Cambium Networks XN8 WIRELESS LAN ARRAY User Manual XN PDF

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Document ID	1071165
Application ID	qcsxXnz0vycVA/WMr1Khuw==
Document Description	XN Guide small 1 of 5 revised
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	164.86kB (2060713 bits)
Date Submitted	2009-02-20 00:00:00
Date Available	2009-03-06 00:00:00
Creation Date	2008-06-18 10:50:27
Producing Software	Acrobat Distiller 8.1.0 (Windows)
Document Lastmod	2008-09-16 20:15:03
Document Title	XN_PDF.book
Document Creator	FrameMaker 7.1
Document Author:	daves

June 10, 2008
Wi-Fi Array ™
XN16, XN8, XN4
All rights reserved. This document may not be reproduced or
disclosed in whole or in part by any means without the written
consent of Xirrus, Inc.
Trademarks
is a registered trademark of Xirrus, Inc. All other trademarks and brand
names are marks of their respective holders.
Notices
FCC Notice
This equipment has been tested and found to comply with the limits for a Class B
digital 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, you are
encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
Consult the dealer or an experienced wireless technician for help.
Use of a shielded twisted pair (STP) cable must be used for all Ethernet
connections in order to comply with EMC requirements.
RF Radiation Hazard Warning
To ensure compliance with FCC RF exposure requirements, this device must be
installed in a location where the antennas of the device will have a minimum
distance of at least 26cm
25 cm(10.2
(9.84 inches)
inches) from all persons. Using higher gain
antennas and types of antennas not certified for use with this product is not
allowed. The device shall not be co-located with another transmitter.
Non-Modification Statement
Unauthorized changes or modifications to the device are not permitted. Use only
the supplied internal antenna, or external antennas supplied by the manufacturer.
Modifications to the device will void the warranty and may violate FCC
regulations. Please go to the Xirrus Web site for a list of all approved antennas.
Indoor Use
This product has been designed for indoor use. Operation of channels in the
5150MHz to 5250MHz band is permitted indoors only to reduce the potential for
harmful interference to co-channel mobile satellite systems.
Cable Runs for Power over Gigabit Ethernet (PoGE)
If using PoGE, the Array must be connected to PoGE networks without routing
cabling to the outside plant—this ensures that cabling is not exposed to lightning
strikes or possible cross over from high voltage.
Battery Warning
Caution! The Array contains a battery which is not to be replaced by the customer.
Danger of Explosion exists if the battery is incorrectly replaced. Replace only with
the same or equivalent type recommended by the manufacturer. Dispose of used
batteries according to the manufacturer's instructions.
Power Cord
If you will be using the Array with a power cord, you must use a UL-Approved
cord. Order the power cord from the Xirrus product list—Xirrus supplies only
UL-approved power cords.
Maximum Antenna Gain
Currently, the maximum antenna gain for external antennas is limited to 2.5dBi
for operation in the 5150MHz to 5250MHz and 5725MHz to 5825MHz bands. The
antenna gains must not exceed maximum EIRP limits set by the FCC / Industry
Canada.
High Power Radars
High power radars are allocated as primary users (meaning they have priority) in
the 5150MHz to 5250MHz and 5725 MHz to 5825MHz bands. These radars could
cause interference and/or damage to LELAN devices used in Canada.
Industry Canada Notice and Marking
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
The term “IC:” before the radio certification number only signifies that Industry
Canada technical specifications were met.
To reduce potential radio interference to other users, the antenna type and its gain
should be so chosen that the equivalent isotropically radiated power (EIRP) is not
more than that required for successful communication.
EU Directive 1999/5/EC Compliance Information
This section contains compliance information for the Xirrus Wi-Fi Array family of
products, which includes the XN16, XN8, and XN4. The compliance information
contained in this section is relevant to the European Union and other countries
that have implemented the EU Directive 1999/5/EC.
Declaration of Conformity
Cesky [Czech] Toto zahzeni je v souladu se základnimi požadavky a
ostatnimi odpovidajcimi ustano veni mi Směrnice
1999/5/EC.
Dansk [Danish] Dette udstyr er i overensstemmelse med de
væsentlige krav og andre relevante bestemmelser i
Direktiv 1999/5/EF.
Deutsch [German] Dieses Gerat entspricht den grundlegenden
Anforderungen und den weiteren entsprechenden
Vorgaben der Richtinie 1999/5/EU.
Eesti [Estonian] See seande vastab direktiivi 1999/5/EU olulistele
nöuetele ja teistele as jakohastele sätetele.
English This equipment is in compliance with the essential
requirements and other relevant provisions of
Directive 1999/5/EC.
Español [Spain] Este equipo cump le con los requisitos esenciales asi
como con otras disposiciones de la Directiva 1999/5/
CE.
Ελληνυκη [Greek] Αυτόζ ο εξοπλτσμόζ είναι σε συμμόρφωση με τιζ
ουσιώδειζ απαιτήσειζ και ύλλεζ σχετικέζ διατάξειζ τηζ
Οδηγιαζ 1999/5/EC.
Français [French] Cet appareil est conforme aux exigences essentielles
et aux autres dispositions pertinentes de la Directive
1999/5/EC.
ĺslenska [Icelandic] Þetta tæki er samkvæmt grunnkröfum og öðrum
viðeigandi ákvæðum Tilskipunar 1999/5/EC.
Italiano [Italian] Questo apparato é conforme ai requisiti essenziali ed
agli altri principi sanciti dalla Direttiva 1999/5/CE.
Latviski [Latvian] Šī iekārta atbilst Direktīvas 1999/5/EK būtiskajā
prasībām un citiem ar to saistītajiem noteikumiem.
Lietuvių [Lithuanian] Šis įrenginys tenkina 1995/5/EB Direktyvos
esminius reikalavimus ir kitas šios direktyvos
nuostatas.
Nederlands [Dutch] Dit apparant voldoet aan de essentiele eisen en
andere van toepassing zijnde bepalingen van de
Richtlijn 1995/5/EC.
Malti [Maltese] Dan l-apparant huwa konformi mal-htigiet essenzjali
u l-provedimenti l-ohra rilevanti tad-Direttiva 1999/
5/EC.
Margyar [Hungarian] Ez a készülék teljesiti az alapvetö követelményeket
és más 1999/5/EK irányelvben meghatározott
vonatkozó rendelkezéseket.
Norsk [Norwegian] Dette utstyret er i samsvar med de grunnleggende
krav og andre relevante bestemmelser i EU-direktiv
1999/5/EF.
Polski [Polish] Urządzenie jest zgodne z ogólnymi wymaganiami
oraz sczególnymi mi warunkami określony mi
Dyrektywą. UE:1999/5/EC.
Portuguès [Portugese] Este equipamento está em conformidade com os
requisitos essenciais e outras provisões relevantes da
Directiva 1999/5/EC.
Slovensko [Slovenian] Ta naprava je skladna z bistvenimi zahtevami in
ostalimi relevantnimi popoji Direktive 1999/5/EC.
Slovensky [Slovak] Toto zariadenie je v zhode so základnými
požadavkami a inými prislušnými nariadeniami
direktiv: 1999/5/EC.
Suomi [Finnish] Tämä laite täyttää direktiivin 1999/5//EY olennaiset
vaatimukset ja on siinä asetettujen muiden laitetta
koskevien määräysten mukainen.
Svenska [Swedish] Denna utrustning är i överensstämmelse med de
väsentliga kraven och andra relevanta bestämmelser
i Direktiv 1999/5/EC.
Assessment Criteria
The following standards were applied during the assessment of the product
against the requirements of the Directive 1999/5/EC:
Radio: EN 301 893 and EN 300 328 (if applicable)
EMC: EN 301 489-1 and EN 301 489-17
Safety: EN 50371 to EN 50385 and EN 60601
CE Marking
For the Xirrus Wi-Fi Array (XN16, XN8, XN4), the CE mark and Class-2 identifier
opposite are affixed to the equipment and its packaging:
WEEE Compliance
Natural resources were used in the production
of this equipment.
This equipment may contain hazardous
substances that could impact the health of the
environment.
In order to avoid harm to the environment and
consumption of natural resources, we
encourage you to use appropriate take-back
systems when disposing of this equipment.
The appropriate take-back systems will reuse
or recycle most of the materials of this
equipment in a way that will not harm the
environment.
The crossed-out wheeled bin symbol (in
accordance with European Standard EN 50419)
invites you to use those take-back systems and
advises you not to combine the material with
refuse destined for a land fill.
If you need more information on collection, reuse and recycling systems, please contact your
local or regional waste administration.
Please contact Xirrus for specific information
on the environmental performance of our
National Restrictions
In the majority of the EU and other European countries, the 2.4 GHz and 5 GHz
bands have been made available for the use of Wireless LANs. The following table
provides an overview of the regulatory requirements in general that are
applicable for the 2.4 GHz and 5 GHz bands.
Frequency
Band (MHz)
Max Power Level
(EIRP) (mW)
Indoor
Outdoor
2400–2483.5
100
X**
5150–5250*
200
N/A
5470–5725*
1000
*Dynamic frequency selection and Transmit Power Control is required in these
frequency bands.
**France is indoor use only in the upper end of the band.
The requirements for any country may change at any time. Xirrus recommends
that you check with local authorities for the current status of their national
regulations for both 2.4 GHz and 5 GHz wireless LANs.
The following countries have additional requirements or restrictions than those
listed in the above table:
Belgium
The Belgian Institute for Postal Services and Telecommunications (BIPT) must
be notified of any outdoor wireless link having a range exceeding 300 meters.
Xirrus recommends checking at www.bipt.be for more details.
Draadloze verbindingen voor buitengebruik en met een reikwijdte van meer dan 300
meter dienen aangemeld te worden bij het Belgisch Instituut voor postdiensten en
telecommunicatie (BIPT). Zie www.bipt.be voor meer gegevens.
Les liasons sans fil pour une utilisation en extérieur d’une distance supérieure à 300
mèters doivent être notifiées à l’Institut Belge des services Postaux et des
Télécommunications (IBPT). Visitez www.bipt.be pour de plus amples détails.
Greece
A license from EETT is required for the outdoor operation in the 5470 MHz to
5725 MHz band. Xirrus recommends checking www.eett.gr for more details.
Η δη ιουργβάικτ ωνεξωτερικο ρουστη ζ νησυ νοτ των 5470–5725 ΜΗz ε ιτρ ετάιωνο
ετάά όάδειά της ΕΕΤΤ, ου ορηγεβτάι στερά ά ό σ φωνη γν η του ΓΕΕΘΑ. ερισσότερες
λε τομ ρειεωστο www.eett.gr
Italy
This product meets the National Radio Interface and the requirements
specified in the National Frequency Allocation Table for Italy. Unless this
wireless LAN product is operating within the boundaries of the owner’s
property, its use requires a “general authorization.” Please check with
www.communicazioni.it/it/ for more details.
Questo prodotto é conforme alla specifiche di Interfaccia Radio Nazionali e rispetta il
Piano Nazionale di ripartizione delle frequenze in Italia. Se non viene installato
all’interno del proprio fondo, l’utilizzo di prodotti wireless LAN richiede una
“autorizzazione Generale.” Consultare www.communicazioni.it/it/ per maggiori
dettagli.
Norway, Switzerland and Liechtenstein
Although Norway, Switzerland and Liechtenstein are not EU member states,
the EU Directive 1999/5/EC has also been implemented in those countries.
Calculating the Maximum Output Power
The regulatory limits for maximum output power are specified in EIRP (radiated
power). The EIRP level of a device can be calculated by adding the gain of the
antenna used (specified in dBi) to the output power available at the connector
(specified in dBm).
Antennas
The Xirrus Wi-Fi Array employs integrated antennas that cannot be removed and
which are not user accessible. Nevertheless, as regulatory limits are not the same
throughout the EU, users may need to adjust the conducted power setting for the
radio to meet the EIRP limits applicable in their country or region. Adjustments
can be made from the product’s management interface—either Web Management
Interface (WMI) or Command Line Interface (CLI).
Operating Frequency
The operating frequency in a wireless LAN is determined by the access point. As
such, it is important that the access point is correctly configured to meet the local
regulations. See National Restrictions in this section for more information.
If you still have questions regarding the compliance of Xirrus products or you
cannot find the information you are looking for, please contact us at:
Xirrus, Inc.
370 North Westlake Blvd, Suite 200
Westlake Village, CA 91362
USA
Tel: 1.805.497.0955
Fax: 1.805.449.1180
www.xirrus.com
Safety Warnings
Safety Warnings
Explosive Device Proximity Warning
Lightning Activity Warning
Circuit Breaker Warning
Read all user documentation before powering this device. All Xirrus
interconnected equipment should be contained indoors. This product is
not suitable for outdoor operation. Please verify the integrity of the
system ground prior to installing Xirrus equipment. Additionally,
verify that the ambient operating temperature does not exceed 50°C.
Do not operate the XN16/XN8/XN4 unit near unshielded blasting caps
or in an explosive environment unless the device has been modified to
be especially qualified for such use.
Do not work on the XN16/XN8/XN4 or connect or disconnect cables
during periods of lightning activity.
The XN16/XN8/XN4 relies on the building’s installation for over
current protection. Ensure that a fuse or circuit breaker no larger than
120 VAC, 15A (U.S.) or 240 VAC, 10A (International) is used on all
current-carrying conductors.
Translated safety warnings appear on the following page.
Translated Safety Warnings
Avertissements de Sécurité
Sécurité
Proximité d'appareils explosifs
Foudre
Disjoncteur
Lisez l'ensemble de la documentation utilisateur avant de mettre cet
appareil sous tension. Tous les équipements Xirrus interconnectés
doivent être installés en intérieur. Ce produit n'est pas conçu pour être
utilisé en extérieur. Veuillez vérifier l'intégrité de la terre du système
avant d'installer des équipements Xirrus. Vérifiez également que la
température de fonctionnement ambiante n'excède pas 50°C.
