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                         Release Notes  PN 93000184_G

                          Digi RealPort Device Driver
                                 Version 1.7.0

                           Solaris 2.5, 2.6, and 2.7
                              for SPARC and Intel

                        Software Package PN 75000184_G
                        Software Manual  PN 92000184_B

                                   01/10/00

CONTENTS
Section  Description
1        Introduction
2        Supported Products
3        Enhancements
4        Bug Fixes
5        Known Limitations
6        PortServer Setup
7        History

1. INTRODUCTION

    The Digi Solaris RealPort driver makes the ports on a Digi PortServer
    appear as though they are local tty devices directly attached to the
    computer.

    When the system boots, one ncxd daemon is spawned for each PortServer.
    Each daemon makes a single TCP/IP connection to its associated PortServer
    and sends all asynchronous serial data on this single connection.

    PortServer ports can be accessed any time they are configured for RealPort
    operations and are not otherwise in use.

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

2. SUPPORTED PRODUCTS

    PortServer
    PortServer II

3. ENHANCEMENTS

    Changed format of the release notes.

4. BUG FIXES

    A problem with the driver holding a lock while removing the queue's
    service routines from the service queue has been resolved.  The symptom
    of this error was a fairly random system crash that resulted on multi-
    processor systems.

5. KNOWN LIMITATIONS

    If a PortServer loses power it may be necessary to wait for up to 2 minutes
    before communication is re-established with that PortServer.  


6. PORTSERVER SETUP

    The Digi PortServers are full featured terminal and communication servers
    whose configuration is detailed in the PortServer Manual.  We note here
    the minimum needed for RealPort operation.

    First you must login as root on the PortServer.  You can connect a 9600
    baud 8N1 terminal to port 1, or (if you obtained an IP address through
    RARP or BOOTP) you can telnet to the box.  The factory default root
    password is "dbps".

    Basic IP parameters must be set up before the PortServer will operate on
    the network.  If you have not done this with RARP or BOOTP, you must do
    it from the command line.  Substitute your own IP address, net mask and
    (optionally) gateway address into the following PortServer command:

        set config ip=192.168.0.1 submask=255.255.255.0 gateway=192.168.0.254

    The RealPort driver works best if you configure associated PortServer
    devices as printers.  It works VERY POORLY if the devices are configured
    as terminals, for example.  The following command sets up ports 1-16 as
    device type prn (printer).

        set port range=1-16 dev=prn

    If 8-pin RJ-45 plugs are used in the PortServer, the altpin option
    should be selected to make DCD available on one of the inner pins.
    The following command sets altpin on 16 ports.

        set flow range=1-16 altpin=on

    You can check the current configuration with:

        set config
        set flow range=1-16
        set port range=1-16

7. HISTORY

    Version 3.2.0 - July 29, 1999
      Bug Fixes
        Fixed a problem where the driver incorrectly sends a break while
        waiting for output data to drain.  

        Fixed a system crash which occurs when a modem hangup signal is
        received.

        Fixed a problem where data was lost at the end of a printout.

        Removed incorrect assert() message that triggered occasionally at
        some sites.

      Enhancements
        Increased the size of transparent print packets sent from the host
        system to the Portserver.

    Version 3.1.0 - May 7, 1999
      Enhancements
        Redesigned the driver to improve stability and add new features.