User's Manual

Radio configuration 53
Country
The country of operation, also known as the regulatory domain, determines the availability of
certain wireless settings on the M220.
Once the country has been set, the M220 automatically limits the available wireless channels
and channel width, and adjusts the radio power level in accordance with the regulations of the
selected country.
Caution Incorrectly selecting the country may result in illegal operation and may cause harmful
interference to other systems. Please ensure that the M220 is operating in accordance with
channel, power, indoor/outdoor restrictions, and license requirements for the intended country.
If you fail to heed this caution, you may be held liable for violating the local regulatory
compliance.
Basic settings
Radio
The wireless radio is enabled by default. If you disable the radio, no wireless clients can
connect.
Mode
Select the mode that best supports the wireless clients at your location.
Supported wireless modes are determined by the regulatory domain (country). Available
options may include one or more of the following:
• IEEE 802.11a: Up to 54 Mbps for 802.11a in the 5 GHz frequency band.
• IEEE 802.11b/g: (Compatibility mode.) Up to 11 Mbps for 802.11b and 54 Mbps for
802.11g in the 2.4 GHz frequency band. Use this setting only when support for 802.11b is
necessary and support for 802.11n is not desired.
• IEEE 802.11a/n: (Compatibility mode.) Up to 54 Mbps for 802.11a and 300 Mbps for
802.11n in the 5 GHz frequency band.
• IEEE 802.11b/g/n: (Compatibility mode.) Up to 300 Mbps for 802.11n, 54 Mbps for
802.11g, and 11 Mbps for 802.11b in the 2.4 GHz frequency band. Use this setting when
support for 802.11b and 802.11n is necessary.
• IEEE 802.11n (5 GHz): (Pure 802.11n) Up to 300 Mbps in the 802.11n 5 GHz frequency
band.
• IEEE 802.11n (2.4 GHz): (Pure 802.11n) Up to 300 Mbps in the 802.11n 2.4 GHz
frequency band.