Instant Update Utility
Occasionally, newer versions of the modem's internal software may be
made available to reflect advances in the rapidly-changing ADSL field.
This software will be made available from 3Com and may be downloaded to
your PC using this Dual Link utility. Once the new software is stored
on your PC, use the Manager to update the Dual Link modem
The Instant Update package allows you to automatically obtain software
updates for your modem over the Internet. To install it from your Install
CD, click on Start>Programs>3Com Dual Link Modem >Advanced>Install
Instant Update

This will start the install procedure. Ensure your CD is in your CD-ROM
drive. Then click OK.

You will be asked to accept or choose the destination directory.

And given the opportunity to change the program folder name.

Click Finish to complete the setup of the utility.

There is one last step that you will want to complete in order to have
full control over the Utility. From the Start button, select Start>Programs>Instant
Update>Instant Update Configuration.

This gives you a series of screens that allow you to control the operation
and frequency of the Instant Update. By default, the Instant Update will
check for code updates from the 3Com web site every 30 days.
You may not wish to change the defaults. On the scheduling tab, if you
think there may be an updated file available, you can select Update
Now. Click Close to exit the Instant Update configuration screen.

Once the Instant Update Utility has been installed on your PC, it will
monitor the Internet for updates to the basic operating software (called
a .nac file) for your Dual Link Modem and download an update file when
one is found. This file will be downloaded to your PC and stored in a
folder on your hard drive. By default, the file location is: C:\Program
Files\3Com\Dlcc\Update. You can then download it to your Dual Link
at your convenience.

To retrieve a downloaded .nac file and install it on your Dual Link,
first open your Dual Link Modem Settings Screen.

From the Main page, select System.

Under the category System Maintenance, click on Upgrade Software.

Browse to find the location of the .nac file on your hard drive. By default,
the file is usually stored in C:\Program Files\3Com\Dlcc\Update.
Then click Download Software. After starting the download, remain
on the screen until the download completes (about one minute).
This is not the preferred method, but we've documented it here in case
you need to use it. This procedure requires that you first connect your
Dual Link unit to a Com port on your PC using a DB-9 to DB-9 cable.
Once this is done, click Start>Programs>3Com Dual Link Modem>Advanced>Serial
Download to start the serial download. You will see the following
screen.

You will be asked to input the Com port and baud rate. Once you click
OK, an instruction screen will open up, similar to that shown here.

It will direct you to:
- Turn OFF (unplug) the Dual Link unit.
- Press Return to start the download.
- Turn on the Dual Link unit.
This
will write the new .nac file onto the Dual Link.
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