There are several methods for connecting to nodes, depending on which client you are using. However, once you connect, the workflow for each interface type is the same with either client. See Understanding Interfaces.
See Connecting to Nodes using the Access Client, Connecting to Nodes using a Mobile Device, and Connecting to Nodes using the Admin Client to learn each client's connection methods.
Then review the following sections to learn the workflow and see the typical applications for each interface type. See Applications for Accessing Nodes.
Power Control for nodes is handled differently, based on which client you are using. See Power Control for Nodes Using the Access Client and Power Control for Nodes Using the Admin Client.
See Interface Types and Abbreviations for details on identifying interfaces that have the same name.