Release Notes PN 93000399_M
                                for the
                           82000716_J firmware

                            September 7, 2004

NOTE: When upgrading to a new version of firmware for your Device Server,
please ensure that you are running the most recent POST (Post-On-Self-Test)
code as well. For the 82000716_J firmware release this would be the
82000679_C1 POST. Instructions for upgrading the POST are in 
ADDITIONAL INFORMATION section.


INTRODUCTION

    This is a production release of the firmware (EOS) for the 
    Digi One RealPort and PortServer TS device server product family.
 

SUPPORTED PRODUCTS

    Digi One Realport
    PortServer TS 2
    PortServer TS 4


ENHANCEMENTS

    - Enabled retry support in TFTP client for config backup/restore
    

BUG-FIXES

    - Fixed Altpin issue
    - Fixed situation where SNMP MIB walk failed
    - Fixed reboot issue with cpconf
    - Fixed situation where connectsec=off was ignored
    - Fixed DTR flow control issue affcet large zmodem file transfers
    - Fixed auto-connect socket reopen/RST problem in raw mode
    - Added TFTP client retry config backup and restore


KNOWN LIMITATIONS

    - Latency optimization mode is not suited for high bandwidth applications.
    - UDP Serial 'rmax' setting is now limited to 1-32767 to prevent a
      performance penalty should a user define all 4 ports to the old 
      maximum of 65535. If yoy  need UDP Serial buffers larger than 
      32KB you may either have to use the older release "H" firmware or switch
      to device from the PortServer TS MEI product family.
  

ADDITIONAL INFORMATION 

A TFTP server will be required for the following steps:

Upgrading the POST and EOS
--------------------------

When upgrading from a firmware release prior to 82000716_B, the POST code
must be upgraded first.  If you are unsure which version of POST you are 
running, upgrade to the most recent version. The most recent POST code, 
82000679_C1, is located at http://www.digi.com/support. Enter the PART NUMBER
(marked as PN:) from the bottom of your product.

You can upgrade from the Web Browser of the product, or
this is can be done from the Telnet/serial command line with:

  boot load-post=<tftpserver>:82000679C1.bin

A reset is necessary to allow the new POST to run.

  boot action=reset

Upgrade the EOS with the command:

  boot load=<tftpserver>:82000716_J.bin

The unit should be reset after the EOS upgrade as well.


HISTORY

2003-07-15: 82000716_H (use POST 82000679_C1)

2002-08-16: 82000716_F (use POST 82000679_C1)
    - Improved latency in new latency optimization mode
    - UDP to serial port connectivity
    - Secure access feature to disable insecure connection methods
    - RTS Toggle
    - RFC 2217, Telnet extension for serial port control
    - Configurable ethernet duplex and speed settings
    - Serial mark and space parity
    - cpconf support in web interface