The configuration for a bindable directory object for the service is identical for Active Directory, ADAM, and AD LDS, because these directory types support the msDS-BindableObject class of directory objects.
Create a service user in the directory and assign a password to the user. The FQDN of the service is used for the value of the LdapServiceFQDN property when configuring the LDAP mechanism. See Editing TdgssUserConfigFile.xml for Service Binds.
The directory configuration requires only the DN and user password for the object. The objectClass information can be in any form that accurately represents a bindable object, and may vary among directories.