TP-Link TL-SF1016DS User Manual page 8

Grounding Terminal: TL-SF1016 already comes with Lightning Protection
Mechanism. You can also ground the Switch through the PE (Protecting Earth)
cable of AC cord or with Ground Cable. For detail information, please refer to
section 3.3 Connect to Ground.
AC Power Socket: Connect the female connector of the power cord here, and
the male connector to the AC power outlet. Please make sure the voltage of
the power supply meets the requirement of the input voltage.
Note:
Because of the difference among the mode of switch, some switches don't include
the Grounding Terminal, such as TL-SF1048 and a few of TL-SF1016 and TL-
SF1024 switches.
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