- Cisco Network Router User's Manual

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CiscoAironetAccessPointDeploymentGuide 
CiscoSystems
Copyright©2012CiscoSystems,Inc.Allrightsreserved.
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Figure28:MetalPinsorPadlocksforAreasofHighVibration
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WarehouseandFactory
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Warehouse installations are often difficult becaus e  of the very high ce ilings and the clutter of the
materialinstorage.Aspartofyoursitesurvey,alwayscheckthecoveragewhenthewarehouseisfully
stocked,sincethematerialinstoragecanchangetheRFcoverageandinterferewithuniformcoverage.
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Foraisles,usedirectional(patch)antennasonthewallandshootdowntheaisles.Youcanalsouselow‐
gain omnidirectional antennas (such as dipoles) on the ceiling or units with integrated antennas; high
gainomnidirectionalante nnastendtohavemorenulls.(SeeFigure50.)
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ThehighertheAP is
mounted,thefartherthesignal musttravel. Usepipeandelectricalboxmounting 
techniques to lower the AP (external and internal antenna models) so that it is  closer to users. (See
Figure29.)
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