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Can an Ethernet model TeSys T Motor Management System be upgraded from pre-2.7 firmware to 2.7?

Issue:
Can an Ethernet model TeSys T Motor Management System be upgraded from pre-2.7 firmware to 2.7?

Product Line:
Protection Components

Environment:
North American Products

Cause:
Customer would like to enable Ethernet IP functionality on their pre-2.7 firmware TeSyS T Motor Management System

Resolution:
Due to technical limitations at the hardware level, it is impossible to upgrade an Ethernet model TeSys T Unit from a lower firmware to 2.7.  Similarly if you roll back the firmware on a 2.7 model you cannot upgrade it back to 2.7.  The only way to obtain the 2.7 firmware on an Ethernet model is to buy it from the factory with that firmware pre-installed.  Schneider Electric does not make firmware 2.7 publicly available for this reason.  
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