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What Is the External Product Interface

The EPI permits CA OPS/MVS systems that are running under VTAM to communicate with any VTAM application that supports IBM 3270 (SLU2) type virtual terminals. The EPI appears to VTAM as a real 3270 terminal that can emulate any number of 3270 type virtual terminals that are connected to any number of VTAM applications.

Note: The EPI supports IBM model 2, 3, and 4 virtual terminals only. The EPI does not support extended attributes and programmed symbols.