Extreme Networks Extreme Wireless Operating instructions

ExtremeWireless™External
Antenna with Wave 2
Site Preparation and Installation Guide
9034959
Published May 2016

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Table of Contents
About This Guide....................................................................................................................... 4
Intended Audience...............................................................................................................................................................4
Text Conventions...................................................................................................................................................................4
Providing Feedback to Us.................................................................................................................................................5
Getting Help.............................................................................................................................................................................5
Related Publications............................................................................................................................................................6
Chapter 1: AP Site Preparation................................................................................................. 7
ExtremeWireless Access Points that Support External Antennas................................................................7
Choosing Antennas for Wireless Network Configurations............................................................................... 7
Determining the Antenna Locations........................................................................................................................... 8
Antenna Models....................................................................................................................................................................12
Cable Options........................................................................................................................................................................15
Contacting an Antenna Installation Company...................................................................................................... 15
Chapter 2: ExtremeWireless APs That Support External Antennas..................................17
Determining the Location of the AP.......................................................................................................................... 17
ExtremeWireless AP3965e............................................................................................................................................. 17
ExtremeWireless AP3935e............................................................................................................................................. 18
ExtremeWireless AP3865e............................................................................................................................................. 19
ExtremeWireless AP3825e............................................................................................................................................ 20
ExtremeWireless AP3805e............................................................................................................................................. 21
Chapter 3: Antenna Installation............................................................................................. 23
Outdoor Antenna Kits...................................................................................................................................................... 23
Installation Overview.........................................................................................................................................................23
Grounding System............................................................................................................................................................. 24
Mounting the Antenna.....................................................................................................................................................24
Cable Installation Guidelines.........................................................................................................................................39
Routine Maintenance........................................................................................................................................................40
Chapter 4: Antenna Specifications........................................................................................ 41
External Antennas for Use with Outdoor APs...................................................................................................... 41
External Antennas for Use with Indoor APs......................................................................................................... 93
Chapter 5: Accessory Specifications...................................................................................140
Low-Loss Antenna Cables........................................................................................................................................... 140
Terminator: WS-CAB-RPSMATERM.........................................................................................................................144
Terminator: WS-CAB-NTERM.....................................................................................................................................144
Attenuators..........................................................................................................................................................................145
Extension Bracket: 30515 (WS-MB-WALLEXT01) ........................................................................................... 147
ExtremeWireless™ External Antenna with Wave 2 3

About This Guide
This guide describes the requirements for the successful installation of the ExtremeWireless external
antennas used in a wireless network. An ExtremeWireless network consists of access points, controllers,
antennas, and associated accessories.
Warning
Only qualified personnel should perform installation procedures.
Intended Audience
The ExtremeWireless external antennas must be installed by an antenna installation professional who
can determine, provide, and install the necessary support structure and grounding system. The antenna
installation professional should be licensed or certified in accordance with local regulations.
This preface provides an overview of this guide and a brief summary of each chapter; defines the
conventions used in this document; and instructs how to obtain technical support from Extreme
Networks.
Text Conventions
The following tables list text conventions that are used throughout this guide.
Table 1: Notice Icons
Icon Notice Type Alerts you to...
General Notice Helpful tips and notices for using the product.
Note Important features or instructions.
Caution Risk of personal injury, system damage, or loss of data.
Warning Risk of severe personal injury.
New This command or section is new for this release.
ExtremeWireless™ External Antenna with Wave 2 4

