Multitech GFU19 User's Guide download pdf (Page 21)

CONFIGURING AND COMMUNICATING WITH YOUR DEVICE

AT!STATUS

3. Configure socket parameters

Enter:

AT#SCFG=1,1,300,240,600,50

4. Activate context one

Enter:

AT#SGACT=1,1

5. Create UDP connection to Server port

Enter:

AT#SD=1,1,####,"###.##.###.##" where #### is the server port and ###.##.###.## is the IP number.

The device responds with OK, which indicates a successful connection. You can send and receive data through the

socket connection.

Exit Data Mode and Close Connection

To exit data mode and close the socket:

■ Enter the escape sequence: +++

■ To close Socket 1, enter: AT#SH=1

The device responds with OK.

■ To close the data connection, enter:AT#SGACT=1,0

The device responds with OK.

Configuring Device as UDP Listener to Accept UDP Client Connections

To configure the device as a UDP client:

1. Check signal strength.

Enter:

AT+CSQ

2. Verify device is registered on the cellular network.

Enter:

AT!STATUS

3. Configure socket parameters

Enter:

AT#SCFG=1,1,300,240,600,50

4. Activate context one

Enter:

AT#SGACT=1,1

5. Set firewall rule to accept connections:

AT#FRWL=1,"###.##.###.#","###.##.###.#" where ###.##.###.# represents the IP range. For example:

AT#FRWL=1,"204.26.122.1","204.26.122.255"

6. Set connection ID 1 for UDP listening mode on port 7000.

Enter:

MultiConnect

Cell 100 Series MTC-EV3 User Guide 21

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Multitech GFU19 User's Guide Page 21