Exports allow you to provision services to remote machines, databases and APIs. Some exports, such as sqlradius and sqlradius_withdomain, enable a feed for retreiving rating/usage data.
Exports can be added and edited under Sysadmin | View/Edit Exports.
Selecting an export on the Sysadmin | View/Edit Exports | Add a new export page will show more information on that specific export, including available options, setup and usage.
Exports are activated by associating them with one or more service definitions: Sysadmin | View/Edit Service definitions.