Nitgen NAC-3000, Руководство по установке

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2. Installation Environment
Please keep in mind the following conditions when you install the product.
You might need to obtain the user's consent if necessary.
①
This product is originally designed to install indoors. If you have to
install it outdoors, however, do not expose the terminal to direct
sunlight, snow or rain.
②
The connection cables should not be exposed outside, and it is highly
recommended to bury them underground. If that is impossible, you
must obtain the user's consent before installation.
③
Power supply should begin after all connections are completed. Do
not disconnect the lines or make any additional connections while the
power is supplied.
④
If you install the product as an access controller at a proper height for
the users and in a near place that facilitates control of the entrance,
you can use it more efficiently.
⑤
The power requirement for the system is AC 100~240V, 50/60Hz.