1. 3C589X.zip Driver
2. README.TXT File Contents

README.TXT Driver File Contents (3C589X.zip)

3Com (R) Corporation LAN Installation Disk
for the 3Com Megahertz LAN PC Card Family
Release Notes Information

Please read this file before installing the LAN PC Card.

This file is divided into three sections:
     General Information  - Read for all network operating systems
     Known Compatibility Issues
     Frequently Asked Questions
     

               Important General Information 
               =============================

This PC Card complies with the Federal 
Communications Commission 47 CFR part 15, subpart B
15.107 e Class B Conducted Limits and 15.109 g Class B 
Radiated Emmissions Limits, not with the statements 
included in the User Guide.

This PC Card runs with the U.S version of the Windows CE driver 
as stated in the User Guide. International versions of 
Windows CE have not been tested yet with this PC Card and no
support for international versions is currently available.
Check the support section of the 3Com.com web site for 
updates.

Full-Duplex Operation
The networks drivers support full-duplex operation (that is,
sending and receiving data simultaneously).

WARNING: You MUST be connected to a switched full-duplex 
Ethernet hub to use this feature
(this feature disables collision detection).  
To enable this feature, see the user guide.

Make sure to use the latest BIOS available for your PC. 
Contact the PC manufacturer for more information.

Suspend and Resume Functionality 
If your notebook shuts down power to the PC Card slots 
during suspend and resume, you may lose network connectivity 
or your notebook may be left in an unknown state.
You may need an updated BIOS. Contact your notebook vendor for
more information.

DOS Diagnostics
NOTE: If you are having problems running the DOS diagnostics
on any PC, try loading DOS high, as described below.

               Problems and Solutions 
               ==========================

Windows CE 
To remove the Windows CE 2.0 driver, follow these steps:
1. Remove the PC Card.
2. Open the Control Panel and double-click Remove Programs.
3. Select the PC Card and click Remove to remove it.
4. Reboot the hand held PC.


Dell XPi CD PC and DOS Diagnostics
To use the DOS Diagnostics you need to load DOS high. 
For example, include the following statement in the
CONFIG.SYS file. 

DOS=HIGH,UMB


NEC 6230 PC
To use the DOS Diagnostics you need to load DOS high. 
For example, include the following statement in the
CONFIG.SYS file. 

DOS=HIGH,UMB

Also, use interrupt 11 on this PC.

 
Digital HiNote VP5100
Insert this LAN PC Card in the bottom PC Card slot for this PC.

Compaq 7350 MT PC
Do not use IRQ 11 on this PC.

Dell Inspiron 3200 PC
The DOS Diagnostics do not work in this notebook, but the 
PC Card works fine.

Sharp 9300D PC
The DOS Diagnostics do not work in this notebook but the
PC Card works fine.

NEC 750C
To browse the Internet using this hand held PC, 
make sure that the serial link is disconnected.

When connecting to a 10Base2 network with the 
operating system already running, 
it may be necessary to connect the 
cables and then reinitialize the drivers 
by rebooting.





             Frequently Asked Questions 
               ==========================

Is the PC Card FCC B, CISPR B EMI, C-tick EMI,
and VCCI 2 EMI certified?
Yes, the LAN PC Card has passed these certification tests.

Which PC Card slot is best for my LAN PC Card?
The LAN PC Card is designed to work in any PC Card slot.
In some DOS environments controllers may require Card Services.

Does the LAN PC Card support full duplex?
Yes, the LAN PC Card supports full duplex.

What should I do if the LAN PC Card installs as a
Unknown Device under Other Devices in the Device Manager?

Follow these steps:

1. In the Device Manager, double-click Other Devices.

2. Click "unknown device".

3. Click Remove.

4. Restart your notebook.


What should I do if a yellow exclamation
point appears next to the 3Com Megahertz LAN PC Card name?

1. In the Device Manager, double-click Other Devices.

2. Click Unknown Device or the duplicate
   3Com Megahertz LAN PC Card entry.

3. Click Remove.

4. Restart your notebook.


What is DynamicAccess® software?
DynamicAccess software brings intelligence
to the end systems to provide improved
network performance and control. You can
download the latest DynamicAccess
software from the 3Com Web site: www.3com.com.


What is Fast IP?
Fast IP is software that improves performance on switched networks.
Fast IP allows end systems (notebooks and servers) to discover
switched communication paths. By creating switched short cuts,
Fast IP allows end stations to bypass the router and transfer
data across wire-speed switched paths. Fast IP is part of
3Com’s DynamicAccess software.


What are the notebook and network requirements to run
Fast IP?
Client requirements:
Notebook running Windows 98 or 95, Windows NT (versions 4 or 3.51),
3Com Megahertz LAN PC Card, and the TCP/IP stack.

Network requirements:
Switched path between stations and single broadcast domain.


What are the network configuration requirements for Fast IP?

Fast IP is designed to bypass the router, particularly
where the router is a bottleneck, as well as to leverage
the switched infrastructure. For Fast IP to create short
cuts around routers, there must be a switched
path between source and destination.


What is the performance gain when using Fast IP?

Fast IP bypasses the router to provide increased performance
in switched networks even if there are just a small
number of network nodes using Fast IP.
The performance gain obtained when deploying Fast IP
is directly related to traffic load on
the backbone router. The more traffic is pumped to it,
the bigger the latency and response
time and the higher the performance gain. Internal
tests show performance increases in
the order of 600% when routers are loaded at 70 to 75%.

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