N'utilisez pas l'unité XN16/XN8/XN4 à proximité d'amorces non
blindées ou dans un environnement explosif, à moins que l'appareil
n'ait été spécifiquement modifié pour un tel usage.
N'utilisez pas l'unité XN16/XN8/XN4 et ne branchez pas ou ne
débranchez pas de câbles en cas de foudre.
L'unité XN16/XN8/XN4 dépend de l'installation du bâtiment pour ce
qui est de la protection contre les surintensités. Assurez-vous qu'un
fusible ou qu'un disjoncteur de 120 Vca, 15 A (États-Unis) ou de 240
Vca, 10 A (International) maximum est utilisé sur tous les conducteurs
de courant.
Software Warranty and License Agreement
THIS SOFTWARE LICENSE AGREEMENT (THE “AGREEMENT”) IS A LEGAL
AGREEMENT BETWEEN YOU (“CUSTOMER”) AND LICENSOR (AS DEFINED
BELOW) AND GOVERNS THE USE OF THE SOFTWARE INSTALLED ON THE
PRODUCT (AS DEFINED BELOW). IF YOU ARE AN EMPLOYEE OR AGENT
OF CUSTOMER, YOU HEREBY REPRESENT AND WARRANT TO LICENSOR
THAT YOU HAVE THE POWER AND AUTHORITY TO ACCEPT AND TO
BIND CUSTOMER TO THE TERMS AND CONDITIONS OF THIS AGREEMENT
(INCLUDING ANY THIRD PARTY TERMS SET FORTH HEREIN). IF YOU DO
NOT AGREE TO ALL OF THE TERMS OF THIS AGREEMENT RETURN THE
PRODUCT AND ALL ACCOMPANYING MATERIALS (INCLUDING ALL
DOCUMENTATION) TO THE RELEVANT VENDOR FOR A FULL REFUND OF
THE PURCHASE PRICE THEREFOR.
CUSTOMER UNDERSTANDS AND AGREES THAT USE OF THE SOFTWARE
SHALL BE DEEMED AN AGREEMENT TO THE TERMS AND CONDITIONS
GOVERNING SUCH SOFTWARE AND THAT CUSTOMER IS BOUND BY AND
BECOMES A PARTY TO THIS AGREEMENT.
1.
Definitions
1.1 “Documentation” means the user manuals and all other all
documentation, instructions or other similar materials accompanying the
Software covering the installation, application, and use thereof.
1.2 “Licensor” means XIRRUS and its suppliers.
1.3 “Product” means a multi-radio access point containing four or more
distinct radios capable of simultaneous operation on four or more nonoverlapping channels.
1.4 “Software” means, collectively, each of the application and embedded
software programs delivered to Customer in connection with this
Agreement. For purposes of this Agreement, the term Software shall be
deemed to include any and all Documentation and Updates provided
with or for the Software.
1.5 “Updates” means any bug-fix, maintenance or version release to the
Software that may be provided to Customer from Licensor pursuant to
this Agreement or pursuant to any separate maintenance and support
agreement entered into by and between Licensor and Customer.
2.
Grant of Rights
2.1 Software. Subject to the terms and conditions of this Agreement, Licensor
hereby grants to Customer a perpetual, non-exclusive, nonsublicenseable, non-transferable right and license to use the Software
solely as installed on the Product in accordance with the accompanying
Documentation and for no other purpose.
2.2 Ownership. The license granted under Sections 2.1 above with respect to
the Software does not constitute a transfer or sale of Licensor's or its
suppliers' ownership interest in or to the Software, which is solely
licensed to Customer. The Software is protected by both national and
international intellectual property laws and treaties. Except for the
express licenses granted to the Software, Licensor and its suppliers retain
all rights, title and interest in and to the Software, including (i) any and all
trade secrets, copyrights, patents and other proprietary rights therein or
thereto or (ii) any Marks (as defined in Section 2.3 below) used in
connection therewith. In no event shall Customer remove, efface or
otherwise obscure any Marks contained on or in the Software. All rights
not expressly granted herein are reserved by Licensor.
2.3 Copies. Customer shall not make any copies of the Software but shall be
permitted to make a reasonable number of copies of the related
Documentation. Whenever Customer copies or reproduces all or any part
of the Documentation, Customer shall reproduce all and not efface any
titles, trademark symbols, copyright symbols and legends, and other
proprietary markings or similar indicia of origin (“Marks”) on or in the
Documentation.
2.4 Restrictions. Customer shall not itself, or through any parent, subsidiary,
affiliate, agent or other third party (i) sell, rent, lease, license or
sublicense, assign or otherwise transfer the Software, or any of
Customer's rights and obligations under this Agreement except as
expressly permitted herein; (ii) decompile, disassemble, or reverse
engineer the Software, in whole or in part, provided that in those
jurisdictions in which a total prohibition on any reverse engineering is
prohibited as a matter of law and such prohibition is not cured by the fact
that this Agreement is subject to the laws of the State of California,
Licensor agrees to grant Customer, upon Customer's written request to
Licensor, a limited reverse engineering license to permit interoperability
of the Software with other software or code used by Customer; (iii) allow
access to the Software by any user other than by Customer's employees
and contractors who are bound in writing to confidentiality and non-use
restrictions at least as protective as those set forth herein; (iv) except as
expressly set forth herein, write or develop any derivative software or
any other software program based upon the Software; or (v) use any
computer software or hardware which is designated to defeat any copy
protection or other use limiting device, including any device intended to
limit the number of users or devices accessing the Product.
3.
Limited Warranty and Limitation of Liability
3.1 Limited Warranty & Exclusions. Licensor warrants that the Software will
perform in substantial accordance with the specifications therefor set
forth in the Documentation for a period of ninety [90] days after
Customer's acceptance of the terms of this Agreement with respect to the
Software (“Warranty Period”). If during the Warranty Period the
Software does not perform as warranted, Licensor shall, at its option,
correct the relevant Software giving rise to such breach of performance or
replace such Software free of charge. THE FOREGOING ARE
CUSTOMER'S SOLE AND EXCLUSIVE REMEDIES FOR BREACH OF
THE FOREGOING WARRANTY. THE WARRANTY SET FORTH
ABOVE IS MADE TO AND FOR THE BENEFIT OF CUSTOMER ONLY.
The warranty will apply only if (i) the Software has been used at all times
and in accordance with the instructions for use set forth in the
Documentation and this Agreement; (ii) no modification, alteration or
addition has been made to the Software by persons other than Licensor or
Licensor's authorized representative; and (iii) the Software or Product on
which the Software is installed has not been subject to any unusual
electrical charge.
3.2 DISCLAIMER. EXCEPT AS EXPRESSLY STATED IN THIS SECTION 3,
ALL ADDITIONAL CONDITIONS, REPRESENTATIONS, AND
WARRANTIES, WHETHER IMPLIED, STATUTORY OR OTHERWISE,
INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES
OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, SATISFACTORY QUALITY, ACCURACY,
AGAINST INFRINGEMENT OR ARISING FROM A COURSE OF
DEALING, USAGE, OR TRADE PRACTICE, ARE HEREBY
DISCLAIMED BY LICENSOR AND ITS SUPPLIERS. THIS DISCLAIMER
SHALL APPLY EVEN IF ANY EXPRESS WARRANTY AND LIMITED
REMEDY OFFERED BY LICENSOR FAILS OF ITS ESSENTIAL
PURPOSE. ALL WARRANTIES PROVIDED BY LICENSOR ARE
SUBJECT TO THE LIMITATIONS OF LIABILITY SET FORTH IN THIS
AGREEMENT.
3.3 HAZARDOUS APPLICATIONS. THE SOFTWARE IS NOT DESIGNED
OR INTENDED FOR USE IN HAZARDOUS ENVIRONMENTS
REQUIRING FAIL SAFE PERFORMANCE, SUCH AS IN THE
OPERATION OF A NUCLEAR FACILITY, AIRCRAFT NAVIGATION OR
COMMUNICATIONS SYSTEMS, AIR TRAFFIC CONTROLS OR OTHER
DEVICES OR SYSTEMS IN WHICH A MALFUNCTION OF THE
SOFTWARE WOULD RESULT IN FORESEEABLE RISK OF INJURY OR
DEATH TO THE OPERATOR OF THE DEVICE OR SYSTEM OR TO
OTHERS (“HAZARDOUS APPLICATIONS”). CUSTOMER ASSUMES
ANY AND ALL RISKS, INJURIES, LOSSES, CLAIMS AND ANY OTHER
LIABILITIES ARISING OUT OF THE USE OF THE SOFTWARE IN ANY
HAZARDOUS APPLICATIONS.
3.4 Limitation of Liability.
(a) TOTAL LIABILITY. NOTWITHSTANDING ANYTHING ELSE
HEREIN, ALL LIABILITY OF LICENSOR AND ITS SUPPLIERS
UNDER THIS AGREEMENT SHALL BE LIMITED TO THE
AMOUNT PAID BY CUSTOMER FOR THE RELEVANT
SOFTWARE, OR PORTION THEREOF, THAT GAVE RISE TO SUCH
LIABILITY OR ONE HUNDRED UNITED STATES DOLLARS
(US$100), WHICHEVER IS GREATER. THE LIABILITY OF
LICENSOR AND ITS SUPPLIERS UNDER THIS SECTION SHALL
BE CUMULATIVE AND NOT PER INCIDENT.
(b) DAMAGES. IN NO EVENT SHALL LICENSOR, ITS SUPPLIERS OR
THEIR RELEVANT SUBCONTRACTORS BE LIABLE FOR (A) ANY
INCIDENTAL, SPECIAL, PUNITIVE OR CONSEQUENTIAL
DAMAGES, LOST PROFITS OR LOST OR DAMAGED DATA, OR
ANY INDIRECT DAMAGES, WHETHER ARISING IN CONTRACT,
TORT (INCLUDING NEGLIGENCE AND STRICT LIABILITY) OR
OTHERWISE OR (B) ANY COSTS OR EXPENSES FOR THE
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES IN EACH
CASE, EVEN IF LICENSOR OR ITS SUPPLIERS HAVE BEEN
INFORMED OF THE POSSIBILITY OF SUCH DAMAGES.
3.5 Exclusions. SOME JURISDICTIONS DO NOT PERMIT THE
LIMITATIONS OF LIABILITY AND LIMITED WARRANTIES SET
FORTH UNDER THIS AGREEMENT. IN THE EVENT YOU ARE
LOCATED IN ANY SUCH JURISDICTION, THE FOREGOING
LIMITATIONS SHALL APPLY ONLY TO THE MAXIMUM EXTENT
PERMITTED IN SUCH JURISDICTIONS. IN NO EVENT SHALL
THE FOREGOING EXCLUSIONS AND LIMITATIONS ON
DAMAGES BE DEEMED TO APPLY TO ANY LIABILITY BASED
ON FRAUD, WILLFUL MISCONDUCT, GROSS NEGLIGENCE OR
PERSONAL INJURY OR DEATH.
4.
Confidential Information
4.1 Generally. The Software (and its accompanying Documentation)
constitutes Licensor's and its suppliers' proprietary and confidential
information and contains valuable trade secrets of Licensor and its
suppliers (“Confidential Information”). Customer shall protect the
secrecy of the Confidential Information to the same extent it protects its
other valuable, proprietary and confidential information of a similar
nature but in no event shall Customer use less than reasonable care to
maintain the secrecy of the Confidential Information. Customer shall not
use the Confidential Information except to exercise its rights or perform
its obligations as set forth under this Agreement. Customer shall not
disclose such Confidential Information to any third party other than
subject to non-use and non-disclosure obligations at least as protective of
a party's right in such Confidential Information as those set forth herein.
4.2 Return of Materials. Customer agrees to (i) destroy all Confidential
Information (including deleting any and all copies contained on any of
Customer's Designated Hardware or the Product) within fifteen (15) days
of the date of termination of this Agreement or (ii) if requested by
Licensor, return, any Confidential Information to Licensor within thirty
(30) days of Licensor's written request.
5.
Term and Termination
5.1 Term. Subject to Section 5.2 below, this Agreement will take effect on the
Effective Date and will remain in force until terminated in accordance
with this Agreement.
5.2 Termination Events. This Agreement may be terminated immediately
upon written notice by either party under any of the following
conditions:
(a) If the other party has failed to cure a breach of any material term or
condition under the Agreement within thirty (30) days after receipt of
notice from the other party; or
(b) Either party ceases to carry on business as a going concern, either
party becomes the object of the institution of voluntary or
involuntary proceedings in bankruptcy or liquidation, which
proceeding is not dismissed within ninety (90) days, or a receiver is
appointed with respect to a substantial part of its assets.
5.3 Effect of Termination.
(a) Upon termination of this Agreement, in whole or in part, Customer
shall pay Licensor for all amounts owed up to the effective date of
termination. Termination of this Agreement shall not constitute a
waiver for any amounts due.
(b) The following Sections shall survive the termination of this
Agreement for any reason: Sections 1, 2.2, 2.4, 3, 4, 5.3, and 6.
(c) No later than thirty (30) days after the date of termination of this
Agreement by Licensor, Customer shall upon Licensor's instructions
either return the Software and all copies thereof; all Documentation
relating thereto in its possession that is in tangible form or destroy the
same (including any copies thereof contained on Customer's
Designated Hardware). Customer shall furnish Licensor with a
certificate signed by an executive officer of Customer verifying that
the same has been done.
6.
