Turns out that contrary to its description and Help content, the Distinguished Name field needs to be set to the LDAP DN of a service user account with Domain Admin privileges with the Password field set to the password for that account. 
How do I setup Unisphere Remote 3.0 Directory Services for Active Directory?  I have a typical AD domain, and I can't figure out what to do with the mandatory Password field since there is no Username field available for the LDAP Bind.  The Installation Guide doesn't have any advice and here's what's listed in the Help section: Password Account's  password (the bind credential used to authenticate the account).     What account?
How do I setup Unisphere Remote 3.0 Directory Services for Active Directory?