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Cisco Aironet Four-Port Dual-Band Polarization-Diverse Antenna (AIR-ANT2513P4M-N)
Select your installation site with safety, as well as performance, in mind. Remember that electric power cables and
telephone lines look alike. For your safety, assume that any line is an electric power line until determined otherwise.
Call your local power company or building maintenance organization if you are unsure about cables close to your mounting
location.
When installing your antenna, do not use a metal ladder. Do dress properly: shoes with rubber soles and heels, rubber
gloves, and a long sleeved shirt or jacket.
If an accident or emergency occurs with the power lines, call for qualified emergency help immediately.
Installation Notes
Because antennas transmit and receive radio signals, they are susceptible to RF obstructions and common sources of
interference that can reduce throughput and range of the device to which they are connected. Follow these guidelines to ensure
the best possible performance:
Mount the antenna to utilize its propagation characteristics. This antenna is designed to radiate energy in a somewhat
narrow beam from the front of the antenna. It should be aimed into the intended coverage area.
Keep the antenna away from metal obstructions such as heating and air-conditioning ducts, large ceiling trusses, building
superstructures, and major power cabling runs. If necessary, use a rigid conduit to lower the antenna away from these
obstructions.
The density of the materials used in a building's construction determines the number of walls the signal must pass through
and still maintain adequate coverage. Consider the following before choosing the location to install your antenna:
—
Signals penetrate paper, vinyl and drywall the easiest. A signal can penetrate five or six walls constructed of drywall or
wood.
—
Signals are more heavily attenuated passing through concrete and solid-wood walls.
—
Signals often reflect off thick metal walls and may not penetrate at all.
Install the antenna away from microwave ovens and 2-GHz cordless phones. These products can cause signal interference
because they operate in the same frequency range as the device to which your antenna is connected.
Choosing a Mounting Location
The antenna should be mounted clear of any obstructions to the side or front of the enclosure. Keep in mind that this antenna
should be aimed into the intended coverage area, so you should mount the antenna so that the desired mechanical tilt can be
achieved. If possible, mount the antenna near the access point so you can use the shortest possible connecting cables.
Installing the Antenna
You can install the antenna on any flat surface or on a pole with a minimum diameter of 2 inches (5.08 cm) and a maximum
diameter of 5 inches (12.7 cm). The antenna and one mounting flange are connected together when shipped. When mounting
the antenna you need to assemble the bracket hardware, connect the antenna and bracket to the mounting surface, and adjust
the antenna orientation.
Contents of Antenna Bracket Kit
Figure 4
shows the parts included with the antenna bracket.
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