Cisco Systems AIR-ANT5959 Stereo System User Manual

Cisco Aironet 2 dBi Diversity Omnidirectional
Ceiling Mount Antenna (AIR-ANT5959)
Overview
This document outlines the specifications and description of the 2-dBi diversity omnidirectional ceiling
mount antenna. This antenna operates in the 2400 - 2500 MHz band and is designed for use where an
unobtrusive ceiling mounted antenna is required. The antenna is compatible with Cisco Aironet radio
products utilizing a reverse-polarity threaded naval connector (RP-TNC) connector.
Antenna type
Omnidirectional
patch
Operating frequency range
2.4 - 2.5 GHz
Nominal VSWR
1.7:1
Peak gain
2 dBi
Polarization
Vertical, linear
Azimuth plane beamwidth
Omnidirectional
Elevation plane 3 dB
beamwidth
70 degrees
Cable
3 ft (0.9 mm) plenum
rated
Dimensions
5.3 x 2.8 x 0.9 in
(13.5 x 7.1 x 2.3 cm)
Weight
0.3 lbs. (0.14 kg)
Connector type
RP-TNC Male
Environment
Indoor, ceiling mount
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Copyright © 2002. Cisco Systems, Inc. All rights reserved.
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Technical Specifications
System Requirements
E-Plane Pattern
H-Plane Pattern
0
0
315
45
270
90
270
90
225
135
135
74649
225
45
74650
315
180
180
System Requirements
A 2.4-GHz Cisco device that utilizes a RP-TNC connector.
Installation Notes
Because 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:
•
Note
Mount the antenna to utilize its propagation characteristics. A way to do this is to orient the antenna
horizontally as high as possible at or near the center of its coverage area.
The antenna must be mounted horizontally in order to maximize its omnidirectional propagation
characteristics. Mounting it vertically may noticeably decrease the antenna’s range and overall
performance.
•
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.
– Solid and pre-cast concrete walls limit signal penetration to one or two walls without degrading
coverage.
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Installation Notes
– 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 off, causing poor penetration.
– A chain link fence or wire mesh spaced between 1 and 1 1/2 in. (2.5 and 3.8 cm) acts as a
harmonic reflector that blocks a 2.4 Ghz radio signal.
•
Install the antenna away from microwave ovens and 2-GHz cordless phones. These products can
cause signal interference because they operate in the same frequency range as the device to which
your antenna is connected.
•
Install the antenna horizontally to maximize signal propagation.
Installation Notes
This antenna is designed to be mounted indoors on a suspended ceiling track having either flush or
recessed mounted ceiling tiles.
Safety Instructions
Follow these safety instructions 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 cables 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 mounting location.
•
When installing your antenna, do not use a metal ladder. Do dress properly - shoes with rubber soles
and heels, rubber gloves, and a long sleeved shirt or jacket.
•
If an accident or emergency occurs with the power lines, call for qualified emergency help
immediately.
Installation Instructions
The following sections contain procedures for installing the antenna on a suspended ceiling.
Suspended Ceilings With Flush Mounted Tiles
The antenna is configured to mount to a suspended ceiling track with flush mounted tiles. No
modifications are necessary. After you have selected a suitable location, follow these steps to mount your
antenna. It may be helpful to examine the illustration below before you install the antennas.
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Installation Instructions
Mounting
clips
Ceiling
track
Side view
Top view
60287
Mounting
clip
Step 1
Remove the two ceiling tiles on either side of the ceiling track.
Step 2
Line up the antenna’s mounting clips with the track.
Step 3
Grasp the antenna with one hand and the track with the other while gently pushing the antenna until the
clips are securely attached to the track.
Step 4
Route the antenna cables into the space above the ceiling grid and connect them to the device or
extender cables.
Step 5
Replace the ceiling tiles.
Note
You may have to trim some material from one of the tiles to accommodate the antenna cables.
Suspended Ceilings With Recessed Tiles
The antenna can be mounted to a suspended ceiling with recessed tiles by using the provided plastic
recessed ceiling mounting clip adapter. After you have selected a suitable location, follow these steps to
mount your antenna.
Step 1
Remove two ceiling tiles on either side of the ceiling track.
Step 2
Mark a center point on the ceiling track at the location where you intend to mount the antenna.
Step 3
Mark a point 2 in. (6.3 cm) from either side of the center point. The distance between these two points
should be 5 in. (12.7 cm).
Step 4
Examine the adapter clips. One side has an elongated opening and a tab.
Step 5
Follow these steps to install a recessed ceiling mounting clip adapter at each point:
a.
Insert the side without the opening and tab onto the ceiling track.
b.
Push the tab to lock the other end onto the ceiling track.
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Installation Instructions
c.
Install the second adapter the same way you installed the first.
d.
Make sure that the adapters are 5 in. (12.7 cm) apart and the elongated openings are on the same
side of the ceiling track as shown in the following illustration.
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5 inches
Grasp the antenna with one hand and the track with the other while inserting the antenna’s mounting
clips into the ceiling mounting clip adapter until they can go no further as shown in the following
illustration.
Step 7
Route the antenna cables into the space above the ceiling grid and connect them to the device or
extender cables.
Step 8
Replace the ceiling tiles.
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Step 6
Note
You may have to trim some material from one of the tiles to accommodate the antenna cables.
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Obtaining Technical Assistance
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can
obtain documentation, troubleshooting tips, and sample configurations from online tools by using the
Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to
the technical support resources on the Cisco TAC Web Site.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open
access to Cisco information, networking solutions, services, programs, and resources at any time, from
anywhere in the world.
Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a
broad range of features and services to help you to
•
Streamline business processes and improve productivity
•
Resolve technical issues with online support
•
Download and test software packages
•
Order Cisco learning materials and merchandise
•
Register for online skill assessment, training, and certification programs
You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com,
go to the following URL:
http://www.cisco.com
Technical Assistance Center
The Cisco TAC is available to all customers who need technical assistance with a Cisco product,
technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC
Web Site and the Cisco TAC Escalation Center.
Inquiries to Cisco TAC are categorized according to the urgency of the issue:
•
Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities,
product installation, or basic product configuration.
•
Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably
impaired, but most business operations continue.
•
Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects
of business operations. No workaround is available.
•
Priority level 1 (P1)—Your production network is down, and a critical impact to business operations
will occur if service is not restored quickly. No workaround is available.
Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of
service contracts, when applicable.
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Obtaining Technical Assistance
Cisco TAC Web Site
The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The
site provides around-the-clock access to online tools, knowledge bases, and software. To access the
Cisco TAC Web Site, go to the following URL:
http://www.cisco.com/tac
All customers, partners, and resellers who have a valid Cisco services contract have complete access to
the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a
Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or
password, go to the following URL to register:
http://www.cisco.com/register/
If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com
registered, you can open a case online by using the TAC Case Open tool at the following URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC
Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority
level 2; these classifications are assigned when severe network degradation significantly impacts
business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC
engineer will automatically open a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following
URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
Before calling, please check with your network operations center to determine the level of Cisco support
services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network
Supported Accounts (NSA). In addition, please have available your service agreement number and your
product serial number.
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Obtaining Technical Assistance
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Copyright © 2002, Cisco Systems, Inc.
All rights reserved.
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