All Teradata access modules can use session character sets.
Workstation – For any workstation access module to run with BTEQ or TPump using UTF‑16 session
character set, the access module must accept UTF‑16 as the attribute value of attribute
CHARSET_NAME.
Mainframe – For any mainframe access module to run with BTEQ or TPump using the UTF‑8 session
character set, the access module must accept UTF‑8 as the attribute value of attribute
CHARSET_NAME.