LDAP configuration reference

How is CA LDAP server configured to work as proxy on mainframe?

We want to know how CA LDAP server is configured to work as proxy on mainframe. 

Is there any tech reference or manual I can refer to? 

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