Juniper WLA620, WLA622, WLA632 Installation Manual

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Wireless LAN Access Point Hardware Installation Guide

Juniper Network, Inc. 1194 N. Mathilda Avenue Sunnyvale, CA 94089 USA 408-745-2000 www.juniper.net

Part Number: 730-9502-0285 Rev. C

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Juniper Networks, the Juniper Networks logo, NetScreen, NetScreen Technologies, the NetScreen logo, NetScreen-Global Pro, ScreenOS, and GigaScreen are registered trademarks of Juniper Networks, Inc. in the United States and other countries.

The following are trademarks of Juniper Networks, Inc.: ERX, ESP, E-series, Instant Virtual Extranet, Internet Processor, J2300, J4300, J6300, J-Protect, J-series, J-Web, JUNOS, JUNOScope, JUNOScript, JUNOSe, M5, M7i, M10, M10i, M20, M40, M40e, M160, M320, M-series, MMD, NetScreen-5GT, NetScreen-5XP, NetScreen-5XT, NetScreen-25, NetScreen-50, NetScreen-204, NetScreen-208, NetScreen-500, NetScreen-5200, NetScreen-5400, NetScreen-IDP 10, NetScreen-IDP 100, NetScreen-IDP 500, NetScreen-Remote Security Client, NetScreen-Remote VPN Client, NetScreen-SA 1000 Series, NetScreen-SA 3000 Series, NetScreen-SA 5000 Series, NetScreen-SA Central Manager, NetScreen Secure Access, NetScreen-SM 3000, NetScreen-Security Manager, NMC-RX, SDX, Stateful Signature, T320, T640, T-series, and TX Matrix. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. All specifications are subject to change without notice. Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.

Trademarks

The following are trademarks of Juniper Networks, Inc.: ERX, ESP, E-series, Instant Virtual Extranet, Internet Processor, J2300, J4300, J6300, J-Protect, J-series, J-Web, JUNOS, JUNOScope, JUNOScript, JUNOSe, M5, M7i, M10, M10i, M20, M40, M40e, M160, M320, M-series, MMD, NetScreen-5GT, NetScreen-5XP, NetScreen-5XT, NetScreen-25, NetScreen-50, NetScreen-204, NetScreen-208, NetScreen-500, NetScreen-5200, NetScreen-5400, NetScreen-IDP 10, NetScreen-IDP 100, NetScreen-IDP 500, NetScreen-Remote Security Client, NetScreen-Remote VPN Client, NetScreen-SA 1000 Series, NetScreen-SA 3000 Series, NetScreen-SA 5000 Series, NetScreen-SA Central Manager, NetScreen Secure Access, NetScreen-SM 3000, NetScreen-Security Manager, NMC-RX, SDX, Stateful Signature, T320, T640, T-series, and TX Matrix. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. All specifications are subject to change withou t notice. Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, tran sfer, or otherwise revise this publication without notice.

Disclaimer

All statements, specifications, recommendations, and technical information are current or planned as of the date of the publication of this document. They are reliable as of the time of this writing and are presented without warranty of any kind, expressed or implied. In an ef fort to continuously improve the product and add features, JuniperNetworks reserves the right to change any specifications contained in this document without prior notice of any kind.

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About This Guide

This guide details how to install a Juniper Networks Access Point (AP), models WLA620, WLA622, and WLA632, in a Juniper Networks Mobility System™ wireless LAN (WLAN). The WLA620, WLA622, and WLA632 are suitable for installation outdoors.

This guide is intended for

APs in a network.

Juniper Networks Mobility System

The Juniper Networks Mobility System is an enterprise WLAN solution that seamlessly integrates with an existing wired enterprise network. The Juniper Networks system provides secure connectivity to both wireless and wired users in large environments such as office buildings, hospitals, and university campuses.

The Juniper Networks Mobility System fulfills the three fundamental requirements of an enterprise WLAN: it eliminates the distinction between wired and wireless networks, allows users to work safely from anywhere (secure mobility), and provides a comprehensive suite of intuitive tools for planning and managing the network before and after deployment, greatly easing the operational burden on IT resources.

The Juniper Networks Mobility System consists of the following components:

 RingMaster tool suite—A full-featured graphical user interface (GUI) application

used to plan, configure, deploy, and manage a WLAN and its users

 One or more Wireless Lan Controller (WLC ) —Distributed, intelligent machines

for managing user connectivity, connecting and powering Mobility Point (MP) access points, and connecting the WLAN to the wired network backbone

 Multiple Mobility Point Acce ss Poi nts (AP™) —Wireless APs that transmit and

receive radio frequency (RF) signals to and from wireless users and connect them to an WLCswitch

 Mobility System Software™ (MSS™)—The operating system that runs all WLC

switches and APs in a WLAN, and is accessible through a comma nd-line interface (CLI), the Web View interface, or the RingMaster GUI

network administrators or others involved in installing

Documentation

The following documents provide information on how to plan, install, configure, and manage a Juniper Networks Mobility System.

Planning, Configuration, and Deployment

 RingMaster Configuration Guide — Instructions for configuring wireless services as

well as WLC appliances and APs on a WLAN. Read this guide to learn how to configure a WLAN network.

 RingMaster Management Guide — Instructions on how to manage and optimize the

entire WLAN with the RingMaster tool suite.

Installation

 WLC Hardware Installation Guide — Instructions and specifications for installing an

WLC.

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 Mobility System Software Quick Start Guide — Instructions for performing basic

setup of secure (802.1X) and guest (WebAAA™) access, and for configuring a Mobility Domain for roaming

 Wireless LAN Access Points Hardware Installation Guide (this document) —

Instructions and specifications for installing the WLA620, WLA622 and WLA632 APS and connecting it to an WLC.

 Regulatory Guide— Important safety instructions and compliance information that

you must read before installing Juniper Networks products.

Configuration and Management

 RingMaster Publication Suite — Instructions for planning, configuring, deploying, and

managing the entire WLAN with the RingMaster tool suite

 Mobility System Software Configuration Guide — Instructions for configuring and

managing the system through the MSS CLI

 Mobility System Software Command Reference — Functional and alphabetic

reference to all MSS commands supported on WLC appliances and APs

Juniper Networks Documentation Conventions

Safety and Advisory Notices

The following types of safety and advisory notices appear in this guide.

Caution: This situation or condition can lead to data loss or damage to the product or

other property.

Informational Note: This information you should note relevant to the current topic.

Caution: This alerts you to a possible risk of personal injury or major equipment

problems.

Hypertext Links

Hypertext links appear in Blue. As an example, this is a link to Contacting the Technical Assistance Center.

Text and Syntax Conventions

Juniper Networks guides use the following text and syntax conventions:

Convention Use

Monospace text Sets off command syntax or sample commands and system responses.

Bold text Highlights commands that you enter or items you select.

Italic text Designates command variables that you replace with appropriate values or highlights

publication titles or words requiring special emphasis.

Bold italic text font

Bold italic text font in narrative, capitalized or not, indicates a program name, func-

tion name, or string.

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Convention Use

Menu Name > Command Indicates a menu item. For example, File > Exit indicates that you select Exit from the File

menu.

[ ] (square brackets) Enclose optional parameters in command syntax. { } (curly brackets) Enclose mandatory parameters in command syntax. | (vertical bar) Separates mutually exclusive options in command syntax.

For information about Juniper Networks support services, visit http://www.juniper.net/, or call 1-866-877-9822 (in the US or Canada) or +1 925-474-2400.

Informational Note: Juniper Networks sells and services its products primarily through

its authorized resellers and distributors. If you purchased your product from an authorized Juniper Networks reseller or distributor and do not have a service contract with Juniper Networks, you must contact your local reseller or distributor for technical assistance.

Contacting the Technical Assistance Center

Contact the Juniper Networks Technical Assistance Center (TAC) by telephone, e-mail, or via web support portal.

 Within the US and Canada, call 1-866-TRPZTAC (1-866-877-9822).  Within Europe, call +31 35 64 78 193.  From locations outside the US and Canada, call +1 925-474-2400.  In non-emergencies, send e-mail to http://www.juniper.net/  If you have a service contract or are a Juniper Networks Authorized Partner, log in to

http://www.juniper.net/ to create a ticket online.

TAC Response Time

TAC responds to service requests as follows:

Contact method Priority Response time

Telephone Emergency One hour

Non-emergency Next business day

E-mail Non-emergency Next business day

Information Required When Requesting Service

To expedite your service request, please have the following information available when you call or write to TAC for technical assistance:

 Your company name and address  Your name, phone number, ce ll phone or pager number, and e-mail address  Name, model, and serial number of the product(s) requiring service  Software version(s) and release number(s)  Output of the show tech-support command  Wireless client information  License levels for RingMaster™ and Mobility Exchange™ (MX™) products  Description of any problems and status of any troubleshooting effort

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Warranty and Software Licenses

Current Juniper Networks warranty and software licenses are available at

http://www.juniper.net/.

Limited Warranty for Hardware and Software

TERMS AND CONDITIONS OF SALE

1. Software

Any software provided is licensed pursuant to the terms of Juniper Network’s Software License Agreement, an electronic copy of which is provided with the Software and a printed copy of which is available upon request. The terms and conditions of the Software License Agreement are incorporated herein in its entirety in this Terms and Conditions of Sale (“Terms and Conditions of Sale”) by this reference. The terms of the Software License Agr eement control, except for the limited warranty set forth below (“Limited Warranty”).

2. Limited Hardware Warranty Juniper, Inc. (“Juniper” or “Juniper”) warrants to Customer, subject to the limitation

and disclaimer below, that all Juniper Networks hardware will be free from defect s in material and workmanship under normal use as follows: (a) if the hardware was purchased directly from Juniper Networks, for a period of one (1) year after original shipment by Juniper Networks to Customer or (b) if the hardware was purchased from a Juniper Networks Authorized Reseller, for a period of one (1) year from the date of delivery to Customer, but in no event more than fifteen (15) months after the original shipment date by Juniper Networks (“Limited Hardware Warranty”). The date of original shipment from Juniper Networks will be determined by shipping evidence on file at Juniper Networks. This Limited Hardware W arr anty extends only to the Customer who was the original purchaser of the hardware and may not be transferred to any subsequent repurchasing entity. During the Limited Hardware Warranty period upon proper notice to Juniper Networks by Customer, Juniper Networks will, at its sole option, either:

 Repair and return of the defective hardware;  Replace the defective hardware with a new or refurbished component;  Replace the defective hardware with a different but similar component that

contains compatible features and functions; or

 Refund the original purchase price upon presentation of proof of purchase to

Juniper Networks.

3. Restrictions on the Limited Hardware Warranty. This Limited Warranty does not apply if hardware (a) is altered from its original

specifications, (b) is installed, configured, implemented or operated in any way that is contrary to its documentation, (c) has damage resulting from negligence, accident, or environmental stress, (d) was subject to unauthorized repair or modification or (e) is provided to Customer for pre-production, evaluation or charitable purposes.

4. Limited Software Warranty Juniper Networks warrants to Customer, subject to the limitation and disclaimer

below, that the software will substantially conform to its published specifications as follows: (a) if the software was purchased directly from Juniper Networks, for a period of ninety (90) days after original shipment by Juniper Networks to Customer or (b) if the software was purchased from a Juniper Networks Authorized Reseller, for a period of ninety (90) days from the date of delivery to Customer commencing not more than ninety (90) days after original shipment date by Juniper Networks), (“Limited Hardware Warranty”) . The date of original shipment from Juniper Networks

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will be determined by shipping evidence on file at Juniper Networks. This Limited Software Warranty extends only to the Customer of original purchaser of the software and may not be transferred to any subsequent repurchasing entity.

During the Limited Software Warranty period upon proper notice to Juniper Networks by Customer, Juniper Networks will, at its option, either:

 Use reasonable commercial efforts to attempt to correct or provide workarounds

for errors;

 Replace the software with functionally equivalent software; or  Refund to Customer the license fees paid by Customer for the software.

Juniper Networks does not warrant or represent that the software is error free or that the software will operate without problems or disruptions. Additionally, and due to the steady and ever-improving development of various attack and intrusion technologies, Juniper does not warrant or repr esent that any networks, systems or software provided by Juniper will be free of all possible methods of access, attack or intrusion.

5. Restrictions on the Limited Software Warranty This Limited Software Warranty does not apply if software (a) is altered in any way

from its specifications, (b) is installed, configured, implemented or operated in any way that is contrary to its documentation, (c) has damag e resulting from negligence, accident, or environmental stress, (d) was subject to unauthorized repair or modification, or (e) is provided to Customer for pre-production, evaluation or charitable purposes.

6. General Warranty Disclaimer EXCEPT AS SPECIFIED IN THIS LIMITED WARRANTY, ALL EXPRESS OR

IMPLIED CONDITIONS, REPRESENTATIONS, AND WARRANTIES INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY, FITNESS FOR A PARTICULAR APPLICATION OR PURPOSE, NONINFRINGEMENT, SATISFACTORY QUALITY OR ARISING FROM A COURSE OF DEALING, LAW, USAGE, OR TRADE PRACTICE, ARE HEREBY EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW. TO THE EXTENT AN IMPLIED WARRANTY CANNOT BE EXCLUDED, SUCH WARRANTY IS LIMITED IN DURATION TO THE AFOREMENTIONED WARRANTY PERIOD. BECAUSE SOME STATES, COUNTRIES OR JURISDICTIONS DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, THE ABOVE LIMITATION MAY NOT APPLY. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HA VE OTHER RIGHTS, WHICH V ARY FROM JURISDICTION TO JURISDICTION. THE LIMITED WARRANTY ABOVE IS THE SOLE REMEDY FOR ANY BREACH OF ANY WARRANTY WITH RESPECT TO THE HARDWARE AND SOFTWARE AND IS IN LIEU OF ANY AND ALL OTHER REMEDIES.

7. Limitation of Liabilities IN NO EVENT SHALL JUNIPER NETWORKS, ITS SUPPLIERS, OR ITS

AUTHORIZED RESELLERS BE LIABLE TO CUSTOMER OR ANY THRID PARTY FOR ANY LOST REVENUE, PROFIT, OR DATA, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL, OR PUNITIVE DAMAGES REGARDLESS OF HOW THOSE DAMAGES WERE CAUSED. NOR WILL JUNIPER NETWORKS, ITS SUPPLIERS, OR ITS AUTHORIZED RESELLERS BE LIABLE FOR ANY MONETARY OR PUNITIVE DAMAGES ARISING OUT OF THE USE OF, OR INABILITY TO USE JUNIPER NETWORKS HARDWARE OR SOFTWARE. JUNIPER NETWORK'S LIABILITY SHALL NOT EXCEED THE PRICE PAID BY THE CUSTOMER FOR ANY HARDWARE OR SOFTWARE COVERED UNDER THE TERMS AND CONDITIONS OF THIS WARRANTY. THIS LIMITATION OF LIABILITY AND RESTRICTION ON DAMAGES APPLIES WHETHER IN

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CONTRACT, TORT, NEGLIGENCE, OR OTHERWISE, AND SHALL APPLY EVEN IF THE LIMITED WARRANTY F AILS OF ITS ESSENTIAL PURPOSE. W ARRANTY LAWS VARY FROM JURISDICTION TO JURISDICTION, AND THE ABOVE LIMITATIONS AND EXCLUSION OF CONSEQUENTIAL AND INCIDENTAL DAMAGES MAY NOT APPLY TO YOU, DEPENDING UPON YOUR STATE, COUNTRY OR JURISDICTION.

8. Procedures for Return of Hardware or Software under the Limited Warranty Where repair or replacement is required under the Limited Warranty, Customer will

contact Juniper Networks and obtain a Return Materials Authorization number (“RMA Number”) prior to returning any hardware and/or software, and will include the Juniper Network’s RMA Number on all packaging. Juniper Networks will ship repaired or replacement components within a commercially reasonable time after receipt of any hardware and/or sof tware returne d for the Li mited Warranty purposes to the address provided by Customer. Customer will pay freight and handling charges for defective return to the address specified by Juniper Networks and Juniper Networks will pay freight and handling charges for return of the repair or replacement materials to Customer.