Table 2: Text Conventions
Convention Description
Screen displays This typeface indicates command syntax, or represents information as it appears on the
screen.
The words enter and
type
When you see the word “enter” in this guide, you must type something, and then press
the Return or Enter key. Do not press the Return or Enter key when an instruction
simply says “type.”
[Key] names Key names are written with brackets, such as [Return] or [Esc]. If you must press two
or more keys simultaneously, the key names are linked with a plus sign (+). Example:
Press [Ctrl]+[Alt]+[Del]
Words in italicized type Italics emphasize a point or denote new terms at the place where they are defined in
the text. Italics are also used when referring to publication titles.
Providing Feedback to Us
We are always striving to improve our documentation and help you work better, so we want to hear
from you! We welcome all feedback but especially want to know about:
•Content errors or confusing or conflicting information.
•Ideas for improvements to our documentation so you can find the information you need faster.
•Broken links or usability issues.
If you would like to provide feedback to the Extreme Networks Information Development team about
this document, please contact us using our short online feedback form. You can also email us directly at
[e-mail].
Getting Help
If you require assistance, contact Extreme Networks using one of the following methods:
•Global Technical Assistance Center (GTAC) for Immediate Support
•Phone: [phone] (toll-free in U.S. and Canada) or [phone]. For the support
phone number in your country, visit: www.extremenetworks.com/support/contact
•Email: [e-mail]. To expedite your message, enter the product name or
model number in the subject line.
•GTAC Knowledge — Get on-demand and tested resolutions from the GTAC Knowledgebase, or
create a help case if you need more guidance.
•The Hub — A forum for Extreme customers to connect with one another, get questions answered,
share ideas and feedback, and get problems solved. This community is monitored by Extreme
Networks employees, but is not intended to replace specific guidance from GTAC.
•Support Portal — Manage cases, downloads, service contracts, product licensing, and training and
certifications.
Before contacting Extreme Networks for technical support, have the following information ready:
•Your Extreme Networks service contract number and/or serial numbers for all involved Extreme
Networks products
•A description of the failure
About This Guide
ExtremeWireless™ External Antenna with Wave 2 5

•A description of any action(s) already taken to resolve the problem
•A description of your network environment (such as layout, cable type, other relevant environmental
information)
•Network load at the time of trouble (if known)
•The device history (for example, if you have returned the device before, or if this is a recurring
problem)
•Any related Return Material Authorization (RMA) numbers
Related Publications
ExtremeWireless and ExtremeWireless AP documentation can be found on Extreme Documentation
page at: http://documentation.extremenetworks.com
Extreme recommends the following guides for users of ExtremeWireless products:
•ExtremeWireless AP3912i Installation Guide
•ExtremeWireless AP3965i & AP3965e Installation Guide
•ExtremeWireless AP3935i & AP3935e Installation Guide
•ExtremeWireless AP3825i & AP3825e Installation Guide
•ExtremeWireless AP3805i FCC/ROW Installation Guide
•ExtremeWireless AP3801i Quick Reference Guide
•ExtremeWireless Appliance C5210 Quick Reference
•ExtremeWireless Appliance C5110 Quick Reference
•ExtremeWireless Appliance C4110 Quick Reference
•ExtremeWireless Appliance C25 Quick Reference
•ExtremeWireless Appliance C35 Quick Reference
•ExtremeWireless CLI Reference Guide
•ExtremeWireless End User License Agreements
•ExtremeWireless External Antenna Site Preparation and Installation Guide
•ExtremeWireless External Antenna with Wave 2 Site Preparation and Installation Guide
•ExtremeWireless Getting Started Guide
•ExtremeWireless Integration Guide
•ExtremeWireless Maintenance Guide
•ExtremeWireless Open Source Declaration
•ExtremeWireless User Guide
•IdentiFi Wireless WS-AP3865e Installation Guide
•IdentiFi Wireless WS-AP3825i & WS-AP3825e Installation Guide
•IdentiFi Wireless WS-AP3805i & WS-AP3805e Installation Guide
About This Guide
ExtremeWireless™ External Antenna with Wave 2 6

1AP Site Preparation
ExtremeWireless Access Points that Support External Antennas
Choosing Antennas for Wireless Network Configurations
Determining the Antenna Locations
Antenna Models
Cable Options
Contacting an Antenna Installation Company
This chapter describes the site requirements for the successful installation of ExtremeWireless antennas.
This information is intended for sales engineers or site evaluators.
Warning
Site prerequisites should be verified by a person familiar with national codes, local electrical
codes, and with other regulations governing this type of installation. Extreme Networks, its
channel partners, resellers, and distributors assume no liability for personal injury, property
damage, or violation of government regulations that may arise from failing to comply with the
instructions in this guide.
ExtremeWireless Access Points that Support External Antennas
Not all antennas listed in this document can be used by all wireless access points. If the name of the
access point ends with an "e", the access point supports external antennas. For example, the AP3935e
supports external antennas. For legacy access points, refer to ExtremeWireless™ External Antenna Site
Preparation and Installation Guide (P/N 9034559-09) to determine if your legacy access point supports
external antennas. Antenna Models identifies which antennas are supported by each AP.
Choosing Antennas for Wireless Network Configurations
The type and number of antennas that you need depend on the configuration of your wireless network.
The following table lists the general type of antenna to use for various wireless network configurations.
ExtremeWireless™ External Antenna with Wave 2 7

