Cisco AIR-ANT5170P-R User Manual

Cisco Aironet 7-dBi Diversity Patch Antenna (AIR-ANT5170P-R)

This document outlines the specifications, describes the AIR-ANT5170P-R 7-dBi diversity patch antenna, and provides instructions for mounting it. The antenna operates in the 5-GHz frequency range and is designed for use in both indoor and outdoor environments.

The following information is provided in this document.

• Technical Specifications, page 2

• System Requirements, page 3

• Installation Guidelines, page 4

• Installing the Antenna, page 5

• Obtaining Documentation, page 7

• Documentation Feedback, page 8

• Cisco Product Security Overview, page 8

• Obtaining Technical Assistance, page 9

• Obtaining Additional Publications and Information, page 11

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Technical Specifications

Antenna type Diversity patch

Operating frequency range 5150–5850 MHz

Nominal input impedance 50Ω

2:1 VSWR bandwidth 5150–5850 MHz

Peak gain 7.0 dBi

Polarization Vertical

E-plane 3-dB beamwidth 50°

H-plane 3-dB beamwidth 70°

Front-to-back ratio 18 dB

Cable length and type 36 in. (91.4 cm)

Connector type RP-TNC plug

Length 5.7 in. (14.5 cm)

Width 4.3 in. (10.9 cm)

Height 0.7 in. (1.8 cm)

Weight 8 oz (0.2 kg)

Operating temperature range –22°F - 158°F

Storage temperature range –40°F - 185°F

Wind rating 80 mph (128.7 kph)

H-Plane Pattern E-Plane Pattern

Plenum rated, UV stable

(–30°C -70°C)

(–40°C - 85°C)

Cisco Aironet 7-dBi Diversity Patch Antenna (AIR-ANT5170P-R)

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System Requirements

This antenna is designed for use with Cisco Aironet access points and bridges but can be used with any 5-GHz Cisco Aironet radio device that uses an RP-TNC connector.

Safety Precautions

System Requirements

Warning

Installation of this antenna near power lines is dangerous. For your safety, follow the installation directions.

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents.

In order to comply with international radio frequency (RF) exposure limits, dish antennas should be located at a minimum of 8.7 inches (22 cm) or more from the bodies of all persons. Other antennas should be located a minimum of 7.9 inches (20 cm) or more from the bodies of all persons.

Do not work on the system or connect or disconnect cables during periods of lightning activity.

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.

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Warning

Do not locate the antenna near overhead power lines or other electric light or power circuits, or where it can come into contact with such circuits. When installing the antenna, take extreme care not to come into contact with such circuits, as they may cause serious injury or death. For proper installation and grounding of the antenna, please refer to national and local codes (e.g. U.S.:NFPA 70, National Electrical Code, Article 810, in Canada: Canadian Electrical Code, Section 54).

Each year hundreds of people are killed or injured when attempting to install an antenna. In many of these cases, the victim was aware of the danger of electrocution, but did not take adequate steps to avoid the hazard.

For your safety, and to help you achieve a good installation, please read and follow these safety precautions. They may save your life!

1. If you are installing an antenna for the first time, for your own safety as well as others, seek

professional assistance. Your Cisco sales representative can explain which mounting method to use for the size and type antenna you are about to install.

2. Select your installation site with safety, as well as performance in mind. Remember: electric power

lines and phone lines look alike. For your safety, assume that any overhead line can kill you.

Cisco Aironet 7-dBi Diversity Patch Antenna (AIR-ANT5170P-R)

Installation Guidelines

3. Call your electric power company. Tell them your plans and ask them to come look at your proposed

installation. This is a small inconvenience considering your life is at stake.

4. Plan your installation carefully and completely before you begin. Successful raising of a mast or

tower is largely a matter of coordination. Each person should be assigned to a specific task, and should know what to do and when to do it. One person should be in charge of the operation to issue instructions and watch for signs of trouble.

5. When installing your antenna, remember:

a. Do not use a metal ladder.

b. Do not work on a wet or windy day.

c. Do dress properly—shoes with rubber soles and heels, rubber gloves, long sleeved shirt or

jacket.

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

and metal guy wires are all excellent conductors of electrical current. Even the slightest touch of any of these parts to a power line complete an electrical path through the antenna and the installer: you!

7. If any part of the antenna system should come in contact with a power line, don’t touch it or try to

remove it yourself. Call your local power company. They will remove it safely.

8. If an accident should occur with the power lines call for qualified emergency help immediately.

Installation Guidelines

Because the 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 best take advantage of its propagation characteristics. Mount it as high as

possible and oriented so that the cables are pointing down (towards the ground).

• 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 in which to install your antenna:

–

Dry 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, causing poor penetration.

• Install the antenna away from 5-GHz cordless phones. These products can cause signal interference

because they operate in the same frequency range as the device your antenna is connected to.

Cisco Aironet 7-dBi Diversity Patch Antenna (AIR-ANT5170P-R)

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