Cisco Aironet AIR-ANT5145V-R User Manual

Cisco Aironet 4.5-dBi Low Profile
Omnidirectional Antenna (AIR-ANT5145V-R)

This document describes the Cisco Aironet 4.5-dBi Diversity Omnidirectional Antenna
(AIR-ANT5145V-R), and provides instructions for mounting it. The antenna operates in the 5-GHz
frequency range and is designed for use indoors.

The following information is provided in this document.

• Technical Specifications, page 2

• System Requirements, page 3

• Installation Guidelines, page 3

• Safety Instructions, page 3

• Installing the Antenna, page 4

• Obtaining Documentation and Submitting a Service Request, page 8

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Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

© 2006 Cisco Systems, Inc. All rights reserved.

Technical Specifications

Technical Specifications

Antenna type Omnidirectional

Operating frequency range 5150 – 5850 MHz

Nominal input impedance 50Ω

2:1 VSWR bandwidth 5000 – 6000 MHz

Gain 4.5 dBi

Polarization Linear

Front-to-back ratio 10 dB

E-plane 3dB beamwidth 50°

H-plane 3dB beamwidth Omnidirectional

Cable length and type 36 in. (91.4 cm)

Connector type 2 RP-TNC Male

Length 5 in. (12.7 cm)

Width 3 in. (7.6 cm)

Height 0.75 oz (21.2 g)

Operating temperature –22°F – 158°F

Storage temperature –40°F – 185°F

UL2043 compliant Yes

Environment Indoor, office

H-Plane Pattern E-Plane Pattern

TM02 Mode Patch

121666

Plenum rated UV
stable LMR-185

(–30°C – 70°C)

(–40°C – 85°C)

Cisco Aironet 4.5-dBi Low Profile Omnidirectional Antenna (AIR-ANT5145V-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 utilizes reverse polarity Neil Councilman (RP-TNC) connectors.

Installation Guidelines

Because the antenna transmits and receives 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. One way to do this is to orient the

antenna horizontally and mount it as high as possible.

• 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:

–

Paper and vinyl walls have very little affect on signal penetration.

System Requirements

–

Solid and pre-cast concrete walls limit signal penetration to one or two walls without degrading
coverage.

–

Wood and concrete 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.

Safety Instructions

Follow these safety precautions when installing your antenna.

• Plan your installation procedure carefully and completely before you begin.

• 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.

• Select your installation site with safety, as well as performance, in mind. Remember that electric

power lines 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 intended mounting location.

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

immediately.

• When installing your antenna in any location, do not use a metal ladder. Do dress properly - shoes

with rubber soles and heels, rubber gloves, and a long sleeved shirt or jacket. When drilling
mounting holes, wear safety glasses.

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Cisco Aironet 4.5-dBi Low Profile Omnidirectional Antenna (AIR-ANT5145V-R)

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