TDM Recorder server role associations

Associated Roles	Mandatory, Optional, or If Exists	Association Scope	Association Type & Limits	Why is this Association Required or used?
Recorder Control Gateway	If Exists	Enterprise	One-to-many	The integration service reads the server role Entity that contains a logical, predefined set of components (system software or certified third-party software) deployed in the Data Center and Site Zones that provide specific functionality for the system. level configuration of the Recorder Control Gateway by mapping to the Recorder Control Gateway server role.