Miscellaneous
If Customer is a corporation, partnership or similar entity, then the license to
the Software and Documentation that is granted under this Agreement is
expressly conditioned upon and Customer represents and warrants to
Licensor that the person accepting the terms of this Agreement is authorized
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collect information on your use thereof; you hereby authorize Licensor to use
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Hardware Warranty Agreement
PLEASE READ THIS AGREEMENT CAREFULLY BEFORE USING THIS
PRODUCT
BY USING THIS PRODUCT, YOU ACKNOWLEDGE THAT YOU HAVE READ
AND UNDERSTOOD ALL THE TERMS AND CONDITIONS OF THIS
AGREEMENT AND THAT YOU ARE CONSENTING TO BE BOUND BY THIS
AGREEMENT. IF YOU DO NOT AGREE TO ALL OF THE TERMS OF THIS
AGREEMENT, RETURN THE UNUSED PRODUCT TO THE PLACE OF
PURCHASE FOR A FULL REFUND.
LIMITED WARRANTY. Xirrus warrants that for a period of one year from the
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(“Equipment”) will be free of defects in materials and workmanship under
normal use; and (ii) the Equipment substantially conforms to its published
specifications. Except for the foregoing, the Equipment is provided AS IS. This
limited warranty extends only to Customer as the original purchaser. Customer's
exclusive remedy and the entire liability of Xirrus and its suppliers under this
limited warranty will be, at Xirrus' option, repair, replacement, or refund of the
Equipment if reported (or, upon request, returned) to the party supplying the
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error free or that Customer will be able to operate the Equipment without
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This warranty does not apply if the Equipment (a) has been altered, except by
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with instructions supplied by Xirrus, (c) has been subjected to abnormal physical
or electrical stress, misuse, negligence, or accident, or (d) is used in ultrahazardous activities.
DISCLAIMER. EXCEPT AS SPECIFIED IN THIS WARRANTY, ALL EXPRESS OR
IMPLIED
CONDITIONS,
REPRESENTATIONS,
AND
WARRANTIES
INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTY OF
MERCHANTABILITY,
FITNESS
FOR
PARTICULAR
PURPOSE,
NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE,
OR TRADE PRACTICE, ARE HEREBY EXCLUDED TO THE EXTENT
ALLOWED BY APPLICABLE LAW.
IN NO EVENT WILL XIRRUS OR ITS SUPPLIERS BE LIABLE FOR ANY LOST
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CONSEQUENTIAL, INCIDENTAL, OR PUNITIVE DAMAGES HOWEVER
CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY ARISING OUT
OF THE USE OF OR INABILITY TO USE THE EQUIPMENT EVEN IF XIRRUS
OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. In no event shall Xirrus' or its suppliers' liability to Customer,
whether in contract, tort (including negligence), or otherwise, exceed the price
paid by Customer.
The foregoing limitations shall apply even if the above-stated warranty fails of its
essential purpose. SOME STATES DO NOT ALLOW LIMITATION OR
EXCLUSION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL
DAMAGES.
The above warranty DOES NOT apply to any evaluation Equipment made
available for testing or demonstration purposes. All such Equipment is provided
AS IS without any warranty whatsoever.
Customer agrees the Equipment and related documentation shall not be used in
life support systems, human implantation, nuclear facilities or systems or any
other application where failure could lead to a loss of life or catastrophic property
damage, or cause or permit any third party to do any of the foregoing.
All information or feedback provided by Customer to Xirrus with respect to the
Product shall be Xirrus' property and deemed confidential information of Xirrus.
Equipment including technical data, is subject to U.S. export control laws,
including the U.S. Export Administration Act and its associated regulations, and
may be subject to export or import regulations in other countries. Customer
agrees to comply strictly with all such regulations and acknowledges that it has
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This Agreement shall be governed by and construed in accordance with the laws
of the State of California, United States of America, as if performed wholly within
the state and without giving effect to the principles of conflict of law. If any
portion hereof is found to be void or unenforceable, the remaining provisions of
this Warranty shall remain in full force and effect. This Warranty constitutes the
entire agreement between the parties with respect to the use of the Equipment.
Manufacturer is Xirrus, Inc. 370 North Westlake Blvd #200 Westlake Village, CA
91362.
Wi-Fi Array
Table of Contents
All topics listed in this Table of Contents are clickable, which means you can
instantly jump to any selected topic with a click of your mouse button. Items that
do not appear in the TOC list—they are part of the Front Matter, prior to this Table
of Contents—include the following:
Trademarks
Notices
EU Directive 1999/5/EC Compliance Information
Safety Warnings
Translated Safety Warnings
Software Warranty and License Agreement
Hardware Warranty Agreement
List of Figures...................................................................................... xi
Introduction ......................................................................................... 1
The Xirrus Family of Products ............................................................................... 1
Nomenclature .................................................................................................... 3
About this User’s Guide .......................................................................................... 3
Organization ...................................................................................................... 3
Notes and Cautions .......................................................................................... 5
Screen Images .................................................................................................... 5
Your User’s Guide as a PDF Document ........................................................ 5
Hyperlinks ......................................................................................................... 5
Window or Page? .............................................................................................. 5
Why Choose the Xirrus Wi-Fi Array? ................................................................... 6
Wi-Fi Array Product Overview ............................................................................. 7
Enterprise Class Security ................................................................................. 7
Wi-Fi Array Product Family ........................................................................... 8
Deployment Flexibility .................................................................................... 9
Power over Gigabit Ethernet (PoGE) (Optional) ................................ 10
Enterprise Class Management ...................................................................... 11
Table of Contents
Wi-Fi Array
Key Features and Benefits ..................................................................................... 13
High Capacity and High Performance ........................................................ 13
Extended Coverage ......................................................................................... 14
Flexible Coverage Schemes .................................................................... 14
Non-Overlapping Channels .......................................................................... 15
Secure Wireless Access .................................................................................. 15
Applications Enablement .............................................................................. 15
SDMA Optimization ...................................................................................... 15
Fast Roaming ................................................................................................... 15
Easy Deployment ............................................................................................ 15
Product Specifications (XN16 and XN8) ............................................................. 16
Product Specifications (XN4) ............................................................................... 21
Installing the Wi-Fi Array ................................................................. 27
Installation Prerequisites ...................................................................................... 27
Optional Network Components ................................................................... 29
Client Requirements ....................................................................................... 29
Planning Your Installation .................................................................................... 30
General Deployment Considerations .......................................................... 30
Coverage and Capacity Planning ................................................................. 32
Placement .................................................................................................. 32
RF Patterns ................................................................................................ 33
Capacity and Cell Sizes ........................................................................... 34
Fine Tuning Cell Sizes ............................................................................. 35
Roaming Considerations ........................................................................ 36
Allocating Channels ................................................................................ 36
Deployment Examples ............................................................................ 38
Failover Planning ............................................................................................ 40
Port Failover Protection .......................................................................... 40
Switch Failover Protection ..................................................................... 41
Power Planning ............................................................................................... 42
AC Power .................................................................................................. 42
Power over Gigabit Ethernet ................................................................. 42
Security Planning ............................................................................................ 42
Wireless Encryption ................................................................................ 42
Authentication ......................................................................................... 43
Network Management Planning .................................................................. 45
ii
Table of Contents
Wi-Fi Array
WDS Planning ................................................................................................. 46
Deployment Summary ................................................................................... 48
Installation Workflow ........................................................................................... 49
Unpacking the Wi-Fi Array .................................................................................. 50
Installing Your Wi-Fi Array .................................................................................. 52
Choosing a Location ....................................................................................... 52
Wiring Considerations ............................................................................ 53
Mounting the Array on a Ceiling ................................................................. 54
Attaching the T-Bar Clips to the Template .......................................... 55
Secure the T-Bar Clips to the Ceiling Support Grid ........................... 55
Installing the Mounting Plate ................................................................ 57
Connecting the Cables ............................................................................ 58
Attaching the Array to the Mounting Plate (XN16/XN8/XN4) ...... 59
Securing the Array ................................................................................... 60
Dismounting the Array ........................................................................... 61
Mounting the Array on a Wall (XN16/XN8) .............................................. 62
Kit Contents (Wall Mount Assembly - XN16 and XN8) .................... 62
Tools Required ......................................................................................... 62
Mark the Wall Position ........................................................................... 63
Install the SNAPTOGGLE™ Toggle Bolts ........................................... 64
Attach the Mounting Plate to the Wall Mounting Bracket ................ 65
Attach the Wall Mounting Bracket/Plate Assembly to the Wall ..... 65
Mount the Array ...................................................................................... 66
Mounting the Wi-Fi Array on a Wall (XN4) ............................................... 67
Kit Contents (Wall Mount Assembly) .................................................. 67
Tools Required ......................................................................................... 67
Mark the Wall Position ........................................................................... 68
Install the SNAPTOGGLE™ Toggle Bolts ........................................... 68
Attach the Mounting Plate to the Wall Mounting Bracket ................ 70
Attach the Wall Mounting Bracket/Plate Assembly to the Wall ..... 71
Mount the Array ...................................................................................... 72
Removing the Array ................................................................................ 73
Powering Up the Wi-Fi Array .............................................................................. 73
Array LED Operating Sequences ................................................................. 74
LED Boot Sequence ................................................................................. 74
LED Operation when Array is Running .............................................. 75
Establishing Communication with the Array .................................................... 76
Table of Contents
iii
Wi-Fi Array
Using the Serial Port ....................................................................................... 76
Using the Ethernet Ports ................................................................................ 76
Logging In ........................................................................................................ 76
Performing the Express Setup Procedure ........................................................... 77
Procedure for Performing an Express Setup .............................................. 78
The Web Management Interface ................................................... 83
An Overview .......................................................................................................... 84
Structure of the WMI ............................................................................................. 84
User Interface ......................................................................................................... 86
Status Bar .................................................................................................. 87
Logging In ............................................................................................................... 89
Applying Configuration Changes ....................................................................... 89
Character Restrictions .................................................................................... 89
Viewing Status on the Wi-Fi Array.................................................. 91
Array Status Windows .......................................................................................... 91
Array Summary .............................................................................................. 92
Content of the Array Summary Window ............................................ 93
Array Information .......................................................................................... 96
Array Configuration ....................................................................................... 96
Network Status Windows ..................................................................................... 98
Network Map .................................................................................................. 98
Content of the Network Map Window ................................................ 99
Spanning Tree Status .................................................................................... 100
Routing Table ................................................................................................ 101
DHCP Leases ................................................................................................. 102
Connection Tracking/NAT ......................................................................... 102
CDP Neighbors ............................................................................................. 103
RF Monitor Windows .......................................................................................... 104
IAPs ................................................................................................................. 105
Spectrum Analyzer ...................................................................................... 106
Intrusion Detection ...................................................................................... 109
Station Status Windows ...................................................................................... 111
Stations ........................................................................................................... 112
Location Map ................................................................................................. 113
RSSI ................................................................................................................. 118
iv
Table of Contents
Wi-Fi Array
Signal-to-Noise Ratio (SNR) ........................................................................ 120
Noise Floor ..................................................................................................... 122
Statistics Windows ............................................................................................... 124
IAP Statistics Summary ................................................................................ 124
Per-IAP Statistics ........................................................................................... 125
Network Statistics ......................................................................................... 127
VLAN Statistics ............................................................................................. 128
WDS Statistics ................................................................................................ 129
Filter Statistics ............................................................................................... 130
Station Statistics ............................................................................................ 130
Per-Station Statistics ..................................................................................... 131
System Log Window ........................................................................................... 132
Configuring the Wi-Fi Array .......................................................... 133
Express Setup ........................................................................................................ 134
Network ................................................................................................................. 140
Network Interfaces ...................................................................................... 141
Network Interface Ports ........................................................................ 142
DNS Settings .................................................................................................. 148
CDP Settings .................................................................................................. 149
Services .................................................................................................................. 151
Time Settings (NTP) ..................................................................................... 152
System Log ..................................................................................................... 154
SNMP .............................................................................................................. 157
DHCP Server ................................................................................................. 158
VLANs ................................................................................................................... 161
VLAN Management ..................................................................................... 162
Security .................................................................................................................. 164
Understanding Security ........................................................................ 165
Admin Management .................................................................................... 168
Management Control ................................................................................... 169
Access Control List ....................................................................................... 172
Global Settings .............................................................................................. 174
External Radius ............................................................................................. 177
Internal Radius .............................................................................................. 180
Rogue Control List ........................................................................................ 182
SSIDs ...................................................................................................................... 184
Table of Contents
Wi-Fi Array
Understanding SSIDs ............................................................................ 185
Understanding QoS Priority on the Wi-Fi Array .............................. 186
SSID Management ........................................................................................ 189
SSID List (top of page) .......................................................................... 189
SSID Limits ............................................................................................. 192
Web Page Redirect Configuration Settings ........................................ 193
Groups ................................................................................................................... 196
Understanding Groups ......................................................................... 196
Using Groups ......................................................................................... 197
Group Management ..................................................................................... 198
Group Limits .......................................................................................... 200
IAPs ........................................................................................................................ 202
Understanding Fast Roaming .............................................................. 203
IAP Settings ................................................................................................... 204
Global Settings (IAP) ................................................................................... 209
Beacon Configuration ........................................................................... 210
Station Management ............................................................................. 211
Advanced Traffic Optimization .......................................................... 212
Global Settings .11an .................................................................................... 214
Global Settings .11bgn .................................................................................. 217
Advanced RF Settings .................................................................................. 221
About Standby Mode ............................................................................ 221
About Blocking Rogue APs .................................................................. 222
RF Intrusion Detection .......................................................................... 222
RF Resilience .......................................................................................... 223
RF Power & Sensitivity ......................................................................... 224
RF Spectrum Management ................................................................... 225
LED Settings .................................................................................................. 227
WDS ....................................................................................................................... 229
About Configuring WDS Links ........................................................... 229
WDS Client Links .......................................................................................... 231
Filters ..................................................................................................................... 233
Filter Lists ...................................................................................................... 234
Filter Management ....................................................................................... 235
Using Tools on the Wi-Fi Array..................................................... 239
System Tools ......................................................................................................... 240
vi
Table of Contents
Wi-Fi Array
CLI .......................................................................................................................... 246
Logout .................................................................................................................... 248
The Command Line Interface ...................................................... 249
Establishing a Secure Shell (SSH) Connection ................................................. 249
Getting Started with the CLI .............................................................................. 250
Inputting Commands ................................................................................... 250
