# SMS Configuration

To configure the programmable RS-232 interface for SMS Notification:

1. From the navigation tree, click Offline Configuration > Edit Offline Configuration. The Offline Configuration navigation tree opens.

2. When prompted to Duplicate Active Configuration, click Yes.

3. In the navigation tree, click RS-232 Only Applications.

4. From the RS2323 Applications listing, select the serial port index that will be used by the application.

5. In the Application section, select Programmable.

6. Configure the required parameters.

7. In the navigation tree, select Commit Changes and Exit. Confirm the commit. Your changes are now saved to the duplicate (inactive) configuration. Configuration changes will not take effect until you have activated the inactive configuration.