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Updating Firmware
Over time, new versions of MultiAccess firmware will be issued. When these newer versions become
available, you will want to secure the firmware files (typically by downloading them from the Multi- Tech
web site) and install them on the MultiAccess.
There are two parts to a full firmware update:
(a) updating POTS Modem x firmware (with file name of the form dwqg<x><y>.hex; where x is a
number and y is a letter),
(b) updating MultiAccess firmware (with file name of the form MA220-<x>-<y>.bin,
MA420-<x>-<y>.bin or MA820-<x><y>.bin ).
NOTE: You must have the update files on your computer before beginning this procedure. The
latest version of these files will be available on the Multi-Tech web site. Put them in a
directory on a computer connected to the network on which the MultiAccess unit is
running.
NOTE: Updating the MultiAccess unit will take it out of operation for a few minutes (allow 10
minutes for each update if you already have the new firmware in a directory on the host
computer). Do the update at a time that is not critical to your organization's usage of the
MultiAccess service.
To update firmware, follow the steps shown below.
MultiAccess Modem Firmware Update
1. Bring up the Device Manager software main screen. In the Device column, identify the
MultiAccess unit on which the update is to be done. Be sure that the Status of that MultiAccess
unit is idle before continuing. (You cannot update the MultiAccess while it is handling a call.)
Select the MultiAccess unit and right-click on it. In the menu that appears, select Update.
2. The Update MultiAccess ACS at N.N.N.N screen will appear. The current firmware versions for
the MultiAccess's POTS Modems will be listed in the main window.
Multi-Tech Systems, Inc. MultiAccess User Guide
Appendix A – Device Manager Utility
41
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