Getting Help .................................................................................................. 250
Top Level Commands ......................................................................................... 252
Root Command Prompt ............................................................................... 252
configure Commands ................................................................................... 253
show Commands .......................................................................................... 256
statistics Commands ..................................................................................... 259
Configuration Commands .................................................................................. 260
acl .................................................................................................................... 260
admin .............................................................................................................. 261
cdp ................................................................................................................... 262
clear ................................................................................................................. 263
contact-info .................................................................................................... 264
date-time ........................................................................................................ 265
dhcp-server .................................................................................................... 266
dns ................................................................................................................... 267
file .................................................................................................................... 268
filter ................................................................................................................. 269
group .............................................................................................................. 271
hostname ........................................................................................................ 271
https ................................................................................................................ 272
interface .......................................................................................................... 273
load ................................................................................................................. 274
location ........................................................................................................... 274
management .................................................................................................. 275
more ................................................................................................................ 275
no ..................................................................................................................... 276
quit .................................................................................................................. 278
radius-server .................................................................................................. 278
reboot .............................................................................................................. 279
reset ................................................................................................................. 279
Table of Contents
vii
Wi-Fi Array
run-tests .......................................................................................................... 280
security ........................................................................................................... 282
snmp ............................................................................................................... 283
ssh .................................................................................................................... 284
ssid .................................................................................................................. 285
standby ........................................................................................................... 285
syslog .............................................................................................................. 286
telnet ............................................................................................................... 287
uptime ............................................................................................................. 289
vlan .................................................................................................................. 289
Sample Configuration Tasks .............................................................................. 291
Configuring a Simple Open Global SSID .................................................. 292
Configuring a Global SSID using WPA-PEAP ......................................... 293
Configuring an SSID-Specific SSID using WPA-PEAP ........................... 294
Enabling Global IAPs ................................................................................... 295
Disabling Global IAPs .................................................................................. 296
Enabling a Specific IAP ................................................................................ 297
Disabling a Specific IAP ............................................................................... 298
Setting Cell Size Auto-Configuration for All IAPs .................................. 299
Setting the Cell Size for All IAPs ................................................................ 300
Setting the Cell Size for a Specific IAP ....................................................... 301
Configuring VLANs on an Open SSID ...................................................... 302
Configuring Self-Monitoring Mode (Loopback Tests) ............................ 303
Appendices..................................................................................... 305
Appendix A: Servicing the Wi-Fi Array .............................................................307
Removing the Access Panel ................................................................................ 309
Reinstalling the Access Panel ............................................................................. 312
Replacing the FLASH Memory Module ........................................................... 314
Replacing the Main System Memory ................................................................ 316
Replacing the Integrated Access Point Radio Module ................................... 318
Replacing the Power Supply Module ............................................................... 321
Appendix B: Quick Reference Guide ................................................................323
Factory Default Settings ...................................................................................... 323
Host Name ..................................................................................................... 323
Network Interfaces ....................................................................................... 323
viii
Table of Contents
Wi-Fi Array
Serial ........................................................................................................ 323
Gigabit 1 and Gigabit 2 ......................................................................... 323
Fast Ethernet ........................................................................................... 324
Integrated Access Points (IAPs) .................................................................. 325
Server Settings ............................................................................................... 325
NTP .......................................................................................................... 325
Syslog ...................................................................................................... 326
SNMP ...................................................................................................... 326
DHCP .............................................................................................................. 326
Default SSID .................................................................................................. 327
Security .......................................................................................................... 327
Global Settings - Encryption ............................................................... 327
External RADIUS (Global) .................................................................. 328
Internal RADIUS .................................................................................... 329
Administrator Account and Password ...................................................... 329
Management .................................................................................................. 329
Keyboard Shortcuts ............................................................................................. 330
Appendix C: Technical Support .........................................................................333
General Hints and Tips ....................................................................................... 333
Frequently Asked Questions .............................................................................. 334
Multiple SSIDs ............................................................................................... 334
Security ........................................................................................................... 336
VLAN Support .............................................................................................. 339
Array Monitor and Loopback Testing Capabilities ........................................ 341
Enabling Monitoring on the Array ..................................................... 341
How Monitoring Works ............................................................................... 341
Loopback Testing .......................................................................................... 342
Loopback Mode Options ...................................................................... 343
Upgrading the Array via CLI ............................................................................. 344
Sample Output for the Upgrade Procedure: ............................................. 345
Contact Information ............................................................................................ 349
Glossary of Terms.......................................................................... 351
Index................................................................................................ 363
Table of Contents
ix
Wi-Fi Array
Table of Contents
Wi-Fi Array
List of Figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
The Xirrus Management System .............................................................. 2
Wi-Fi Array (XN16) .................................................................................... 7
Wireless Coverage Patterns ...................................................................... 9
XP1 - Power over Ethernet Usage .......................................................... 10
WMI: Array Status.................................................................................... 11
Layout of IAPs (XN16)............................................................................. 13
Coverage Schemes.................................................................................... 14
Wall Thickness Considerations .............................................................. 30
Unit Placement.......................................................................................... 32
Full (Normal) Coverage........................................................................... 33
Adjusting RF Patterns .............................................................................. 33
Custom Coverage ..................................................................................... 34
Connection Rate vs. Distance (relatively unobstructed area) ............ 34
Transmit Power......................................................................................... 35
Overlapping Cells..................................................................................... 36
Allocating Channels Manually ............................................................... 37
Deployment Scenario (54 Mbps)—Per Sector ...................................... 38
Deployment Scenario (36 Mbps)—Per Sector ...................................... 38
Deployment Scenario (18 Mbps)—Per Sector ...................................... 39
Port Failover Protection ........................................................................... 40
Switch Failover Protection ...................................................................... 41
WDS Link................................................................................................... 46
A Multiple Hop WDS Connection ......................................................... 46
WDS Failover Protection ......................................................................... 47
Installation Workflow .............................................................................. 49
Array Placement ....................................................................................... 52
Attaching the T-Bar Clips to the Template ........................................... 55
Attaching the T-Bar Clips to the Ceiling Grid...................................... 56
Installing the Mounting Plate ................................................................. 57
Connecting the Cables ............................................................................. 58
Attaching the Unit (XN4) ........................................................................ 59
Securing the Array.................................................................................... 60
IAP Positions (XN16) ............................................................................... 61
Wall Mount—Marking the Holes........................................................... 63
List of Figures
xi
Wi-Fi Array
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
Figure 42.
Figure 43.
Figure 44.
Figure 45.
Figure 46.
Figure 47.
Figure 48.
Figure 49.
Figure 50.
Figure 51.
Figure 52.
Figure 53.
Figure 54.
Figure 55.
Figure 56.
Figure 57.
Figure 58.
Figure 59.
Figure 60.
Figure 61.
Figure 62.
Figure 63.
Figure 64.
Figure 65.
Figure 66.
Figure 67.
Figure 68.
Figure 69.
Figure 70.
Figure 71.
xii
Installing the Toggle Bolts....................................................................... 64
Attaching the Wall Mounting Plate ....................................................... 65
Mounting the Array on a Wall ............................................................... 66
Wall Mount—Marking the Holes........................................................... 68
Installing the Toggle Bolts....................................................................... 69
Attaching the Array Mounting Plate ..................................................... 70
Attaching the Wall Mounting Bracket to the Wall .............................. 71
Mounting the Array on a Wall ............................................................... 72
LED Locations (XN16) ............................................................................. 73
Network Interface Ports........................................................................... 76
Express Setup ............................................................................................ 77
LEDs are Switched On ............................................................................. 82
Web Management Interface .................................................................... 84
WMI: Frames ............................................................................................. 86
WMI: Status Bar ........................................................................................ 87
Feedback Form.......................................................................................... 88
Logging In to the Wi-Fi Array ................................................................ 89
Array Summary ........................................................................................ 92
Disabled IAP (Partial View) .................................................................... 94
IAP Cells .................................................................................................... 95
Array Information .................................................................................... 96
Show Configuration ................................................................................. 97
Network Map ............................................................................................ 98
Spanning Tree Status.............................................................................. 100
Routing Table .......................................................................................... 101
DHCP Leases........................................................................................... 102
Connection Tracking .............................................................................. 102
CDP Neighbors ....................................................................................... 103
RF Monitor—IAPs .................................................................................. 105
RF Spectrum Analyzer........................................................................... 107
Intrusion Detection/Rogue AP List..................................................... 109
Categorizing APs .................................................................................... 110
Stations ..................................................................................................... 112
Location Map........................................................................................... 113
Controls for Location Map .................................................................... 114
Minimizing stations................................................................................ 115
Setting Array location on a Custom Image......................................... 117
List of Figures
Wi-Fi Array
Figure 72.
Figure 73.
Figure 74.
Figure 75.
Figure 76.
Figure 77.
Figure 78.
Figure 79.
Figure 80.
Figure 81.
Figure 82.
Figure 83.
Figure 84.
Figure 85.
Figure 86.
Figure 87.
Figure 88.
Figure 89.
Figure 90.
Figure 91.
Figure 92.
Figure 93.
Figure 94.
Figure 95.
Figure 96.
Figure 97.
Figure 98.
Figure 99.
Figure 100.
Figure 101.
Figure 102.
Figure 103.
Figure 104.
Figure 105.
Figure 106.
Figure 107.
Figure 108.
Station RSSI Values ................................................................................ 118
Station RSSI Values—Colorized Graphical View .............................. 119
Station Signal-to-Noise Ratio Values................................................... 120
Station SNR Values—Colorized Graphical View .............................. 121
Station Noise Floor Values .................................................................... 122
Station Noise Floor Values—Colorized Graphical View.................. 123
IAP Statistics Summary Page................................................................ 125
Individual IAP Statistics Page (for IAP abg1) .................................... 126
Network Statistics................................................................................... 127
VLAN Statistics....................................................................................... 128
WDS Statistics ......................................................................................... 129
Filter Statistics ......................................................................................... 130
Station Statistics ...................................................................................... 130
Individual Station Statistics Page......................................................... 131
System Log (modified for clarity) ....................................................... 132
WMI: Express Setup ............................................................................... 134
LEDs are Switched On ........................................................................... 139
Network Interfaces ................................................................................. 140
Network Settings .................................................................................... 141
Network Interface Ports......................................................................... 142
Port Modes (a-b) ..................................................................................... 144
Port Modes (c-d) ..................................................................................... 145
Port Modes (e-f) ...................................................................................... 146
DNS Settings............................................................................................ 148
CDP Settings............................................................................................ 149
Services..................................................................................................... 151
Time Settings (Manual Time)................................................................ 152
Time Settings (NTP Time Enabled)...................................................... 153
System Log .............................................................................................. 154
SNMP ....................................................................................................... 157
DHCP Management ............................................................................... 158
VLANs...................................................................................................... 161
VLAN Management ............................................................................... 162
Security..................................................................................................... 164
Admin Management .............................................................................. 168
Management Control ............................................................................. 169
Access Control List ................................................................................. 172
List of Figures
xiii
Wi-Fi Array
Figure 109.
Figure 110.
Figure 111.
Figure 112.
Figure 113.
Figure 114.
Figure 115.
Figure 116.
Figure 117.
Figure 118.
Figure 119.
Figure 120.
Figure 121.
Figure 122.
Figure 123.
Figure 124.
Figure 125.
Figure 126.
Figure 127.
Figure 128.
Figure 129.
Figure 130.
Figure 131.
Figure 132.
Figure 133.
Figure 134.
Figure 135.
Figure 136.
Figure 137.
Figure 138.
Figure 139.
Figure 140.
Figure 141.
Figure 142.
Figure 143.
Figure 144.
Figure 145.
xiv
Global Settings (Security) ...................................................................... 174
External RADIUS Server ....................................................................... 177
Internal RADIUS Server ........................................................................ 180
Rogue Control List ................................................................................. 182
SSIDs......................................................................................................... 184
Four Traffic Classes ................................................................................ 186
SSID Management .................................................................................. 189
WPR Internal Splash Page Fields (SSID Management)..................... 194
Groups...................................................................................................... 196
Group Management ............................................................................... 198
IAPs........................................................................................................... 202
IAP Settings ............................................................................................. 204
Global Settings (IAPs) ............................................................................ 209
Global Settings .11an .............................................................................. 214
Global Settings .11bgn ........................................................................... 217
Advanced RF Settings............................................................................ 221
LED Settings ............................................................................................ 227
WDS .......................................................................................................... 229
.Configuring a WDS Link ...................................................................... 230
WDS Client Links ................................................................................... 231
Filters ........................................................................................................ 233
Filter Lists ................................................................................................ 234
Filter Management ................................................................................. 235
System Tools............................................................................................ 240
Saving the Diagnostic Log..................................................................... 243
Managing WPR Splash/Login page files............................................ 244
System Command (Ping)....................................................................... 245
CLI Window ............................................................................................ 246
Login Window ........................................................................................ 248
Logging In................................................................................................ 249
Help Window.......................................................................................... 250
Full Help .................................................................................................. 251
Partial Help.............................................................................................. 251
Configuring a Simple Open Global SSID............................................ 292
Configuring a Global SSID using WPA-PEAP................................... 293
Configuring an SSID-Specific SSID using WPA-PEAP..................... 294
Enabling Global IAPs............................................................................. 295
List of Figures
Wi-Fi Array
Figure 146.
Figure 147.
Figure 148.
Figure 149.
Figure 150.
Figure 151.
Figure 152.
Figure 153.
Figure 154.
Figure 155.
Figure 156.
Figure 157.
Figure 158.
Figure 159.
Figure 160.
