Connecting to modem via PuTTY (Windows)
- In the Device Manager, find out which virtual COM the modem is attached to.
- Open the ‘Modems’ category fly-out
- Right click the Sierra modem entry
- Select properties. The port number [n] is listed at the top of the main page
- Open PuTTY
- Select the Serial radio button in the main window
- In the <<connection>> box, replace COM1 with the COM[n] from the modem properties
- Set the baud rate to 115200
- Click Open.
- Make the modem “echo” back the commands. In the terminal window, type:
- ATE1 and press Enter. It is possible that no text will be displayed until the command is executed
- If Windows 7 is installed, change USB communication mode from QMI to MBIM with the following commands
- AT!ENTERCND=”passwd” <–where passwd is replace with actual password
- AT!USBCOMP=1,1,100D
- User can now send any AT commands necessary
Connecting to modem via minicom (Ubuntu)
- From Ubuntu terminal
sudo minicom -s
- Serial port setup
- Press a – change name to ‘/dev/ttyUSB2’
- Press g to change software flow control to YES
- Exit (this will drop you to a new shell)
- Make the modem “echo” back the commandes. In the terminal window, type:
ATE1
- Serial port setup
- User can now send any AT commands necessary