User`s guide
®
USER’S GUIDE
AUTOMATIC TRANSFER SWITCH
164
Upgrading Firmware
Benefits of upgrading firmware
Upgrading the firmware on the Automatic Transfer Switch has the following
benefits:
• New firmware has 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 Automatic Transfer Switches support the same features in the
same manner.
Firmware files (Automatic Transfer Switch)
A firmware version consists of two modules: An APC Operating System
(AOS) module and an application module.
The APC Operating System (AOS) and application module files used with
the Automatic Transfer Switch share the same basic format:
apc_hw0x_type_version.bin
• apc: Indicates that this is an APC file.
• hw0x: Identifies the version of the Automatic Transfer Switch that will
run this binary file.
• type: Identifies whether the file is for the APC Operating System
(AOS) or the application module (APP) for the Automatic Transfer
Switch.
• version: The version number of the application file. For example, a
code of 261 would indicate version 2.6.1.
• bin: Indicates that this is a binary file.