                   Release Notes PN 93000342_G

                    Digi RAS and Sync Drivers
                           Version 3.5

                         Windows NT 4.0
                    Service Pack 4 or greater

                           40001974_G

                        24 February 2000


INTRODUCTION

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

SUPPORTED PRODUCTS

   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

ENHANCEMENTS

   CompactPCI Adapter Support.

   New SYNC 2000 V.11 and V.35 Cable ID recognition.

   Improved performance for Frame Relay, X.25 and FRF.9 compression.

   Support for Cisco proprietary encapsulation of IP over Frame Relay.
      Cisco routers have multiple encapsulation schemes for IP on
      Frame Relay, this mode is the default.

   Improved modem support for RAS products.

   V.23 half-duplex mode can now be set and used via AT+MS=4


BUG FIXES

   This release includes all bug fixes from any previous version of driver
      software release for the supported adapters.

   Modem support maintenance fixes for RAS products.
      Fixed bugs in operation of the AT command set
      Fixed bugs in the generation of digital messages
         that contain capability information (such as negotiating
         positions in FAX and v.8bis.
      Fixed bugs in the generation of digital FAX image data.

   Several fixes to ISDN data handling.
   
   Some fixes for management informational ioctls.


KNOWN LIMITATIONS

   Operating System Support:

      This release no longer supports Windows NT 3.XX.

   Installation/User Interface:

      Within the wizard mode, if invalid input has been entered and back
         button is pressed, an error message may appear indicating that
         the input is invalid.  A 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 will show 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 supervision,
         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:
          a) A comma (delay) in the first or second position is allowed.
          b) 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).


UPGRADING

   If you have a previous version of the driver installed for any supported
   adapters, an "update" is required to install this new driver.

      1. Select the Network Control Panel Applet.
      2. Select the Adapter tab.
      3. Select one of the supported installed adapters.  Note: updating any
         supported adapter automatically updates all installed adapters.
      4. Click the Update button.
      5. Enter the appropriate install directory (e.g. D:\i368 for Intel)


HISTORY

   V3.4

   ENHANCEMENTS

      PPP protocol support for the Sync570 adapters.

      Support for IBM Comm Server NT v6.0 for the Sync570 adapters.

      Alpha processor support for all supported adapters.

      Windows NT 3.51 support for DataFire RAS and AccelePort RAS
         adapters.

      PortAssist Communication Agent service is installed providing
         communication with PortAssist Manager.  This agent uses UDP port
         2362 by default, but may be configured for a different port on
         the Services tab of the Network Control Panel.

   BUG FIXES

      This release includes all bug fixes from any previous version of driver
         software release for the supported adapters.

      Various minor user interface bugs fixed.
