Does the Hubgrade require any additional power connections?

No. 24 Vdc power for the module comes from the ELGA system.

Does the Hubgrade module need any IT modifications at the customer site?

No. The Hubgrade module uses mobile networks for data connection.

How do I know the Hubgrade module is installed and functioning correctly?

There are LEDs included on the module which verify power, network connection and data transmission. Full instructions are provided in the operator manual.