ConiuGo 700100180 GPRS Quad-Band Modem RS232 700100180 Data Sheet
Product codes
700100180
24
Some simple but often used AT- commands are explained below (all AT- without „ “,
AT- commands can be put in by capital letters as well as small letters):
Functional test
After sending “AT” the modem should send back “OK”.
PIN-number
Check by “AT+CPIN?” if a PIN-number has been already entered, or enter the PIN-
number by using “AT+CPIN="xxxx“”. The PIN has to be typed in with quotation
marks!
Signal quality
Check the signal quality by “AT+CSQ”. With this command the physical signal quality
is tested. It should be higher than 10, otherwise a data transmission can be unstable
despite of a successfully booked in modem.
Status question
By “AT+CREG” and “AT+COPS?” the registration status and the provider name are
shown by the device.
11. Troubleshooting
In case the modem still reacts you can load the standard settings of the manufac-
turer with the command “AT&F”. Then you have to re-start the program and adjust all
settings. Please ensure that the COM- port parameters (baudrate, data bits, parity,
stop bits) are correct.
Check whether other programs use the COM- port of the computer (PC). E.g., Hot-
sync managers can retain control of the port and should be disabled when not in use.
Restart the computer and activate only the terminal program.
Connection cannot be established:
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Common mistakes that may happen are:
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Common mistakes that may happen are:
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•
The SIM-card is not inserted into the modem.
•
The PIN-number is not entered.