User Guide

AXIS 2490 User’s Manual Updating the Software
31
Appendix C - Updating the Software
The AXIS 2490 software is stored in Flash memory. This memory is provided by a silicon
chip that, just like any other ROM device, retains data content even after power is removed.
Flash memory is unique because it allows its data to be erased and re-written. This means
you can install software updates for your AXIS 2490 as they become available - without
having to replace any parts. New software can be simply loaded into the AXIS 2490 over
the network.
Obtaining Updated Software
The latest version of the AXIS 2490 software is available free of charge from Axis or from
your local distributor. You can obtain this software over the Internet from www.axis.com.
Updating the Software
The AXIS 2490 Flash memory is updated over the network using FTP. See the detailed
instructions supplied with each new software release.
Important!
• Always read the upgrade instructions available with each new release, prior to upgrading your soft-
ware.
• Downloading normally takes between 30 seconds and 10 minutes, although it can take longer. After
starting the download, you should always
wait at least 20 minutes before power-cycling the AXIS
2490 - even if you suspect the download procedure has failed.
• In controlled environments, flash memory upgrades provide a very safe method of updating the
software. However, flash products can become damaged if the upgrade operation is not performed
correctly. Your dealer reserves the right to charge for any repair attributable to faulty upgrading by
the user.