Allied Telesis AT-MCF2300 - Manual (Page 137)

AT-MCF2000 and AT-MCF2300 Installation Guide
Section II: Installation 137
Note
If the media converter chassis has two power supplies, you can
protect it from a power circuit failure by connecting the power cords
to outlets on different circuits.
This completes the installation procedure. For instructions on how to verify
the operations of the modules in the chassis, refer to the next chapter.