Table 3: Antennas for Wireless Network Configurations
Network Configuration Description Antenna Type
LAN-to-LAN Point-to-Point This is a wireless link between two WDS
APs that connects two separate wired
LANs. (WDS APs are configured to
operate as Workgroup bridges.)
Directional antennas
LAN-to-LAN Point-to-Multipoint In a point-to-multipoint network, up to
nine WDS APs provide wireless links to
connect up to nine LANs. One AP is
designated as the root (multipoint) AP
connected to a wired infrastructure. The
other APs are called child APs. Child APs
establish a backhaul connection with the
root AP and, at the same time, provide
LAN switching.
Omni-Directional antenna— to
which the root AP connects.
Directional antennas— to which
the child APs connect.
Wireless Infrastructure This is an inside/outside wireless
network where one or more WDS APs
are used to establish a wireless backhaul
and connect clients or LAN segments to
the wired LAN.
An Omni-Directional or a sectored
antenna.
Determining the Antenna Locations
The following factors determine the locations where you can place the antennas relative to one another
and the distances between them:
•Type of antennas. The ExtremeWireless antennas are described in Antenna Installation on page 23.
•Length of cable connecting the antenna to the AP.
•Data rate required.
•In a LAN-to-LAN network, the distance between the buildings.
•Obstructions in the signal path.
•In a wireless infrastructure network, the area around the antenna where clients need to
communicate with the AP.
Directional and omni-directional antennas are often installed on rooftops. The directional antenna can
also be installed on the side of a building. The following sections describe the factors that aect the
range of these antennas.
Line of Sight
The shape of the radio beam, defined as the Fresnel Zone, is widest in the middle. The Fresnel Zone is
shown as the gray area between the antennas in Fresnel Zone and Line of Sight Clearance. The exact
shape and width of the Fresnel Zone is determined by the distance between the antenna and frequency
of the radio signal.
The radius of the radio beam, shown as the lower half of the Fresnel Zone, is the distance from the
center of the beam outward in any direction. The length of the radius is not based on the data rate and
the type of antenna.
AP Site Preparation
ExtremeWireless™ External Antenna with Wave 2 8

Figure 1: Fresnel Zone and Line of Sight Clearance
The radius can be calculated using the following formula:
Where
D = Distance between the antennas in kilometers
f = Frequency in GHz
60% of the Fresnel Zone has to be clear of obstructions to be line of sight. In addition to the Fresnel
Zone height requirement, earth curvature may become a factor in paths longer than 2 Km. The
additional antenna height can be calculated using the following formula:
Where
D = Distance between the antennas in kilometers
H = Height required to overcome earth curvature
and Table 5 on page 10 lists typical antenna height requirements.
Table 4: Typical Antenna Height Requirements—2.4 GHz
Distance between Tx and
Rx antennas (km)
Fresnel Zone radius
(meters)
Earth curvature (meters) Minimum antenna height
requirements (meters)
2 7.9 0.08 7.98
5 12.5 0.49 12.99
10 17.67 1.94 19.61
15 21.64 4.37 26.01
AP Site Preparation
ExtremeWireless™ External Antenna with Wave 2 9

Table 4: Typical Antenna Height Requirements—2.4 GHz (continued)
Distance between Tx and
Rx antennas (km)
Fresnel Zone radius
(meters)
Earth curvature (meters) Minimum antenna height
requirements (meters)
20 25 7.77 32.77
25 28 12.14 40.14
30 30.6 17.48 48.08
Table 5: Typical Antenna Height Requirements—5 GHz
Distance between Tx and
Rx antennas (km)
Fresnel Zone radius
(meters)
Earth curvature (meters) Minimum antenna height
requirements (meters)
2 5.22 0.08 5.3
5 8.24 0.49 8.73
10 11.67 1.94 13.61
15 14.3 4.37 18.67
20 16.5 7.77 24.27
25 18.46 12.14 30.6
30 20.22 17.48 37.7
For optimal performance, ensure that the antenna products you choose, in combination with the height
of the antenna installation above ground, provide sucient clearance to allow your antenna installation
to cover the distance between the two sites.
Obstacles within the line of sight can significantly reduce the distance and performance. Obstructions
include neighboring buildings, trees, and power lines, as shown in the following figure:
AP Site Preparation
ExtremeWireless™ External Antenna with Wave 2 10