Library /sys$common/syshlp/sysmanhelp.hlb IO, AUTOCONFIGURE, Qualifiers, /EXCLUDE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /EXCLUDE=(device_name)

    Specifies the device type that should not be automatically
    configured. Use valid device names or mnemonics that indicate
    the devices to be excluded from the configuration. You can use
    wildcard characters with this qualifier.

    The /SELECT and /EXCLUDE qualifiers are not mutually exclusive,
    as they are on VAX systems. You can specify both qualifiers on
    the command line.