If the SBCS table data set does not exist, the FTP request fails even if a valid DBCS table data set using that name exists.
For information about using FTP.DATA to specify different SBCS tables for control and data connections, see z/OS Communications Server: IP User's Guide and Commands.
If you require a local DBCS translation table, you must name it in correlation with the standard client search order. For example, if you had a custom Kanji table you could name it user_id.FTP.TCPKJBIN.