LEGRAND Raritan PX3TS User Manual page 496

Chapter 7: Using the Web Interface
476
Upgrade Guidelines for Existing Cascading Chains
You must obey the following guidelines when upgrading a chain. Otherwise, a
networking issue occurs.
•
Firmware version 3.3.10 or later is NOT compatible with pre-3.3.10
firmware versions in terms of the cascading feature so all Raritan devices
in the cascading chain must run version 3.3.10 or later.
Alternative: You can also choose to have the USB-cascading chain
comprising Raritan devices run any pre-3.3.10 firmware. The disadvantage
is that you will not benefit from the latest software enhancements and
features.
•
To upgrade an existing Raritan USB-cascading chain from a firmware
version older than 3.3.10, you must start from the last slave device and so
on until the master device. See
Cascading Chain (on page 476).
Upgrade Sequence in an Existing Cascading Chain
Depending on the firmware version(s) of your cascading chain, there may or
may not be limitations for the firmware upgrade sequence in the chain.
Upgrade from "pre-3.3.10" to 3.3.10 or post-3.3.10:
You must follow the firmware upgrade sequence below to upgrade a
cascading chain from a firmware version older than 3.3.10 to version 3.3.10
or later. If you do not follow this upgrade sequence, you will not be able to
access some cascaded devices over the Internet.
▪
The upgrade must start from the last slave device (S), then the second
to last, the third to last, and so on until the master device (M).
Red numbers below represent the appropriate upgrade sequence. 'N'
is the final one to upgrade.
▪
You must upgrade ALL devices in the chain to 3.3.10 or later. If you
upgrade only some devices in the chain, networking issues occur on
some cascaded devices.
Upgrade Sequence in an Existing