Information About Configuring Country Codes
Controllers and access points are designed for use in many countries with varying regulatory requirements. The radios within the access points are assigned to a specific regulatory domain at the factory (such as -E for Europe), but the country code enables you to specify a particular country of operation within that regulatory domain (such as FR for France or ES for Spain). Configuring a country code ensures that each radio’s broadcast frequency bands, interfaces, channels, and transmit power levels are compliant with country-specific regulations.
The following are some guidelines for configuring country codes:
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Generally, you configure one country code per controller, the one matching the physical location of the controller and its access points. However, you can configure more than one country code per controller. Prior to Release 8.2, you could configure up to 20 country codes per controller; from Release 8.2 onwards, you can configure up to 110 country codes per controller. This multiple-country support enables you to manage access points in various countries from a single controller.
Note
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The 2.4-GHz band radio regulations are the same for the EU and China. Hence, under the 2.4-GHz radio band, it is possible to see -H domain configured APs (China) with the -E AP list in the controller.
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For a complete list of country codes supported per product, see https://www.cisco.com/c/dam/assets/prod/wireless/wireless-compliance-tool/index.html.
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When the multiple-country feature is being used, all controllers that are going to join the same RF group must be configured with the same set of countries, configured in the same order.
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When multiple countries are configured and the RRM auto-RF feature is enabled, the RRM assigns the channels that are derived by performing a union of the allowed channels per the AP country code. The APs are assigned channels by the RRM based on their PID country code. APs are only allowed to use legal frequencies that match their PID country code. Ensure that your AP's country code is legal in the country that it is deployed.
Information About Japanese Country Codes
Country codes define the channels that can be used legally in each country. These country codes are available for Japan:
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JP: Allows only –J radios to join the controller
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J2: Allows only –P radios to join the controller
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J3: Uses the –U frequencies, but allows –U, –P, and –Q radios to join the controller
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J4: Allows 2.4G JPQU and 5G PQU to join the controller.
See the Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points document for the list of channels and power levels supported by access points in the Japanese regulatory domains.