9. Miscellaneous The Limited Warranty shall be governed by and construed in accordance with the

laws of the Sta te of California without reference to that State's conflict of laws rules and as if the contract was wholly formed within the State of California. Customer agrees that jurisdiction and venue shall be in Santa Clara County, California. Under no circumstances shall the United Nations Convention on the International Sale of Goods be considered for redress of grievances or adjudication of any warranty disputes that include Juniper Networks hardware or software. If any provision of these Terms and Conditions of Sale are held invalid, then the remainder of these Terms and Conditions of Sale will continue in full force and effect. Where a Customer has entered into a signed contractual agreement with Juniper Networks for supply of hardware, software or services, the terms of that agreement shall supersede any terms contained within this Limi ted W arranty. Customer understands and acknowledges that the terms of this Limited Warranty, as well as material information regarding the form, function, operation and limitations of Junip er Networks hardware and software will change from time to time, and that the most current revisions will be publicly available at the Juniper Networks corporate web site (www.juniper.net).

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Ta b le of Co n te n t s

Chapter 1 WLA620, WLA622 and WLA632 Overview

Hardware Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

WLA620 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

WLA622 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

WLA632 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Package Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

External Hardware Features for the WLA620 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

External Antenna Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Ethernet Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Power Injector Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Receive Signal Strength Indicator (RSSI) BNC Connector. . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Grounding Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Wall- and Pole-Mounting Bracket Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Lightning Protector for Outdoor Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

External Hardware Features for the WLA622 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

External Antenna Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Ethernet Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Power Injector Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Grounding Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10

Water Tight Test Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Wall- and Pole-Mounting Bracket Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Lightning Protector for Outdoor Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11

External Hardware Features for the WLA632 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

External Antenna Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Multiple External Antenna Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

High Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16

Chapter 2 WLA Series Network Configurations

Infrastructure Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

WLAN Mesh Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Wireless Bridge Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

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Table of Contents

Chapter 3 Installing and Connecting an Access Point

Installation Requirements and Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

RingMaster Network Plan and Work Orders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

WLC Appliance Recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Weather Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Ethernet Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

WLA Radio Safety Advisories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Installing an WLA620. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Mounting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Connecting External Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Connecting Cables to the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

Connecting the Outdoor Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

Connecting a WLA to a WLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Aligning Antennas for Bridge or Mesh Links. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Installing an WLA622. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

Mounting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

Connecting External Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Connecting Cables to the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Connecting the Outdoor Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Connecting the Power Injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Checking the LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Connecting a WLA to a WLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Aligning Antennas for Bridge or Mesh Links. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Installing an WLA632. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Mounting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Connecting External Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Multiple External Antenna Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

High Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29

Connecting Cables to the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30

Connecting the Power Injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30

Connecting an WLA to an WLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Chapter 4 WLA Series Technical Specifications

Outdoor AP Mechanical and Compliance Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Federal Communication Commission Interference Statement . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Industry Canada Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

MAC Addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Antenna Specifications for WLA620 and WLA622. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

8 dBi Omnidirectional (2.4 GHz). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

8 dBi Omnidirectional (5 GHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

13.5 dBi 120-Degree Sector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

10 dBi 120-Degree Sector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

18 dBi 18-Degree Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Signal Loss from Lightning Protector and Coaxial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

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Antenna Specifications for WLA632 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

High-Power Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Supported Antennas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

WLA632 Mechanical and Compliance Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

RSSI Meter Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Chapter 5 Cables and Pinouts

Twisted-Pair Cable Assignments for the WLA620 and WLA622. . . . . . . . . . . . . . . . . . . . . . . 5-1

10/100BASE-TX Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Straight-Through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

8-Pin DIN Connector Pinout for the WLA620 and WLA622. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

8-Pin DIN to RJ-45 Cable Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

WLA632 External Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4

Chapter 6 Wireless Bridge Link Planning

Radio Path Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Antenna Height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Radio Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Weather Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Ethernet Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

WLA622 Antenna Position and Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

WLA Radio Safety Advisories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

iii

Page 12

Table of Contents

Page 13

WLA620, WLA622 and WLA632 Overview

 A Juniper Networks model WLA620 provides IEEE 802.11 wireless access to the network.

WLAs are designed for use with a Juniper Networks WLAN controller. WLAs require hardware installation only. All configuration for an WLA is performed on the WLC.

Warning: Installation must be performed by qualified service personnel only. Read and

follow all warning notices and instructions marked on the product or included in the documentation. Before installing the product, read the Regulatory Guide document.

Informational Note: The WLA radios are disabled by default and can be enabled only by

a system administrator using the WLC.

Hardware Overview

WLA620

The WLA620 provides wireless access point services for clients in the local LAN ar ea, and can provide point-to-point or point-to-multipoint wireless bridge links between remote Ethernet LANs. The WLA is housed in a weatherproof enclosur e for mo untin g outdoors and includes brackets for attaching to a wall, pole, radio mast, or tower structure. The unit is powered through an Ethernet cable connection from a power injector module installed indoors. The WLA620 provides a 54 Mbps half-duplex connection for each active channel.

A wireless bridge system offers a solution for connectivity between remote Ethernet wired LANs, or to provide Internet access to an isolated site where a wired link may be difficult or expensive to deploy. The wireless bridge connection provides data rates of up to 108 Mbps.

Radio Characteristics – The IEEE 802.11a and 802.11g standards use a radio modulation technique known as Orthogonal Frequency Division Multiplexing (OFDM), and a shared collision domain (CSMA/CA). The 802.11a standard operates in the 5 GHz Unlicensed National Information Inf ra str uc tu re (UNII ) ba nd , an d th e 80 2. 11g standard in the 2.4 GHz band.

IEEE 802.11g includes backward compatibility with the IEEE 802.11b standard. IEEE

802.11b also operates at 2.4 GHz, but uses Direct Sequence Spread Spectrum (DSSS) and Complementary Code Keying (CCK) modulation technology to achieve a communication rate of up to 11 Mbps.

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WLA620, WLA622 and WLA632 Overview

WLA622

The WLA622 provides only external antenna options and is designed to operate as the “root bridge” in point-to-multipoint configurations, supporting wireless bridge connections to as many as six units. The WLA is housed in a weatherproof enclosure for mounting outdoors and includes brackets for att aching to a wall, pole, radi o mast, or tower structure. The wireless bridge connection provides data rates of up to 54 Mbps. A WLC cannot be used to power the outdoor WLA. The WLA requires a Juniper-designed XPS power supply for proper operation.

WLA632

The WLA632 is a 802.11a/b/g/n WLA that is designed for pole-mounting and wall mounting. The WLA632 supports 6 antenna ports, 3 for the 11a/n radio and 3 for the 11b/g/ n ra dio . A nt en na s ot he r than Juniper approved antennas are not supported. The WLA632 does not support internal antennas or PoE. A WLC cannot be used to power this WLA. A WLA-XPS9001GO power supply that uses the IP67 multi-pin DIN connector is required. The WLA-XPS9001GO is specifically designed for the WLA632 and is available from Juniper Networks.

WLA-XPS9001GO Power Supply Unit

The WLA-XPS9001GO PSU has separate SKUs for North American and International users.

WLA-XPS9001GO-NA— An outdoor 802.3at compliant, 100-240 VAC 50-60Hz input, Gigabit PoE midspan PSU with a North American connector that ships with the mounting bracket. This PSU and NA connector is intended for u se in countries following North America Safety Standards.

WLA-XPS9001GO-INTL— An outdoor 802.3at compliant, 100-240 VAC 50-60Hz input, Gigabit PoE midspan PSU with a International power cord. This PSU and international power cord is intended for use in world-wide opera tio ns except countries following North America Safety Standards.

Warning: The WLA632 must only be used with a Juniper Networks approved

WLA-XPS9001GO power supply in order to prevent possible damage to the unit. The WLA-XPS9001GO power supply is intended for indoor and outdoor environments.

Package Checklist

The WLA620 package includes:

 1 WLA620  1 Category 5 network cable, length 50 m (164 ft)  1 power injector module and power cord  Outdoor pole-mounting bracket kit  Installation manual  Optional: 2 N-type RF coaxial cables  Optional: Outdoor wall-mounting bracket kit  Optional: Lightning protector for outdoor antenna

The WLA622 package includes:

 1 WLA622  WLA-XPS9001GO (packaged in a separate box)

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WLA620, WLA622 and WLA632 Overview

Ethernet Port

RSSI Connector with Protective Cap

Grounding Point Screw

 Installation manual  Optional: Lightning protector for outdoor antenna

The WLA632 package includes:

 1 WLA632  Mounting brackets, split washers and mounting hardware  Weather sealing caps for all 6 external antenna connectors  Installation manual  1 WLA-XPS9001GO outdoor power supply.  Circular DIN to RJ45 dongle cable and waterproof caps for RJ45 dongle  Two-hole tabular lug for AWG #8 ground cable  Antenna connector terminator. Any unused antenna connector on an active radio

must be terminated.

Contact Juniper Networks if there are any incorrect, missing or damaged parts. If possible, retain the carton, including the original packing materials. Use them again to repack the product in case there is a need to return it.

External Hardware Features for the WLA620

Figure 1–1 and Figure 1–2 below show the external hardware features of the WLA620. Figure 1–1. WLA Model WLA620—Bottom View

Figure 1–2. WLA Model WLA620—Top View

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WLA620, WLA622 and WLA632 Overview

N-Type External Antenna Connector (2.4 GHz)

N-Type External Antenna Connector (5 GHz)

External Antenna Options

The WLA620 unit does not include an integra ted antenna, but provides various external antenna options for both 5 GHz and 2.4 GHz operation. The WLA620 unit requires the

2.4 GHz 8 dBi omnidirectional external antenna for 2.4 GHz operation. The following table summarizes the external antenna options:

Table 1: External Antenna Options

HPBW*

Antenna Type Gain (dBi)

5 GHz Omnidirectional 8 360 12 Linear, vertical

5 GHz 120-Degree Sector 13.5 120 6 Linear, vertical

5 GHz 18-Degree Panel 18 18 18 Linear, vertical

2.4 GHz 120-Degree Sector 10 120 15 Linear, vertical

2.4 GHz Omnidirectional 8 360 15 Linear, vertical

* Half-power beam width in degrees

Horizontal

HPBW* Ver ti ca l

Polarization

External antennas connect to the N-type RF connectors on the WLA620 using the provided coaxial cables.

Ethernet Port

The WLA620 has one 10BASE-T/100BASE-TX 8-pin DIN port that connects to the power injector module using the included Ethernet cable. The Ethernet port connection provides power to the WLA620 as well as a data link to the local network.

Informational Note: The power injector module does not support Power over Ethernet

(PoE) based on the IEEE 802.3af standard. The WLA620 must always be powered on by being connected to the power injector module.

Power Injector Module

The WLA620 receives power through the network cable connection using power-over-Ethernet technology. A power injector module is included in the WLA620 package and provides two RJ45 Ethernet ports, one for connec tin g to th e WLA620 (Output), and the other for connecting to a WLC switch or a local LAN switch (Input).

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WLA620, WLA622 and WLA632 Overview

Input Output

LED Indicator

Ethernet from Local Network

Ethernet and Power to MP-620

AC Power Socket (Hidden)

The Input port uses an MDI (i.e., internal straight-through) pin configuration. You can therefore use straight-through twisted-pair cable to connect this port to most network interconnection devices such as a switch or router that provide MDI-X ports. However, when connecting the access point to a workstation or other device without MDI-X ports, you must use crossover twisted-pair cable.

Figure 1–3. Power Injector Module

The WLA620 does not have a power switch. It is powered on when the Ethernet port is connected to the power injector module, and the power injector module is connected to an AC power source. The power injector includes one LED indicator tha t turns on when AC power is applied.

The power injector module automatically adjusts to any AC voltage between 100-240 volts at 50 or 60 Hz. No voltage range settings are required.

Warning: The power injector module is designed for indoor use only. Never mount the

power injector outside with WLA620 unit.

Receive Signal Strength Indicator (RSSI) BNC Connector

The RSSI connector provides an output voltage that is proportio nal to the received radio signal strength. A DC voltmeter can be connected the this port to assist in aligning the antennas at both ends of a wireless bridge link.

Grounding Point

Even though the WLA620 includes a built-in lightning protection, it is important that the unit is properly connected to ground. A grounding screw is provided for attaching a ground wire to the unit.

Wall- and Pole-Mounting Bracket Kits

The WLA620 includes bracket kits that can be used to mount the unit to a wall, pole, radio mast, or part of a tower structure.

Lightning Protector for Outdoor Antenna

If you are using the WLA620 with an outdoor antenna, Juniper Networks recommends installing an external lightning protector for the antenna. An external lightning protector may be obtained from Juniper Networks.

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WLA620, WLA622 and WLA632 Overview

Indoor Outdoor

LAN Switch

AC Power

Power Injector

WLA620 Unit

GroundWire

EthernetCable EthernetCable

E xternal A ntenna

RF C oaxial Cable

Lightning Protector

System Configuration

At each location where an WLA620 unit is installed, it must be connected to the local network using the power injector module. The following figure illustrates the system component connections.

Features and Benefits

The WLA620 provides the following features and benefits:

 The WLA620 supports access point services for the 5 GHz and 2.4 GHz radios using

various external antenna options

 Maximum data rate up to 108 Mbps on the 802.11a (5 GHz) radio  Outdoor weatherproof design  IEEE 802.11a and 802.11b/g compliant  Local network connection via 10/100 Mbps Ethernet port  Powered through its Ethernet cable connection to the powe r inje cto r m odule  Includes wall- and pole-mount brackets  Security through 64/128/152-bit Wired Equivalent Protection (WEP) or 128-bit

Advanced Encryption Standard (AES) encryption

 Scans all available channels and selects the b est channel and data rate based on the

signal-to-noise ratio

Figure 1–4. System Component Connections

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WLA620, WLA622 and WLA632 Overview

Port 1

Port 2

Port 3 Port 4

External Hardware Features for the WLA622

Figure 1–5. MP Access Point Model WLA622—Bottom View

Figure 1–6. Access Point Model WLA622—Top View. Antenna ports are numbered from the left 1 to 4.

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WLA620, WLA622 and WLA632 Overview

Power

Link

11a

11b/g

Power

802.11a Wireless Link/Activity

Ethernet Link/Activity

802.11b/g Wireless Link/Activity

LED Indicators

The LEDs are used for RSSI signal strength measurements to aim directional antennas and to indicate the state of the WLA. The access point includes eight status LED indicators, as shown below . The LEDs are viewed right to le f t as you look a t the ba ck of the WLA.

The table below describes the system status LEDs.

Table 2: External Antenna Options

LED Status Description

Power Green Indicates that the system is working normally.

Amber Indicates a system reset.

Off The bridge is not receiving power or there is a fault with the power supply.

Link Green Indicates a valid 10/100 Mbps Ethernet cable link with no activity.

Flashing Green Indicates that the access point is transmitting or receiving data on a

10/100 Mbps Ethernet LAN. Flashing rate is proportional to network activity.

Off No link is present or the Ethernet LAN port is disabled.

The 1 1 a and 11b/g LEDs operate in two display modes, which are configurable through the management interface. The RSSI mode is for aligning antennas in a b ridge link. The WLA mode is for indicating data traffic rates.

The table below describes the wireless status LEDs in WLA mode.

Table 3: Wireless Status LEDs in WLA Mode

LED Status Description

11a (three LEDs) Slow Flashing

Green

Fast Flashing Green

Green Indicates a high level of network activity.

Off No signal detected or the 802.11a radio is disabled.

The 802.11a radio is enabled with a low level of network activity.

Indicates a medium level of network activity.

Page 21

Table 3: Wireless Status LEDs in WLA Mode

LED Status Description

11b/g

(three LEDs)

Slow Flashing Amber

Fast Flashing Amber

Off No signal detected or the 802.11b/g radio is disabled.

The 802.11b/g radio is enabled with a low level of network activity.

Indicates a medium level of network activity.

The table below describes the wireless status LEDs in RSSI mode.

Table 4: Wireless Status LEDs in RSSI Mode

LED Status Description

11a

(three LEDs)

11b/g

(three LEDs)

Off No signal detected or the 802.11a radio is disabled.

