NEC US40a, Руководство пользователя

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About US40a 9
Wireless Antennas
The wireless antennas send out signals from wireless devices installed in US40a and receive signals
sent from external devices.
These antennas cannot be viewed from the outside of US40a.
NOTE:
Make the LCD panel of US40a remain opened. This can avoid
any obstacles against the antennas before wireless connection is
established.
IMPORTANT:
The wireless devices installed in US40a are designed
so that their frequencies may not exceed the limit of the exposure to the
radio frequency recommended by the international guideline (ICNIRP).
The SAR (specific absorption rate), the rate at which the radio
frequency energy is absorbed into body issues, largely depends on the
distance between the origin of radio frequency (antenna) and a human
body.
The wireless devices meet the international guideline about the
exposure of radiated radio frequency only when the distance between
the antenna and a human body is at least 2 to 3 cm.
USB2.0 Ports
Three USB ports are located on US40a to allow peripherals conforming to the USB standard (e.g.
printers and DVD drives) to be connected to US40a.
IMPORTANT:
The USB ports always supply 5VDC power to
external USB devices connected to the ports while the system power is
off. Accordingly, the USB devices can always be charged without the
system power. In order to prevent the battery power from being
discharged fully in the system power-off status, disconnect external
USB devices from the USB ports if they are not used.