                          Release Notes
                           PN 93000342

             Digi AccelePort Xp, RAS and Sync Drivers
                         Version 4.0.228.0

                     Microsoft Windows NT 4.0
                     Service Pack 5 or higher

                         Software Package
                          PN 40001974_L

                           04/30/2002


INTRODUCTION

   This driver supports all Digi adapters listed below. These adapters
   provide connectivity in a Windows NT 4.0 environment and support a
   broad range of WAN connections, including serial, V.90 modems,
   ISDN (BRI and PRI), Frame Relay, SNA (SDLC, X.25/QLLC), PPP
   and X.25 protocols.

   Digi International announced the discontinuation of the DataFire RAS
   product line in September 2001.

   In our continued effort to support DataFire RAS customers, we entered
   into a definitive agreement to sell the DataFire RAS product line to
   Patton Electronics Company in November 2001. All business areas related
   to the DataFire RAS product line are now handled by Patton Electronics.

   If you have any technical questions with respect to the DataFire RAS
   product line, please contact Patton Electronics via e-mail at
   support@patton.com, or call 1-301-975-1000 and ask for the technical
   support team.

   Additional information is also available on the Patton Electronics
   website at <http://datafire.patton.com>, including driver updates and
   future releases.

   Please note that the AccelePort RAS product line is NOT part of the
   DataFire RAS product line acquisition by Patton Electronics.
   Digi International will continue to sell and fully support all
   AccelePort RAS products without restrictions.


SUPPORTED PRODUCTS

   AccelePort Xp Family of Adapters:

      AccelePort 2p
      AccelePort 4p
      AccelePort 8p
      AccelePort 16p

   DataFire RAS PTE Family of Adapters:

      DataFire RAS 24 PT1
      DataFire RAS 48 PT2
      DataFire RAS 30 PE1
      DataFire RAS 60 PE2

   DataFire RAS B4STU Family of Adapters:

      DataFire RAS B4U
      DataFire RAS B4ST

   DataFire DSP CompactPCI Family of Adapters:

      DataFire DSP 24 PT1 CompactPCI
      DataFire DSP 48 PT2 CompactPCI
      DataFire DSP 30 PE1 CompactPCI
      DataFire DSP 60 PE2 CompactPCI

   AccelePort RAS Family of Adapters:

      AccelePort RAS 4
      AccelePort RAS 8

   DataFire SYNC 2000 Family of Adapters:

      DataFire SYNC 2000 2P PCI
      DataFire SYNC 2000 2P+ PCI
      DataFire SYNC 2000 4P PCI
      DataFire SYNC 2000 4P+ PCI

      DataFire SYNC 2000 2P CompactPCI
      DataFire SYNC 2000 2P+ CompactPCI
      DataFire SYNC 2000 4P CompactPCI
      DataFire SYNC 2000 4P+ CompactPCI

   DataFire SYNC/570 Family of Adapters:

      DataFire SYNC/570-ISA 2P EIA232
      DataFire SYNC/570i-ISA 2P EIA232
      DataFire SYNC/570i-ISA 2P X.21
      DataFire SYNC/570i-ISA 2P V.35
      DataFire SYNC/570i-ISA 4P EIA232
      DataFire SYNC/570i-ISA 4P V.35
      DataFire SYNC/570i-PCI 2P UIB
      DataFire SYNC/570i-PCI 4P UIB
      DataFire SYNC/570i-56-ISA EIA232 RJ45
      DataFire SYNC/570i-56-ISA V.35 RJ45


KNOWN LIMITATIONS

   Installation/User Interface:

      Within the wizard mode, if invalid input has been entered and
      back button is pressed, an error message might appear indicating
      that the input is invalid. Valid input needs to be entered
      to be able to go back.

   PortAssist Viewer:

      The PortAssist Viewer shows a Line Speed and Configured Baud
      Rate of zero for the SYNC/570 if the link is externally clocked.
      If the link is internally clocked both values show the
      Configured Baud Rate. The SYNC/570 does not calculate the Line
      Speed.

      PortAssist Viewer shows a protocol of SDLC for QLLC SNA links.

      Use the raw data for problem diagnosis.

   RAS Adapters:

      On Channelized T1 Wink Start Trunks without dial tone super-
      vision, modems must be initialized with ATX3 for dial out.

      When configuring dial-up modem service for a line, all modems on
      the line should be configured since incoming calls may be
      assigned to any channel.

      On ISDN Trunks, the following rules are applied to modem dial strings:
      1. A comma (delay) in the first or second position is allowed.
      2. Then the first non-numeric character terminates the dial string
         (e.g. 9,12345678 is a valid dial string and 9,1,234-5678 is not).

   SYNC Adapters:

      For PPP links, both sides of a connection must disconnect before
      they can be reconnected.

      When using the SDLC interface, the maximum BTU (Basic
      Transmission Unit) is limited to 521 bytes. This is a known
      limitation of the IBM SDLC link service provided in SNA Server.
      See the Microsoft SNA article, "Maximum BTU Limit for Dumb
      SDLC Interface" for more information.


HISTORY

   Version 4.0.228.0 (L Release)

      BUG FIXES

        Fixed: DataFire Sync configuration dialog for X.25 does not show up. (#8068)
        Fixed: WanLinks driver doesn't remove keys from SERIALCOMM when uninstalled (#8412)
        Fixed: The DigiAsyn.sys driver is hanging in an endless loop (#7656)
        Fixed: Parity error detection failure with AccelePort Xp (#7542)
        Fixed: Microsoft FAX does not work with AccelePort Xp (#5702)
        Fixed: Unable to print with AccelePort Xp (#5081)
        Fixed: Multiple issues with E1/R2 parameter configuration (#7956, #7897)
        Fixed: The DigiAsyn.sys driver doesn't handle zero length read requests correctly.
        Fixed: Some timed-out writes are being inadvertently completed with STATUS_CANCELLED
        Fixed: Write timeout does not work when Write Complete When Sent option is enabled

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

   Version 4.0.217.0 (L3P)

      BUG FIXES

        Fixed: Caller DID option within Windows 2000 server is not working (#5576)
               Note: Fixed for AccelePort Xp only. Fixed for Windows NT 4.0 too.
        Fixed: E1/R2 GroupB and backward signalling range incorrect (#5653)
        Fixed: Add Channel Mapping option for DataFire RAS24/48/30/60 CT1 and PRI (#7380)
        Fixed: Driver does not start when installing L2P from scratch (#7582)
        Fixed: Ntperf reports same throughput on AccelePort Xp port at these baud rates
               - 1200 2400 4800 9600 19200 (7570)
        Fixed: AccelePort Xp fails the sndrcv test application (#7354)
        Fixed: Throughput problems with AccelePort Xp at 921kbps on Windows NT 4.0 (#5173)

   Version 4.0.214.0 (L2P)

      BUG FIXES

        Fixed problem establishing a fax connection (#7220,#5702)
        Fixed serial printing errors (#7493)
        RasAudio.exe was missing from the build (#7234)
        Fixed DigiInf.dll load issue (#7231)
        Changed Sync2000 PLX9080 setup to initialize in PCI 2.1 mode.
	    Problem with modem country setting for E1/T1 cards (#5073 & #6376)
	    Port Assist Viewer doesn't display RAS30/60 boards in E1R2 mode (#5071)
	    Port Assist Viewer doesn't show ISDN layer 3 status (#3976)
	    Port Assist Viewer faults when clearing statistics (#2495)

   Version 4.0.210.0 (L1P)

      This version was not released to the public.
