Access Point Spacing Recommendations; Idf Closets (Telecommunications Or Other Electrical Equipment); Very High Altitudes; Common Or Distributed Antenna System (Das) - Cisco Aironet 1600 Deployment Manual

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.
In order to comply with FCC, EU, and EFTA RF exposure limits, antennas should be located at a
Warning
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
http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps10981/
white_paper_c11-609300.html

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.
Cisco Aironet 1600/2600/3600 Series Access Point Deployment Guide
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