Amcrest NVR11H Quick Start Manual page 13

Hardware Setup Setting up the cable connections
Then, connect the other end of the Ethernet cable to a PoE port on the NVR.
Note: PoE cameras can either be powered with a PoE connection or with a
standard power adapter (sold separately).
b. For non-PoE NVRs/cameras: Connect the power adapter to the power port
attached to the camera.
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