Proxim ORiNOCO AP-4900M User Manual page 56

Advanced Configuration
Interfaces
Super Mode and Turbo Mode
Super mode improves throughput between the access point and wireless clients that support this capability. For wireless
clients that support this capability the AP will negotiate and treat them accordingly, for other clients that do not support
super mode, the AP will treat them as normal wireless clients.
Super mode can be configured only when the wireless operational mode is one of the following:
• 802.11a only mode
• 802.11g only mode
• 802.11b/g mode
NOTE: Super mode is not available in 802.11b and 802.11g-wifi operational modes. Turbo mode is available only in
802.11a mode in the FCC regulatory domain.
Turbo mode is supported in 802.11a mode in the FCC regulatory domain. Turbo mode supports turbo speeds at twice the
standard data rates, and also dynamically switches between Turbo mode speeds and normal speeds depending on the
wireless client. All connected clients must be using Turbo mode in order for the AP to operate at Turbo mode speed. If
turbo mode is enabled, then this is displayed in the web UI and the transmit speeds and channels pull-down menus are
updated with the valid values.
When Turbo mode is enabled, only a subset of the wireless channels in the 5.0 GHz spectrum can be used. If any
wireless clients do not support turbo mode, the AP will fall back to normal mode.
Turbo mode can be configured only when Super mode has already been enabled.
Super mode is supported in the 2.4 GHz and 5 GHz frequency bands in all regulatory domains. Turbo mode is available
in the 5 GHz frequency band in the FCC regulatory domain.
NOTE: Turbo mode and Mesh mode (either Mesh AP or Mesh Portal) can not be enabled on the same interface
simultaneously.
IEEE 802.11d Support for Additional Regulatory Domains
The IEEE 802.11d specification allows conforming equipment to operate in more than one regulatory domain over time.
IEEE 802.11d support allows the AP to broadcast its radio's regulatory domain information in its beacon and probe
responses to clients. This allows clients to passively learn what country they are in and only transmit in the allowable
spectrum. When a client enters a regulatory domain, it passively scans to learn at least one valid channel, i.e., a channel
upon which it detects IEEE Standard 802.11 frames.
The beacon frame contains information on the country code, the maximum allowable transmit power, and the channels to
be used for the regulatory domain.
The same information is transmitted in probe response frames in response to a client's probe requests. Once the client
has acquired the information required to meet the transmit requirements of the regulatory domain, it configures itself for
operation in the regulatory domain.
On some AP models, the regulatory domain and associated parameters are automatically configured when a country is
selected on the System tab. On APs in which country selection is not available on the system tab, the regulatory domain
is pre-programmed into the AP prior to shipment. Depending on the regulatory domain, a default country code is chosen
that is transmitted in the beacon and probe response frames.
Configuring 802.11d Support
Perform the following procedure to enable 802.11d support and select the country code:
1. Click Configure > Interfaces > Operational Mode.
2. Select Enable 802.11d.
3. Select the Country Code from the ISO/IEC 3166-1 CountryCode drop-down menu.
NOTE: On APs with model numbers ending in -WD, this object is not configurable.
AP-4000/4000M/4900M User Guide
56