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Additional information
其他信息 I 其他資訊 I その他の情報 I 추가 정보
Specific Absorption Rate (ICNIRP)
YOUR DEVICE MEETS INTERNATIONAL
GUIDELINES FOR EXPOSURE TO RADIO WAVES.
Your device is a radio transmitter and receiver. It is
designed not to exceed the limits for exposure to
radio waves (radio frequency electromagnetic
fields) recommended by international guidelines.
The guidelines were developed by an independent
scientific organization (ICNIRP) and include a
substantial safety margin designed to assure the
safety of all persons, regardless of age and health.
The radio wave exposure guidelines use a unit of
measurement known as the Specific Absorption
Rate, or SAR. The Europe 10g SAR limit for mobile
devices is 2.0 W/kg. Tests for SAR are conducted
using standard operating positions with the device
transmitting at its highest certified power level in
all tested frequency bands. The highest SAR values
under the ICNIRP guidelines for your device are as
follows:
Maximum body-worn SAR with 0 mm separation
distance: 0.719 W/kg
During use, the actual SAR values for your device
are usually well below the values stated. This is
because, for purposes of system efficiency and to
minimize interference on the network, the
operating power of your mobile device is
automatically decreased when full power is not
needed for the data connection. The lower the
power output of the device, the lower its SAR
value.
If you are interested in further reducing your RF
exposure then you can easily do so by limiting your
usage or simply keeping the device away from the
body.
European Union — compliance with the Radio
Equipment Directive
Hereby, Lenovo (Singapore) Pte. Ltd., declares that
the radio equipment type ThinkPad E490s/S3 is in
compliance with Directive 2014/53/EU.
The full text of the system EU declaration of
conformity and the EU wireless module
declarations are available at the following Internet
addresses:
•
For notebook computers:
https://www.lenovo.com/eu-doc-notebooks
•
For tablets:
https://www.lenovo.com/eu-doc-tablets
This radio equipment operates with the following
frequency bands and maximum radio-frequency
power:
Technology
WLAN
802.11b/g/n
WLAN
802.11a/n/ac
WLAN
802.11a/n/ac
Bluetooth
BR/EDR/LE
中国无线电型号核准信息
本产品（型号：ThinkPad S3-490）型号核准代码通过电
子标签显示，请参照《安全与保修指南》之法规信息标
签查找电子标签。
电子标签样式如下：
CMIIT ID: 2018AP6863
Maximum
Frequency
transmit
band [MHz]
power
2400 -
< 20 dBm
2483.5
5150 - 5725
< 23 dBm
< 13.98
5725 - 5875
dBm
2400 -
< 20 dBm
2483.5
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