The cloud node is the main system panel and is the gateway to the pdk io cloud platform. It also includes a single io (one door controller) to get your first door up and running. Each site requires one cloud node with an internet connection or optional cellular device. The cloud node then communicates with all local door controllers while storing all data on site in case of an internet outage. Ultimate flexibility is achieved by using ethernet, PoE, and wireless controllers with the cloud node.