KEYKING NexFace NF4028, Руководство пользователя

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Chapter 2 installation
2.1 Wiring
Reset description: If the two wires are shorted for more than 8 seconds, and the
device will be restored to factory settings.
2.2 Installation steps
1. According to the requirements of the installation, open a 35mm aperture on the
gate, generally in the middle or front side, as shown in the figure,
⊕
is the
recommended opening position.