KEYKING NF4027P, User Manual

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NF4027P Facial recognition user manual V1.00
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
If other adapters are used, such as 9V, 1A, the voltage is too low and the current is too
small, which will cause the device to restart repeatedly.

The cable used should not be too thin (such as a thin wire). It is recommended to connect
multiple strands of the same cable or use a thick copper core cable to ensure a
voltage >11V.
note：If the network cable is used, the extension cable uses 4 strands of wire
to make the positive electrode and 4 strands to make the negative electrode.

If you are not sure how to extend it, please contact the supplier to replace the “Dedicated
Power Extension Cable”.