Slow Flashing Green

Fast Flashing Green

On Green Indicates a high level signal.

Off No signal detected or the 802.11b/g radio is disabled.

Slow Flashing Green

Fast Flashing Green

The 802.11a radio is enabled with a low level signal.

Indicates a medium level signal.

The 802.11b/g radio is enabled with a low level signal.

Indicates a medium level signal.

WLA620, WLA622 and WLA632 Overview

External Antenna Options

The WLA622 supports one or two antennas per radio. If there are two antennas connected to the radio then antenna diversity is used to send all traffic types. If there is one antenna then proper operations of antenna diversity may be affected.

By default there is one external antenna so there will be no use of antenna diversity for WLAs with external antennas defined. The setting below is applied per radio so you can have one radio indoors and one radio outdoors.

set ap num radio num external-antennas num

Informational Note: This is a new command, and it is only supported in MSS 7.1 or higher.

Caution: The splitting of antennas on a single radio between indoors and outdoors is not

allowed.

The WLA622 supports one or two antennas per radio. If there are two antennas they must be the same antenna model. A single antenna will always be connected to the connector 1 for 2.4 GHz and connector 3 for 5Ghz.

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WLA620, WLA622 and WLA632 Overview

The WLA622 supports four antenna ports, two for the 11a radio and two for the 11bg radio. The supported antennas models are:

 802.11bg Radio

 ANT-1120-OUT  ANT-1360-OUT

 802.11a Radio

 ANT-5120-OUT  ANT-5360-OUT  ANT-5PNL-OUT (for single antenna only for use on port 3)

External antennas connect to the N-type RF connectors on the wireless bridg e either directly or using coaxial cables.

Ethernet Port

The wireless bridge has one 10BASE-T/100BASE-TX 8-pin DIN port that connects to the power injector module using the included Ethernet cable. The Ethernet port connection provides power to the wireless bridge as well as a data link to the local network.

The wireless bridge appears as an Ethernet node and performs a bridging function by moving packets from the wired LAN to the remote end of the wireless bridge link.

Informational Note: The power injector module does not support Power over Ethernet

(PoE) based on the IEEE 802.3af standard. The wireless bridge unit must always be powered on by being connected to the power injector module.

Power Injector Module

The WLA622 receives power through the network cable connection using Power-over-Ethernet (PoE) technology. An outdoor power injector module is available seperately and provides two RJ45 Etherne t ports, one for conn ecting to the WLA622 (PoE Output), and the other for connecting to an WLC or a local LAN switch Data (Input).

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WLA620, WLA622 and WLA632 Overview

Ground Wire

Ethernet Cabl e

To MP-622

Figure 1–7. Power Injector Module

The WLA622 does not have a power switch. It is powered on when the Ethernet port is connected to the power injector module, and the power injector module is connected to an AC power source.

The power injector module automatically adjusts to any AC voltage between 100-240 volts at 50 or 60 Hz. No voltage range settings are required.

Caution: The power injector module is designed for indoor use.

Grounding Point

In order for the WLA622 includes a built-in lightning protector to work properly, the unit must be properly connected to ground. A grounding screw is provided for attaching a ground wire to the unit.

Water Tight Test Point

Caution: Do not remove or loosen this screw. If you do, you can damage the unit.

Wall- and Pole-Mounting Bracket Kits

The WLA622 includes bracket kits that can be used to mount the unit to a wall, pole, radio mast, or part of a tower structure.

Lightning Protector for Outdoor Antenna

If you are using the WLA622 with an outdoor antenna, Juniper Networks strongly recommends installing an external lightning protector for the antenna. An external lightning protector may be obtained from Juniper Networks.

System Configuration

At each location where an WLA622 unit is installed, it must be connected to the local network using the power injector module. The following figure illustrates the system component connections.

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WLA620, WLA622 and WLA632 Overview

LAN Switch

Indoor Out

door

AC Power

Power Injector

WLA622 Unit

Ground Wire

Ethernet Cable Ethernet Cable

External Antenna

RF Coaxial Cable

Lightning Protector

Figure 1–8. System Component Connections

Features and Benefits

The WLA622 provides the following features and benefits:

 The WLA622 supports access point services for the 5 GHz and 2.4 GHz radios using

various external antenna options

 WLA622 units support 5 GHz point-to-multipoint links using various external

Juniper-supplied antenna options

 Maximum data rate up to 54 Mbps on the 802 .11a (5 GHz) radio  Outdoor weatherproof design  IEEE 802.11a and 802.11b/g compliant  Local network connection via 10/100 Mbps Ethernet port  Powered through its Ethernet cable connection to the powe r inje cto r m odule  Includes wall- and pole-mount brackets  Security through 64/128/152-bit Wired Equivalent Protection (WEP) or 128-bit

Advanced Encryption Standard (AES) encryption

 Scans all available channels and selects the b est channel and data rate based on the

signal-to-noise ratio.

Manageable through an easy-to-use web-browser interface, command line (via Telnet), or SNMP network management tool.

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WLA620, WLA622 and WLA632 Overview

2.4GHz

Antenna Ports

LEDs

5GHz

Antenna Ports

Power

Ethernet Port

External Hardware Features for the WLA632

Page 26

WLA620, WLA622 and WLA632 Overview

Informational Note: Two separate cables are required for power and ethernet function

on the WLA632. Both the cable dongles are RJ45 on one end, but one cable is specific to power and one is specific to data. If the RJ45 cable ends are swapped, the unit will not power up but will not be damaged. If the RJ45 cable ends are correctly inserted, the unit will function normally.

LED Indicators

The WLA632 has LEDs that provide status information for the device. The table below lists the function of the LEDs.

Table 5: WLA632 LED Functions

LED Status Description

Health Solid green All the following are true:

Solid amber WLA is waiting to receive boot instructions and a configuration file from an

Alternating green and amber

Radio 1 /Radio 2 Solid green A client is associated with the radio.

Blinking green Associated client is sending or receiving traffic.

Blinking amber Non-associated client is sending or receiving traffic.

Alternating green and amber

Unlit Means one of the following:

 Management link with an WLC is operational.

 WLA has booted.

 WLA has received a valid configuration from an WLC.

 At least one radio is enabled or is in sentry mode.

WLC.

WLA is booting and receiving a configuration file from an WLC.

After the MP boots and receives a configuration, this LED appearance persists until a radio is enabled or is placed in sentry mode.

Radio is unable to transmit. This state can occur due to any of the following:

 Excessive radio interference in the environment is preventing the radio

from sending beacons.

 DFS has detected radar and is restricting traffic.

 The radio has failed.

 Radio is disabled and active scan is enabled. (The radio is in sentry

mode.)

 Radio is enabled, but no clients are associated with it.

External Antenna Options

The WLA632 supports six antenna ports, 3 for the 11a/n radio and 3 for the 11b/g/n radio. The 3 802.11 b/g/n antenna ports are on the top of the WL A an d a re nu mbe re d 1 to 3 from left to right. The 3 802.11a/b/g/n antenna ports are on the bottom of the WLA with the ethernet and power ports. The antenna ports are numbered 4 to 6 from left to right with port 4 on the outside edge of the RJ45 ethernet port.

The supported antennas models are:

 802.11bgn Radio

 ANT-7360A-OUT (N-type female connector)  ANT-77555-OUT (3 RPSMA- male connector)  ANT-74520-OUT (3 RPSMA- male connector)

Page 27

WLA620, WLA622 and WLA632 Overview

 802.11an Radio

 ANT-7360A-OUT (N-type female connector)  ANT-74520-OUT (3 RPSMA- male connector)  ANT-77555-OUT (3 RPSMA- male connector)  ANT-5007-OUT (2-N-type connector)

The port usage depends on the antennas in use. If the OMNI antennas are used there must be 3 antennas installed for the radio. If the ANT-5007-OUT antenna is used then the two edge ports must be connected to the antenna (ports 4 and 6). The middle port will be turned off by the software and should be terminated. If either the ANT-77555 or 74520 are used all three connectors must be connected to the WLA for the correct radio. (A RPSMA N-type adaptor is required.)

set ap apnum radio num antennatype {ANT-7360A-OUT | ANT 77555-OUT | ANT

74520-OUT | ANT-5007-OUT} …

The antenna-location must be either indoors or outdoors. Although this is an outdoor WLA it may be used indoors.

set ap apnum radio # antenna-location {indoors | outdoors}

Informational Note: Splitting the antennas between indoors and outdoors on the same

radio band is not allowed.

Multiple External Antenna Support

The WLA632 supports the use of multiple antenna ports per radio. Since there are always multiple antennas connected, antenna diversity is always on. The command to set the number of external antennas does not apply to the WLA632. The number of antenna ports in use is determined by the antenna type.

set ap num radio num external-antennas num

If the ANT-5007-OUT antenna is in use on the 11a/n radio then the radio configuration will revert to 2 x 3 mode rather than 3 x 3 mode and the middle port for the radio must not be used.

Ethernet

The WLA632 supports a single IEEE 802.3-compliant auto-sensing 10/100/1000 BaseT Ethernet interface on the Ethernet input connector. The WLA is configured as auto MDI/MDIX. The WLA632 is powered from the WLA-XPS9001GO power supplies.

Caution: The WLA622 and WLA632 must only be used with a Juniper

Networks-approved WLA-XPS9001GO outdoor power supply in order to prevent possible damage to the unit.

Caution: The 10/100 data port on the XPS is not used.

Page 28

WLA620, WLA622 and WLA632 Overview

Caution: If you convert the 8 pin female circular DIN data port on the WLA632 bulkhead

to a standard RJ45 waterproof connection for the 10/100/1000 data port, PoE on the 10/100/1000 port must be disabled to prevent service interruption.The WLA632 does not support PoE on the 10/100/1000 Ethernet data port.

Caution: Always add the waterproof cap to the RJ45 cable when installing the DIN-RJ45

dongle. Water can cause damage to the unit and the cables.

The WLA632 48VDC / Ethernet inputs provides primary and secondary lightning protection up to 4KV on all conductors.

The Ethernet interface supports a cable length of up to 100m over CAT5e or CAT6 cable.

Grounding Point

Caution: Always ground the unit first with an appropriate grounding wire (not included)

by attaching it to the grounding screw on the unit.

The WLA632 has a two-hole grounding boss with threaded screws and washers for direct electrical connection to earth ground. The two-hole tubular lug can be crimped (standard crimp tool is required) on a AWG #8 copper wire for grounding.

Water Tight Test Point

Caution: Do not remove or loosen the pressure balance plug on the side of the unit. If you

do, you can damage the unit.

Wall- and Pole-Mounting Bracket Kits

The WLA632 includes bracket kits that can be used to mount the unit to a wall, pole, radio mast, or part of a tower structure.

Lightning Protector for Outdoor Antenna

If you are using the WLA632 with an outdoor antenna, Juniper Networks strongly recommends installing an external lightning protector for the antenna. An external lightning protector may be obtained from Juniper Networks.

System Configuration

At each location where an WLA632 unit is installed, it must be connected to the local network but the power injector is not required. The following figure illustrates the system component connections.

Page 29

WLA620, WLA622 and WLA632 Overview

LAN Switch

Indoor

Outdoor

WLA632

Ethernet Cable Ethernet Cable

External Antenna

RF Coaxial Cable

Lightning Protector

Ground Wire

WLA-XPS9001GO

CAT-5 cabling with appropriate adapters

AC Power Outlet

Figure 1–9. System Component Connections

Features and Benefits

The WLA632 provides the following features and benefits:

 802.11 a/b/g/n Features  High performance 11 Mbps (802.11b) or 54Mbps (802.11a/g) or 300Mbps(802.11n)

data rate

 Wi-Fi, WPA interoperability ready  WPA/WPA2 with PSK/802.1x with TKIP/AES  40-bit and 128-bit WEP  Seamless roaming within the IEEE 802.11 a/b/g/n WLAN infrastructure.  Adjustable output power support  Interoperability with Juniper Networks Wireless Security Switch  Auto-sensing 10/100/1000 Ethernet port with auto MDI/MDI-X but has no PoE

support on the 10/100/100 (data) port

 Comply with IEEE 802.3, 802.3u and 802.3ab  Powered by 30W/48Vdc outdoor AC/DC power supply.

Page 30

WLA620, WLA622 and WLA632 Overview

Page 31

WLA Series Network Configurations

Client

Backbone

MX-216

WLC

Campus Building

This chapter illustrates network configurations supported for the Juniper Networks WLAs.

Infrastructure Configuration

In an infrastructure topology , th e WLA620, WLA622, and WLA632 provide access to a wired LAN for 802.11a/b/g wireless workstations (802.11 a/b/g/n with WLA632 only). The WLA620, WLA622 and WLA632 have weatherproof casing and can be installed outdoors (for example, on a pole) to provide network access to clients located outside.

Figure 2–1. Infrastructure Topology with Outdoor WLA

The WLA620, WLA622, and WLA632 can be connected directly to an WLC or indirectly over the network. Power must be available at the location where the WLA620, WLA622, or WLA632 is installed.

Informational Note: UL CMX-rated or better cables should always be used for all

outdoor connections.

Page 32

WLA Series Network Configurations

WLAN Mesh Configuration

WLAN mesh services allow a WLA to provide wireless services to clients without a wired interface for the WLA. Instead of a wired interface, the WLA has a radio link to another WLA with a wired interface.

WLAN mesh services can be used at sites where running Ethernet cable to a location is inconvenient, expensive or impossible. Note that power must be available at the location where the Mesh WLA is installed.

The following illustration shows how a client can connect to a network using WLAN mesh services.

Figure 2–2. WLAN Mesh Topology

Backbone

Mesh Link

Client

MX-216

WLC unit

Mesh Portal WLA

Mesh WLA

In the illustration, a client is associated with a Mesh WLA, which is a WLA without a wired interface to the network. The Mesh WLA is configured to communicate with a Mesh Portal WLA, an WLA with wired connectivity to an WLC. Communication betwee n the Mesh WLA and the Mesh Portal WLA takes place over a secure radio link (a Mesh Link). When associated with the Mesh WLA, the client has the same connectivity to the network as if the Mesh WLA is using a wired link.

The Mesh WLA and Mesh Portal WLA make use o f both radios. One radio ( for example, the 802.1 1a radio) can be used for Mesh L ink communications, using a n SSID reserved for this purpose, while the Mesh WLA can use its other radio for client associations in the same way a non-Mesh WLA can.

Page 33

WLA Series Network Configurations

Building 1 Building 2

Wireless Bridge Configuration

You can use WLAN mesh services in a wireless bridge configuration, with the WLA620, WLA622 or WLA632 units serving as bridge endpoints in a transparent Layer 2 bridge. A typical application of wireless bridging is to provide network connectivity between two buildings using a wireless link, as shown in the following illustration.

Figure 2–3. Point-to-Point Wireless Bridge Topology

MX-216

WLC

The wireless bridge is established between a Mesh Portal WLA and a Mesh WLA to which it is associated. The data packets that are bridged are those present on the Ethernet interfaces of the two WLAs. A Mesh WLA serving as a bridge endpoint picks up packets from a wired port and transfers them to the other bridge endpoint. A simple source/destination learning mechanism is used to avoid forwarding packets across the bridge unnecessarily.

A Mesh Portal WLA serving as a bridge endpoint can support up to five Mesh WLAs serving as bridge endpoints in a point-to-multipoint configuration.

Figure 2–4. Point-to-Multipoint Wireless Bridge Topology (figure applies to WLA620, WLA622 and WLA632)

Page 34

WLA Series Network Configurations

WLA620

Mesh Portal WLA

with Omnidirectional

Antenna

WLA620

Mesh WLA

WLA620

Mesh WLA

WLA620

Mesh WLA

WLA620

Mesh WLA

WLA620

Mesh WLA

WLA620

Mesh Portal WLA

with Sector

Antenna

WLA620

Mesh WLA

WLA620

Mesh WLA

WLA620

Mesh WLA

Page 35

Installing and Connecting an Access Point

Informational Note: Before installing an WLA, you should generate a network plan and

an WLA work order using RingMaster. System Administrators and anyone involved in the installation of the WLAN System are responsible for the proper setup and operation in accordance to all rules and regulations of the country in which the equipment operates.

