The CA LDAP Server has a CATSS_UTF backend. This backend provides access
to the CA Top Secret security database through the R_Admin callable service.
Here is the link to the section in the documentation that discusses this:
https://docops.ca.com/ca-system-z-security-communication-servers-dsi-ldap-pam/15-1/en/
configuring/configuring-ca-ldap-server/configure-the-catss_utf-backend