Cisco Cisco 5520 Wireless Controller Referencia técnica

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Cisco Aironet 1600/2600/3600 Series Access Point Deployment Guide
 
  Unique Installations
Figure 27
Metal Pins or Padlocks for Areas of High Vibration
Warehouse and Factory
Warehouse installations are often difficult because of the very high ceilings 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.
For aisles, use directional (patch) antennas on the wall and shoot down the aisles. You can also use 
low-gain omni-directional antennas (such as dipoles) on the ceiling or units with integrated antennas; 
high gain omni-directional antennas tend to have more nulls. (See 
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