Installation Requirements and Recommendations

For best results, follow these requirements and recommendations before installing an WLA620, WLA622, or WLA632.

RingMaster Network Plan and Work Orders

If you are using RingMaster to plan your Juniper Networks Mobility System installation, you might want to create and verify a network plan for the entire Juniper Networks installation and generate an WLA work order, before installing WLAs. A network plan and the WLA work orders generated from it provide the following information about WLA installation and configuration:

 Number of WLAs required for adequate WLAN capacity in each coverage area  Detailed installation location for each WLA  Settings for all WLAs in the WLAN

WLC Appliance Recommendation

Juniper Networks recommends that you install and configure the WLC before installing a WLA. If the WLC is already installed and configu red for the WLAs, you can immediately verify the cable connection(s) when you plug the cable(s) into the WLA.

Informational Note: The WLA620, WLA622 and WLA632 are designed to receive power

only from a Juniper Networks-provided power injector.

Weather Conditions

When planning an WLA620, WLA622, or WLA632 installation, you must take into account any extreme weather conditions that are known to affect your location. Consider the following factors:

Temperature

Operating a WLA in temperatures outside of the supported range may cause the unit to fail.

 The WLA620 is tested for normal operation in temperatures from 33°C to 55°C

(-27.4 ° to 131°F).

Page 36

Instal ling and Conn ecting an Acces s Point

 The WLA622 is tested for normal operation in tem peratures from -30° to 55 °C (-22°

to 131°F).

 The WLA632 is tested for an ambient opera ting temperature range of -40°C to +55° C

(-40 to 131°F).

Wind Velocity

You must consider the known maximum wind velocity and direction at the site and be sure that any supporting structure, such as a pole, mast, or tower, is built to withstand this force.

 The WLA620, WLA622, and WLA632 can operate in winds up to 144 km/h (90 mph)

and survive higher wind speeds up to 201 km/h (125 mph).

Lightning

The WLA620, WLA622, and WLA632 both include built-in lightning protection. However, you should make sure that the unit, any supporting structure, and cables are all properly grounded. Additional protection using lightni ng rods, lightning arrestors, or surge suppressors may also be employed.

Rain

 The WLA620 and WLA622 units are weatherproofed against rain . Also, prolonged

heavy rain has no significant effect on the radio signal. Howeve r, it is recommended to apply weatherproof sealing tape arou nd the Ethernet port and antenna connectors for extra protection. If moisture enters a connector, it may cause a degradation in performance.

 The WLA632 weatherproof enclosure is designed to protect against dust, rain, and

water jets.

Snow and Ice

 Falling snow, like rain, has no significant effect on the radio signal. However, a build

up of snow or ice on antennas may cause a degradation in performance. In this case, the snow or ice has to be cleared from the antennas to restore proper operation of the unit.

Ethernet Cabling

When you have determined a suitable location for the WLA620, WLA622, or WLA632, you must plan a cable route from the WLA outdoors to the power injector module indoors. Consider these points:

 The Ethernet cable length should never be longer than 100 m (328 ft) over CAT5,

CAT5e, or CAT6 cable.

 Determine a building entry point for the cable.  Determine if conduits, bracing, or other structures are required for safety or

protection of the cable.

 For lightning protection at the power injector end of the cable, consider using a

lightning arrestor immediately before the cable enters the building.

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Installing and Connecting an Access Point

Grounding

WLA620, WLA622, and WLA632

Caution: Always ground the unit first with an appropriate grounding wire (not included)

by attaching it to the grounding screw on the unit.

 It is important that the WLA620, WLA622 and WLA632 units, cables, lightning

arrestors, and any supporting structures are properly grounded. The WLA620 and WLA622 units include a grounding screw for attaching a ground wire. Be sure that grounding is available and that it meets local and national electrical codes. The WLA632 includes two grounding screws and a tubular lug for attaching a crimped ground wire.

WLA Radio Safety Advisories

When you enable the WLA radio(s) as part of WLC configuration, the radios are able to receive and transmit radio frequency energy as soon as you connect the WLA to the WLC, either directly or through the network.

Radio Frequency Exposure

Federal Communications Commission (FCC) Docket 96-8 for Spread Spectrum Transmitters specifies a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC-certified equipment. When used with the proper antennas (shipped in the product), Juniper Networks MP access point products meet the uncontrolled environmental limits found in OET-65 and ANSI C95.1-1991. Proper installation of the MP access point according to the instructions in this manual will result in user exposure that is below the FCC recommended limits.

Additional Radio Safety Advisories

For additional radio safety warnings, the Regulatory Guide document.

Installing a WLA620

The WLA620 includes a bracket kit for mounting the unit to a 3.81 to 5.08 cm (1.5 to 2 inch) diameter steel pole or tube. The pole-mounting bracket allows the unit to be mounted to part of a radio mast or tower structure. The unit also has a wall-mounting bracket kit that enables it to be installed on a building wall or roof when using external antennas.

Hardware installation of the WLA620 involves these steps:

1. Connect the Ethernet cable and a grounding wire to the unit.

2. Mount the unit on a wall, pole, mast, or tower using the mounting bracket.

3. Mount external antennas on the same supporting structure as the WLA620 and

connect them to the unit.

4. Connect the power injector to the Ethernet cable, a local LAN switch, and an AC power source.

5. For wireless bridge or Mesh Services installations, align antennas at the bridge or mesh link endpoints.

Page 38

Instal ling and Conn ecting an Acces s Point

Attach bracket to pole with mounting grooves facing up

Mounting the Unit

You can mount the WLA620 using either the pole-mounting bracket or the wall-mounting bracket. Use one of the following procedures.

Informational Note: If you are installing the WLA620 as a Mesh WLA in a WLAN Mesh or

wireless bridge configuration, and the WLA will not have a wired link to a WLA, you must configure the WLA connection using a wired link to an WLC switch before deploying the WLA620 in a final location.

Using the Pole-Mounting Bracket

Perform the following steps to mount the unit to a 3.81 to 5.08 cm (1.5 to 2 inch) diameter steel pole or tube using the mounting bracket:

1. Always attach the bracket to a pole with the open end of the mounting grooves

facing up.

2. Place the U-shaped part of the bracket around the pole and tigh ten the secu ring nut just enough to hold the bracket to the pole. (The bracket may need to be rotated around the pole during the alignment process.)

3. Use the included nuts to tightly secure the WLA620 to the bracket.

Mounting on Larger Diameter Poles

In addition, there is a method for attaching the pole-mounting bracket to a pole that is

5.08 to 12.7 cm (2 to 5 inches) in diameter using an adjustable steel band strap (not

included in the kit). A steel band strap up to 0.5 inch (1.27 cm) wide can be threaded through the main part of the bracket to secure it to a larger diameter pole without using the U-shaped part of the bracket. This method is illustrated in the following figure.

Figure 3–2. Attaching the Bracket Using a Steel Band Strap

Figure 3–1. Attaching the Bracket to the Pole

Page 39

Steel Band Clamp

Mounting Grooves

Using the Wall-Mounting Bracket

Perform the following steps to mount the unit to a wall using the wall-mounting br acket:

1. Always attach the bracket to a wall with the open end of the mounting grooves

facing up (see following figure).

Installing and Connecting an Access Point

Figure 3–3. Wall-Mounting Bracket

2. Position the bracket in the intended location and mark the position of the three mounting screw holes.

3. Drill three holes in the wall that match the screws and wall plugs included in the bracket kit, then secure the bracket to the wall.

4. Use the included nuts to tightly secure the WLA620 to the bracket.

Connecting External Antennas

When deploying an WLA620, you must mount external antennas and connect them to the unit. Typically, access point operation requires a 2. 4 GHz antenna, and brid ge link operation requires a 5 GHz antenna.

Perform these steps:

1. Mount the external antenna to the same supportin g structure as the WLA620, within

3 m (10 ft) distance, using the bracket supplied in the antenna package.

2. If you are installing the optional lightning arrestor for an outdoor antenna, perform the following steps. Otherwise, skip to step 5.

Page 40

Instal ling and Conn ecting an Acces s Point

To External AntennaTo WLA620

6-gauge Grounding Cable

Grounding Nut

Locking Washer

Hex Nut

Lightning Protector

3. Solder the ground wire to the ground-wire terminal lug supplied with the lightning arrestor. Junip er Networks recommends that you use 6-gauge cable for the ground wire. The ground wire must be properly earthe d in or de r to pro vid e ad eq u at e protection.

4. Attach the ground-wire terminal lug, lock washer, and hex nut to the lightning arrestor, in the order shown in the figure below.

Informational Note: To meet regulatory requirements, you must ensure that the external

antenna specified with the set ap radio antenna type command exactly matches the external antenna attached to the WLA620 external antenna port.

Figure 3–4. Attaching the Ground-Wire Terminal Lug, Lock W asher, and Hex Nut to the Lightning Arrestor

a. Connect one end of the short RF coaxial cable to the WLA620 N-type connector,

and connect the other end to the lightning arrestor.

b. Connect one end of the 3m RF coaxial cable to the lightning arrestor, and

connect the other end to the outdoor antenna. Continue with step 6.

5. Connect the antenna to the WLA620 N-type connector using the RF coaxial cable provided in the antenna package.

6. Apply weatherproofing tape to the antenna connectors to help prevent water entering the connectors.

Page 41

Installing and Connecting an Access Point

RF Coaxial Cable

2.4 GHz External Omnidirectional Antenna

2.4 GHz N-type Connector

5 GHz N-type Connector

5 GHz External High-gain Panel Antenna

Optional Lightning Protector

MP-620

Figure 3–5. Connecting External Antennas to the WLA620

Connecting Cables to the Unit

1. Ground the unit with an appropriate grounding wire (not included) by attaching it to

the grounding screw on the unit

2. Attach the Ethernet cable to the Ethernet port on the WLA620.

Informational Note: The Ethernet cable included with the package is 30 m (100 ft) long.

To wire a longer cable (maximum 100 m, 325 ft), use the connector pinout information in Appendix B.

3. For extra protection against rain or moisture, apply weatherproofing tape (not included) around the Ethernet connector.

Caution: Be sure that grounding is available and that it meets local and national electrical

codes. For additional lightning protection, use lightning rods, lightning arrestors, or surge suppressors.

Page 42

Instal ling and Conn ecting an Acces s Point

Ground Wire

Ethernet Cabl e

Ethernet Cable (Cat 5 cable)

WLA, server or other device

Ethernet port

Figure 3–6. Attaching an Ethernet Cable to the WLA620

Connecting the Power Supply

Contact a fully qualified electrician to perform the installation.

Connecting an WLA to an WLC

You can connect an WLA directly to an WLC or indirectly to the WLC through an intermediate Layer 2 or Layer 3 network. If you are connecting the WLA directly to an WLC, use the following procedure to insert the cable into the WLC and verify the link.

Y ou can use the CLI or RingMaster to configure an WLA connection. If you are installing the WLA620 as a Mesh WLA in a WLAN Mesh or wireless bridge configuration, you must configure the WLA connection before deploying the WLA620 in its final location.

Figure 3–7 below shows how to insert a Cat 5 cable into 10/100 Ethernet port on an WLC. Refer to this figure as you perform the procedure.

1. Insert a Cat 5 cable with a standard RJ45 connector as shown in Figure 3–7. For

connection to an WLA, use a straight-through cable.

Figure 3–7. 10/100 Cat 5 Cable Installation

2. When the link is activated, observe the WLA LED for the port on the WLC:

Page 43

Table 1: WLA Port LED Behavior

WLC Port LEDs for WLA Connections

Solid green For an WLA access point active link, all the following are

Alternating green and amber WLA is booting with an image received from the WLC

Solid amber PoE is on.

Blinking amber WLA is unresponsive or there is a PoE problem.

Unlit PoE is off.

Meaning

true:

 WLA has booted.

 WLA has received a valid configuration from the MX

switch.

 Management link with an MP is operational.

 At least one radio is enabled or is in sentry mode.

For an WLA secondary link, the link is present.

switch. After the access point boots and receives its configuration, this LED appearance persists until a radio is enabled or is placed in sentry mode.

Informational Note: A WLC switch 10/100 Ethernet ports are configured as wired

network ports by default. You must change the port type for an WLC port directly connected to an WLA to activate the link.

Installing and Connecting an Access Point

Aligning Antennas for Bridge or Mesh Links

If you are installing WLA620 units for wireless bridge or Mesh Services operation, after the units have been mounted, connected, and the radios are operating, the antennas must be accurately aligned to ensure optimum performance on the bridge or mesh links.

This alignment process is particularly important for long-range point-to-point links. In a point-to-multipoint configuration, the Mesh Portal WLA uses an omnidirectional or sector antenna, which does not require alignment, but Mesh WLAs still need to be correctly aligned with the Mesh Portal antenna.

 Point-to-Point Configurations – In a point-to-point configuration, the alignment

process requires two people at each end of the link. The use of cell phones or two-way radio communication may help with coordination. To start, you can just point the antennas at each other, using binoculars or a compass to set the general direction. For accurate alignment, you must connect a DC voltmeter or RSSI meter to the BNC connector on the WLA620 and monitor the voltage as the ante nna moves horizontally and vertically.

 Point-to-Multipoint Configurations – In a point-to-multipoint configuration all Mesh

WLAs must be aligned with the Mesh Portal antenna. The alignment process is the same as for point-to-point links, but only the Mesh WLA end of the link requires the alignment.

The WLA620 BNC connector provides an output voltage between 0 and 3.28 VDC that is proportional to the received radio signal strength. The higher the voltage rea ding, the stronger the signal. The radio signal from the remote antenna can be seen to have a strong central main lobe and smaller side lobes. The object of the alignment process is to set the antenna so that it is receiving the strongest signal from the central main lobe.

Page 44

Instal ling and Conn ecting an Acces s Point

Main Lobe Maximum

Horizontal Scan

Vertical Scan

RSSI Voltage

Side Lobe Maximum

RSSI Voltage

Remote Antenna

Maximum Signal Strength Position

for Horizontal Alignment

Maximum Signal

Strength Position for

Vertical Alignment

Figure 3–8. Aligning the WLA620 Antenna According to Signal Strength

To align the antennas in the link using the output voltage, start with one antenna fixed and then perform the following procedure to align the other antenna:

1. Optionally configure the WLA with the fixed ante nna to send lin k calibration pa cket s.

set ap

2. On the WLA620, remove the BNC connector cover and connect a DC voltmeter or

Figure 3–9. Connecting a Vo ltmeter to the WLA620

A link calibration packet is an unencrypted 802.11 management packet of type Action. When enabled on an WLA radio, link calibration packets are sent at a rate of 5 per second. When the WLA620 receives a link calibration packet, it emits a voltage to the RSSI meter proportional to the received sig nal strength of the packet . This can aid in positioning the WLA620 where it has a strong signal to the WLA sending out the packets.

To configure an WLA radio to send out link calibration packets, use the following command on the WLC:

num

radio

num link-calibration

mode {

enable

disable

}

Only one radio on a WLA can be configured to send link calibration packets. Link calibration packets are intended to be used only during installatio n of WLAs and not on a continual basis.

RSSI meter using a cable with a male BNC connector (not included).

Page 45

Installing and Connecting an Access Point

Voltmeter

RSSI BNC Connection

3. Pan the antenna horizontally back and forth while checking the RSSI voltage. If using the pole-mounting bracket with the WLA620, you must rotate the mounting bracket around the pole. Other external antenna brackets may require a different horizontal adjustment.

4. Find the point where the signal is strongest (highest voltage) and secure the horizontal adjustment in that position.

Informational Note: Sometimes there may not be a central lobe peak in the voltage

because vertical alignment is too far off and only two similar peaks for the side lobes are detected. In this case, fix the antenna so that it is halfway between the two peaks.

5. Loosen the vertical adjustment on the mounting bracket and tilt the antenna slowly up and down while checking the RSSI voltage.