Figure 161.
Figure 162.
Figure 163.
Figure 164.
Figure 165.
Figure 166.
Disabling Global IAPs............................................................................ 296
Enabling a Specific IAP.......................................................................... 297
Disabling a Specific IAP......................................................................... 298
Setting the Cell Size for All IAPs.......................................................... 299
Setting the Cell Size for All IAPs.......................................................... 300
Setting the Cell Size for a Specific IAP ................................................ 301
Configuring VLANs on an Open SSID................................................ 302
Configuring a Loopback Test ............................................................... 304
Disconnecting Power from the Array.................................................. 307
Removing the Access Panel Screws ..................................................... 309
Removing the Access Panel .................................................................. 310
Disconnecting the Power Supply and Fan.......................................... 310
Reconnecting the Fan and Power Supply ........................................... 312
Reinstalling the Access Panel................................................................ 312
Removing the FLASH Memory Module ............................................. 314
Removing the DIMM Memory Module .............................................. 316
Removing the Chassis Cover Screws................................................... 318
Removing the Chassis Cover ................................................................ 318
Lifting the Integrated Access Point Module ....................................... 319
Disconnect the Integrated Access Point Module ............................... 319
Installing a New Access Panel (with Power Supply) ........................ 321
List of Figures
xv
Wi-Fi Array
xvi
List of Figures
Wi-Fi Array
Introduction
These topics introduce the Xirrus Wi-Fi Array, including an overview of its key
features and benefits, and a detailed listing of the product’s physical,
environmental, technology and regulatory specifications.
“The Xirrus Family of Products” on page 1.
“About this User’s Guide” on page 3.
“Why Choose the Xirrus Wi-Fi Array?” on page 6.
“Wi-Fi Array Product Overview” on page 7.
“Key Features and Benefits” on page 13.
“Product Specifications (XN16 and XN8)” on page 16.
“Product Specifications (XN4)” on page 21.
The Xirrus Family of Products
The Xirrus family of products includes the following items:
Xirrus Wi-Fi Array (XN16 / XN8 / XN4)
The newest Xirrus Wi-Fi Arrays feature additional capabilities to support
the Enterprise market. The XN16 has 16 IAPs (Integrated Access Points—
radios), the XN8 has 8 IAPs, and the XN4 has 4 IAPs.
Xirrus Management System (XMS)
XMS is used for managing large Wi-Fi Array deployments from a
centralized Web-based interface. The XMS server is available preinstalled on the Xirrus XM-3300-CC Management Platform, or as a
software package (XA-3300-CC) to be installed on your own server
hardware.
Figure 1 illustrates the elements of the Xirrus Management System. Users
start the XMS client simply by entering the URL of the XMS server on a
web browser. The XMS server manages a number of Wi-Fi Arrays via
SNMP.
Introduction
Wi-Fi Array
Figure 1. The Xirrus Management System
If you need detailed information about this product, refer to the XMS
User’s Guide, part number 800-0007-001.
Xirrus Power over Gigabit Ethernet (PoGE)
The PoGE modules eliminate the need for running separate power
cabling. Additionally, an eight port module provides distributed power
to multiple Arrays, facilitating backup power when connected via a UPS.
Introduction
Wi-Fi Array
Nomenclature
Throughout this User’s Guide, the Xirrus Wi-Fi Array is also referred to as simply
the Array. In some instances, the terms product and unit are also used. When
discussing specific products from the Xirrus family, the product name is used (for
example, XN16, XN8, XN4). The Wi-Fi Array’s operating system is referred to as
the ArrayOS. The Web Management Interface for browser-based management of
the Array is referred to as WMI.
The Xirrus Management System is referred to as XMS. The Power over Gigabit
Ethernet system may be referred to as PoGE.
About this User’s Guide
This User’s Guide provides detailed information and procedures that will enable
wireless network administrators to install, configure and manage the Wi-Fi Array
so that end users can take full advantage of the product’s features and
functionality without technical assistance.
Organization
Topics and procedures are organized by function under the following chapter
headings:
Introduction
Provides a brief introduction to wireless technology, an overview of the
product, including its key features and benefits, and presents the product
specifications.
Installing the Wi-Fi Array
Defines the prerequisites for deploying and installing the Array and
provides instructions to help you plan and complete a successful
installation.
The Web Management Interface
Offers an overview of the product’s embedded Web Management
Interface, including its content and structure. It emphasizes what you
need to do to ensure that any configuration changes you make are
Introduction
Wi-Fi Array
applied, and provides a list of restricted characters. It also includes
instructions for logging in to the Array with your Web browser.
Viewing Status on the Wi-Fi Array
Describes the status and statistics displays available on the Array using
its embedded Web Management Interface.
Configuring the Wi-Fi Array
Contains procedures for configuring the Array using its embedded Web
Management Interface.
Using Tools on the Wi-Fi Array
Contains procedures for using utility tools provided in the Web
Management Interface. It includes procedures for upgrading the system
firmware, uploading and downloading configurations and other files,
using diagnostic tools, and resetting the Array to its factory defaults.
The Command Line Interface
Includes the commands and the command structure used by the Wi-Fi
Array’s Command Line Interface (CLI), and provides a procedure for
establishing a Telnet connection to the Array. This chapter also includes
some sample key configuration tasks using the CLI.
Appendix A: Servicing the Wi-Fi Array
Contains procedures for servicing the Array, including the removal and
reinstallation of major hardware components.
Appendix B: Quick Reference Guide
Contains the product’s factory default settings.
Appendix C: Technical Support
Offers guidance to resolve technical issues, including general hints and
tips to enhance your product experience, and a procedure for isolating
problems within an Array-enabled wireless network. Also includes
Frequently Asked Questions (FAQs) and Xirrus contact information.
Glossary of Terms
Provides an explanation of terms directly related to Xirrus product
technology, organized alphabetically.
Introduction
Wi-Fi Array
Index
The index is a valuable information search tool. Use the index to locate
specific topics discussed in this User’s Guide. Simply click on any page
number in the index to jump to the referenced topic.
Notes and Cautions
The following symbols are used throughout this User’s Guide:
This symbol is used for general notes that provide useful supplemental
information.
This symbol is used for cautions. Cautions provide critical information that
may adversely affect the performance of the product.
Screen Images
Some screen images of the Web Management Interface have been modified for
clarity. For example, an image may have been cropped to highlight a specific area
of the screen, and/or sample data may be included in some fields.
Your User’s Guide as a PDF Document
This User’s Guide is also made available as a secure PDF (Portable Document
Format) file and can be viewed using the Adobe® Acrobat Reader® product. It
cannot be edited or modified. If you don’t have Acrobat Reader, you can
downloaded it free-of-charge from: http://www.adobe.com.
Hyperlinks
If you click on body text that appears in the color TEAL (with the exception of
headings or notes) the embedded hyperlink within the text will immediately take
you to the referenced destination. All internal and external cross-references,
including page numbers within the List of Figures and the Index, have associated
hyperlinks. After “jumping” to a referenced topic, if you want to return to the
previous page (reference source), simply click on Acrobat’s previous page button.
Window or Page?
Is a window a page, or is a page a window? There seems to be some dispute as to
what the correct term should be. For the sake of consistency, this document uses
Introduction
Wi-Fi Array
the term Window when referring to how the Wi-Fi Array’s Web Management
Interface is displayed on your monitor.
Why Choose the Xirrus Wi-Fi Array?
The deployment of wireless LANs is becoming increasingly common as
businesses strive for greater flexibility in the workplace and the need for
employee mobility rises. The only requirements for an effective wireless
deployment are a power source, a couple of screws, and a little imagination.
Wireless LAN is also fully compatible with standard Ethernet protocols, so
connectivity with existing wired infrastructures is transparent to users—they can
still access and use the same applications and network services that they use
when plugged into the company’s wired LAN infrastructure (it’s only the plug
that no longer exists).
Wireless LAN has come a long way in the past few years and now offers the
performance, reliability and security that Enterprise customers have come to
expect from their networks. The technology is being driven by three major IEEE
standards:
802.11a
Operates in the 5 GHz range with a maximum speed of 54 Mbps.
802.11b
Operates in the 2.4 GHz range with a maximum speed of 11 Mbps.
802.11g
Supports a transmission speed of 54 Mbps in the 2.4 GHz range and is
backwards compatible with 802.11b.
802.11n
Supports a higher transmission speed of up to 300 Mbps in the 5 GHz
range and is backwards compatible with 802.11a/b/g.
Whether you’re a small company with just a handful of employees, or a large
corporation with thousands, wireless has the scalability and flexibility to serve
your needs.
Introduction
Wi-Fi Array
See Also
Key Features and Benefits
Wi-Fi Array Product Overview
Product Specifications (XN4)
Product Specifications (XN16 and XN8)
The Xirrus Family of Products
Wi-Fi Array Product Overview
Part of the family of Xirrus products, the Wi-Fi Array is a high capacity, multimode device designed for the Enterprise market, with twice the range and up to
sixteen times the capacity of competitive wireless products.
Figure 2. Wi-Fi Array (XN16)
The Wi-Fi Array (regardless of the product model) is Wi-Fi® compliant and
simultaneously supports 802.11a, 802.11b, 802.11g, and 802.11n clients. Enterprise
class features such as VLAN support and multiple SSID capability enable robust
network compatibility and a high level of scalability and system control.
The optional Xirrus Management System (XMS) allows global management of
hundreds of Arrays from a central location.
Multiple versions of the Array with different numbers of Integrated Access Points
(IAPs) support a variety of deployment applications: 16 IAPs (XN16), 8 IAPs
(XN8), and 4 IAPs (XN4).
Enterprise Class Security
Introduction
Wi-Fi Array
The latest and most effective wireless encryption security standards, including
WPA (Wi-Fi Protected Access) and WPA2 with 802.11i AES (Advanced
Encryption Standard) are provided with the Wi-Fi Array. In addition, the use of
an embedded RADIUS server (or 802.1x with an external RADIUS server) ensures
user authentication—multiple Arrays can authenticate to the optional XMS,
ensuring only authorized Arrays become part of the wireless network. Rogue AP
detection, site monitoring, and RF spectrum analysis are performed in the
background by the Array automatically.
Wi-Fi Array Product Family
The following table provides an overview of the main features supported by the
Wi-Fi Array product family.
Feature
XN16
XN8,
XN4
Number of 802.11
a/b/g/n radios
Number of
802.11a/n radios
12
16
Integrated Wi-Fi
switch ports
16
Integrated RF
spectrum analyzer
and threat sensors
Yes
Yes
Yes
Wi-Fi bandwidth
864
432
216
Users supported
1,024
512
256
Total radios
Uplink Ports
1 bgn using internal antennas, abg for 3 radios using external antennas
See Also
Key Features and Benefits
Wi-Fi Array Product Overview
Introduction
Wi-Fi Array
Product Specifications (XN4)
Product Specifications (XN16 and XN8)
Power over Gigabit Ethernet (PoGE) (Optional)
Why Choose the Xirrus Wi-Fi Array?
Deployment Flexibility
Xirrus’ unique multi-radio architecture generates 360 degrees of sectored highgain 802.11a/b/g/n coverage that provides extended range and the highest
possible data rates for a large volume of clients. Each sector can be controlled
automatically or manually, creating a pattern of wireless coverage perfectly
tailored to individual customer needs. For example:
outside wall
Figure 3. Wireless Coverage Patterns
Figure 3 depicts the following two scenarios:
Full pattern coverage
All radios are activated with coverage spanning 360 degrees. If within
range, clients will always receive coverage regardless of their geographic
position relative to the Array.
Partial pattern coverage
If desired, the Wi-Fi Array can be deployed close to an exterior wall. In
this case, half of all available radios have been deactivated to prevent
redundant signals from “bleeding” beyond the site’s perimeter wall. This
Introduction
Wi-Fi Array
configuration may also be used in those cases where you want to restrict
wireless coverage to selected areas of the building’s interior.
See also, “Flexible Coverage Schemes” on page 14.
Power over Gigabit Ethernet (PoGE) (Optional)
The Xirrus XP1 and XP8 Power over Gigabit Ethernet modules provide power to
your Arrays over the same Cat 5e or Cat 6 cable used for data, eliminating the
need to run power cables and provide an AC power outlet in close proximity to
each unit.
Figure 4. XP1 - Power over Ethernet Usage
Specific models of the Array are compatible with specific PoGE modules. For
details, please see “Contact Information” on page 349.
See Also
Key Features and Benefits
Wi-Fi Array Product Overview
Product Specifications (XN4)
10
Introduction
Wi-Fi Array
Product Specifications (XN16 and XN8)
The Xirrus Family of Products
Why Choose the Xirrus Wi-Fi Array?
Enterprise Class Management
The Wi-Fi Array can be configured with its default RF settings, or the RF settings
can be customized using the Array’s embedded Web Management Interface
(WMI). The WMI enables easy configuration and control from a graphical
console, along with a full compliment of troubleshooting tools and statistics.
Figure 5. WMI: Array Status
Introduction
11
Wi-Fi Array
In addition, a fully featured Command Line Interface (CLI) offers IT professionals
a familiar management and control environment. SNMP (Simple Network
Management Protocol) is also supported to allow management from an SNMP
compliant management tool, such as the optional Xirrus Management System.
For deployments of more than five Arrays, we recommend that you use the
Xirrus Management System (XMS). The XMS offers a rich set of features
for fine control over large deployments.
See Also
Key Features and Benefits
Product Specifications (XN4)
Product Specifications (XN16 and XN8)
Power over Gigabit Ethernet (PoGE) (Optional)
The Xirrus Family of Products
Why Choose the Xirrus Wi-Fi Array?
12
Introduction
Wi-Fi Array
Key Features and Benefits
This section describes some of the key product features and the benefits you can
expect when deploying the Wi-Fi Array (the XN16 product is highlighted in this
section).
