Cisco AIR-ANT5195P-R - Aironet Antenna Bedienungsanleitung

Corporate Headquarters:

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

Cisco Aironet 9.5-dBi Patch Antenna

(AIR-ANT5195P-R)

This document outlines the specifications, describes the AIR-ANT5195P-R 9.5-dBi 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 and Submitting a Service Request, page 11

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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Technical Specifications

Antenna type 2 x 2 Patch array

Operating frequency range 5150–5850 MHz

Nominal input impedance 50Ω

Peak gain 9.5 dBi

Polarization Linear, vertical

E-plane 3-dB beamwidth 43°

H-plane 3-dB beamwidth 50°

Sidelobe level <–20 dBc

Front-to-back ratio >20 dB

Cable length and type 36 in. (91.4 cm)

Plenum rated, UV

stable

Connector type RP-TNC Male

Length 5.1 in. (12.9 cm)

Width 5.1 in. (12.9 cm)

Height 1.0 in. (2.5 cm)

Weight 10 oz. (0.2 kg)

Operating temperature range –22°F to 158°F

(–30°C to 70°C)

Storage temperature range –40°F to 185°F

(–40°C to 85°C)

E-Plane Pattern H-Plane Pattern

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-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

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.

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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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 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 take advantage 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:

–

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 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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Installing the Antenna

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-in

cable can be as short as possible.

Installing the Antenna

You can install the antenna on any flat vertical surface or on a mast using the mast mounting kit. An

articulated mast mounting kit is also available. Hardware for mounting the antenna on drywall is

provided. If you intend to install your antenna on another surface, you must provide the appropriate

hardware.

Tools and Equipment Required

An installation kit is shipped with the antenna and consists of the following hardware:

•Four #8 x 1¾-in. sheet metal screws

•Four screw caps

•Four screw cap washers

You need the following tools and equipment, which are not provided.

•A #2 Phillips screwdriver

•A drill

•A 3/16-in. (4.8 mm) drill bit (for drywall installation; other surfaces may require a different size)

•A pencil

•A small mallet or hammer

The following sections contain typical procedures for installing the antenna on a vertical surface or a

mast. Your installation may vary. Before you begin, you may want to refer to Figure 1.

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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Installing the Antenna

Mounting on a Vertical Surface

Follow these steps to mount your antenna on a vertical surface. This procedure describes mounting the

antenna on a drywall surface. If you are mounting the antenna on any other type of surface, your

procedure may vary slightly.

Step 1 Determine the location in which you will mount the antenna.

Step 2 Use the antenna as a template to mark the locations of the four mounting holes with a pencil.

Step 3 Use a drill and 3/16-in. (4.8 mm) drill bit to drill four holes at the locations you marked in Step 2.

Step 4 Start a plastic anchor into each hole.

Step 5 Use a mallet or small hammer to seat the anchors into the wall.

Step 6 Align the antenna’s mounting holes with the anchors.

Caution The back of the antenna has an orientation marking. Make sure the antenna is mounted according to the

marking. If the antenna is not mounted properly, degraded performance could result.

Step 7 Put a screw cap washer onto a #8 screw and start the screw into each antenna mounting hole.

Step 8 Use a Phillips screwdriver to secure the antenna to the wall. Do not overtighten.

Step 9 Install the screw caps onto the screw cap washers.

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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Installing the Antenna

Mounting on a Mast

The antenna can be mounted on a mast using an optional mast mounting kit as shown in Figure 1.

Figure 1 Optional Mast Mount

Follow these steps to mount the antenna on a mast.

Step 1 Place one ¼-20 u-bolt around the mast, and place one support bracket on the u-bolt.

Step 2 Place the mounting plate on the u-bolt.

Step 3 Place two ¼-inch flat washers and ¼-20 nuts on the ends of the u-bolt. Tighten the nuts finger tight.

Step 4 Repeat steps 1 through 3 for the other u-bolt.

Step 5 Position the mounting plate on the mast in the direction the antenna should face and tighten the u-bolt

nuts with a 7/16-in. (11-mm) wrench.

1¼-20 u-bolt 4Mounting plate

2Support bracket 5#8-32 x 1-½ machine screws and screw cap

washers

3¼-in. flat washers and ¼-20 nuts 6Antenna cable

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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Installing the Antenna

Step 6 Position the antenna on the mounting plate.

Step 7 Place the screw cap washers onto the four #8-32 x 1-½-in. machine screws.

Step 8 Install the screws through the antenna mounting plate and install the #8 nuts.

Step 9 Tighten the #8 screws and nuts with a #2 Phillips screwdriver and an 11/32-in. (9-mm) wrench.

Caution Do not overtighten the nuts. You could damage the antenna.

Step 10 Install the screw caps onto the screw cap washers.

Step 11 Route the antenna cable to the wireless device.

Note Cisco recommends grounding the antenna. See the “Grounding the Antenna” section on page 11

for details.

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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Installing the Antenna

Installing the Articulated Mount

The antenna can also be mounted on an optional articulated mounting device as shown in Figure 2. The

articulated mount is used with the mast mount to provide a way to adjust the antenna elevation and

azimuth through a limited range.

Figure 2 Articulated Mount Details

1u-bolt 6Knuckle

2Support bracket 7Elevation adjustment bolt

3¼-20 nut and flat washer 8Stud nut

4Articulated mount base 9Stud

5Azimuth adjustment nut and lockwasher

Cisco Aironet 9.5-dBi Patch Antenna (AIR-ANT5195P-R)

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Installing the Antenna

Figure 2 shows the articulated mount installed on a mast. You can also install it on any suitable flat

surface.

Follow these steps to install the articulated mount on a mast:

Step 1 Place one ¼-20 u-bolt around the mast, and place one support bracket on the U-bolt.

Step 2 Place the articulated mounting base on the u-bolt.

Step 3 Place two ¼-in. flat washers and ¼-20 nuts on the ends of the u-bolt. Tighten the nuts finger tight.

Step 4 Repeat Steps 1 through 3 for the other u-bolt.

Step 5 Position the mounting plate on the mast in the direction the antenna should face and tighten the u-bolt

nuts with a 7/16-in. (11-mm) wrench.

Step 6 Use the elevation adjustment bolt to install the knuckle assembly on the articulated mount base.

Step 7 Install a lock washer and nut onto the elevation adjustment bolt. Tighten the nut finger tight.

Note You may want to install the antenna on its antenna mounting plate before proceeding to the next

step. If so, skip Step 10 of this procedure and perform Steps 6 through 9 in the “Mounting on a

Mast” section on page 7

Step 8 Position the antenna mounting plate on the articulating mount stud.

Step 9 Start the stud nut onto the articulating mount stud. Tighten the nut hand tight. Be careful not to

overtighten the nut as the stud is made of plastic.

Step 10 Install the antenna on the antenna mounting plate.

Step 11 Use the azimuth and elevation adjustments to fine tune the antenna’s azimuth and elevation.

Step 12 When the antenna is properly adjusted, use a 9/16 in. wrench to tighten the azimuth and elevation

adjustment nuts. Do not overtighten.

Step 13 Route the antenna cable to the wireless device.

Note Cisco recommends grounding the antenna. See the “Grounding the Antenna” section on page 11

for details.

Caution If you install additional lengths of antenna cable, be sure to install a suitable strain relief. The antenna

may be damaged if you do not eliminate the extra weight of the cable. The antenna is not designed to

support the weight of a cable longer than the installed 3-ft (91.4 cm) cable.

Antenna Cable Information

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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