                         Release Notes
                          PN 93000451

               Digi AccelePort Xp Adapter Driver
                 Version 5.0.307.0, 08/14/2002

                     Microsoft Windows 2000
               Microsoft Windows XP Professional
                   Microsoft Windows XP Home

                        Software Package
                          PN 40002248


  CONTENTS

  Section      Description
  -------------------------------
  1            Introduction
  2            Supported Products
  3            Known Limitations
  3            Driver Update
  4            Additional Notes
  5            History


  1. INTRODUCTION

     This document describes the device driver that supports
     the Digi devices listed below. The driver is for use
     in the Microsoft Windows 2000 and Windows XP environments.

     Refer to the following number when searching the Digi
     International Inc. Web site (www.digi.com) or the FTP
     site (ftp.digi.com) for the latest software package:

     40002248_<highest revision letter>


  2. SUPPORTED PRODUCTS

     Digi AccelePort 2p Adapter
     Digi AccelePort 4p Adapter
     Digi AccelePort 8p Adapter
     Digi AccelePort 16p Adapter


  3. KNOWN LIMITATIONS

     To use the adapter with serial printers, reboot the system after
     device installation or after renaming ports. This is a known
     limitation of the Print Spooler which does not detect changes
     in the list of available ports automatically.


  4. DRIVER UPDATE

     WINDOWS 2000
     ------------

     To update a previously-installed device driver to a new
     driver, please follow these steps.

     a. First, run the program dgaxcln.cmd to move the existing INF
        files for the adapter. This ensures that the new driver
        files will be installed instead of the old driver files.
        Dgaxcln.cmd is part of the driver software package and can
        be found in the same directory as the new driver files.

     b. Next, navigate to the Device Manager and locate the device
        whose device driver is to be updated:

          o From the Desktop, right-click on "My Computer"
          o Select "Manage"
          o In the left-hand side of the Computer Management
            window, select "Device Manager"

        Locate the adapter to update:

          o In the right-hand side of the window, expand the
            device category entitled: "Multi-port serial adapters"
          o Right-click on the device to update
          o Choose "Properties"

        Begin the upgrade process:

          o Click the "Driver" tab
          o Click the "Update Driver..." button
          o Click "Next >"
          o Verify that the default option is selected, "Search for
            a suitable driver for my device (recommended)"
          o Click "Next >"
          o Deselect all options
          o Select the option, "Specify a location"
          o Click "Next >"
          o Enter the path to the new driver files and click "OK"
          o Click "Next >"

     c. Windows will display a "Digital Signature Not Found"
        message, explaining that the driver is not signed.  Click
        "Yes" to continue the installation. You may see several of
        these warnings -- simply click "Yes" for each message to
        proceed with the upgrade.

     d. Windows will now install the new device driver for the
        adapter and its modems.

     e. Follow any other instructions to complete the installation.

     f. Click "Finish" to dismiss the Upgrade Device Driver Wizard.

     g. Repeat steps b. through f. for each device to be upgraded.


     WINDOWS XP
     ----------

     The Windows XP upgrade process is very similar to the Windows
     2000 upgrade process.

     a. First, run the program dgaxcln.cmd to move the existing INF
        files for the adapter. This ensures that the new driver
        files will be installed instead of the old driver files.
        Dgaxcln.cmd is part of the driver software package and can
        be found in the same directory as the new driver files.

     b. Next, navigate to the Device Manager and locate the device
        whose device driver is to be updated:

          o Open the Start menu
          o Right-click "My Computer"
          o Select "Manage"
          o In the left-hand side of the Computer Management
            window, select "Device Manager"

        Locate the adapter to update:

          o In the right-hand side of the window, expand the
            device category entitled: "Multi-port serial adapters"
          o Right-click on the device to update
          o Choose "Properties"

        Begin the upgrade process:

          o Click the "Driver" tab
          o Click the "Update Driver..." button
          o Click "Next >"
          o Verify that the default option is selected, "Search for
            a suitable driver for my device (recommended)"
          o Click "Next >"
          o Deselect all options
          o Select the option, "Specify a location"
          o Click "Next >"
          o Enter the path to the new driver files and click "OK"
          o Click "Next >"

     c. Windows will display a dialog indicating that the
        software has not passed Windows Logo testing. Choose
        "Continue Anyway" to proceed with the upgrade. You
        may see several of these warnings -- click "Continue
        Anyway" for each message to continue the installation.

     d. Windows will now install the new device driver for the
        adapter and its modems.

     e. Follow any other instructions to complete the installation.

     f. Click "Finish" to dismiss the Upgrade Device Driver Wizard.

     g. Repeat steps b. through f. for each device to be upgraded.

  5. ADDITIONAL NOTES

     On-line help is available when you install the product.

     Installation documentation can be found at Digi's Web site,
     http://www.digi.com, or at Digi's FTP server, ftp://ftp.digi.com.


  6. HISTORY

     Version 5.0.307.0 (M1P)
     -----------------------
     CHANGES

        o Removed support for AccelePort RAS, DataFire RAS and
          DataFire SYNC adapters
        o Enhanced co-installer to support the "Update Driver..." functionality
          available through the Device Manager
        o Assigned new part number and released driver as new product

     BUG FIXES

       o Fixed write timeout failure, in which timed-out writes were being
         inadvertently completed with STATUS_CANCELLED
       o Fixed write timeout failure caused by enabling the "Write Complete
         When Sent" option

     Version 4.0.229.0 (L Release)
     -----------------------------
     BUG FIXES

        o DataFire Sync configuration dialog for X.25 does not show up (#8068)
        o DataFire Sync bugchecks under HIS 2000 SNA configuration (#7820)
        o WanLinks driver does not remove keys from SERIALCOMM when
          uninstalled (#8412)
        o The DigiAsyn.sys driver is hanging in an endless loop (#7656)
        o AccelePort Xp bugchecks when returning from Standby (random) (#7649)
        o Parity error detection failure with AccelePort Xp (#7542)
        o Microsoft FAX does not work with AccelePort Xp (#5702)
        o Unable to print with AccelePort Xp (#5081)
        o Multiple issues with E1/R2 parameter configuration (#7956, #7897)
        o The DigiAsyn.sys driver does not handle zero length read requests
          correctly
        o Some timed-out writes are being inadvertently completed with
          STATUS_CANCELLED
        o Write timeout does not work when Write Complete When Sent option
          is enabled
        o Dgclean.cmd does not delete DIGIMPS.inf and MDMDGDEN.inf files
        o DataFire Sync driver may crash during driver update or uninstall

        Updated DataFire RAS firmware to M release. Detailed information
        about firmware enhancements and bugfixes can be found in the
        DataFire RAS firmware Release Notes.
