This version of the CHARSET option applies for stream input and output files. It gives the user the capability of using EBCDIC data files as input files, and specifying the character set of output files. If you attempt to specify ASIS when using stream I/O, no error is issued and character sets are treated as ASCII.
.-ASCII--. >>-CHARSET--(-+-EBCDIC-+-)-------------------------------------><
Choose a suboption of CHARSET based on what form the file has (input) or what form you want the file to have (output).
CHARSET(ASCII) is the default.