High Capacity and High Performance
The XN16 version of the Wi-Fi Array easily handles time-sensitive traffic, such as
voice, and can enable wireless connectivity for 1,024 users. The unit includes two
Gigabit uplink ports for connection to the wired network. A total of sixteen IAPs
provides a maximum wireless capacity of 864 Mbps, which offers ample reserves
for the high demands of current and future applications. Of the sixteen IAPs,
twelve operate in the 802.11a/n mode and four provide backwards compatibility
with 802.11b and 802.11g.
If desired, IAP (radio) abg2 can also be configured in RF monitoring and rogue
AP detection mode.
a12
a11
a1
abg4
abg1
a10
a2
a3
a9
a8
a4
abg3
abg2
a7
a5
a6
Mode(s)
abg2 (RF monitoring)
IAP number
Figure 6. Layout of IAPs (XN16)
Introduction
13
Wi-Fi Array
Extended Coverage
One XN16 solution enables you to replace up to sixteen access points (includes
one omnidirectional IAP for monitoring the network). Fifteen IAP radios with
integrated directional antennas provide increased wireless range and enhanced
data rates in all directions. With a Wi-Fi Array deployed, far fewer access points
are needed and wired-like resiliency is delivered throughout your wireless
network. Your Wi-Fi Array deployment ensures:
Continuous connectivity if an IAP (radio) fails.
Continuous connectivity if an Array fails.
Continuous connectivity if a WDS link or switch fails.
Continuous connectivity if a Gigabit uplink or switch fails.
Flexible Coverage Schemes
Your Wi-Fi Array offers flexible coverage schemes for each wireless technology.
802.11a/n
802.11a/b/g/n
Monitor only
Figure 7. Coverage Schemes
14
802.11a/n
Delivers 60° wireless coverage per IAP, with 6 dBi of gain.
802.11a/b/g/n
Delivers 180° wireless coverage, with 4 dBi of gain.
802.11a/b/g/n (monitor only)
Delivers 360° wireless coverage, with 2 dBi of gain.
Introduction
Wi-Fi Array
Non-Overlapping Channels
Complete use of non-overlapping channels limits interference and delivers
maximum capacity. On the XN16, up to 16 non-overlapping channels are fully
utilized across the 5GHz and 2.4GHz spectrums (up to 12 across the 5GHz
spectrum plus up to 3 across the 2.4 GHz spectrum—typically, one additional
radio is used as a dedicated RF monitor).
Secure Wireless Access
Multiple layers of authentication and encryption ensure secure data
transmissions. The Wi-Fi Array is 802.11i compliant with encryption support for
40 bit and 128 bit WEP, WPA and WPA2 with TKIP and AES encryption.
Authentication support is provided via 802.1x, including PEAP, EAP-TLS, EAPTTLS, and LEAP (Lightweight Extensible Authentication Protocol) passthrough.
Applications Enablement
QoS (Quality of Service) functionality combined with true switch capabilities
enable high density video and Voice over Wireless LAN deployments. Compliant
with 802.1p and 802.1Q standards.
SDMA Optimization
SDMA (Spatial Division Multiple Access) technology provides full 360° coverage
while allowing independent channel and power output customization. Also
supports fast inter-zone handoffs for time-sensitive applications and roaming
support.
Fast Roaming
Utilizes the Xirrus Roaming Protocol (XRP) ensuring fast and seamless roaming
capabilities between IAPs or Arrays at both Layer 2 and Layer 3.
Easy Deployment
The Xirrus Management System (XMS) offers real time monitoring and
management capabilities of the wireless network—ideal for the Enterprise
market. It also allows you to import floor plans to help you plan your
deployment. The Xirrus Wi-Fi Array chassis has a plenum rated, lockable and
tamper resistant case.
Introduction
15
Wi-Fi Array
See Also
Wi-Fi Array Product Overview
Product Specifications (XN4))
Product Specifications (XN16 and XN8)
Power over Gigabit Ethernet (PoGE) (Optional)
The Xirrus Family of Products
Why Choose the Xirrus Wi-Fi Array?
Product Specifications (XN16 and XN8)
Element
Specifications
Number of Users
Maximum of 64 associated users per radio
1024 users per Array (XN16)
512 users per Array (XN8)
Physical
Diameter: 18.65 inches (47.37 cm)
Height: 3.87 inches (9.83 cm)
Weight: 8lbs (3.63 kg)
Environmental
Operating Temperature:
-10°C to 50°C
0% to 90% relative humidity (non-condensing)
Storage Temperature:
-20°C to 60°C
5% to 95% relative humidity (non-condensing)
System
16
1 GHz CPU (XN16/XN8)
1 GB RAM (XN16/XN8)
512 MB system flash
Expansion slot for future options
Introduction
Wi-Fi Array
Element
Specifications
Electrical
XN16/XN8:
Each Array supports both AC and PoGE
AC Input Power: 90-265VAC at 47-63Hz
PoGE Input Power: Power over Gigabit
Ethernet—no splitter required, 48VDC
Interfaces
Serial:
1 x RS232 – RJ45 connector
Ethernet Interfaces:
2 x Gigabit 100/1000 Mbps w/failover
1 x Fast Ethernet 10/100 Mbps
Status LEDs:
System status, Ethernet, Radio
Management
Web-based HTTPS
SNMP v2
CLI via SSHv2 or Telnet
FTP
TFTP
Serial
Xirrus Management System (XMS)
Syslog reporting for alerts/alarms
Networking
DHCP client, DHCP server, NTP client, NAT
VLAN Support
802.1Q, 802.1p VLAN
Supports up to 16 VLANs
Multiple SSID
Support
Allows up to 16 separate SSIDs to be defined
with map security, VLAN and QoS settings for
each SSID
Introduction
17
Wi-Fi Array
Element
Performance
Specifications
Client Load Balancing
Automatic load balancing between system
radios
Quality of Service:
802.1p wired traffic prioritization
Wireless packet prioritization
MAP CoS to TCID
Fair queuing of downstream traffic
Security
Wireless Security:
WEP 40bit/128bit encryption
WPA and WPA2 with TKIP and AES encryption
Rogue AP detection, with alerts and
classification
User and System Authentication:
WPA and WPA2 Pre-Shared Key authentication
Internal RADIUS Server, supports EAP-PEAP
only
802.1x EAP-TLS
802.1x EAP-TTLS/MSCHAPv2
802.1x PEAPv0/EAP-MSCHAPv2
802.1x PEAPv1/EAP-GTC
802.1x EAP-SIM
802.1x EAP-LEAP Passthrough
External RADIUS servers
Authentication of Wi-Fi Arrays to the Xirrus
Management System (XMS)
18
Introduction
Wi-Fi Array
Element
Wireless
Specifications
Number of Radios:
XN16:
12 x 802.11a/n radios
4 x 802.11a/b/g/n radios
Only 12 radios should be used as 802.11a/n
radios concurrently.
XN8:
4 x 802.11a/n radios
4 x 802.11a/b/g/n radios
Wireless Standards:
802.11a/b/g /n and g-only mode
802.11e, 802.11i
Channel Selection:
Manual and Automatic
Frequency Bands:
11a: 4.945 – 4.985 (restricted Public Safety band)
11a: 5.15-5.25 GHz (UNII 1)
11a: 5.725-5825 GHz (UNII 3)
11b/g: 2.412-2.462 GHz (FCC)
Antennas (XN16):
36 x internal 6 dBi 60° 802.11a/n sectorized
12 x internal 3 dBi 180° 802.11b/g/n sectorized
1 x internal 2 dBi 360° omni-directional (for RF
monitoring)
3 x external RP-TNC connectors for three
802.11a/b/g/n radios
Introduction
19
Wi-Fi Array
Element
Specifications
Antennas (XN8):
24 x internal 6 dBi 60° 802.11a sectorized
12 x internal 3 dBi 180° 802.11b/g sectorized
1 x internal 2 dBi 360° omni-directional (for RF
monitoring)
3 x external RP-TNC connectors for three
802.11a/b/g/n radios
Radio Approvals:
FCC (United States)
Compliance
FCC Part 15.107 and 15109, Class B
Warranty
One year (hardware and software)
See Also
Key Features and Benefits
Wi-Fi Array Product Overview
Product Specifications (XN4)
Power over Gigabit Ethernet (PoGE) (Optional)
The Xirrus Family of Products
Why Choose the Xirrus Wi-Fi Array?
20
Introduction
Wi-Fi Array
Product Specifications (XN4)
Element
Specifications
Number of Users
Maximum of 64 associated users per radio (256
users per Array)
Physical
Diameter: 12.58 inches (31.95 cm)
Height: 2.58 inches (6.55 cm)
Weight: 4lbs (1.81 kg)
Environmental
Operating Temperature:
-10°C to 50°C
0% to 90% relative humidity (non-condensing)
Storage Temperature:
-20°C to 60°C
5% to 95% relative humidity (non-condensing)
System
825 MHz CPU (XN4)
512 MB RAM, expandable (XN4)
512 MB system flash, expandable
Expansion slot for future options
Electrical
XN4:
Each Array supports both AC and PoGE
AC Input Power: 90-265VAC at 47-63Hz
Power over Gigabit Ethernet (PoGE): all 4-port
models work with all Xirrus PoGE modules,
splitter required, 48VDC
Interfaces
Serial:
1 x RS232 – RJ45 connector
Ethernet Interfaces:
1 x Gigabit 100/1000 Mbps
Status LEDs:
System status, Ethernet, Radio
Introduction
21
Wi-Fi Array
Element
Specifications
Management
Web-based HTTPS
SNMP v2
CLI via SSHv2 or Telnet
FTP
TFTP
Serial
Xirrus Management System (XMS)
Syslog reporting for alerts/alarms
Networking
DHCP client, DHCP server, NTP client, NAT
VLAN Support
802.1Q, 802.1p VLAN
Supports up to 16 VLANs
Multiple SSID
Support
Allows up to 16 separate SSIDs to be defined
with map security, VLAN and QoS settings for
each SSID
Performance
Client Load Balancing
Automatic load balancing between system
radios
Quality of Service:
802.1p wired traffic prioritization
Wireless packet prioritization
MAP CoS to TCID
Fair queuing of downstream traffic
22
Introduction
Wi-Fi Array
Element
Security
Specifications
Wireless Security:
WEP 40bit/128bit encryption
WPA and WPA2 with TKIP and AES encryption
Rogue AP detection, with alerts and
classification
User and System Authentication:
WPA Pre-Shared Key authentication
Internal RADIUS Server, supports EAP-PEAP
only
802.1x EAP-TLS
802.1x EAP-TTLS/MSCHAPv2
802.1x PEAPv0/EAP-MSCHAPv2
802.1x PEAPv1/EAP-GTC
802.1x EAP-SIM
802.1x EAP-LEAP Passthrough
External RADIUS servers
Authentication of Wi-Fi Arrays to the Xirrus
Management System (XMS)
Introduction
23
Wi-Fi Array
Element
Wireless
Specifications
Number of Radios:
4 x 802.11a/b/g/n radios
Wireless Standards:
802.11a/b/g/n and g-only mode
802.11e, 802.11i
Channel Selection:
Manual and Automatic
Frequency Bands:
11a: 4.945 – 4.985 (restricted Public Safety band)
11a: 5.15-5.25 GHz (UNII 1)
11a: 5.725-5825 GHz (UNII 3)
11b/g: 2.412-2.462 GHz (FCC)
Antennas:
12 x internal 6 dBi 60° 802.11a sectorized
12 x internal 3 dBi 180° 802.11b/g sectorized
1 x internal 2 dBi 360° omni-directional (for RF
monitoring)
3 x external RP-TNC connectors for three
802.11a/b/g/n radios
Radio Approvals:
FCC (United States)
Compliance
FCC Part 15.107 and 15109, Class B
Warranty
One year (hardware and software)
See Also
Key Features and Benefits
Wi-Fi Array Product Overview
Product Specifications (XN16 and XN8)
Power over Gigabit Ethernet (PoGE) (Optional)
The Xirrus Family of Products
Why Choose the Xirrus Wi-Fi Array?
24
Introduction
Wi-Fi Array
Introduction
25
Wi-Fi Array
26
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Wi-Fi Array
Installing the Wi-Fi Array
The instructions for completing a successful installation include the following
topics:
“Installation Prerequisites” on page 27.
“Planning Your Installation” on page 30.
“Installation Workflow” on page 49.
“Unpacking the Wi-Fi Array” on page 50.
“Installing Your Wi-Fi Array” on page 52.
“Powering Up the Wi-Fi Array” on page 73.
“Establishing Communication with the Array” on page 76.
“Performing the Express Setup Procedure” on page 77.
Installation Prerequisites
Your Wi-Fi Array deployment requires the presence of hardware and services in
the host wired/wireless network, including:
Dedicated AC power outlet
Unless you are using Xirrus PoGE, you need a dedicated power outlet to
supply AC power to each unit deployed at the site. If you are using the
optional PoGE, then power is supplied over the same Cat 5e or Cat 6
cable used for data. PoGE power injector modules are available in 1 port
and 8 port configurations and are typically placed near your Gigabit
Ethernet switch. An AC outlet is required for each injector module.
Ethernet port
You need at least one 100/1000 BaseT port to establish wired Gigabit
Ethernet connectivity (via the product’s Gigabit 1 or Gigabit 2 port) and
one 10/100 BaseT port (if desired) for product management.
The Array’s Ethernet ports should be connected to an Ethernet switch, not
an Ethernet hub—if a hub is used, we recommend that you connect only
one Ethernet port.
Installing the Wi-Fi Array
27
Wi-Fi Array
The Gigabit1 Ethernet interface is the primary port for both data and
management traffic. If a single Ethernet connection is used, it must be
connected to the Gigabit1 Ethernet interface. See also, “Port Failover
Protection” on page 40.
