Inepro IP Card Reader, Technical Manual

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Network Connections
12
Network Connections
Switch
On the IP controller board there are two network connectors. The IP
controller board can be used as a switch because of the Ethernet
switch chip on board and can be placed between a wall outlet and an
existing Ethernet device (like a printer or multifunctional device).
Power over Ethernet (PoE)
If the power supply adapter is used both connectors can be used
normally to connect to the wall outlet and the Ethernet device. But
the IP controller board can also be supplied with energy by a Power
over Ethernet switch. In this case the connection from the PoE
switch must be made to the "PoE" Ethernet connector, the Ethernet
device can be connected to the "no PoE" connector.
If the cables are connected falsely (ie. the PoE switch is
connected to the "no PoE" Ethernet connector), nothing will be
damaged. In that case the IP controller won't have energy and will
not operate. Switching the Ethernet cable to the "PoE" connector
will activate the IP controller board.