What is the default maximum length of an LDAP DirectoryString?

What is the default maximum length of a DirectoryString? Starting with the DirectoryString definition RFC 2252, eventually I found that the DirectoryString OID  1.3.6.1.4.1.1466.115.121.1.15 is defined as follows:

The X.520(1988) directoryString is defined as:

       DirectoryString { INTEGER : maxSize } ::= CHOICE {
            teletexString       TeletexString (SIZE (1..maxSize)),
            printableString     PrintableString (SIZE (1..maxSize)) }

What is the default maximum string length if maxSize is not specified? The only thing I've found is that it is "implementation dependent"