The 10/100 Ethernet Port may be used for managing the Array out of
band from the Gigabit Ethernet ports. The 10/100 port will route only
management traffic, using a static route that may be configured for this
interface. See “interface” on page 273.
Secure Shell (SSH) utility
To establish secure remote command line access to the Array, you need a
Secure Shell (SSH) utility, such as PuTTY.
Secure Web browser
Either Internet Explorer (version 6.0 or higher), Netscape Navigator
(version 7.0 or higher), or Mozilla Firefox (version 1.01 or higher).
A secure Web browser is required for Web-based management of the
Array. The browser must be on the same subnet as the Array, or you must
set a static route for management as described in the warning above.
Serial connection capability
To connect directly to the console port on the Array, your computer must
be equipped with a male 9-pin serial port and terminal emulation
software (for example, HyperTerminal). The Xirrus Array only supports
serial cable lengths up to 25’ per the RS-232 specification.
Use the following settings when establishing a serial connection:
Bits per second
Data bits
Parity
Stop bits
Flow control
28
115,200
None
None
Installing the Wi-Fi Array
Wi-Fi Array
Optional Network Components
The following network components are optional.
Xirrus Management System (XMS)
The optional XMS offers powerful management features for small or large
Wi-Fi Array deployments.
Xirrus Power over Gigabit Ethernet (PoGE)
The optional Power over Gigabit Ethernet (PoGE) modules allow you to
provide power the Array without running power cables. The 8 Port
Injector provides distributed power to multiple Arrays, eliminating the
need to run dedicated AC power to each unit and facilitating backup
power when connected via a UPS.
Specific models of the Array are compatible with specific PoGE modules.
For details, please see “Contact Information” on page 349.
External RADIUS server
Although your Array comes with an embedded RADIUS server, for
802.1x authentication in large deployments you may want to add an
external RADIUS server.
Client Requirements
The Wi-Fi Array should only be used with Wi-Fi certified client devices.
See Also
Coverage and Capacity Planning
Deployment Examples
Failover Planning
Planning Your Installation
Installing the Wi-Fi Array
29
Wi-Fi Array
Planning Your Installation
This section provides guidelines and examples to help you plan your Xirrus Wi-Fi
Array deployment to achieve the best overall coverage and performance. We
recommend you conduct a site survey to determine the best location and settings
for each Array you install.
General Deployment Considerations
The Wi-Fi Array’s unique multi-radio architecture generates 360 degrees of
sectored high-gain 802.11a/b/g/n coverage that provides extended range.
However, the number, thickness and location of walls, ceilings or other objects
that the wireless signals must pass through may affect the range. Typical ranges
vary depending on the types of materials and background RF (radio frequency)
noise at your location. To maximize wireless range, follow these basic guidelines:
1.
Keep the number of walls and ceilings between the Array and your
receiving devices to a minimum—each wall or ceiling can reduce the
wireless range from between 3 and 90 feet (1 to 30 meters). Position your
devices so that the number of walls or ceilings is minimized.
2.
Be aware of the direct line between each device. For example, a wall that
is 1.5 feet thick (half a meter) at 90° is actually almost 3 feet thick (or 1
meter) when viewed at a 45° angle. At an acute 2° degree angle the same
wall is over 42 feet (or 14 meters) thick! For best reception, try to ensure
that your wireless devices are positioned so that signals will travel
straight through a wall or ceiling.
90°
45°
2°
> 42 feet\
14 m
1.5 feet/
.5 m
~ 3 feet/
1m
Figure 8. Wall Thickness Considerations
30
Installing the Wi-Fi Array
Wi-Fi Array
3.
Try to position wireless client devices so that the signal passes through
drywall (between studs) or open doorways and not other materials that
can adversely affect the wireless signal.
See Also
Coverage and Capacity Planning
Deployment Examples
Deployment Summary
Installation Prerequisites
Installing the Wi-Fi Array
31
Wi-Fi Array
Coverage and Capacity Planning
This section considers coverage and capacity for your deployment(s), including
placement options, RF patterns and cell sizes, area calculations, roaming
considerations, and channel allocations.
Placement
Use the following guidelines when considering placement options:
1.
The best placement option for the Array is ceiling-mounted within an
open plan environment (cubicles rather than fixed walls).
2.
Keep the Array away from electrical devices or appliances that generate
RF noise. Because the Array is generally mounted on ceilings, be aware of
its position relative to lighting (especially fluorescent lighting)—we
recommend maintaining a distance of at least 3 to 6 feet (1 to 2 meters).
3.
If using multiple Arrays in the same area, maintain a distance of at least
100 ft/30m between Arrays if there is direct line-of-sight between the
units, or at least 50 ft/15m if a wall or other barrier exists between the
units.
100 ft/ 30m
100 ft/
30 m
100 ft/ 30 m
Figure 9. Unit Placement
32
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Wi-Fi Array
RF Patterns
The Wi-Fi Array allows you to control—automatically or manually—the pattern
of wireless coverage that best suits your deployment needs. You can choose to
operate with full coverage, half coverage, or custom coverage (by enabling or
disabling individual sectors).
Full (Normal) Coverage
In normal operation, the Array provides a full 360 degrees of coverage.
Figure 10. Full (Normal) Coverage
Half Coverage
If installing a unit close to an exterior wall, you can deactivate half of the radios to
prevent redundant signals from “bleeding” beyond the wall and extending
service into public areas. The same principle applies if you want to restrict service
to an adjacent room within the site.
outside wall
Figure 11. Adjusting RF Patterns
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33
Wi-Fi Array
Custom Coverage
Where there are highly reflective objects in close proximity to the Array, you can
turn off specific radios to avoid interference and feedback.
reflective
object
Figure 12. Custom Coverage
Capacity and Cell Sizes
Connection Rate (Mbps)
Cell sizes should be estimated based on the number of users, the applications
being used (for example, data/video/voice), and the number of Arrays available
at the location. The capacity of a cell is defined as the minimum data rate desired
for each sector multiplied by the total number of sectors being used.
54
45
36
27
18
10
(3m)
50
100 150 200 250 300 350
(30m)
(60m)
(90m)
Distance (feet)
Figure 13. Connection Rate vs. Distance (relatively unobstructed area)
34
Installing the Wi-Fi Array
Wi-Fi Array
Figure 13 shows some sample maximum connection rates for the XN8 and XN16
at different distances in an unobstructed area. Wireless environments can vary
greatly so the actual rates may be different depending on the specific network
deployment.
The XN4 has a smaller range than the larger Arrays. The distance is about
80% of the values shown in Figure 13 above. Thus the maximum cell size is
about 64% of the coverage area in the chart.
Fine Tuning Cell Sizes
Adjusting the transmit power allows you to fine tune cell sizes. There are four
standard sizes—Small, Medium, Large, or Max (the default is Max). There is also
an Auto setting that automatically determines the best cell size, and a Manual
setting that allows you to choose your power settings directly. If you are installing
many units in close proximity to each other, reduce the transmit power to avoid
excessive interference with other Arrays or installed APs. See also, “Coverage and
Capacity Planning” on page 32.
Small
Medium
Large
Figure 14. Transmit Power
Sharp Cell
This feature available from the Web Management Interface reduces interference
between neighboring Wi-Fi Arrays or other Access Points by limiting to a defined
Installing the Wi-Fi Array
35
Wi-Fi Array
boundary (cell size) the trailing edge bleed of RF energy. To enable the Sharp Cell
feature, go to “Global Settings (IAP)” on page 209.
Roaming Considerations
Cells should overlap approximately 10 - 15% to accommodate client roaming.
ROAMING
10 - 15% overlap
Figure 15. Overlapping Cells
Allocating Channels
Because the Wi-Fi Array is a multi-channel device, allocating the best channels to
radios is important if peak performance is to be maintained.
Automatic Channel Selection
We recommend that you allow the Array to make intelligent channel allocation
decisions automatically. In the automatic mode, channels are allocated
dynamically, driven by changes in the environment.
36
Installing the Wi-Fi Array
Wi-Fi Array
Manual Channel Selection
You can manually assign channels on a per radio basis, though manual selection
is not recommended (and not necessary).
To avoid co-channel interference, do not select adjacent channels for radios
that are physically next to each other.
Maintain channel separation
Figure 16. Allocating Channels Manually
See Also
Deployment Examples
Failover Planning
Installation Prerequisites
Installing the Wi-Fi Array
37
Wi-Fi Array
Deployment Examples
The following examples employ 802.11a cells, each offering minimum
throughputs of 54 Mbps, 36 Mbps, and 18 Mbps per sector respectively, and
assume a floor plan covering a total area of about 60,000 square feet (5574 sq m).
Figure 17. Deployment Scenario (54 Mbps)—Per Sector
Figure 18. Deployment Scenario (36 Mbps)—Per Sector
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Installing the Wi-Fi Array
Wi-Fi Array
Figure 19. Deployment Scenario (18 Mbps)—Per Sector
See Also
Coverage and Capacity Planning
Failover Planning
Planning Your Installation
Installing the Wi-Fi Array
39
Wi-Fi Array
Failover Planning
This section discusses failover protection at the unit and port levels.
Port Failover Protection
To ensure that service is continued in the event of a port failure, you can utilize
the Gigabit 1 and Gigabit 2 ports simultaneously.
Multiple port connections
Ethernet switch
Figure 20. Port Failover Protection
In addition, the Array has full failover protection between the Gigabit 1 and
Gigabit 2 Ethernet ports (see following table).
Interface
Bridges
Data?
Bridges
Management
Traffic?
Fails Over To:
IP address
Fast Ethernet
No
Yes
None
DHCP or
static
Gigabit 1
Yes
Yes
Gigabit 2
DHCP or
static
Gigabit 2
Yes
Yes
Gigabit 1
Assumes the
IP address of
Gigabit 1
40
Installing the Wi-Fi Array
Wi-Fi Array
Switch Failover Protection
To ensure that service is continued in the event of a switch failure, you can
connect Arrays to more than one Ethernet switch (not a hub).
Ethernet connections
Backup switch
Ethernet switch
Figure 21. Switch Failover Protection
Gigabit Ethernet connections must be on the same subnet.
See Also
Coverage and Capacity Planning
Deployment Examples
Installation Prerequisites
Network Management Planning
Planning Your Installation
Power Planning
Security Planning
Installing the Wi-Fi Array
41
Wi-Fi Array
Power Planning
The XN8 and XN16 Array models and all four-port Arrays support both AC
power and Power over Gigabit Ethernet (PoGE). This section discusses the AC
and PoGE power options.
AC Power
The AC power option requires a direct connection between the Array and a
dedicated AC power outlet. The power cord is provided with the unit.
Power over Gigabit Ethernet
To deliver power to the Array, you may use the optional XP1 or XP8 Power over
Gigabit Ethernet (PoGE) modules. They provide power over Cat 5e or Cat 6 cables
to the Array without running power cables—see Figure 4 on page 10.
Specific models of the Array are compatible with specific PoGE modules. For
details, please see “Contact Information” on page 349.
When using Cat 5e or Cat 6 cable, power can be provided up to a distance of
100m.
See Also
Coverage and Capacity Planning
Deployment Examples
Failover Planning
Network Management Planning
Security Planning
Security Planning
This section offers some useful guidelines for defining your preferred encryption
and authentication method. For additional information, see “Understanding
Security” on page 165 and the Security section of “Frequently Asked Questions”
on page 334.
Wireless Encryption
Encryption ensures that no user can decipher another user’s data transmitted
over the airwaves. There are three encryption options available to you, including:
42
Installing the Wi-Fi Array
Wi-Fi Array
WEP-40bit or WEP-128bit
Because WEP is vulnerable to cracks, we recommend that you only use
this for legacy devices that cannot support a stronger encryption type.
Wi-Fi Protected Access (WPA)
This is much more secure than WEP and uses TKIP for encryption.
Wi-Fi Protected Access (WPA2) with AES
This is government-grade encryption—available on most new client
adapters—and uses the AES–CCM encryption mode (Advanced
Encryption Standard–Counter Mode).
Authentication
Authentication ensures users are who they say they are, and occurs when users
attempt to join the wireless network and periodically thereafter. The following
authentication methods are available with the Wi-Fi Array:
RADIUS 802.1x
802.1x uses a remote RADIUS server to authenticate large numbers of
clients, and can handle different authentication methods (EAP-TLS, EAPTTLS, EAP-PEAP, and EAP-LEAP Passthrough).
Xirrus Internal RADIUS server
Recommended for smaller numbers of users (about 100 or less). Supports
EAP-PEAP only
Pre-Shared Key
Uses a pass-phrase or key that is manually distributed to all authorized
users. The same passphrase is given to client devices and entered into
each Array.
MAC Access Control Lists (ACLs)
MAC access control lists provide a list of client adapter MAC addresses
that are allowed or denied access to the wireless network, and can be
used in addition to any of the above authentication methods. ACLs are
good for embedded devices, like printers and bar-code scanners (though
MAC addresses can be spoofed). The Wi-Fi Array supports 1,000 ACL
entries.
Installing the Wi-Fi Array
43
Wi-Fi Array
See Also
Failover Planning
Network Management Planning
Power Planning
44
Installing the Wi-Fi Array
Wi-Fi Array
Network Management Planning
Network management can be performed using any of the following methods:
Command Line Interface, using an SSH (Secure Shell) utility, like PuTTY.
Web-based management, using the Array’s embedded Web Management
Interface (WMI). This method provides configuration and basic
monitoring tools, and is good for small deployments (one or two units).
