Cisco Systems Aironet AIRANT5114P2MN User Manual

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Cisco Aironet 5-GHz14-dBiDirectional Antenna

(AIR-ANT5114P2M-N)

This document outlines the specifications for the Cisco Aironet AIR-ANT5114P2M-N5-GHz14-dBi2-PortDirectional antenna withN-typeconnectors and provides instructions for mounting it. The antenna operates in the5-GHzfrequency band and is designed for use in outdoor environments.

The following information is provided in this document.

Technical Specifications, page 2

System Requirements, page 3

Safety Precautions, page 3

Installation Guidelines, page 4

Installing the Antenna, page 5

Obtaining Documentation and Submitting a Service Request, page 13

Cisco Systems, Inc.

www.cisco.com

Technical Specifications

Technical Specifications

Antenna type

2-ElementPatch

 

 

Array

 

Operating frequency range

5150–5900MHz

 

Nominal input impedance

50 Ohms

 

Peak gain

14 dBi

 

Polarization

Linear, Dual

 

Elevation plane 3-dB

30°

 

beamwidth

 

 

Azimuth plane 3-dB

30°

 

beamwidth

 

 

Sidelobe level

< –15dBc

 

Front-to-backratio

> 25 dB

 

Cable length and type

30 in. (76.2 cm)

334576

 

outdoor rated Coax

 

Connector type

N Male

 

Length

7.8 in. (19.8 cm)

 

Width

7.8 in. (19.8 cm)

 

Height

1.2 in. (3 cm)

 

Weight

21.6 oz. (0.61 kg)

 

Operating temperature range

–40°Fto 131°F

 

 

(–40°Cto 55°C)

 

Elevation and Azimuth Plane Patterns

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System Requirements

System Requirements

This antenna is designed for use with Cisco Aironet access points and bridges but can be used with any 5-GHzCisco Aironet radio device that uses anN-maleconnector.

Safety Precautions

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

Warning 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.

Warning 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.

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

Warning 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.

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.

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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 dressproperly—shoeswith 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, do not 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 as high as possible to take advantage of its propagation characteristics.

Keep the antenna away from metal obstructions such as heating and air-conditioningducts, 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:

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

Solid and pre-castconcrete 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-GHzcordless phones. These products can cause signal interference because they operate in the same frequency range as the device your antenna is connected to.

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Site Selection

Before attempting to install your antenna, determine where you can best place the antenna for safety and performance.

Follow these steps to determine a safe distance from wires, power lines, and trees.

Step 1 Measure the height of your antenna.

Step 2 Add this length to the length of your tower or mast and then double this total for the minimum recommended safe distance.

Caution If you are unable to maintain this safe distance, stop and get professional help.

Generally, the higher an antenna is above the ground, the better it performs. Good practice is to install your antenna about 5 to 10 ft (1.5 to 3 m) above the roof line and away from all power lines and obstructions. If possible, find a mounting place directly above your wireless device so that the lead-incable can be as short as possible.

Installing the Antenna

You can install the antenna on a pole from 1.63” to 2.3” pipe O.D. The mounting options allow the antenna to be vertically or horizontally polarized.

Tools and Equipment Required

An installation kit is shipped with the antenna and consists of the panel antenna with adjustable mount and hardware, including:

Antenna mount bracket

Elevation adjustable bracket

Azimuth adjustable bracket

Four 1/4-in.20x3/4 carriage bolts

Six 1/4-in.20 hex nuts

Six 1/4-in.20 spring lock washers

Six 1/4-in.20 flat washers

Two pipe clamps

To attach the mount to the antenna and secure it to the pole, you need the following tools and equipment, which are not provided.

7/16-inwrench

5/16-innut driver or flat head screwdriver for pipe clamps

The following sections contain typical procedures for installing the antenna on a pole. Your installation may vary. Before you begin, you may want to refer to Figure 1.

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Mounting on a Pole

Follow these steps to mount your antenna on a pole.

Step 1 Remove antenna and mount kit from packaging.

Step 2 Attach antenna mount bracket to the back of the antenna as shown applying a maximumnut-tighteningtorque of 55in-lbf(6.2 Nm).

Figure 1

Attaching Antenna Mount Bracket

4

3

2

1

334630

1

Antenna mount bracket

3

1/4-in.spring lock washer

 

 

 

 

2

1/4-in.flat washer

4

1/4-in.20 hex nut

 

 

 

 

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Step 3 Attach elevation adjustable bracket as shown and loosely secure hardware. The carriage bolt square holes must be on the inside.

Figure 2

 

Attaching Elevation Adjustable Bracket

5

4

3

2

1

2

3

4

5

 

 

 

334631

1

Elevation adjustable bracket

4

1/4-in.spring lock washer

2

1/4-in.20x3/4 carriage bolt

5

1/4-in.20 hex nut

3

1/4-in.flat washer

 

 

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Step 4 Attach azimuth adjustable bracket to pipe routing band clamps as shown. Tighten the pipe clamps to a torque of43-51in-lbf(4.9-5.8Nm).

Figure 3

 

 

 

Attaching Azimuth Adjustable Bracket

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

2

334635

1

Azimuth adjustable bracket

2

Pipe clamps

 

 

 

 

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Step 5 Attach antenna assembly to azimuth bracket on pipe.

