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INSTALLATION OF THE WINDOWS NT 4.0 and NT 3.51 DRIVER 
(4000821R.exe for Intel and Alpha) for Async Products 
(4001673R.exe for MIPS and PPC) for Async Products
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BEFORE INSTALLING THE NEW DRIVER
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Make sure that before you add this new driver
(if one is installed) that you go to the
ControlPanel/Network and remove the Digi board
driver (in the `Installed Adapters' window) that 
is currently installed and reboot.
Failure to do so may cause complications.

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INSTALLING THE NEW DRIVER
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1 - Make a new directory on the hard drive of the 
machine with the Digi board in it, (eg c:\digi)
If the system is Intel or Alpha based, place the
4000821R.exe file (for MIPS and PPC systems, use
the 4001673R.exe file) into the new directory.

2 - Execute the file by typing its name in a DOS
window or double-clicking on the file within
the FileManager. The file will self-extract.  A
directory will be created for your processor type
(i.e., I386 (Intel), ALPHA, MIPS, and PPC).  Select
the appropriate directory for the type of system
you have. 

3 - Open Control Panel/Network/Add Adapter 
and when you see the list of adapters, scroll to 
the bottom of the list and select `Other', (For
Windows NT 4.0 you would choose the `Adapter' tab
and click on the `Have Disk' button). Then enter 
the path to the I386 directory (or appropriate
processor directory) that the file made 
when it extracted,(eg c:\digi\I386). You will now 
see a list of Digi drivers. Select the appropriate 
driver and follow the prompts. Once you have 
completed the driver installation and rebooted, 
the Digi board is now ready for use.

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TESTING YOUR NEWLY INSTALLED DIGI BOARD
**************************************************
One of the simplest ways to insure your 
Digi board is working, is to start with 
a basic test. 
Make sure all other communication programs,
(including RAS(Remote Access Service),if 
opened) are closed. If your using Windows 
NT 4.0 use the tty program with the following 
test. The tty program, called "nt_tty.exe", can 
be downloaded from our BBS or FTP server, 
(refer to the end of this document).

USING A MODEM TO TEST
1 - Open the "Terminal" program (found in the 
"Accessories" group) and choose the "Settings" 
pull-down, then "Communications". 
2 - Select the com port representing the first 
port on the Digi board(usually com3).Remember
that "Terminal" can only access com1-com9.
3 - Set the Baud rate to 9600 and click on the
"ok" button.
4 - Now you'll be at a terminal prompt where you
can type "ATZ" ,(without the quotes). You should 
now see an "OK" response from the modem.

If you can't see what you're typing it may be
because your echo is turned off. Hit "Return"
and type "ate1" (without quotes) and now you
should see what you're typing and receive an "OK"
response from the modem.

If you still don't see what you're typing, check
all cabling for loose connections. 
When using the Digi "Octa" or "Quad" cable, make
sure the end of the cable attached to the Digi
card is seated properly. Try loosening the two
thumbscrews and wiggling the cable until you 
feel a slight click, and then tighten the 
thumbscrews,(finger tighten only!).
Try the test again.

USING THE DIGI LOOPBACK PLUG TO TEST
If you're not using a modem, use the Digi Loopback
plug found in the shipping box and put it on the
first port (P1) on the Digi board.

1 - Open the "Terminal" program (found in the 
"Accessories" group) and choose the "Settings" 
pull-down, then "Communications".
2 - Select the com port representing the first 
port on the Digi board(usually com3).Remember
that "Terminal" can only access com1-com9.
3 - Now you'll be at a terminal prompt. Type 
any string of characters. If you can see what
your typing, your Digi board is working properly. 




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TROUBLESHOOTING TIPS
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The most common cause of all driver failures is
memory conflictions. Make sure that the memory
address (eg D0000) is not being used by another
device. This will cause an error message in NT's
Event Viewer stating such a failure. 

Most of today's computers use Pentium proccessors,
that are slightly enhanced by using the Shadowing
feature in your system's BIOS. This feature is usually 
turned on by default and is the reason for most
memory contention problems that cause the Digi driver
to fail upon load time. Turn this shadowing feature
off or disable the memory range that you're trying to
load the Digi driver at.(If your not sure how to do 
this, contact your computer manufacturer or BIOS 
manufacturer for information on this procedure)

The second most common cause of all driver failures
is an incorrect i/o base address set in the Digi
driver. Make sure that the board's address matches
the drivers address setting. If this setting is 
incorrect, you will get an error in the Event Viewer
stating "wait confirmation failed".


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WHERE CAN YOU GET THE DRIVER? 
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Digi BBS.......................(612)912-4800
Internet(FTP)..................ftp://ftp.dgii.com
Digi Tech Support..............(612)912-3456
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