Overview Software Upgrade

Software upgrade provides a more stable software version and more abundant software features for the user.

Upgraded programs are stored in the storage mediums of the device in the form of files or data blocks. The software modules with different functions cooperate to keep the device in the stable working state and support the hardware features of the device and application services of users.

Users can upgrade software through the TFTP/FTP network transmission mode or the Xmodem transmission mode of the Console port. In upgrading software of different types, users must carefully read the operation steps and notes and cautions described in the manuals related to the software upgrade.

In upgrading software, you usually need to upgrade software of each type. If the software of a type is not updated during the upgrade process, you need not upgrade the software again. Usually, you can restart the device only after the all software versions are upgraded.

The following types of software are available:

• The image program package: Program package with the suffix pck. It contains a group of programs that are required for normal operation of the system, including operating system and application programs.
• The bootloader program: Program with the suffix pck. It is similar to the BIOS program of the PC which is frozen into the ROM of the main board. It is the first to be executed when the system is powered on. The program initializes the basic system, and realizes the functions such as upgrading, downloading, booting, commissioning, and testing. The bootloader program of the main control board and the switching board can be upgraded.
• Package program: The package file with the image and bootloader program, which can upgrade various types of software programs once.