02
TA
Attach SD1000U to serial port of host computer and power on the SD1000U. Check Mode LED. (See
3.2)
Make sure that the Connect LED is turned off and the Stanby LED is turned on before attempting to
send any kind of AT commands to the SD1000U. Then launch HyperTerminal, it can usually be found
in start >programs >accessories >communication >HyperTerminal. Select the Serial port that
SD1000U is connected to.
Select the Serial port setting in the window displayed, please make sure the serial settings in
Hyperterminal are set to the same settings as the SD1000U’s serial settings.
To view the AT commands that are being typed, you will need to enable the local echo option. Go to
File->Properties->Settings->ASCII setup and select the “Echo typed characters locally” option.
For expanded AT commands, please refer to Appendix A. AT commands.
Example of AT commands:
