Uploading an MQTT certificate authority file

To connect the meter to an MQTT broker, you need to provide a file that lets the meter trust the broker. This file is called a certificate authority (CA) file; the CA file contains one or more trusted certificates. The CA file must be in Privacy-Enhanced Mail (PEM) format and uploaded to the meter before making an MQTT connection.

Prerequisites:

• A CA file in PEM format.

  Tip: The broker's certificate chain must include one of the certificates in the CA file.

• The file name is exactly CAfile.pem.

  Note: The file name is case-sensitive.

• SFTP access

To upload an MQTT certificate authority file:

1. Connect to the meter using an SFTP client.

2. Navigate to where you have saved CAfile.pem on your system.

3. Navigate to the meter's documents folder.

4. Transfer CAfile.pem from your system to the meter's documents folder.

For more information, see Transferring files using SFTP.