Примечания к выпуску для Cisco Cisco 2000 Series Wireless LAN Controller
4
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 4.0.179.11
OL-11734-01
New Features
4.
Re-enable your 802.11a and 802.11b networks.
Note
Controllers can be upgraded from one release to another. However, should you require a downgrade from
one release to another, you may be unable to use the higher release configuration. The workaround is to
reload the previous controller configuration files saved on the backup server or to reconfigure the
controller.
one release to another, you may be unable to use the higher release configuration. The workaround is to
reload the previous controller configuration files saved on the backup server or to reconfigure the
controller.
New Features
This release does not introduce new features.
Installation Notes
This section contains important information to keep in mind when installing controllers and access
points.
points.
Warnings
Warning
This warning means danger. You are in a situation that could cause bodily injury. Before you work on
any equipment, be aware of the hazards involved with electrical circuitry and be familiar with
standard practices for preventing accidents.
any equipment, be aware of the hazards involved with electrical circuitry and be familiar with
standard practices for preventing accidents.
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Do not locate any antenna near overhead power lines or other electric light or power circuits, or
where it can come into contact with such circuits. When installing antennas, take extreme care not
to come in contact with such circuits, as they may cause serious injury or death. For proper
installation and grounding of the antenna, refer to national and local codes (e.g. U.S.: NFPA70,
National Electrical Code, Article 810, in Canada: Canadian Electrical Code, Section 54).
where it can come into contact with such circuits. When installing antennas, take extreme care not
to come in contact with such circuits, as they may cause serious injury or death. For proper
installation and grounding of the antenna, refer to national and local codes (e.g. U.S.: NFPA70,
National Electrical Code, Article 810, in Canada: Canadian Electrical Code, Section 54).
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than: 120 VAC, 15A U.S. (240vac, 10A International)
the protective device is rated not greater than: 120 VAC, 15A U.S. (240vac, 10A International)
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground connector. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available.
absence of a suitably installed ground connector. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available.
Warning
Read the installation instructions before you connect the system to its power source.