6. Find the point where the signal is strongest and secure the vertical adjustment in that position.

7. Remove the voltmeter cable and replace the connector cover.

Page 46

Instal ling and Conn ecting an Acces s Point

Installing a WLA622

The WLA622 includes a bracket kit for mounting the unit to a 3.81 to 5.08 cm (1.5 to 2-inch) diameter steel pole or tube. The pole-mounting bracket allows the unit to be mounted to part of a radio mast or tower structure. The unit also has a wall-mounting bracket kit that enables it to be installed on a building wall or roof when using external antennas.

Hardware installation of the WLA622 involves these steps:

1. Connect the Ethernet cable and a grounding wire to the unit.

2. Mount the unit on a wall, pole, mast, or tower using the mounting bracket.

3. Mount external antennas on the same supporting structure as the WLA622 and

connect them to the unit.

4. Connect the power injector to the Ethernet cable, a local LAN switch, and an AC power source.

5. For wireless bridge or Mesh Services installations, align antennas at the bridge or mesh link endpoints.

Mounting the Unit

You can mount the WLA622 using either the pole-mounting bracket or the wall-mounting bracket. Use one of the following procedures.

Informational Note: If you are installing the WLA622 as a Mesh WLA in a WLAN Mesh or

wireless bridge configuration, the WLA does not have a wired link to an WLC. You must configure the WLA connection using a wired link to an WLC before deploying the WLA622 in a final location.

Using the Pole-Mounting Bracket

Perform the following steps to mount the unit to a 3.81 to 5.08 cm (1.5 to 2-inch) diameter steel pole or tube using the mounting bracket:

Informational Note: Always attach the bracket to a pole with the open end of the

mounting grooves facing up.

1. Place the V-shaped part of the bracket around the pole and tighten the securing

nuts just enough to hold the bracket to the pole. (The bracket may need to be rotated around the pole during the alignment process.)

Page 47

Installing and Connecting an Access Point

Figure 3–10. Attaching the Bracket to the Pole

2. Fit the edges of the V - shaped p art into the slots in the r ectangular pla te, and use the included nuts to tightly secure the WLA622 to the bracket.

Page 48

Instal ling and Conn ecting an Acces s Point

3. Attach the adjustable rectangular plate to the bridge with supplied screws.

4. Attach the bridge with bracket to the plate already fixed to the pole.

5. Use the included nuts to secure the wireless bridge to the pole bracket. Note that

the wireless bridge tilt angle may need to be adjusted during the antenna alignment process. Be sure to take account of the antenna polarization direction. All antennas in a link must be mounted with the same polarization.

Page 49

Installing and Connecting an Access Point

Mounting on Larger Diameter Poles

There is also a method for attaching the pole-mounting bracket to a pole that is 5.08 to

12.7 cm

(2 to 5 inches) in diameter using an adjustable steel band strap (not included in the kit). A steel band strap up to 1.27 cm (0.5 inch) wide can be threaded throu gh the main part of the bracket to secure it to a larger diameter pole without using the U-shaped part of the bracket. This method is illustrated in the following figure.

Using the Wall-Mounting Bracket

Perform the following steps to mount the unit to a wall using the wall-mounting br acket.

Informational Note: The wall-mounting bracket does not allow the integrated antenna

of the wireless bridge to be aligned. It is intended for use with the unit using an external antenna.

Figure 3–11. Attaching the Bra cke t Usin g a Steel Band strap

1. Always attach the bracket to a wall with the flat side flush against the wall (see

following figure).

Figure 3–12. Wall-Mounting Bracket

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Instal ling and Conn ecting an Acces s Point

2. Position the bracket in the intended location and mark the position of the four mounting screw holes.

3. Drill four holes in the wall that match the screws and wall plugs included in the bracket kit, then secure the bracket to the wall.

4. Use the included nuts to tightly secure the WLA622 to the bracket.

Connecting External Antennas

For some applications, when deploying an WLA622, you must mount external antennas and connect them to the unit. Typically, access point operation requires a 2.4 GHz antenna, and bridge link operation requires a 5.0 GHz antenna.

The primary port for 802.11bg (2.4Ghz) is port 1 and the primary port for 802.11a is Port

3. The WLA622 supports one or two antennas connected to each band. If you install

one antenna it must be installed in the primary port. If you install two antennas they must be the same antenna model. There are no additional configuration requirements for adding the second antenna. If antenna diversity between the two antennas is a desired option it must be configured.

The default for the 802.11bg radio is ANT-1360-OUT.

set ap apnum radio num antennatype {ANT-1120-OUT | ANT-1360-OUT |

The antenna-location must be either indoors or outdoors. Placing and configuring one antenna indoors and the other outdoors is not allowed.

set ap apnum antenna-location {indoors | outdoors}

To connect external antennas follow these steps:

1. Mount the external antenna to the same supportin g structure as the WLA622, within

2. If you are installing the optional lightning arrestor for an outdoor antenna, perform

the following steps. Otherwise, skip to step 5.

ANT-5360-OUT | ANT-5120-OUT | ANT-5PNL-OUT}

10 ft (3 m) distance, using the bracket supplied in the antenna package.

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Installing and Connecting an Access Point

To External Antenna

To MP-632

6-gauge Grounding Cable

Grounding Nut

Locking Washer

Hex Nut

Lightning Protector

a. Solder the ground wire to the ground-wire terminal lug supplied with the lightning

arrestor. Junip er Networks recommends that you use 6-gauge cable for the ground wire. The ground wire must be properly earthed in order to provide adequate protection.

b. Attach the ground-wire terminal lug, lock washer, and hex nut to the lightning

arrestor, in the order shown in Figure 3–4 below.

Informational Note: To meet regulatory requirements, you must ensure that the external

antenna specified with the set ap radio antennatype command exactly matches the external antenna attached to the WLA622 external antenna port.

Figure 3–13. Attaching the Ground-Wire Terminal Lug, Lock Washer, and Hex Nut to the Lightning Arrestor

c. Connect one end of the short RF coaxial cable to the WLA622 N-type connector,

and connect the other end to the lightning arrestor.

d. Connect one end of the 3m RF coaxial cable to the lightning arrestor, and

connect the other end to the outdoor antenna. Continue with step 6.

3. Connect the antenna to the WLA622 N-type connector using the RF coaxial cable provided in the antenna package.

4. Apply weatherproofing tape to the antenna connectors to help prevent water entering the connectors.

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Instal ling and Conn ecting an Acces s Point

RF Coaxial Cable

2.4 GHz External Omnidirectional Antenna

2.4 GHz N-type Connector

5 GHz N-type Connector

5 GHz External High-gain Panel Antenna

Figure 3–14. Connecting External Antennas to the WLA622

Connecting Cables to the Unit

1. Ground the unit with an appropriate grounding wire (not included) by attaching it to

2. Attach the Ethernet cable to the Ethernet port on the WLA622.

3. For extra protection against rain or moisture, apply weatherproofing tape (not

4. Be sure to install a lightning arrestor on the Ethernet cable between the bridge and

the grounding screw on the unit.

included) around the Ethernet connector.

power injector. The li ghtning arrestor should be placed outdoo rs, immediately before the Ethernet cable enters the building.

Caution: Be sure that grounding is available and that it meets local and national electrical

codes. For additional lightning protection, use lightning rods, lightning arrestors, or surge suppressors.

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Installing and Connecting an Access Point

Figure 3–15. Attaching an Ethernet Cable to the WLA622

Connecting the Power Supply Unit

Contact a fully qualified electrician to perform the installation. To connect the wireless bridge to a PSU:

Informational Note: The Ethernet port on the wireless bridge does not support Power

over Ethernet (PoE) based on the IEEE 802.3af standard. Do not try to power the unit by connecting it directly to a WLC that provides IEEE 802.3af PoE. For power, always connect the unit only to the included WLA-XPS9001GO PSU.

1. Connect the Ethernet cable from the wireless bridge to the PoE port labeled “DATA

PWR OUT” on the PSU..

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Instal ling and Conn ecting an Acces s Point

Caution: The DATA IN port on the PSU is not used.

2. The WLA-XPS9001GO PSU is shipped with an North American (NA) power cable connected to the standard AC recept acle on the PSU. For international users, inst all your own nationally-approved AC plug to the power cable.

3. Plug the other end of the power cable into a grounded, 3-pin socket, AC power source

Informational Note: International users must use a nationally approved AC plug

appropriate for your country.

Checking the LED Indicators

The 11a and 11b/g LEDs on the WLA622 operate in two display modes, which are configurable through the software. The default WLA mode indicates data traffic rates. The RSSI mode indicates the received signal power and is used when aligning antennas in a bridge link.

When the bridge is connected to power, the LEDs function as follows:

Table 2: 11a and 11b/g LED Behavior on the WLA622

LED Appearance Meaning

Power Green The bridge is powered up and operating normally.

Off The bridge is not receiving power or there is a fault with the power

supply.

Amber The system is under cold reset status.

Link Green The bridge has a 10/100 Mbps Fast Ethernet connection, but there

is no activity.

Flashing Indicates that the bridge is transmitting or receiving data on a

10/100 Mbps Ethernet LAN. Flashing rate is proportional to network activity.

Off No link is present or the Ethernet LAN port is disabled.

11a

(Three LEDs)

Green and Flashing The 802.11a 5.3 GHz radio is enabled.

RSSI Mode:

 One fully lit LED indicates a low RSSI output level, two LEDs.a

medium level, and three LEDs the maximum level.

 A flashing LED indicates an intermediate RSSI output level WLA

Mode:

 One fully lit LED indicates a low traffic rate, two LEDs.a medium

rate, and three LEDs the maximum rate.

 A flashing LED indicates an intermediate traffic rate level

Off No link is present or the 802.11a radio is disabled.

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Table 2: 11a and 11b/g LED Behavior on the WLA622

Ethernet Cable (Cat 5 cable)

WLA, server or other device

Ethernet port

LED Appearance Meaning

11g

(Three LEDs)

Amber and Flashing The 802.11g 2.4 GHz radio is enabled.

RSSI Mode:

 One fully lit LED indicates a low RSSI output level, two LEDs.a

medium level, and three LEDs the maximum level.

 A flashing LED indicates an intermediate RSSI output level WLA

Mode:

 One fully lit LED indicates a low traffic rate, two LEDs.a medium

rate, and three LEDs the maximum rate.

 A flashing LED indicates an intermediate traffic rate level

Off No link is present or the 802.11g radio is disabled.

Connecting a WLA to a WLC

Informational Note: For lightning protection at the power injector end of the cable,

consider using a lightning arrestor immediately before the cable enters the building.

Installing and Connecting an Access Point

You can connect a WLA directly to an WLC or indirectly to the WLC through an intermediate Layer 2 or Layer 3 network. If you are connecting the WLA directly to an WLC, use the following procedure to insert the cable into the WLC and verify the link.

You can use the CLI or RingMaster to configure a WLA connection. If you are installing the WLA622 as a Mesh WLA in a WLAN Mesh or wireless bridge configuration, you must configure the WLA connection before deploying the WLA622 in its final location. (See the Mobility System Software Configuration Guide.)

The figure below shows how to insert a Cat 5 cable into 10/100 Ethernet port on an WLC. Refer to this figure as you perform the procedure.

Figure 3–16. 10/100 Cat 5 Cable Installation

1. Insert a Cat 5 cable with a standard RJ45 connector as shown in Figure 3–7. For

connection to an WLA, use a straight-through cable.

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Instal ling and Conn ecting an Acces s Point

2. When the link is activated, observe the WLA LED for the port on the WLC.

Table 3: WLC Port LEDs for WLA Connections

WLC Port LEDs for WLA Connections

Solid green For an WLA active link, all the following are true:

Alternating green and amber

Solid amber PoE is on.

Blinking amber WLA is unresponsive or there is a PoE problem.

Unlit PoE is off.

Informational Note: The WLC 10/100 Ethernet ports are configured as wired network

ports by default. You must change the port type for an WLC port directly connected to a WLA to activate the link. (See the Wireless Lan Controller Installation and Basic Configuration Guide.)

Meaning

 WLA has booted.

 WLA has received a valid configuration from the WLC.

 Management link with an WLA is operational.

 At least one radio is enabled or is in sentry mode.

For a WLA secondary link, the link is present.

WLA is booting with an image received from the WLC switch. After the access point boots and receives its configuration, this LED appearance persists until a radio is enabled or is placed in sentry mode.

Aligning Antennas for Bridge or Mesh Links

If you are installing WLA622 units for wireless bridge or Mesh Services operation, after the units have been mounted, connected, and the radios are operating, the antennas must be accurately aligned to ensure optimum performance on the bridge or mesh links.

 Point-to-Point Configurations – In a point-to-point configuration, the alignment

process requires two people at each end of the link. The use of cell phones or two-way radio communication may help with coordination. To start, you can just point the antennas at each other, using binoculars or a compass to set the general direction. For accurate alignment, monitor the RSSI’s LED indicator as yo u move the antenna horizontally and vertically.

 Point-to-Multipoint Configurations – In a point-to-multipoint configuration all Mesh

WLAs must be aligned with the Mesh Portal antenna. The alignment process is the same as for point-to-point links, but only the Mesh WLA end of the link requires the alignment.

The LEDs are viewed right to left as you look at the back of the WLA. The range from 1 to 12 will cover the signal range to accurately align the antenna. The signal strength LEDs indicate the received radio signal strength for a particular bridge link. The more LEDs that turn on, the stronger the signal. (RSSI level 1 should equate to the lowest useful signal). Alternatively, you can monitor the Receive Signal Strength Indicator (RSSI) value directly from the management interface. The higher the RSSI value, the stronger the signal.

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Installing and Connecting an Access Point

Main Lobe Maximum

Horizontal Scan

Vertical Scan

RSSI Value

Side Lobe Maximum

RSSI Value

Remote Antenna

Maximum Signal Strength Position

for Horizontal Alignment

Maximum Signal

Strength Position for

Vertical Alignment

When you move the antenna during alignment, the radio signal from the remote antenna can be seen to have a strong central main lobe and smaller side lobes. The object of the alignment process is to set the antenna so that it is receiving the strongest signal from the central main lobe.

Figure 3–17. Aligning the WLA622 Antenna According to Signal Strength

When aligning the antennas the WLA with the antenna that is being aligned to must be set to send link-calibration packets. Use the following command to setup the WLA that the WLA622 is being aligned with.

set ap num radio num link-calibration mode {enable | disable}

Link-calibration should be disabled under normal operation of the WLA. If the WLA622 is installed with two directional anten nas, connect the firs t antenna to the

primary antenna port with antenna diversity off and align it. Then disconnect the first antenna and connect the second antenna to the primary antenna port. If the second antenna is being aligned with a different WLA, disable link-calibration on the original WLA and enable it on the new WLA. Once both antennas are properly aligned, connect them to their desired ports.

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Instal ling and Conn ecting an Acces s Point

To align the antennas in the link using the output LEDs, st art with on e antenna fixed and then perform the following procedure to align the other antenna:

1. Pan the antenna horizontally back and forth while checking the RSSI LEDs. If using

the pole-mounting bracket with the WLA622, you must rotate the mounting bracket around the pole. Other external antenna bracke t s may requ ire a d if fer ent horizont a l adjustment.

2. Find the point where the signal is strongest (all LEDs on) and secure the horizontal adjustment in that position.

Informational Note: Sometimes there may not be a central lobe peak in the RSSI LED

indicators because vertical alignment is too far off and only two similar peaks for the side lobes are detected. In this case, fix the antenna so that it is halfway between the two peaks.

3. Loosen the vertical adjustment on the mounting bracket and tilt the antenna slowly up and down while checking the LEDs.

Find the point where the signal is strongest and secure the vertical adjustment in that position.

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Installing and Connecting an Access Point

Installing a WLA632

The WLA632 includes a bracket kit for mounting the unit to a 3.81 to 5.08 cm (1.5 to 2-inch) diameter steel pole or tube. The unit also has a wall-mounting bracket kit that can be used to install the unit on a building wall. You also have the option to mount the WLA on a larger pole (up to 30.48 cm or 12-inch diameter) using the bracket kit and two metal band straps (straps not provided by Juniper Networks). Hardware installation of the WLA632 involves these steps:

1. Mount the unit on a wall, pole, mast, or tower using the mounting bracket.

2. Mount external antennas on the same supporting structure as the WLA632 and

connect them to the unit.

