Inepro IP Card Reader Work Instruction page 16

4) To supply power use one of the following options:
a) Connect the power adaptor to the black socket next to the
network connectors.
b) Connect a Power over Ethernet (PoE) network cable to the
PoE connector on the board.
The Power over Ethernet option requires the implementation of
Power over Ethernet in your network, otherwise no power can be
supplied.
The power adapter was supplied together with the Inepro IP Card
Reader.
11 - IP Card Reader - Upgrade