User guide

Appendix A – Device Manager Utility
Multi-Tech Systems, Inc. MultiAccess ACS User Guide 32
Updating Firmware
Over time, new versions of MultiAccess ACS firmware will be issued. When these newer versions
become available, you will want to secure the firmware files (typically by downloading them from the
MultiTech web site) and install them on the MultiAccess ACS.
There are two parts to a full firmware update:
(a) Updating POTS Modem 1 firmware (with file name of the form dwqg<x><y>.hex; where x is a
number and y is a letter),
(b) Updating MultiAccess ACS firmware (with file name of the form MA100-<x>-<yz>.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 MultiTech web site. Put them in a
directory on a computer connected to the network on which the MultiAccess ACS unit is
running.
NOTE: Updating the MultiAccess ACS 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 ACS service.
To update firmware, follow the steps shown below.
MultiAccess ACS Modem Firmware Update
1. Bring up the Device Manager Software main screen. In the Device column, identify the
MultiAccess ACS unit on which the update is to be done. Be sure that the Status of that
MultiAccess ACS unit is idle before continuning. (You cannot update the MultiAccess ACS while
it is handling a call). Select that MultiAccess ACS unit and right-click on it. In the menu that
appears, select Update.
2. The Update MultiAccess ACS N.N.N.N screen will appear. The current firmware versions for
the MultiAccess ACS’s POTS Modem 1 will be listed in the main window.