Figure 4

Attaching Antenna Assembly

3

2 5

1

4

1

5

23

334638

1

1/4-in.flat washer

4

Elevation adjustable bracket

 

 

 

 

2

1/4-in.spring lock washer

5

1/4-in.20x3/4 carriage bolt

 

 

 

 

3

1/4-in.20 hex nut

 

 

 

 

 

 

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Step 6 Adjust the position of the antenna to the desired azimuth and elevation angles and tighten all pivot hardware (4 places) to a maximum torque of 55in-lbf(6.2 Nm). The bracket allows the antenna position to be adjustable to+/–45degrees azimuth and+/–60degrees elevation.

Figure 5

 

Adjusting Antenna Position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

334640

Note Cisco recommends grounding the antenna. See the“Grounding the Antenna” section on page 13 for details.

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Installing the Optional Mounting Bracket Kit

Using an optional antenna mounting bracket kit, the AIR-ANT5114P2M-Nantenna can be mounted directly on an access point in a strand mount or pole mount environment. The antenna bracket kit contains four bracket sections and fasteners that you can assemble in multiple configurations to position and aim the directional antenna in a range of positions. For more information on mounting the antenna with the optional mounting bracket, refer toInstalling Antenna Brackets on Cisco 1550 Series Outdoor Mesh Access Points.

Mounting on a Vertical Surface

The antenna can be wall mounted. Hardware is not included for wall-mountinstallation.

Follow these steps to mount your antenna on a vertical surface.

Step 1 Remove antenna and mount kit from packaging.

Step 2 Attach antenna mount bracket to the back of the antenna as shown inFigure 1, applying a maximumnut-tighteningtorque of 55in-lbf(6.2 Nm).

Step 3 Attach elevation adjustable bracket (B) as shown inFigure 2 and loosely secure hardware. The carriage bolt square holes must be on the inside.

Step 4 Using the appropriatecustomer-suppliedanchors and screws, attach the azimuth adjustable bracket to the wall as shown:

Figure 6

Wall Mounting

334653

Figure 7 shows, in inches, the distance between the bracket mounting holes.

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Figure 7

Distance Between Bracket Mounting Holes

2.40

2.40

347802

Step 5 Attach antenna assembly to azimuth bracket, as shown inFigure 4.

Step 6 Adjust the position of the antenna to the desired azimuth and elevation angles and tighten all pivot hardware (4 places) to a maximum torque of 55in-lbf(6.2 Nm). The bracket allows the antenna position to be adjustable to+/–45degrees azimuth and+/–60degrees elevation.

Note Cisco recommends grounding the antenna. See the“Grounding the Antenna” section on page 13 for details.

Antenna Cable Information

If the antenna is used with the Cisco 1552CU or 1552EU access point, the port A of the antenna must be connected to port 1 of the access point, port B of the antenna must be connected to port 3 of the access point, and port 2 of the access point must be capped with the cap enclosed with the antenna.

Note Coaxial cable loses efficiency as the frequency increases, resulting in signal loss. The cable should be kept as short as possible because cable length also causes signal loss (the longer the run, the greater the loss).

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Note The antenna cable has a 0.5 in. (12.7 mm) bend radius. Sharply bending or crimping the cable may cause a degradation in performance.

The antenna terminates with an N-maleplug after a short,2.5-ft(0.76-m)cable. The mating connector to the antenna is an appropriateN-femalejack. The connector on the opposite end will vary according to the type of equipment used.

After the cable is attached to the antenna, make sure that the connections are sealed (if outdoors) to prevent moisture and other weathering elements from affecting performance. Cisco recommends using a coax seal (such as CoaxSeal) for outdoor connections. Silicone sealant or electrical tape are not recommended for sealing outdoor connections.

Grounding the Antenna

Follow these steps to ground the antenna in accordance with national electrical code instructions.

Step 1 Use No. 10 AWG copper or No. 8 or largercopper-cladsteel or bronze wire as ground wires for both mast andlead-in.Securely clamp the wire to the bottom of the mast.

Step 2 Secure thelead-inwire to an antenna discharge unit and the mast ground wire to the building withstand-offinsulators spaced from 4 ft (1.2 m) to 8 ft (2.4 m) apart.

Step 3 Mount the antenna discharge unit as close as possible to where thelead-inwire enters the building.

Step 4 Drill a hole in the building’s wall as close as possible to the equipment to which you will connect thelead-incable.

Caution There may be wires in the wall. Make sure your drilling location is clear of any obstructions or other hazards.

Step 5 Pull the cable through the hole and form a drip loop close to where it enters the building.

Step 6 Thoroughly waterproof thelead-inarea.

Step 7 Install a lightning arrestor.

Step 8 Connect thelead-incable to the equipment.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation at:http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html.

Subscribe to What’s New in Cisco Product Documentation, which lists all new and revised Cisco technical documentation, as an RSS feed and deliver content directly to your desktop using a reader application. The RSS feeds are a free service.

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Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks.Third-partytrademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)

Copyright © 2012-2013Cisco Systems, Inc. All rights reserved.

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