Release Notes P/N 93000362_C

                              Digi RealPort Driver
                                Version 2.4.34.0

                              Microsoft Windows 2000
                               Microsoft Windows XP

                          Software Package P/N 40002164_C

                                   11/12/2001


CONTENTS

1. INTRODUCTION
2. SUPPORTED PRODUCTS
3. BUG FIXES
4. KNOWN LIMITATIONS
5. ETHERLITE UPGRADE
6. PRINTERS
7. HISTORY


1. INTRODUCTION

   The RealPort Driver provides Windows 2000 seamless access to serial ports
   on Digi PortServer or PortServer II products.

   The Digi PortServer Product family allows Windows 2000 users to attach
   serial devices (modems, terminals, and printers) to the Ethernet based
   terminal server.  Users can use Windows 2000 RAS, Citrix, dial-out modem
   pooling applications and terminal server applications such as Point-of-Sale
   (POS) with the flexibility of terminal server connected devices.

   The RealPort Driver requires the TCP/IP driver to be installed and properly
   configured.


2. SUPPORTED PRODUCTS

   PortServer
   PortServer II
   PortServer TS
   Digi One RealPort
   EtherLite 2/80/160/162


3. BUG FIXES

   See HISTORY for details.


4. KNOWN LIMITATIONS

   Software flow control characters set to the null (0x00) character for the
   Xon and Xoff character is not supported by the driver.

   The IOCTL_SERIAL_XOFF_COUNTER is not supported by the driver.


5. ETHERLITE UPGRADE

   This release of the RealPort Driver does support the EtherLite 2/80/160/162.
   Note that you have to take some extra steps to use the RealPort software with
   your EtherLite, if you have previously used the EtherLite driver.

   A. Uninstall the old EtherLite driver, reboot your system.
   B. Update the EtherLite firmware using the DGIPSERV utility which is
      part of this driver package. You can download the latest firmware files
      from the Digi Support Web site at http://support.digi.com.
   C. Install the new RealPort Driver.


6. PRINTERS

   If you are planning to use the RealPort Driver with Serial Printers,
   you have to reboot the system after the 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.


7. HISTORY

   Version 2.4.34.0 - November 12, 2001
      NEW FEATURES
        The RealPort Driver now supports the PortServer TS, Digi One RealPort,
        and EtherLite 2/80/160/162 devices.

        The DGIPSERV utility for the supported EtherLite products allows easy
        configuration of device parameters and to upgrade the EtherLite's firmware.

        From this release on, the version numbers for all files have been changed
        to match the driver version number.

      BUG FIXES
        Fixed several printing related issues:
          - Serial Printing did not work in some cases.
          - Ports were not displayed in Print Properties.

        In some cases the RealPort Driver caused Windows 2000 to bugcheck when
        the IP address or the COM port names were changed.

   Version 2.3.10 - November 13, 2000
      BUG FIXES
        The RealPort Driver will attempt to reestablish its connection to a
        PortServer when a loss of its TCP/IP connection is detected.  This action
        will occur for any currently open serial ports without user or application
        interaction.  Previously when the TCP/IP connection was lost, any open
        serial ports would remain in an error state until they were closed and
        reopened.  This fix makes those steps unnecessary.

   Version 2.2.1 - September 24, 1999
      NEW FEATURES
        Driver released on the Microsoft® Windows 2000 CD-ROM.