI:
"SM",1”, t
he connecting device must send AT+CMGR to read SMS and AT+CMGD to delete it,
during this 300s period, modem will not able to decode AT$ commands sending to it over SMS.
8.3 CSD Call Escape Sequence
During CSD call to the Smart SAM3S modem, send three consecutive EscEscEsc or hex number
sequence 0x1B 0x1B 0x1B to switch the modem between data mode and remote AT commands mode.
Notices
-In SAMMODE=0, after power on the MCU turns on the 3G module, checks its baud rate, turns on LED
before releases control of the 2G module to the connecting device, all this take between 5 to 10
seconds, so the modem is only ready for AT commands here after.
-In SAMMODE=1, the modem take 30 to 60 seconds to connect to GPRS, modem only response to AT
commands from serial port once it is connected to GPRS or after it has failed , if it failed to connect it will
reset after 120 seconds.
-In SAMMODE=2, the MCU take about 20 seconds to set up the 3G module , the modem only response
to AT commands from serial port after setting up is finished.
-In SAMMODE 1 and 2 if the SAM3S modem is powered up without a SIM card it will go into AT
command mode after 20 seconds.
The parameter POLLPERIOD which keep the time in minute which when expired will reset the modem
if SAMMODE=0 or SAMMODE=2, if SAMMODE=1 for PSD mode the modem will use this time to send
TRACE IP packet to check for network connectivity.
-In SAMMODE=1 and 2 the modem can be reset remotely by calling the voice number.
