The HUB fulfils several functions:

Safety function:

As soon as the front-door station detects physical movement (manipulation), the HUB disconnects the network connection to the front-door station.

Relais function:

The door openers for the front door, side entrance door and garage door, for example, can be connected to the three relays integrated in the HUB. Since the HUB is placed in the utility room, these relays are protected against manipulation.

The garden door or the entrance gate, for example, can be connected to the three relays integrated in the front-door station.