Installation Notes - Cisco 4G-ANTM-OM-CM Manual

Cisco Aironet Four-Element, MIMO, Dual-Band Ceiling Mount Omni-Directional Antenna (AIR-ANT2524V4C-R)
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Plan your installation procedure carefully and completely before you begin.
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If you are installing an antenna for the first time, for your own safety as well as others, seek professional assistance. Consult
your dealer, who can explain which mounting method to use for the location where you intend to install the antenna.
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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.
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Call your local power company or building maintenance organization if you are unsure about cables close to your mounting
location.
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When installing your antenna:
— Do not use a metal ladder.
— Dress properly: shoes with rubber soles and heels, rubber gloves, and a long sleeved shirt or jacket.
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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:
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Mount the antenna to utilize its propagation characteristics. A way to do this is to orient the antenna horizontally as high as
possible at or near the center of its coverage area.
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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.
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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:
— Paper and vinyl walls have very little affect on signal penetration.
— Solid and pre-cast concrete walls limit signal penetration to one or two walls without degrading coverage.
— Concrete and wood block walls limit signal penetration to three or four walls.
— A signal can penetrate five or six walls constructed of drywall or wood.
— A thick metal wall causes signals to reflect off, causing poor penetration.
— A wire mesh spaced between 1 and 1 1/2 in. (2.54 and 3.81 cm) acts as a harmonic reflector that blocks a 2.4 GHz
radio signal.
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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.
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Install the antenna horizontally to maximize signal propagation.
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