User Guide

The following illustration shows the antenna locations on your computer:
1 Wireless-LAN antenna (main)
2 Wireless-WAN antenna (main, for selected models)
3 Wireless-WAN antenna (auxiliary, for selected models)
4 Wireless-LAN antenna (auxiliary)
Locate wireless regulatory notices
For more information about the wireless regulatory notices, refer to the Regulatory Notice at https://
support.lenovo.com
.
European Union — compliance with the Radio Equipment Directive
This product is in conformity with all the requirements and essential norms that apply to EU Council Radio
Equipment Directive 2014/53/EU on the approximation of the laws of the Member States relating to radio
equipment. 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/us/en/social_responsibility/EU_DoC_notebooks
• For tablet computers: https://www.lenovo.com/us/en/social_responsibility/EU_DoC_notebooks
• For wireless peripheral devices: https://www.lenovo.com/us/en/social_responsibility/EU_DoC_wireless_
options
Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a
non-recommended modification of the product, including the installation of option cards from other
manufacturers. This product has been tested and found to comply with the limits for Class B equipment
according to European Standards harmonized in the Directives in compliance. The limits for Class B
equipment were derived for typical residential environments to provide reasonable protection against
interference with licensed communication devices.
Brazil
Este equipamento não tem direito à proteção contra interferência prejudicial e não pode causar interferência
em sistemas devidamente autorizados.
This equipment is not protected against harmful interference and may not cause interference with duly
authorized systems.
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T490s and X390 User Guide