The tdatSystem object corresponds to the system element in an IP XML document. It has a name attribute that corresponds to a Teradata Vantage system, or Unity server.
The tdatSystem object must be a child of the tdat object, and the parent of the authorization hierarchy for LDAP users.
The LdapSystemFQDN property for a system points to the tdatSystem object that defines LDAP authorizations (including IP filters) for directory users who access the system.