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108Switched Rack PDU User Guide
File Transfers
How to Upgrade Firmware
Benefits of upgrading firmware
When you upgrade the firmware on the Rack PDU:
• You obtain the latest bug fixes and performance improvements.
• New features become available for immediate use.
Keeping the firmware versions consistent across your network ensures that all Rack PDUs support the
same features in the same manner.
Firmware module files (Rack PDU)
A firmware release has three modules, and they must be upgraded (that is, placed on the Rack PDU) in this
order:
• a boot monitor (bootmon) module
• an American Power Conversion Operating System (AOS) module
• an application module
(Each module contains one or more Cyclical Redundancy Checks (CRCs) to protect its data from corruption).
The boot monitor module, the AOS, and the application file names share the same basic format:
apc_hardware-version_type_firmware-version.bin
• apc: Indicates the context.
•
hardware-version: hw0n where n identifies the hardware version on which you can use this file.
•
type: Identifies which module.
•
version: The version number of the file.
•
bin: Indicates that this is a binary file.
Firmware File Transfer Methods
Note: Upgrade the bootmon module first, then the AOS module, and finally, the application module by
placing them on the Rack PDU in that order.
Obtain the free, latest firmware version from www.apcc.com/tools/download. To upgrade the firmware of one
or more Rack PDUs, use 1 of these 5 methods:
• On a Windows operating system, use the Firmware Upgrade Utility downloaded from the APC Web
site. See “Using the Firmware Upgrade Utility” .
• On any supported operating system, use FTP or SCP to transfer the individual AOS and application
firmware modules. See “Use FTP or SCP to upgrade one Rack PDU” .
• For a Rack PDU that is NOT on your network, use XMODEM through a serial connection to transfer
the individual firmware modules from your computer to the
Rack PDU.
See “Use XMODEM to upgrade one Rack PDU” .
• Use a USB drive to transfer the individual firmware modules from your computer. See “How to
upgrade multiple Rack PDUs” .
• For upgrades to multiple Rack PDUs, see “Upgrading the firmware on multiple Rack PDUs” and
“Using the Firmware Upgrade Utility for multiple upgrades on Windows”.