3. Connect the Ethernet cable and a grounding wire to the unit.

4. Connect the other end of the circular DIN power cable to the WLA-XPS9001GO.

War n ing: The WLA632 must only be used with a Juniper Networks approved

WLA-XPS9001GO PSU in order to prevent possible damage to the unit.

5. Connect the circular DIN Ethernet cable and prepare the RJ45 cable with the waterproof cover that is provided.

Informational Note: Any additional cabling used in the assembly should be a

minimum UL CMX outdoor-rated or equivalent.

Mounting the Unit

Y ou can mount the WLA632 usin g either the wall-mounting bracket or the wall-mounting bracket combined with the pole-mounting bracket (bracket s are provided for bo th a 3.81 to 5.08 cm (1.5 to 2-inch) diameter steel pole or tube or a larger size pole or tube). Use one of the following procedures.

Using the Pole-Mounting Bracket

Perform the following steps to mount the unit to a 3.81 to 5.08 cm (1.5 to 2-inch) diameter steel pole or tube using the mounting bracket:

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Instal ling and Conn ecting an Acces s Point

1. Insert the four large screws (included in kit) through the four circular holes in the

bracket as shown below.

2. Position the flat bracket behind the pole as shown below and align the screws on the front bracket with the holes in the flat bracket.

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Installing and Connecting an Access Point

3. Insert the four screws into the holes on the flat bracket and secure the brackets to the pole using the provided split washers and nuts.

4. Position the WLA632 unit so that the mounting holes ov er lap with th e sam e -s ize d holes on the pole-mounting bracket.

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Instal ling and Conn ecting an Acces s Point

5. Use the 2 small bolts and washers (included in kit) to tightly secure the WLA632 to the pole-mounting bracket.

Informational Note: This pole mounting procedure can also be used to attached the

WLA632 unit to a horizontal pole.

Mounting on Larger Diameter Poles

There is also a method for attaching the pole-mounting b racket to a larger diameter pole using two adjustable steel band straps (not included in the kit). The two steel band straps can be threaded through the rectangular holes in the bracket to secure it to a larger diameter pole. This method is shown in the following figure.

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Installing and Connecting an Access Point

Figure 3–18. Attaching the Bracket Using Steel Band Straps

Using the Wall-Mounting Bracket

Perform the following steps to mount the unit to a wall using the wall-mounting bracket.

Informational Note: Always attach the bracket to a wall with the flat side flush

against the wall (see following figure).

Figure 3–19. Wall-Mounting Bracket

1. Position the bracket on the intended wall location and drill four large screws (not

included in kit) in through the circular holes on the bracket until it is firmly secured to the wall.

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Instal ling and Conn ecting an Acces s Point

2. Position the WLA632 unit so that the mounting holes ov er lap with th e sam e -s ize d holes on the wall-mounted bracket..

3. Use the 2 small bolts and washers (included in kit) to tightly secure the WLA632 to the wall-mounted bracket.

Connecting External Antennas

The supported antennas models are:

 802.11bgn Radio

 ANT-7360A-OUT (stick, N-type jack) If this antenna is used the unused center

antenna port must be terminated.

 ANT-77555-OUT (3 RP-SMA jack)

Page 65

 ANT-74520-OUT (3 RP-SMA)

 802.11an Radio

ANT-7360A-OUT (stick) ANT-74520-OUT (3 RP-SMA) ANT-77555-OUT (3 RP-SMA) ANT-5007-OUT (2 N-type)

The port usage depends on the antennas in use. If the OMNI antennas are used there must be 3 antennas installed for the radio. If an antenn a is used then the two e dge ports must be connected to the antenna (ports 4 and 6). The middle port will be turned off by the software and should be terminated. If either the ANT-77555 or 74520 are used all three connectors must be connected to the WLA for the correct radio.

set ap apnum radio num antennatype {ANT-7360A-OUT | ANT-77555-OUT |

ANT-74520-OUT | ANT-5O07-OUT} …

The antenna-location must be either indoors or outdoors. Although this is an outdoor WLA it may be used indoors. The following command is per radio.

set ap apnum antenna-location {indoors | outdoors}

Informational Note: Splitting the antennas between indoors and outdoors is not

allowed.

Installing and Connecting an Access Point

Multiple External Antenna Support

set ap num radio num external-antennas num

If the external-antenna command is used for the WLA632 it will be ignored at the CLI. If the ANT-5007-OUT antenna is in use on the 11a/n radio then the radio configuration

will revert to 2 x 3 mode rather than 3 x 3 mode and the middle port for the radio must not be used.

Ethernet

The WLA632 supports a single IEEE 802.3-compliant auto-sensing 10/100/1000 BaseT Ethernet interface on the Ethernet input connector. The WLA is configured as auto MDI/MDIX and is powered from the WLA-XPS9001GO power supplies.

Caution: The WLA622 and WLA632 must only be used with a Juniper

Networks-approved WLA-XPS9001GO power supply in order to prevent possible damage to the unit.

The WLA632 receives separate primary 48VDC power input and Ethernet signal from separate 48VDC and Ethernet input connectors.

Caution: If you convert the 8 pin female circular DIN data port on the WLA632 bulkhead

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Instal ling and Conn ecting an Acces s Point

To External AntennaTo WLA unit

6-gauge Grounding Cable

Grounding Nut

Locking Washer

Hex Nut

Lightning Protector

Informational Note: Any additional cabling used in the assembly should be a minimum

UL CMX outdoor-rated or equivalent.

The WLA632 48VDC / Ethernet inputs provides primary and secondary lightning protection on all conductors. (The 48VDC / Ethernet inputs to the WLA632 need lightning protection because the power supply can be up to 100m away.)

The Ethernet interface supports a cable length of at least 100m over CAT5, CAT5e, or CAT6 cable.

Figure 3–20. Attaching the Ground-Wire Terminal Lug, Lock Washer, and Hex Nut to the Lightning Arrestor

1. Connect one end of the short RF coaxial cable to the WLA632 N-type connector,

and connect the other end to the lightning arrestor.

2. Connect one end of the 3m RF coaxial cable to the lightning arrestor, and connect the other end to the outdoor antenna. Continue with step 6.

3. Connect the antenna to the WLA632 N-type connector using the RF coaxial cable provided in the antenna package.

4. Apply weatherproofing tape to the antenna connectors to help prevent water entering the connectors.

Connecting Cables to the Unit

1. Ground the unit with an appropriate grounding wire (not included) by attaching it to

the grounding screw on the unit

2. Attach the Ethernet cable to the Ethernet port on the WLA632.

3. For extra protection against rain or moisture, apply weatherproofing tape (not

included) around the Ethernet connector.

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Installing and Connecting an Access Point

4. Be sure to install a lightning arrestor on the Ethernet cable between the bridge and power injector. The li ghtning arrestor should be placed outdoo rs, immediately before the Ethernet cable enters the building.

Informational Note: Be sure that grounding is available and that it meets local and

national electrical codes. For additional lightning protection, use lightning rods, lightning arrestors, or surge suppressors.

Connecting the Power Supply Unit

To connect the wireless bridge to a PSU:

Informational Note: The Ethernet port on the wireless bridge does not support Power

over Ethernet (PoE) based on the IEEE 802.3af standard. Do not try to power the unit by connecting it directly to a network switch that provides IEEE 802.3af PoE. Always connect the unit to the included power injector module.

Informational Note: The WLA622 and WLA632 must only be used with a Juniper

Networks-approved WLA-XPS9001GO outdoor power supply in order to prevent possible damage to the unit.

1. Connect the Ethernet cable from the wireless bridge to the PoE port labeled “DATA

PWR OUT” on the PSU.

Informational Note: The DATA IN port on the PSU is not used.

3. Plug the other end of the power cable into a grounded, 3-pin socket, AC power source.

Informational Note: International users must use a nationally approved AC plug

appropriate for your country.

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Instal ling and Conn ecting an Acces s Point

Checking the LED Indicators

The WLA632 has LEDs that provide status information for the device. The table below lists the function of the LEDs.

Table 4: LED Functions

LED Appearance Meaning

Health Solid green All the following are true:

 Management link with an WLC is operational.

 WLA has booted.

 WLA has received a valid configuration from an WLC.

 At least one radio is enabled or is in sentry mode.

Solid amber WLA is waiting to receive boot instructions and a configuration

file from an WLC.

Alternating green and amber WLA is booting and receiving a configuration file from an WLC.

After the WLA boots and receives a configuration, this LED appearance persists until a radio is enabled or is placed in sentry mode.

Radio 1/ Radio 2 Solid green A client is associated with the radio.

Blinking green Associated client is sending or receiving traffic.

Blinking amber Non-associated client is sending or receiving traffic.

Alternating green and amber Radio is unable to transmit. This state can occur due to any of the

followin g:

 Excessive radio interference in the environment is preventing

the radio from sending beacons.

 DFS has detected radar and is restricting traffic.

 The radio has failed.

Unlit Means one of the following:

 Radio is disabled and active scan is enabled. (The radio is in

sentry mode.)

 Radio is enabled, but no clients are associated with it.

The LEDs are also used to indicate RSSI signal level during mesh link calibration.

Connecting a WLA to an WLC

Informational Note: For lightning protection at the power injector end of the cable, use a

lightning arrestor immediately before the cable enters the building.

You can use the CLI or RingMaster to configure a WLA connection. If you are installing the WLA632 as a Mesh WLA in a WLAN Mesh or wireless bridge configuration, you must configure the WLA connection before deploying the WLA632 in its final location.

1. Insert a Cat 5 cable with a standard RJ45 connector. For connection to a WLA, use

a straight-through cable.

2. When the link is activated, observe the WLA LED for the port on the WLC:

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Installing and Connecting an Access Point

Table 5: WLC Port LEDs for WLA Connections

WLC Port LEDs for WLA Connections

Solid green For an WLA active link, all the following are true:

Alternating green and amber WLA is booting with an image received from the WLC switch. After the access point

Solid amber PoE is on.

Blinking amber WLA is unresponsive or there is a PoE problem.

Unlit PoE is off.

Alternating green and amber WLA is booting with an image received from the WLC switch. After the access point

Solid amber PoE is on.

Meaning

 WLA has booted.

 WLA has received a valid configuration from the WLC switch.

 Management link with an WLA is operational.

 At least one radio is enabled or is in sentry mode.

For an WLA secondary link, the link is present.

boots and receives its configuration, this LED appearance persists until a radio is enabled or is placed in sentry mode.

Informational Note: The WLC 10/100 Ethernet ports are configured as wired network

ports by default. You must change the port type for an WLC port directly connected to a WLA to activate the link.

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Instal ling and Conn ecting an Acces s Point

Page 71

WLA Series Technical Specifications

This chapter lists the technical specifications for the Juniper Networks WLA620, WLA622, and WLA632. For detailed compliance information, see the Regulatory Guide document.

Informational Note: This Listed Accessory is designed and approved to be used only with

Juniper Networks WLC models WLC8 and WLC2. (The WLC200 does not directly connect to the WLA.)

Informational Note: The WLA radios are disabled by default and can be enabled only by

the system administrator using the RingMaster management application or the WLC’s command-line interface (CLI).

Informational Note: Regulatory Obligation: The radio frequency band, operating

channels, and transmit power depend on the country of operation specified by the system administrator using RingMaster or the WLC’s CLI.

WLA Mechanical and Compliance Specifications

Table 1 lists the mechanical and compliance specifications for the WLA620 and WLA622.

Table 1: WLA620 and WLA622 Mechanical and Compliance Specifications

Specification Description

Maximum Channels (Outdoor)

Data Rates 802.11a:

Maximum Clients 64 for the radio interface set to access point mode

Modulation Types 802.11a: BPSK, QPSK, 16-QAM, 64-QAM

Network Configuration Access Point Mode:

Based on the country of operation

6, 9, 12, 18, 24, 36, 48, 54 Mbps per channel

802.11g: 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps per channel

802.11b: 1, 2, 5.5, 11 Mbps per channel

802.11g: CCK, BPSK, QPSK, OFDM

802.11b: CCK, BPSK, QPSK

Infrastructure

Bridge Mode:

Point-to-point and point-to-multipoint

Page 72

WLA Series Technical Specifications

Table 1: WLA620 and WLA622 Mechanical and Compliance Specifications

Specification Description

Operating Frequency 802.11a:

Power Injector (WLA620) Input: 100-240 VAC, 47-63 Hz, 1.5 A

Power Injector (WLA622) Input: 90-240 VAC; 50/60 Hz

Physical Size (WLA620) 19.8 x 19.8 x 6.33 cm (7.8 x 7.8 x 2.49 in)

Physical Size (WLA622) 19.5 x 19 x 7.4 cm (7.68 x 7.48 x 2.91 in)

Weight (WLA620) 4.8 kg (10.58 lbs)

Weight (WLA622) 1.54 kg (3.4 lbs)

Temperature (WLA620) Operating: -33 to 55 °C (-27.4 to 131°F)

Temperature (WLA622) Operating: -30 to 55 °C (-22 to 131 °F)

Humidity 5% to 95% (non-condensing)

EMC Compliance (Class B) FCC Class B (US)

Radio Signal Certification FCC Part 15 15.407(b) (5 GHz)

Safety UL/cUL60950-1, IEC60950-1 (CB) and IEC60529 IP68 (NEMA250

Standards IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX,

5.15 GHz to 5.825 GHz based on country regulations

802.11b/g:

2.4 GHz to 2.4835 GHz based on country regulations

Output: 48 VDC, 1.2 A

Output: 48 Vdc/0.63A, 12Vdc/1A

Storage: -40 to 80 °C (-40 to 176 °F)

RTTED 1999/5/EC

DGT (Taiwan)

FCC Part 15.247 (2.4 GHz)

IC RSS-210

EN 300.328, EN 302.893

EN 300 826, EN 301.489-1, EN 301.489-17

ETSI 300.328; ETS 300 826 (802.11b)

6P)

IEEE 802.11a, b, g

Page 73

Table 2 lists the mechanical and compliance specifications for the WLA632.

Table 2: WLA632 Mechanical and Compliance Specifications

Specification Description

Maximum Channels (Outdoor)

Data Rates 802.11b/g/n Channel:

Modulation Types 802.11a: OFDM (BPSK, QPSK, 16-QAM, 64-QAM)

Each WLA632 will operate with a single base MAC Address, and will consume 64 sequential MAC Addresses after the base MAC address for a total of 32 addresses allocated per radio

1 CH ~ 11 CH (FCC)

1 CH ~ 13 CH (ETSI)

1 CH ~ 14 CHs (Japan) Channel 14 required for 11b

802.11a/n Channel:

FCC (20 channels): 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161, 165 (except for Hong Kong where 36-48 outdoor is allowed).

For indoor application only: channels 36-48.

EU (11 channels): 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140. For indoor application only: channels 36-48, 52-64+.

Japan (8 channels):

WLA Series Technical Specifications

802.11b/g: DSSS (DBPSK, DQPSK, CCK)

OFDM (BPSK, QPSK, 16-QAM, 64-QAM)

802.11n: DSSS (DBPSK, DQPSK, CCK)

OFDM (BPSK, QPSK, 16-QAM, 64-QAM)

Operating Frequency Radio 1 supports:

2.4 GHz to 2.4835 GHz: Channels 1 to 14.

Radio 2 supports:

5.15 GHz to 5.35 GHz: Channels 52 to 64 (36 to 48 for Hong Kong only as well as indoor application)

5.47 GHz to 5.725 GHz: Channels 100 to 140

5.75 to 5.85 GHz: Channels 149 to 165

Power Injector Input: 48Vdc

Wei ght  without bracket: 4.4 kgs (9.8 lbs)

 with wall mount bracket: 5.08 kgs (11.2 lbs)

 with bracket needed for small pole mount: kgs 5.4 (12 lbs)

 with brac ket and straps for large pole mount: 5.2 kgs (11.5 lbs)

Temperature Operating: -40 to 55°C (-40 to 131°F)

Storage: -40 to 70 °C (-40 to 158 °F)

Humidity OK Each WLA632 will operate with a single base MAC Address, and will consume 64

sequential MAC Addresses after the base MAC address for a total of 32 addresses allocated per radio

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WLA Series Technical Specifications

Table 2: WLA632 Mechanical and Compliance Specifications (continued)

Specification Description

EMC Compliance (Class B) USA : 47CFR(FCC) part 15 Subpart B - class B

Safety UL 60950-1

Federal Communications Commission Interference Statement (United States)

This equipment has been tested and found to comply with the limits for a Class B digit al device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

 Increase the separation between the equipment and receiver.  Connect the equipment into an outlet on a circuit different from that to which the

 Consult the dealer or an experienced radio/TV technician for help.

