In this video, Jacob Wittenberg walks you through the basic connection and configuration settings to connect a Trimble Da2 Antenna to ArcGIS Field Maps for iOS.
As a reminder, ArcGIS Field Maps requires a map to be published before you can utilize the Da2 for data collection or editing.
Please note, there are a few variations of batteries that can supply power for the DA2 and the video may not be representative of your new or current power source.