Cisco Catalyst 9130 Manual - Página 7

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Introduction to Cisco Catalyst 9130 Access Point with 9104 Stadium Antenna

• If the assembly starts to drop, get away from it and let it fall. Remember, the antenna, mast, cable, and

• If any part of the antenna system should contact a power line, don't touch it or remove it yourself. Instead,

• If an accident occurs with the power lines, call for qualified emergency help immediately.

For a listing of all the warning statements and their translations, see Translated Safety Warnings for Cisco

Aironet Access Points at:

http://www.cisco.com/c/en/us/td/docs/wireless/access_point/warnings/reference/guide/ap_warn1.html

Installation Notes

Antennas transmit and receive radio signals susceptible to RF obstructions and common sources of interference

that can reduce throughput and the range of the device connected with them. Therefore, follow these guidelines

to ensure the best possible performance:

• Keep the antenna away from metal obstructions such as:

• In an outdoor environment, connect the antenna to a lightning arrestor and ensure proper grounding.

• The density of the materials used in a building's construction determines the number of walls the signal

• Do not work on a wet or windy day.

• Do dress properly: shoes with rubber soles and heels, rubber gloves, long–sleeved shirt, or jacket.

metal guy wires are all excellent conductors of electrical current. The slightest touch of these parts to a

power line completes an electrical path through the antenna and the installer: You!

call your local power company. They would remove it safely.

• Heating

• Air-conditioning ducts

• Large ceiling trusses

• Building superstructures

• Major power cabling runs

If necessary, use a rigid conduit to lower the antenna away from these obstructions.

can pass through and maintains adequate signal strength. Consider the following before choosing the

location for your antenna:

• Signals penetrate paper and vinyl walls with little change to signal strength.

• Signals penetrate only one or two solid and precast concrete walls without degrading signal strength.

• Signals penetrate three or four concrete and woodblock walls without degrading signal strength.

• Signals penetrate five or six walls constructed of drywall or wood without degrading signal strength.

• Signals are likely to reflect off a thick metal wall and may not penetrate it at all.

• Signals are likely to reflect off a chain–link fence or wire mesh spaced between 1 and 1 1/2 inches.

(2.5 cm and 3.8 cm) The fence acts as a harmonic reflector that blocks the signal.

Introduction to Cisco Catalyst 9130 Access Point with 9104 Stadium Antenna

Installation Notes