Explicit terminal definitions
If the CICS autoinstall feature is not used, each terminal must be defined before you logon using RDO. If an attempt is made to logon with an OSPI ACB that has not been defined to CICS, the session is not accepted and error messages are written to the transient data queue.
Figure 1 provides an example of how to use Resource Definition Online to define an OSPI virtual terminal.
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