Canada: ICES 003, class B

EU&EFTA :ETSI EN55022: 1998 class B

Japan :VCCI (Japan) Class B

Australia:/New Zealand : AS/NZS CISPR 22 Class B

EU medical Directive EN 60601-1-2

CSA C22.2 No.60950-1-03

NEMA 4X

IP67

K44/K45 Surges

receiver is connected.

Caution: FCC Caution: Any changes or modifications not expressly approved by the party

responsible for compliance could void the user’s authority to operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

For product available in the USA/Canada market, only channel 1~11 can be operated. Selection of other channels is not possible.

This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter.

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WLA Series Technical Specifications

This device is going to be operated in 5.15~5.25GHz frequency ran ge, it is restricted in indoor environment only..

Caution: FCC Notice: To comply with FCC part 15 rules in the United States, the system

must be professionally installed to ensure compliance with the Part 15 certification. It is the responsibility of the operator and professional installer to ensure that only certified systems are deployed in the United States. The use of the system in any other combination (such as co-located antennas transmitting the same information) is expressly forbidden.

Caution: FCC Radiation Exposure Statement: This equipment complies with FCC

radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body

Caution: System Administrators and anyone involved in the installation of the WLAN

System are responsible for the proper setup and operation in accordance to all rules and regulations of the country in which the equipment operates.

Canadian Department of Communications Industry Canada Notice (Canada)

This digital apparatus meets the requirements of Canadian Interference-Causing Equipment Regulation RSS-210.

This Class B digital apparatus complies with Canadian ICES-003. Operation is subject to the following two conditions:

1. This device may not cause interference.

2. This device must accept any interference, including interference that may cause

undesired operation of the device.

Cet appareil numérique de la classe B conforme á la norme NMB-003 du Canada. Country Code Statement: For product available in the USA/Canada market, only

channel 1~11 can be operated. Selection of other channels is not possible. This device and its antenna(s) must not be co-located or operation in conjunction with

any other antenna or transmitter. To reduce potential radio interference to other users, the antenna type and its gain

should be so chosen that the equivalent isotropically radiated power (e.i.r.p) is not more than that permitted for successful communication.

This device has been designed to operate with the antennas listed below, and having a maximum gain of [23.5] dB. Antennas not included in this list or having a gain greater than [23.5] dB are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.

The device could automatically discontinue transmission in case of absence of information to transmit, or operational failure. Note that this is not intended to prohibit transmission of control or signaling information or the use of repetitive codes where required by the technology.

The device for the band 5150-5250 MHz is only for indoor usag e to reduce potential fo r harmful interference to co-channel mobile satellite systems.

The maximum antenna gain permitted (for devices in the band 5725-5825 MHz) to comply with the e.i.r.p. limits specified for po int-to-point and non point-to- point operation as appropriate, as stated in section A9.2(3).

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WLA Series Technical Specifications

The maximum antenna gain permitted (for devices in the bands 5250-5350 MHz and 5470-5725 MHz) to comply with the e.i.r.p. limit.

High-power radars are allocated as primary users (meaning they have priority) of the bands 5250-5350 MHz and 5650-5850 MHz and these radars could cause interfere nce and/or damage to LE-LAN devices.

Caution: IC Radiation Exposure Statement: This equipment complies with IC RSS-102

radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

MAC Addresses

Each WLA is assigned a unique block of 64 MAC addresses. Each radio has 32 MAC addresses and can therefore support up to 32 SSIDs, with one MAC address assigned to each SSID as its BSSID.

The WLA ’s MAC addr ess block is listed on a label on the back of the WLA. If the WLA is already deployed and running on the network, you can display the MAC address assignments by using the show {ap | dap} status command.

All MAC addresses on a WLA are assigned based on the WLA’s base MAC address, as described in Table 3.

Table 3: MAC Address Allocations on WLA620, WLA622, and WLA632

The WLA has a base MAC address. All the other addresses are assigned based on this

WLA base MAC Address

Ethernet Port MAC Addresses  The Ethernet port equals the WLA base MAC address.

802.11a Radio and SSID MAC Addresses

802.11b/g Radio and SSID MAC Addresses

address.

 The 802.11a radio equals the WLA base MAC address + 1.

 The BSSIDs for the SSIDs configured on the 802.11a radio end in odd numbers. The first BSSID is

equal to the WLA’s base MAC address + 1. The next BSSID is equal to the WLA’s base MAC address + 3, and so on.

 The 802.11b/g radio equals the WLA base MAC address.

 The BSSIDs for the SSIDs configured on the 802.11b/g radio end in even numbers. The first BSSID is

equal to the WLA’s base MAC address. The next BSSID is equal to the WLA’s base MAC address + 2, and so on.

Antenna Specifications for WLA620 and WLA622

8 dBi Omnidirectional (2.4 GHz)

Page 77

Table 4: 8 dBi Omnidirectional (2.4 GHz) Antenna Specifications

Specification Description

Model Number ANT-1360-OUT

Frequency Range 2.400 - 2.500 GHz

Gain 8 dBi

VSWR 2.0: 1 max

Polarization Linear, vertical

HPBW Horizontal: 360°

Downtilt 0°

Power Handling 50 W (cw)

Impedance 50 Ohms

Connector N type, male

Radome Material: Fiber glass

Color: Gray-white

Environmental Survival Wind Speed: 216 km/hr (134 mph)

Temperature: -40° C to 80° C (-40° F to 176° F)

Humidity: 95% @ 25 °C (77° F)

Mechanical Dimensions: 58 x 2.1 cm (diameter) (22.8 x 0.82 in)

Weight: 200 g (0.44 lbs)

WLA Series Technical Specifications

8 dBi Omnidirectional (5 GHz)

Table 5: 8 dBi Omnidirectional (5 GHz) Antenna Specifications

Specification Description

Model Number ANT-5360-OUT

Frequency Range 5.725 - 5.875 GHz

Gain 8 dBi

VSWR 2.0 : 1 max

Polarization Linear, vertical

HPBW Horizontal: 360°

Downtilt 0°

Power Handling 5 W (cw)

Impedance 50 Ohms

Connector N type, female

Radome Material: Fiber glass

Color: Gray-white

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WLA Series Technical Specifications

Table 5: 8 dBi Omnidirectional (5 GHz) Antenna Specifications

Specification Description

Environmental Survival Wind Speed: 216 km/hr (134 mph)

Mechanical Dimensions: 32.5 x 2.2 cm diameter (12.8 x 8.6 in)

13.5 dBi 120-Degree Sector

Temperature: -40 °C to 80 °C (-40° F to 176° F)

Humidity: 95% @ 25 °C (77° F)

Weight: 1100 g (2.4 lbs)

Table 6: 13.5 dBi 120-Degree Sector Antenna Specifications

Specification Description

Model Number ANT-5120-OUT

Frequency Range 5.150 - 5.875 GHz

Gain 13.5 dBi

VSWR 2.0 : 1 max

Polarization Linear, vertical

HPBW Horizontal: 120°

Ver tic al: 6°

Downtilt 0°

Power Handling 5 W (cw)

Impedance 50 Ohms

Connector N type, female

Radome Material: ABS

Color: Gray, white

Environmental Survival Wind Speed: 216 km/hr (134 mph)

Temperature: -40 °C to 80 °C (-40° F to 176° F)

Humidity: 95% @ 25 °C (77° F)

Mechanical Dimensions: 62 x 8.8 x 7 cm (24.4 x 3.46 x 2.76 in)

Weigh t: 590 g (1.3 lbs)

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10 dBi 120-Degree Sector

Table 7: 10 dBi 120-Degree Sector Antenna Specifications

Specification Description

Model Number ANT-1120-OUT

Frequency Range 2.4 - 2.5 GHz

Gain 10 dBi

VSWR 2.0 : 1 max

Polarization Linear, vertical

HPBW Horizontal: 120°

Ver tic al: 15 °

Downtilt 0°

Power Handling 10 W (cw)

Impedance 50 Ohms

Connector N type, female

Radome Material: ABS

Color: Gray, white

Environmental Survival Wind Speed: 216 km/hr (134 mph)

Temperature: -40 °C to 80 °C (-40° F to 176° F)

Humidity: 95% @ 25 °C (77° F)

Mechanical Dimensions: 75 x 8.8 x 7 cm (29.5 x 3.46 x 2.76 in)

Weight: 700 g (1.5 lbs)

WLA Series Technical Specifications

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WLA Series Technical Specifications

18 dBi 18-Degree Panel

Table 8: 18 dBi 18-Degree Panel Antenna Specifications

Specification Description

Frequency Range 4.9 - 5.875 GHz

Gain 18 dBi

VSWR 2.0 : 1 max

Polar izatio n Linear, vertical

HPBW Horizontal: 18°

Downtilt 0°

Power Handling 5 W (cw)

Impedance 50 Ohms

Connector N type, female

Radome Material: ABS

Environmental Survival Wind Speed: 216 km/hr (134 mph)

Mechanical Dimensions: 21.5 x 20 x 5 cm (8.46 x 7.87 x 1.97 in)

Ver tic al: 18 °

Color: Gray, white

Temperature: -40 °C to 80 °C (-40° F to 176° F)

Humidity: 95% @ 25 °C (77° F)

Weigh t: 825 g ( 1. 82 lbs)

Signal Loss from Lightning Protector and Coaxial Cable

Table 9: Signal Loss Levels from Lightning Protector and Coaxial Cable

Loss from Lightning

Frequency

2.4 GHz 0.08 dBi 0.75 dBi 0.59 dBi

5.5 GHz 0.25 dBi 1.17 dBi 0.89 dBi

Protector

Loss from 3m cable

Loss from

1.8m cable

Page 81

Antenna Specifications for WLA632

This section describes external antenna options and supported configurations for the WLA632. Antenna Connectors 1, 2, and 3 are positioned on the top of the WLA632. The connectors are labeled from left to right, when viewed from the front.

Antenna Connectors 4, 5, and 6 are positioned on the bottom of the WLA632. The connectors are labeled accordingly, from left to right, when viewed from the front.

The table below lists the external user-accessible connectors that are required on the WLA632. A watertight RJ45 is an acceptable alternative to the circular DIN connector for the Ethernet interface.

Table 10: WLA632 Antenna Specifications

Conn Name Connector Type Use Label

Antenna 1 N-Type Jack 1st Antenna Element for

Radio 1

Antenna 2 N-Type Jack 2nd Antenna Element for

Radio 1

Antenna 3 N-Type Jack 3rd Antenna Element for

Radio 1

Antenna 4 N-Type Jack 1st Antenna Element for

Radio 1

Antenna 5 N-Type Jack 2nd Antenna Element for

Radio 1

Antenna 6 N-Type Jack 3rd Antenna Element for

Radio 1

48 VDC IP67 multipin

DIN connector

Ethernet Weat her-t igh t RJ45 802.3 10/100/1000 Ethernet

Ground Anti-rotational Lightning surge ground Safety Gnd

48VDC power input Pwr In

data input only

2.4GHZ Ant 1

2.4GHZ Ant 2

2.4GHZ Ant 3

5GHZ Ant 4

5GHZ Ant 5

5GHZ Ant 6

Ethernet

WLA Series Technical Specifications

Multi-element antennas (an antenna with multiple antenna elements) have multiple antenna cables, one for each antenna element. Some single-element omni stick antennas, on the other hand, do not require an antenna cable in order to attach to an antenna connector.

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WLA Series Technical Specifications

WLA632

The figure below shows an WLA632 with three single-element antennas connected to the 2.4GHz radio and one dual-eleme nt antenna connected to the 5GHz radio.

Table 11: Juniper Supported Antennas

Each radio may be independently configured for operation. Antenna configuration options do not depend upon whether 802.11a/b/g or 802.11n modes are specifically enabled or disabled.

When more than one antenna is connected to a ra dio , all an te nn a s con ne ct ed to tha t radio must be the same type. The mixing of diff erent antenna types on a specific radio is prohibited.

However, th e antennas used on radio 1 can be different than the antennas used on radio 2.

For each radio, the number of antenna elements in use will be identical to the number of antenna connectors in use. It is important to understand that the number of antennas for a given radio and the number of antenna eleme nts (and antenna connectors) in use for that radio are not necessarily the same. The figu re show n ab o ve de m on s t ra te s tha t there are three antennas in use for radio 1, and there are also three antenna elements in use for radio 1. There is only one antenna in use for radio 2, while there are two antenna elements in use for radio 2.

Supported Antennas

The table below lists the Juniper Networks supported antenna configurations.

Number of Antennas

ANT Model Band

ANT-7360A-OUT 2.4GHz 3 Conn 1,2, & 3 Dual-band Omni 3x3

5GHz 3 Conn 4,5, & 6 3x3

ANT-74520-OUT 2.4GHz 1 Conn 1,2, & 3 Dual-band,

5GHz 1 Conn 4,5, & 6 3x3

in Use

Connector Ports in Use

Antenna Type 11n Mode

3x3 Tri element, Directional Panel

Page 83

Table 11: Juniper Supported Antennas

WLA Series Technical Specifications

Number of Antennas

ANT Model Band

ANT-77555-OUT 2.4GHz 1 Conn 1,2, & 3 Dual-band,

5GHz 1 Conn 4,5, & 6 3x3

ANT-5007-OUT 5GHz 1 Conn 4 & 6 Single-band,

in Use

Connector Ports in Use

Antenna Type 11n Mode

Tri element, Directional Panel

Dual-element, Directional Panel

WLA632 Mechanical and Compliance Specifications RSSI Meter Functionality

The WLA632 supports an LED-based RSSI indicator when either radio operates in mesh link calibration mode. When mesh link calibration is enabled, the WLA transmits calibration packets and WLAs that can receive these packets use LED patterns to indicate the RSSI level of received calibration packets (the WLA620 must be conne cted to an external RSSI meter to measure RSSI levels). Each RSSI level represents about a 5dBm range. It is recommended to enable the link calibration on the Portal and align the Mesh WLA antenna to have the highest RSSI levels. The RSSI reading must be able to support the indication of received signal levels across a 35dB dynamic range, from a high of -60 dBm to a low of -95 dBm.

The RSSI is indicated by on/of f/flashing LED p atterns, as shown in th e ta ble below. The granularity varies between 2dBm, 3dBm, and 6dBm.

Table 12: 5G Ch.36

3x3

2x3

LED 1 LED 2 LED 3 RSSI

Off Off Off No signal

Flashing Slow Off Off

Flashing Fast Off Off

On Off Off

On Flashing Slow Off Low signal

On Flashing Fast Off

On On Off

On On Flashing Slow

On On Flashing Fast

On On On Strong signal

Ver y low si gn al

Operational signal

Table 13: 2.4G Ch.13

LED 1 LED 2 LED 3 RSSI

Off Off Off No signal

Flashing Slow Off Off

Flashing Fast Off Off

On Off Off

On Flashing Slow Off Low signal

On Flashing Fast Off

Ver y low si gn al

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WLA Series Technical Specifications

Table 13: 2.4G Ch.13

LED 1 LED 2 LED 3 RSSI

On On Off

On On Flashing Slow

On On Flashing Fast

On On On Strong signal

Operational signal

Page 85

Cables and Pinouts

This chapter describes the wiring and pin assignments for the cables and conn ectors that can be used with the WLA620, WLA622 and WLA632.

Twisted-Pair Cable Assignments for the WLA620 and WLA622

For 10/100BASE-TX connections, a twisted-pair cable must have two pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be green and the other, green with white stripes. Also, an RJ45 connector must be attached to both ends of the cable.

Caution: Each wire pair must be attached to the RJ45 connectors in a specific orientation.

