Cisco Unified Wireless IP Phone 7925G Series Deployment Guide 12
• Division 1 - A location where a classified hazard is likely to exist.
• Division 2 - A location where a classified hazard does not normally exist but is possible under abnormal conditions.
Internationally (and more recently in North America, for Class I hazardous locations), areas where explosive gas atmospheres
are likely to be present are divided into three IEC-defined Zones:
• Zone 0 - An area in which an explosive gas atmosphere is continuously present or present for long periods.
• Zone 1 - An area in which an explosive gas atmosphere is likely to occur in normal operation.
• Zone 2 - An area in which an explosive gas atmosphere does not normally exist.
World Mode (802.11d)
If using the Cisco Unified Wireless IP Phone 7925G World (-W) model, the Cisco Unified Wireless IP Phone 7925G-EX
model, then it is required to enable 802.11d. The Cisco Unified Wireless IP Phone 7925G Series gives precedence to 802.11d to
determine the channels and transmit powers to use and inherits its client configuration from the associated access point.
Enable World Mode (802.11d) for the corresponding country where the access point is located.
If 802.11d information is not available from the access point, then the Cisco Unified Wireless IP Phone 7925G (-A, -E, -P)
model uses the locally configured regulatory domain. If the Cisco Unified Wireless IP Phone 7925G Series -A, -E or -P model
is taken to another country, where the access point uses a different regulatory domain, then 802.11d will be required for the
Cisco Unified Wireless IP Phone 7925G Series to operate successfully.
When using 802.11a, enable 802.11d to discover which channels can potentially be used in the network. Specifically, for
802.11h support, the phone passively scans some of the 5 GHz channels (DFS) first before actively scanning any network
channels.
If using 2.4 GHz (802.11b/g) and 802.11d is not enabled, then the Cisco Unified IP Phone 7925G Series can attempt to use
channels 1-11 and reduced transmit power.
Note: World Mode is enabled automatically for the Cisco Unified Wireless LAN Controller.
World Mode must be enabled manually for Cisco Autonomous Access Points using the following commands:
Interface dot11radio X
world-mode dot11d country US both
Supported Countries
Below are the countries and their 802.11d codes that are supported by the Cisco Unified Wireless IP Phone 7925G Series.
To Next Page
Loading...
Need help?
General
