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LS Research
2012-12-01, 10:37 AM
Great blog on what to consider when implementing a module into an RF design.

The effect of integrating a WiFi module on a product's compliance to the applicable technical standards in the US will greatly depend on the type of product which has been modified, the module selected, and the compliance status of the each prior to the integration.The FCC Office of Engineering and Technology (OET) Equipment Authorization (EA) procedures include product verification, declaration of conformity (DoC), and/or certification; the type, industry, and implementation of the product will determine which authorization is appropriate and applicable. WiFi modules are intentional radiators requiring certification, and are subject to the requirements of Title 47 CFR Part 15 for unlicensed transmitters.

When considering a WiFi module (http://www.lsr.com/wireless-products/wifi-bluetooth-module-selection-guide), there is a tangible cost benefit to implementing a modular design which already has a Grant of Authorization with modular approval from the FCC. The certification costs related to a module are significant; and depending on the antenna design and WLAN protocols utilized, the approval process can exceed 8 to 12 weeks. By integrating one which already has modular approval, the certification for FCC compliance is complete and the product may only need an updated declaration of conformity (DoC) or verification.

Considerations of integrating a this type of module in a product for CE marking differ from those in the US. The European Union (EU) does not consider the modular approval program of the United States and Canada; however, this may not equate to a test program requiring a complete re-certification of the specific module, dependent upon the integration of the module itself.

To read the rest: http://info.lsr.com/lsr-emc-compliance-and-certification-blog-/bid/213949/Let-s-Say-You-ve-added-a-WiFi-Module-to-your-product-what-s-next