Caution: Never plug a phone jack connector into a power injector RJ45 port. Use only

twisted-pair cables with RJ45 connectors that conform with FCC standards.

Caution: Any additional cabling used in the assembly should be a minimum UL CMX

outdoor-rated or equivalent.

The following figure illustrates how the pins on the RJ45 connector are numbered. Be sure to hold the connectors in the same orientation when attaching the wires to the pins.

Figure 5–1. Pin Numbering on RJ45 Connector

10/100BASE-TX Pin Assignments

Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ45 connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure length of any twisted-pair connection does not exceed 100 meters (328 feet).

that the

Page 86

Cables and Pinouts

White/Orange Stripe

Orange

White/Green Stripe

Green

1 2 3 4 5 6 7 8

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Straight-through Cable

End A

End B

Blue

White/Blue Stripe

Brown

White/Brown Stripe

Table 1: 10/100BASE-TX MDI and MDI-X Port Pinouts

The RJ45 Input port on the power injector is wired with MDI pinouts. This means that you must use crossover cables for connections to PCs or servers, and straight-through cable for connections to switches or hubs. However, when connecting to devices that support automatic MDI/MDI-X pinout configuration, you can use either straight-through or crossover cable.

Pin MDI-X Signal Name MDI Signal Name

1 Receive Data plus (RD+) Transmit Data plus

(TD+)

2 Rece ive Data minus

(RD-)

3 Transmit Data plus

(TD+)

6 Transmit Data minus

(TD-)

4,5,7,8 Not used Not used

1 Receive Data plus (RD+) Tran sm it Da ta plu s

2Receive Data minus

(RD-)

Note: The “+” and “-” signs represent the polarity of the wires that make up each wire pair.

Transmit Data minus (TD-)

Receive Data plus (RD+)

Receive Data minus (RD-)

(TD+)

Transmit Data minus (TD-)

Straight-Through Wiring

Because the 10/100 Mbps Input port on the power injector uses an MDI pin configuration, you must use “straight-through” cable for network connection s to hubs or switches that only have MDI-X ports. However, if the device to which you are connecting supports automatic MDI/MDI-X operation, you can use either “straight-through” or “crossover” cable.

Figure 5–2. Straight-Through Cable Wiring

Crossover Wiring

Because the 10/100 Mbps port on the power injector uses an MDI pin configuration, you must use “crossover” cable for network connections to PCs, servers or other end nodes that only have MDI ports. However, if the device to which you are connecting supports automatic MDI/MDI-X operation, you can use either “straight-through” or “cr ossover” cable.

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Cables and Pinouts

White/Orange Stripe

Orange

White/Green Stripe

1 2 3 4 5 6 7 8

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Crossover Cable

End A

End B

Green

Blue

White/Blue Stripe

Brown

White/Brown Stripe

Figure 5–3. Crossover Cable Wiring

8-Pin DIN Connector Pinout for the WLA620 and WLA622

The Ethernet cable from the power injector connects to an 8-pin DIN connector on the WLA620 and WLA622. This connector is described in the following figure and table.

Figure 5–4. 8-Pin Ethernet DIN Connector

Table 2: 8-Pin DIN Ethernet Port Pinout

Pin Signal Name

1 Transmit Data plus (TD+)

2 Transmit Data minus (TD-)

3Receive Data plus (RD+)

4 +48 VDC power

5+48 VDC power

6 Receive Data minus (RD-)

7Return power

8 Return power

Note: The “+” and “-” signs represent the polarity of the wires that make up each wire pair.

Page 88

Cables and Pinouts

White/Orange Stripe

Orange

White/Green Stripe

Green

1 2 3 4 5 6 7 8

8-Pin DIN

Female

RJ-45

White/Blue Stripe

White/Brown Stripe

Brown

Blue

8-Pin DIN Female

Front View

8-Pin DIN to RJ45 Cable Wiring

To construct an extended Ethernet cable to connect from the power injector’s RJ45 Output port to the WLA620 and WLA622’s 8-pin DIN connector, follow the wiring diagram below. Use Category 5 or better UTP or STP cable, maximum length 100 m (328 ft), and be sure to connect all four wire pairs.

Informational Note: To construct a reliable Ethernet cable, always use the proper tools or

ask a professional cable supplier to construct the cable. Any additional cabling used in the assembly should be a minimum UL CMX outdoor-rated or equivalent.

WLA632 External Connectors

The WLA632 accepts power from the WLA-XPS9001GO outdoor power supply using the IP67 multi-pin DIN connector . The WLA632 accepts separ ate primary 48VDC power input and Ethernet signal from separate 48VDC and Ethernet input connectors.

Caution: The WLA622 and WLA632 must only be used with a Juniper

Networks-approved WLA-XPS9001GO outdoor power supply in order to prevent possible damage to the unit.

Figure 5–5. 8-Pin DIN to RJ45 Cable Wiring

The WLA632 48VDC / Ethernet inputs provide primary and secondary lightning protection on all conductors. The 48VDC / Ethernet inputs to the WLA632 require lightning protection because the power supply can be up to 100m away.

Ethernet

The WLA632 supports a single IEEE 802.3-compliant auto-sensing 10/100/1000BaseT Ethernet interface on the Ethernet input connector. It should be configured as auto MDI/MDIX.

The Ethernet interface supports a cable length of at least 100m over CAT5, CAT5e, or CAT6 cable.

A watertight RJ45RJ45 is an acceptable alternative to the circular DIN connector fo r the Ethernet interface.

The Ethernet cable from the power injector connects to an 8-pin DIN connector on the WLA620 and WLA622. This connector is described in the following figure and table.

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Cables and Pinouts

Figure 5–6. 8-Pin Ethernet DIN Connector

Table 3: 8-Pin DIN Ethernet Port Pinout

Pin Signal Name

1 Transmit/Receive Data plus

(TD/+/RD/+)

2 Transmit/Receive Data minus

(TD/-/RD/-)

3 Transmit/Receive Data plus

(TD+/RD-)

4 +48 VDC power 3+

5 +48 VDC power 3-

6 Receive Data minus (RD-)

7Return power 4+

8 Return power 4-

Note: The “+” and “-” signs represent the polarity of the wires that make up each wire pair.

Page 90

Cables and Pinouts

Page 91

Wireless Bridge Link Planning

The WLA620, WLA622, and WLA632 support fixed point-to-point or point-to-multipoint wireless links. A single link between two points can be used to connect a remote site to a larger core network. Multiple bridge links can provide a way to connect widespread Ethernet LANs.

For each link in a wireless bridge network to be reliable and provide optimum performance, some careful site planning is required. This chapter provides guidance and information for planning your wireless bridge links.

Informational Note: The planning and installation of a wireless bridge link requires

professional personnel that are trained in the installation of radio transmitting equipment. The user is responsible for compliance with local regulations concerning items such as antenna power, use of lightning arrestors, grounding, and radio mast or tower construction. Therefore, it is recommended to consult a professional contractor knowledgeable in local radio regulations prior to equipment installation.

Caution: System Administrators and anyone involved in the installation of the WLAN

System are responsible for the proper setup and operation in accordance to all rules and regulations of the country in which the equipment operates

Radio Path Planning

Although the WLA620 uses IEEE 802.11a radio technology, which is capable of reducing the effect of multipath signals due to obstructions, the wireless bridge link requires a “radio line-of-sight” between the two antennas for optimum performance.

The concept of radio line-of-sight involves the area along a radio link path through which the bulk of the radio signal power travels. This area is known as the first Fresnel Zone of the radio link. For a radio link not to be affected b y obsta cles along it s path , no object, including the ground, must intrude within 60% of the first Fresnel Zone.

Page 92

Wireless Bridge Link Planning

Visual Line of Sight

Radio Line of Sight

The following figure illustrates the concept of a good radio line-of-sight. Figure 6–1. Radio Line-of-Sight

If there are obstacles in the radio path, there may still be a radio link but the quality and strength of the signal will be affected. Calculating the maximum clearance from objects on a path is important as it directly affects the decision on antenna placement and height. It is especially critical for long-distance links, where the radio signal could easily be lost.

Informational Note: For wireless links less than 500 m, the IEEE 802.11a radio signal will

tolerate some obstacles in the path and may not even require a visual line of sight between the antennas.

When planning the radio path for a wireless bridge link, consider these factors:

 Avoid any partial line-of-sight between the antennas.  Be cautious of trees or other foliage that may be near the path, or may grow and

obstruct the path.

 Be sure there is enough clearance from buildings and that no building construction

may eventually block the path.

 Check the topology of the land between the antennas using topogra phical maps,

aerial photos, or even satellite image data (software packages are available that may include this information for your area)

 Avoid a path that may incur temporary blockage due to the movement of cars, trains,

or aircraft.

Antenna Height

A reliable wireless link is usually best achieved by mounting the antennas at each end high enough for a clear radio line of sight between them. The minimum height required depends on the distance of the link, obstacles that may be in the path, topology of the terrain, and the curvature of the earth (for links over 3 miles).

Page 93

For long-distance links, a mast or pole may need to be constructed to attain the

Visual Line of Sight

Radio Line of Sight

minimum required height. Use the following table to estimate the required minimum clearance above the ground or path obstruction (for 5 GHz bridge links).

Table 1: Required Clearance Above Obstructions

Wireless Bridge Link Planning

Max Clearance for 60% of First Fresnel

Tot a l L in k D is t an ce

402 m (0.25 mile) 1.4 m (4.5 ft) 0 1.4 m (4.5 ft)

805 m (0.5 mile)

1.6 km (1 mile) 2.7 m (9 ft) 0 2.7 m (9 ft)

3.2 km (2 miles) 3.9 m (12.7 ft) 0 3.9 m (12.7 ft)

4.8 km (3 miles) 4.8 m (15.6 ft) 0.5 m (1.8 ft) 5.3 m (17.4 ft)

6.4 km (4 miles) 5.5 m (18 ft) 1.0 m (3.2 ft) 6.5 m (21.2 ft)

8 km (5 miles) 6.1 m (20 ft) 1.5 m (5 ft) 7.6 m (25 ft)

11.3 km (7 miles) 7.3 m ( 24 f t) 3.0 m (9.8 ft) 10.3 m (33.8 ft)

14.5 km (9 miles) 8.2 m (27 ft) 4.9 m (16 ft) 13.1 m (43 ft)

19.3 km (12 miles) 9.5 m ( 31 ft) 8.8 m (29 ft) 18.3 m (60 ft)

24.1 km (15 miles) 10.7 m(35 ft) 13.7 m (45 ft) 24.4 m (80 ft)

27.4 km (17 miles) 11.3 m(37 ft) 17.7 m (58 ft) 29 m (95 ft)

Zone at 5.8 GHz

1.95 m (6.4 ft)

Approximate Clearance for Earth Curvature

0 1.95 m (6.4 ft)

Tot a l C lea r a nc e Required at Mid-point of Link

To avoid any obstruction along the path, the height of the object must be added to the minimum clearance required for a clear radio line-of-sight. Con sider the following simple example, illustrated in the figure below.

Figure 6–2. Establishing a Clear Line-of-Sight

3 m iles (4.8 km)

2.4 m

20 m

17 m

5.4 m

1.4 m

12 m

Example

A wireless bridge link is deployed to connect building A to a building B, which is located

4.8 km (3 miles) away . Midway between the two buildings is a small tree-covered hill. From the above table it can be seen that for a three-mile link, the object clearance required at the mid-point is 5.3 m (17.4 ft). The treetops on the hill are at an elevation of 17 m (56 ft), so the antennas at each end of the link need to be at least 22.3 m (73 ft) high. Building A is six stories high, or 20 m (66 ft), so a 2.3 m (7.5 ft) mast or pole must be constructed on its roof to achieve the required antenna height. Building B is only three stories high, or 9 m (30 ft), but is located at an elevation that is 12 m (39 ft) higher

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Wireless Bridge Link Planning

Radio Interference

than building A. To mount an antenna at the required height on building B, a mast or pole of only 1.3 m (4.3 ft) is needed.

Caution: Never construct a radio mast, pole, or tower near overhead power lines.

Informational Note: Local regulations may limit or prevent construction of a high radio

mast or tower. If your wireless bridge link requires a high radio mast or tower, consult a professional contractor for advice.

The avoidance of radio interference is an important part of wireless link planning. Interference is caused by other radio transmissions using the same or an adjacent channel frequency. Y ou should first scan your proposed site using a spectrum analyzer to determine if there are any strong radio signals using the 802.11a channel frequencies. Always use a channel frequency that is furthest away from another signal.

If radio interference is still a problem with your wireless bridge link, changing the antenna polarization direction may improve the situation.

Weather Conditions

When planning an WLA620, WLA622, or WLA632 installation, you must take into account any extreme weather conditions that are known to affect your location. Consider the following factors:

Temperature

Operating a WLA in temperatures outside of the supporte d range may cause the unit to fail.

 The WLA620 is tested for normal operation in temperatures from -33°C to 55°C

(-27.4° to 131°F).

 The WLA622 is tested for normal operation in tem peratures from -30° to 55 °C (-22°

to 131°F).

 The WLA632 is tested for an ambient operating temperature range of -40°C to +

50°C. (-40 to 122°F)

Wind Velocity

You must consider the known maximum wind velocity and direction at the site and be sure that any supporting structure, such as a pole, mast, or tower, is built to withstand this force.

 The WLA620 can operate in winds up to 144 km/h (90 mph) sand survive higher wind

speeds up to 125 mph.

 The WLA622 can operate in winds up to 201 km/h (90 mph) and sur vive higher wind

speeds up to 125 mph.

 The WLA632 can operate in winds up to 265 km/h (165 mph) gusts (>100 mph

sustained).

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Wireless Bridge Link Planning

Lightning

Rain

 The WLA620 and WLA622 units are weatherproofed against rain . Also, prolonged

 The WLA632 weatherproof enclosure is designed to protect against dust, rain, and

water jets.

Snow and Ice

 Falling snow, like rain, has no significant effect on the radio signal. However, a build

up of snow or ice on antennas may cause a degradation in performance. In this case, the snow or ice has to be cleared from the antennas to restore proper operation of the unit.

Ethernet Cabling

When you have determined a suitable location for the WLA620, WLA622, or WLA632, you must plan a cable route from the WLA outdoors to the power injector module indoors. Consider these points:

 The Ethernet cable length should never be longer than 100 m (328 ft) over CAT5,

CAT5e, or CAT6 cable.

 Determine a building entry point for the cable.  Determine if conduits, bracing, or other structures are required for safety or

protection of the cable.

 For lightning protection at the power injector end of the cable, consider using a

lightning arrestor immediately before the cable enters the building.

Grounding

WLA620, WLA622, and WLA632

 It is important that the WLA620, WLA622 and WLA632 units, cables, lightning

arrestors, and any supporting structures are properly grounded. The WLA620 and WLA622 units include a grounding screw for att aching a ground wire. The WLA632 unit includes a two-hole grounding lug. Be sure that grounding is available and that it meets local and national electrical codes.

WLA622 Antenna Position and Orientation

Once the required antenna height has been determined, other factors affecting the precise position of the WLA622 must be considered:

 Be sure there are no other radio antennas within 2 m (6 ft) of the WLA622  Place the WLA622 away from power and telephone lines  Avoid placing the WLA622 too close to any metallic reflective surfaces, such as

roof-installed air-conditioning equip ment, tinted windows, wire fences, or water pipes

 The WLA622 antennas at both ends of the link must be positioned with the same

polarization direction, either horizontal or vertical

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Wireless Bridge Link Planning

Antenna Polarization — The WLA622’s integrated antenna sends a radio signal that is polarized in a particular direction. The antenna’s receive sensitivity is also higher for radio signals that have the same polarization. To maximize the performance of the wireless link, both antennas must be set to the same polarization direction. Ideally the antennas should be pointing upwards mounted on the top part of a pole.

Figure 6–3. Antenna Polarization Markings on the WLA622

WLA Radio Safety Advisories

Radio Frequency Exposure

Additional Radio Safety Advisories

For additional radio safety warnings, the Juniper Networks Regulatory Guide document.

Juniper WLA620, WLA622, WLA632 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual