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Asynchronous Serial Communications?

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The Question is:

Is it possible to obtain a PCI card that has either RS232 or RS422 sockets on
 that can be accessed on the Alpha running VMS as TTA ports ?
I am currently trying to obtain at least 4 ports of this type via an ES40. The
 two 9 pin d-types on the back of an ES40 are accessed as OPA0: and TTA0:   I
 need more TT ports than that for our application.
I cannot find one of these PCI cards anywhere on the Compaq Web site that is
 qualified for OpenVMS operating system. Please help.
My alternative may be a terminal server and LAT.

The Answer is :

  Via terminal server (IP or LAT) access obviously, via the PBXDA, and
  at least one third-party (Digi International) offers asynchronous
  PCI communications options.

answer written or last revised on ( 15-MAR-2001 )

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