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Update of the device software
Download an available update to your computer according to your current device software version. For
updates, http://fiessler.de see Downloads.
On the device you want to update, enable configuration mode. In the device menu, open the Software
Update entry and follow the instructions.
If there are several RAZL-2 CO devices in one network, the side columns are automatically updated by
the main column. In this case, please wait until all side columns have been automatically restarted.
Important: Never turn off the device during an update.