Xerus Firmware
Release Notes
Version: Xerus 4.1.1 / Build 49961 / Release Notes, Version 1
Release Status: General Availability (GA)
Date: October 20, 2023

Release Overview
Xerus 4.1.1 Firmware is a General Availability (GA) Release for applicable Xerus-based product groups. This release
may include performance and productivity improvements, support for new products and accessories, new featuresand enhancements, bug fixes, and general fixes for specific model families.

Note: Due to an issue found in recently released Xerus 4.0.x firmware updates, we strongly recommend
upgrading to release 4.1.1 Build 49961. If you need assistance, please contact your regional Raritan Supportteam.

Applicability
This firmware release applies to the following Xerus-based product brands and models.

Product GroupModel

Rack PDUs

PX3, PX2, PXC, PXO

Smart Rack Controller

SRC

Branch Circuit Monitors

BCM2

Transfer Switch

PX3TS

Access Control

SmartLock™

Sensors

DX2 SmartSensors™

Asset Management

AMS21

General Guidelines for this Release
This release may not support some custom-engineered models. Please check the Support & Compatibility section
below. Or contact your regional Raritan Support team if you are unsure of the model number of your unit―it istypically viewable from the GUI’s Device Information page and is also printed on a label located on the device.

Note: Do NOT upgrade ANY other Raritan model(s) to Xerus 4.1.1 Firmware (other than what is listed in theApplicability table above) because the unit may either not be compatible with Xerus Firmware or may have been
built after this release entered our System Tests and installing it may result in the unit becoming non-functional.
Note: Do NOT downgrade your new Xerus-based product(s) to any prior Xerus Firmware release. Due to significant
internal enhancements in Xerus 4.1.1, a downgrade from Release 4.1.1 Build 49961 to ANY prior firmware release isNOT SUPPORTED. Please contact your regional Raritan Support team with any questions.

Release Highlights
Bug Fixes
Issue ID

Description

82726

Fixed USB cascading network failure issue after upgrading to release 4.1.0

Please consult the appropriate User Guide for more information on these firmware features at raritan.com/support.

Support & Compatibility with Xerus 4.1.1
Except for some recent Engineered to Order (ETO) models, applicable units/models that are Xerus-based can beupgraded to this firmware release (see Applicability table above).

Upgrade Matrix (Path for Upgrades)
This firmware release is intended for factory shipments and firmware upgrades on the units/models stated in theApplicability table above.

Note: Due to file system changes in Xerus 4.0.x, the following upgrade paths must be followed, or the Xerus-based
device may become inoperable and require manual recovery.

Firmware Version

Upgrade Steps

3.5.x, 3.6.x» 4.1.1

4.0.x» 4.1.12

Note: Due to an issue found in recently released Xerus 4.0.x firmware updates, we strongly recommend that you
upgrade to release 4.1.1 Build 49961. If you need assistance, please contact your regional Raritan Support team.

Downloads
The following supplemental files can be downloaded at raritan.com/support:•Product Documentation and User Guides•

SNMP MIBs•

Related Tools and Drivers•

JSON-RPC SDK•

Redfish® Documentation

Historical firmware version downloads can be found on raritan.com/support.

Release Package Details
The Xerus 4.1.1 Firmware is a General Availability release package and will be posted on the Raritan support website
at raritan.com/support.

Xerus 4.1.1 Package•“Xerus_ReleaseNotes_4.1.1.pdf” (this file)•A firmware release (binary): pdu-px2-040101-49961.bin

General Upgrade Instructions (stand-alone upgrade from the browser-based user interface)•Enable JavaScript in your browser before logging into the unit to start the upgrade process.

•Follow the instructions in the proper device User Guide. Please read the entire upgrade instructions before
starting an upgrade.

If you have any questions or cannot follow the instructions in the User Guide, please STOP and contact Raritan
Support for further instructions.

Contact Us
Go to raritan.com/support for contact options.

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