Cisco Cisco 5520 Wireless Controller Referencia técnica

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Cisco Aironet 1600/2600/3600 Series Access Point Deployment Guide
 
  Unique Installations
Access Point Spacing Recommendations
If you have a Wi-Fi device such as an AP and want to use another AP in the vicinity on a different 
channel, space the APs approximately six feet (two meters) apart. This recommended distance is based 
on the assumption that both devices operate in the unlicensed band and do not transmit RF energy more 
than 23 dB - that is, 200 mW. If higher power is used, space farther apart. Avoid clustering the APs or 
the antennas from different APs together, since this could degrade performance.
If you have other devices that transmit, move or separate the devices as far apart as reasonable. (This is 
especially important if they operate in the same frequency ranges; for example, frequency hopping 
legacy APs or other devices may operate just below or above the 2.4 and 5 GHz band.) Then, check for 
interference. Test both types of devices at the same time under heavy utilization (load), then characterize 
each system independently to see whether degradation exists.
Warning
In order to comply with FCC, EU, and EFTA RF exposure limits, antennas should be located at a 
minimum of 7.9 inches (20 cm) or more from the body of all persons. See the installation guide under 
Declaration of Conformity for more information.
IDF Closets (Telecommunications or Other Electrical Equipment)
When installing APs near other electrical or telecommunications equipment, keep all wiring and metal 
away from the antennas, and avoid placing the antennas near electrical lines. Do not route electrical 
wiring or Ethernet in the near field (6-15 inches) of the antenna, and try not to install the AP in an 
electrical closet. If you remote antenna cables from such a closet, you may be required to use Plenum 
rated cable, so refer to local fire and safety regulations. Remember that the best place for the AP is as 
close to the users as practical.
For more information on interference, see 
Very High Altitudes
While not defined in the specification sheet for the AP 2600 and the AP 3600, these APs passed 
functional checks after a non-operational altitude test of 25C @ 15,000 Ft was performed. Additionally, 
they fully passed a functional test during an operational altitude test of 40C @ 9,843 ft.
All units in the test group were connected to at least one WLAN client and were monitored for continual 
operation passing traffic, with constant ping testing throughout the operational altitude test.
Common or Distributed Antenna System (DAS)
Due to the dual-band nature of the antenna system on the AP 2600 and the AP 3600, along with key 
features such as ClientLink 2.0 beamforming, the AP 2600 and the AP 3600 are not recommended for 
deployments on Distributed Antenna Systems (DAS).
Note
Cisco does not certify, endorse or provide RF support for Wi-Fi deployments over any DAS.