JCL for sequential devices

The DDNAME operands on the DFHTCT TYPE=SDSCI macros specify the ddname of the DD statements which you must provide in the CICS startup job stream.

    //indd   DD  ...                input data set
    //outdd  DD  ...                output data set

where indd is the data set containing input from the simulated terminal, and outdd is the data set to which output to the simulated terminal is sent.