Centralized Web-based management, using the optional Xirrus
Management System (XMS), which can be run on a dedicated Xirrus
appliance (XM-3300) or your own server. The XMS is used for managing
large Wi-Fi Array deployments from a centralized Web-based interface
and offers the following features:
Š
Globally manage large numbers of Arrays (up to 500)
Š
Seamless view of the entire wireless network
Š
Easily configure large numbers of Arrays
Š
Rogue AP monitoring
Š
Easily manage system-wide firmware updates
Š
Monitor performance and trends
Š Aggregation of alerts and alarms
See Also
Failover Planning
Power Planning
Security Planning
Installing the Wi-Fi Array
45
Wi-Fi Array
WDS Planning
WDS (Wireless Distribution System) creates wireless backhauls between arrays,
allowing your wireless network to be expanded using multiple Arrays without
the need for a wired backbone to link them (see Figure 22). WDS features include:
One to three IAPs may be used to form a WDS link, yielding up to 162
Mbps bandwidth per link. Up to 4 WDS links may be defined per Array.
Automatic IAP Load Balancing
Clients can still associate to a BSS on the same radio interface used for a
WDS Host Link. This will take bandwidth from the WDS link.
Figure 22. WDS Link
Multiple links per Array allow you to configure multi-hop connections.
Figure 23. A Multiple Hop WDS Connection
46
Installing the Wi-Fi Array
Wi-Fi Array
Multiple WDS links can provide link redundancy (failover capability - see
Figure 24). A network protocol (Spanning Tree Protocol—STP) prevents
Arrays from forming network loops.
Figure 24. WDS Failover Protection
WDS links have a Host/Client relationship similar to the usual IAP/station
pattern for Arrays:
A WDS Client Link associates/authenticates to a host (target) Array in the
same way that a station associates to an IAP. The client side of the link
must be configured with the root MAC address of the target (host) Array.
A WDS Host Link acts like an IAP by allowing one WDS Client Link to
associate to it. An Array may have both client and host links.
WDS configuration is performed only on the client-side Array. See “WDS” on
page 229. Note that both Arrays must be configured with the same SSID name.
Installing the Wi-Fi Array
47
Wi-Fi Array
Deployment Summary
The following table summarizes your deployment options.
Number of Wi-Fi Arrays
Function
One or Two
Three or More
AC
AC
Power over Gigabit
Ethernet
Power over Gigabit Ethernet
UPS backup
(recommended)
Failover
Recommended
Highly recommended
VLANs
Optional
Optional use,
Power
Can be used to put all APs
on one VLAN or map to
existing VLAN scheme
Encryption
Authentication
WPA2 with AES
(recommended)
WPA2 with AES
(recommended)
PSK or 802.1x
802.1x keying
Internal RADIUS server
EAP-PEAP
External RADIUS server
Pre-Shared Key
Management
Internal WMI
XMS (SNMP)
Internal CLI
See Also
Coverage and Capacity Planning
Deployment Examples
Network Management Planning
Planning Your Installation
Power Planning
Security Planning
48
Installing the Wi-Fi Array
Wi-Fi Array
Installation Workflow
This workflow illustrates the steps that are required to install and configure your
Wi-Fi Array successfully. Review this flowchart before attempting to install the
unit on a customer’s network.
Determine the number of Arrays needed
Choose the location(s) for your Wi-Fi Arrays
AC
AC or PoGE?
Run AC power and Ethernet cables
PoGE
Run Ethernet cables (<100m total
idistance from switch)
Install the mounting plate
Connect the cables and turn on the power
Verify that the Ethernet link and radio LEDs are functioning correctly
Perform the Express Setup procedure
Figure 25. Installation Workflow
Installing the Wi-Fi Array
49
Wi-Fi Array
See Also
Coverage and Capacity Planning
Deployment Examples
Deployment Summary
Failover Planning
Installation Prerequisites
Planning Your Installation
Power Planning
Wi-Fi Array Product Overview
Product Specifications (XN16 and XN8)
Product Specifications (XN4)
Security Planning
Unpacking the Wi-Fi Array
When you unpack your Wi-Fi Array, you will find the following items in the
carton:
Item
50
Quantity
Xirrus Wi-Fi Array
AC power cord
Console cable
Mounting plate
Mounting screws
Tile grid mounting clamps
Clamp nuts
Mounting template
Installing the Wi-Fi Array
Wi-Fi Array
Item
Quantity
CD-ROM containing:
This User’s Guide in PDF format
End User License Agreement (EULA)
README file
Quick Install Guide
Registration Card
See Also
Installation Prerequisites
Installation Workflow
Installing the Wi-Fi Array
51
Wi-Fi Array
Installing Your Wi-Fi Array
This section provides instructions for completing a physical installation of your
Xirrus Wi-Fi Array.
Choosing a Location
Based on coverage, capacity and deployment examples previously discussed,
choose a location for the Array that will provide the best results for your needs.
The Wi-Fi Array was designed to be mounted on a ceiling where the unit is
unobtrusive and wireless transmissions can travel unimpeded throughout open
plan areas.
You also have the option of mounting the Array on a wall, using the optional wall
mount assembly kit. For wall mount instructions, go to “Mounting the Array on a
Wall (XN16/XN8)” on page 62.
Choose a location that is central to your users (see the following diagram for
correct placement.
WRONG
RON
RO
ON
WRONG
RON
RO
O G
ON
CORRECT
ORRE
ORREC
Figure 26. Array Placement
52
Installing the Wi-Fi Array
Wi-Fi Array
Wiring Considerations
Unless you are using the Xirrus Power over Gigabit Ethernet modules (PoGE)
with an Array that supports PoGE, an AC power outlet must be available to the
Array. If you are using PoGE to distribute power, see “Power over Gigabit
Ethernet (PoGE) (Optional)” on page 10.
Once you have determined the best location for your Wi-Fi Array, you must run
cables to the location for the following services:
Power
One of the following options:
No power cable is required if using PoGE modules.
Dedicated AC power if PoGE is not in use. You must use a ULapproved cord. Order the power cord from the Xirrus product
list—Xirrus supplies only UL-approved power cords.
Network
Gigabit 1—If using PoGE modules, the Cat 5e or Cat 6 cable from
the Gigabit Ethernet switch to the Array must be less than 100m
long. The Array must be connected to PoGE networks without
routing cabling to the outside plant, to ensure that cabling is not
exposed to lightning strikes or possible high voltage crossover.
Gigabit 2 (optional)
Fast Ethernet (optional)
Serial cable— cable lengths up to 25’ per the RS-232 specification.
Important Notes About Network Connections
Read the following notes before making any network connections.
When the unit’s IP address is unknown or a network connection has not
been established, the serial cable is used for connecting directly with the
Command Line Interface (CLI) via HyperTerminal. When a network
connection is established, the Array can be managed from any of the
available network connections, either Fast Ethernet, Gigabit 1 or Gigabit 2.
Installing the Wi-Fi Array
53
Wi-Fi Array
The Array’s Ethernet ports should be plugged into an Ethernet switch, not an
Ethernet hub—if a hub is used, we recommend that you connect only one
Ethernet port.
The Gigabit1 Ethernet interface is the primary port for both data and
management traffic. If a single Ethernet connection is used, it must be
connected to the Gigabit1 Ethernet interface. See also, “Port Failover
Protection” on page 40.
The 10/100 Ethernet Port may be used for managing the Array out of band
from the Gigabit Ethernet ports. The 10/100 port will route only management
traffic, using a static route that may be configured for this interface. See
“interface” on page 273.
See Also
Failover Planning
Installation Prerequisites
Installation Workflow
Mounting the Wi-Fi Array on a Wall (XN4)
Mounting the Array on a Wall (XN16/XN8)
Mounting the Array on a Ceiling
Power over Gigabit Ethernet (PoGE) (Optional)
Unpacking the Wi-Fi Array
Mounting the Array on a Ceiling
Most offices have drop-down acoustical ceiling tiles set into a standard grid. The
Wi-Fi Array has been designed to enable mounting to a tiled ceiling via a
mounting plate and clamps that attach to the grid. Once the mounting plate is
attached, the Array simply rotates onto the plate (similar to a smoke detector).
Once the unit is mounted it can be removed and re-attached easily, without the
need for tools or modifications to the original installation.
This section assumes that you are mounting the Array to a tiled ceiling. If your
ceiling is not tiled, the mounting plate can be attached directly to the ceiling with
the screws and anchors provided (without using the tile grid mounting clamps).
54
Installing the Wi-Fi Array
Wi-Fi Array
Attaching the T-Bar Clips to the Template
The T-bar clips are used to create four mounting points on the ceiling tile grid for
the Array mounting plate. Use the mounting template (provided) to find the
correct location for all four clamps by pre-loading the 4 T-bar clips through the
holes in the mounting template. Twist the clips until they are correctly aligned
with the markings on the template.
Figure 27. Attaching the T-Bar Clips to the Template
Secure the T-Bar Clips to the Ceiling Support Grid
The mounting template should be oriented so that the Array’s abg2 omnidirectional monitoring IAP (radio) is pointing in the direction of the least required
wireless signal coverage—for example, a nearby exterior wall or entrance.
Use the mounting template to find the correct location for all four T-bar clips, then
twist the clips onto the metal ceiling support grid and tighten the screw posts to
10-12 lbf.ft (1.38-1.66 kgf.m). See Figure 28. Do not overtighten the screw posts.
Installing the Wi-Fi Array
55
Wi-Fi Array
Disengage the template from the screw posts (4 places) and remove the template
from the ceiling.
Ceiling tile grid
Template
T-bar clips (4 places)
Tighten the screw post
Figure 28. Attaching the T-Bar Clips to the Ceiling Grid
56
Installing the Wi-Fi Array
Wi-Fi Array
Installing the Mounting Plate
Locate the mounting plate on the four screw posts. Secure the plate to the four
clamps using the nuts provided. Tighten the nuts to 10-12 lbf.ft (1.38-1.66 kgf.m),
but do not overtighten.
Cut an access hole for the cables in the ceiling tile.
Tile grid
Mounting Plate
Figure 29. Installing the Mounting Plate
Installing the Wi-Fi Array
57
Wi-Fi Array
Connecting the Cables
Feed the power and Ethernet cables through the access hole in the tile and the
mounting plate, then connect the cables to the unit. See also, “Wiring
Considerations” on page 53.
Figure 30. Connecting the Cables
When the cables are connected, turn on the power switch—before attaching the
unit to the mounting plate (next step). Verify that the Ethernet link LED lights and
the LED boot sequence begins. The radio LEDs on the front of the unit will
illuminate in rotation, indicating that the Wi-Fi Array software is loading and the
unit is functioning correctly.
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Wi-Fi Array
Attaching the Array to the Mounting Plate (XN16/XN8/XN4)
Align the Array with the key post on the mounting plate, then turn the Array to
the right to lock the unit into place at the 4 lugs—similar to a smoke detector.
Key post
Lug
Alignment hole
Figure 31. Attaching the Unit (XN4)
See Also
Installation Workflow
Installing Your Wi-Fi Array
Mounting the Wi-Fi Array on a Wall (XN4)
Mounting the Array on a Wall (XN16/XN8)
Securing the Array
Installing the Wi-Fi Array
59
Wi-Fi Array
Securing the Array
For added security, there is a locking bracket incorporated into the mounting
plate, which will accept a small luggage-style padlock (if desired). There is also a
Kensington lock slot located near the Ethernet ports. In addition, the mounting
plate incorporates a positive locking tab that prevents the unit from being
inadvertently released.
Locking bracket
Figure 32. Securing the Array
Now that the Array is physically installed, you must run the Express Setup
procedure from the unit’s Web Management Interface to enable the radios and
establish initial system configuration settings. Go to “Powering Up the Wi-Fi
Array” on page 73.
See Also
Installation Workflow
Installing Your Wi-Fi Array
Mounting the Wi-Fi Array on a Wall (XN4)
Mounting the Array on a Wall (XN16/XN8)
Mounting the Array on a Ceiling
Powering Up the Wi-Fi Array
60
Installing the Wi-Fi Array
Wi-Fi Array
Dismounting the Array
To dismount the Array, place your fingers so as to increase the space between the
Array and the mounting plate at the positions indicated by the decals on the
mounting plate—these are aligned with IAPs (radios) abg1 and abg3, as indicated
on the clock-face of the Array.
a12
a11
a1
abg4
abg1
a10
a2
a3
a9
a8
a4
abg2
abg3
a7
a5
a6
Figure 33. IAP Positions (XN16)
See Also
Installation Workflow
Installing Your Wi-Fi Array
Mounting the Wi-Fi Array on a Wall (XN4)
Mounting the Array on a Wall (XN16/XN8)
Mounting the Array on a Ceiling
Securing the Array
Installing the Wi-Fi Array
61
Wi-Fi Array
Mounting the Array on a Wall (XN16/XN8)
This procedure is applicable to the Wi-Fi Array’s 16-radio models (XN16) and 8radio models (XN8). If you are mounting a 4 radio model, go to “Mounting the
Wi-Fi Array on a Wall (XN4)” on page 67.
The wall mounting assembly kit is used to mount the Wi-Fi Array (16-radio or
8-radio models) on a wall, instead of the traditional ceiling mount—if mounting
the Array on the ceiling is impractical at your location.
Kit Contents (Wall Mount Assembly - XN16 and XN8)
The wall mount assembly kit includes the following items:
5 x SNAPTOGGLE™ toggle bolts (for attaching the wall bracket to the
wall)
4 x 1/4 inch bolt assemblies (for attaching the mounting plate to the wall
bracket)
Wall Mounting Bracket
Tools Required
62
Power drill
1/2 inch (13mm) drill bit
Cross head screwdriver
1/4 inch nut wrench
Pencil
Level
Installing the Wi-Fi Array
Wi-Fi Array
Mark the Wall Position
1.
Use the Wall Mounting Bracket as a template and mark the locations on
the wall for the mounting holes.
Mark holes (5 places)
Figure 34. Wall Mount—Marking the Holes
When marking the holes, ensure that the mounting plate is level—you
may need assistance.
The bracket must be secured to the wall in 5 places, using the 2 holes at the
top and the 3 holes at the bottom (5 toggle bolts are provided).
Installing the Wi-Fi Array
63

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