The Zixi Receivers are accessed by ZEN Master through an API. As part of the configuration process, you need to specify the API credentials for access and select one of the preconfigured remote access keys to enable SSH tunneling between the Zixi Receiver and ZEN Master. Access management and user permissions are managed through Access Tags. After adding a Zixi Receiver to ZEN Master, you will need to follow the procedure described in Connecting the Zixi Receiver (Zixi Receiver UI).