VMS Help SET, CARD_READER, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  $ ALLOCATE CR:
    _CRA0: ALLOCATED
  $ SET CARD_READER CRA0:/029
  $ COPY  CRA0: [PEARLMAN.DATAFILES]CARDS.DAT

      The ALLOCATE command requests the allocation of a card reader
      by specifying the generic device name. When the ALLOCATE
      command displays the name of the device, the SET CARD_READER
      command sets the translation mode at 029. Then the COPY command
      copies all the cards read by the card reader CRA0 into the file
      CARDS.DAT in the directory [PEARLMAN.DATAFILES].