Power Notes - Planet FNSW-1600S User Manual

3.3 Power notes:

1. The device is a power-required device, it means, it will not
work till it is powered. If your networks should active all the
time, please consider use an UPS (Uninterrupted Power
Supply) for your device. It will prevent you from network data
loss or network downtime.
2.In some area, installing a surge suppression device may also
help to protect your hub from being damaged by unregulated
surge or current to the Switch or the power adapter.
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PLANET NOVASwitch series