D-Link DCS-6112 Guía De Instalación Rápida página 6

General Connection (without PoE)
Connect the network camera to a switch or router via an Ethernet cable.
Connect the supplied power cable from the camera to a power outlet.
Connection with a PoE Switch
If using a PoE switch, connect the network camera to the switch via an Ethernet cable,
which will provide both power and data transmission over a single cable.
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D-Link DCS-6112/DCS-6113 Quick Install Guide