Multikey is an input device for manual operation via a keyboard or for reading RFID tags. The Multikey is connected to the Multipass Lite via a network cable. The power will be supplied by PoE. The Multipass Lite is connected to the Internet and controlled by the management system. The respective door opener is controlled via the Multipass Lite. For security reasons, there is no direct connection between the Multikey and the door opener.