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Wi-Fi Array

20

Introduction

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?

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)

Element

Specifications

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Summary of Contents for Wi-Fi Array XN16

Page 1: ...June 10 2008 ...

Page 2: ......

Page 3: ...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 Wi Fi Array XN16 XN8 XN4 ...

Page 4: ...armful 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 z Reorient or relocate the receiving antenna z Increase the separation between the equipment and the receiver z Consult the dealer or an experienced wireless technician for help Use of a shiel...

Page 5: ...rom 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 us...

Page 6: ...me 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 ...

Page 7: ...spricht 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 esencia...

Page 8: ... 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 Dyrekty...

Page 9: ... 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 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 ...

Page 10: ...opriate take back systems will reuse or recycle most of the materials of this equipment in a way that will not harm the environment z 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 z If you need more information on collection re use and recyc...

Page 11: ...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 aange...

Page 12: ...ommunicazioni 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 Liechtens...

Page 13: ... 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...

Page 14: ...does not exceed 50 C Explosive Device Proximity Warning 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 Lightning Activity Warning Do not work on the XN16 XN8 XN4 or connect or disconnect cables during periods of lightning activity Circuit Breaker Warning The XN16 XN8 XN4 r...

Page 15: ...t ambiante n excède pas 50 C Proximité d appareils explosifs 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 Foudre N utilisez pas l unité XN16 XN8 XN4 et ne branchez pas ou ne débranchez pas de câbles en cas de foudre Disjoncteur L unité XN16 XN8 XN4 dépend de l insta...

Page 16: ...E 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 r...

Page 17: ...icenses 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 Soft...

Page 18: ... 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 for...

Page 19: ...ARDOUS 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 INJU...

Page 20: ...tion 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...

Page 21: ...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 Agre...

Page 22: ...tional laws governing the Software This Agreement will be governed by and construed under the laws of the State of California and the United States as applied to agreements entered into and to be performed entirely within California without regard to conflicts of laws provisions thereof and the parties expressly exclude the application of the United Nations Convention on Contracts for the Internat...

Page 23: ...arrant that the Equipment is error free or that Customer will be able to operate the Equipment without problems or interruptions This warranty does not apply if the Equipment a has been altered except by Xirrus b has not been installed operated repaired or maintained in accordance with instructions supplied by Xirrus c has been subjected to abnormal physical or electrical stress misuse negligence ...

Page 24: ... 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 the responsibility to obtain license...

Page 25: ...ce Information z Safety Warnings z Translated Safety Warnings z Software Warranty and License Agreement z 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 ...

Page 26: ...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 Swit...

Page 27: ...nts 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 SNA...

Page 28: ...n 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 Window...

Page 29: ...s 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 Setti...

Page 30: ...ming 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 ...

Page 31: ...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 27...

Page 32: ...8 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 th...

Page 33: ...ator 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...

Page 34: ...Wi Fi Array x Table of Contents ...

Page 35: ... 36 Figure 16 Allocating Channels Manually 37 Figure 17 Deployment Scenario 54 Mbps Per Sector 38 Figure 18 Deployment Scenario 36 Mbps Per Sector 38 Figure 19 Deployment Scenario 18 Mbps Per Sector 39 Figure 20 Port Failover Protection 40 Figure 21 Switch Failover Protection 41 Figure 22 WDS Link 46 Figure 23 A Multiple Hop WDS Connection 46 Figure 24 WDS Failover Protection 47 Figure 25 Installa...

Page 36: ...ure 48 WMI Frames 86 Figure 49 WMI Status Bar 87 Figure 50 Feedback Form 88 Figure 51 Logging In to the Wi Fi Array 89 Figure 52 Array Summary 92 Figure 53 Disabled IAP Partial View 94 Figure 54 IAP Cells 95 Figure 55 Array Information 96 Figure 56 Show Configuration 97 Figure 57 Network Map 98 Figure 58 Spanning Tree Status 100 Figure 59 Routing Table 101 Figure 60 DHCP Leases 102 Figure 61 Conne...

Page 37: ...n Statistics 130 Figure 85 Individual Station Statistics Page 131 Figure 86 System Log modified for clarity 132 Figure 87 WMI Express Setup 134 Figure 88 LEDs are Switched On 139 Figure 89 Network Interfaces 140 Figure 90 Network Settings 141 Figure 91 Network Interface Ports 142 Figure 92 Port Modes a b 144 Figure 93 Port Modes c d 145 Figure 94 Port Modes e f 146 Figure 95 DNS Settings 148 Figur...

Page 38: ...24 Advanced RF Settings 221 Figure 125 LED Settings 227 Figure 126 WDS 229 Figure 127 Configuring a WDS Link 230 Figure 128 WDS Client Links 231 Figure 129 Filters 233 Figure 130 Filter Lists 234 Figure 131 Filter Management 235 Figure 132 System Tools 240 Figure 133 Saving the Diagnostic Log 243 Figure 134 Managing WPR Splash Login page files 244 Figure 135 System Command Ping 245 Figure 136 CLI ...

Page 39: ...from the Array 307 Figure 155 Removing the Access Panel Screws 309 Figure 156 Removing the Access Panel 310 Figure 157 Disconnecting the Power Supply and Fan 310 Figure 158 Reconnecting the Fan and Power Supply 312 Figure 159 Reinstalling the Access Panel 312 Figure 160 Removing the FLASH Memory Module 314 Figure 161 Removing the DIMM Memory Module 316 Figure 162 Removing the Chassis Cover Screws ...

Page 40: ...Wi Fi Array xvi List of Figures ...

Page 41: ...s family of products includes the following items z 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 z Xirrus Management System XMS XMS is used for managing large Wi Fi Array deployments from a centralized Web based interface ...

Page 42: ...s product refer to the XMS User s Guide part number 800 0007 001 z 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 ...

Page 43: ...able 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 z Introduction Provides a brief introduction to wireless technology an overview of the product includi...

Page 44: ...e 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 z Appendix A Servicing the Wi Fi Array Contains procedures for servicing the Array including the removal and reinstallatio...

Page 45: ...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 In...

Page 46: ... 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 z 802 11a Operates in the 5 GHz range with a maximum speed ...

Page 47: ...ure 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 hundr...

Page 48: ...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 See Also Key Features and Benefits Wi Fi Array Product Overview Feature XN16 XN8 XN4 Number of 802 11 a b g n radios 4 ...

Page 49: ...nually creating a pattern of wireless coverage perfectly tailored to individual customer needs For example Figure 3 Wireless Coverage Patterns Figure 3 depicts the following two scenarios z 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 z Partial pat...

Page 50: ... 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 Fe...

Page 51: ... 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 ...

Page 52: ...pliant management tool such as the optional Xirrus Management System 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 For deployments of more than five Arrays we recommend that you use the Xirrus Management System XMS The XMS offers a rich set o...

Page 53: ... 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 ...

Page 54: ...network Your Wi Fi Array deployment ensures z Continuous connectivity if an IAP radio fails z Continuous connectivity if an Array fails z Continuous connectivity if a WDS link or switch fails z Continuous connectivity if a Gigabit uplink or switch fails Flexible Coverage Schemes Your Wi Fi Array offers flexible coverage schemes for each wireless technology Figure 7 Coverage Schemes z 802 11a n Del...

Page 55: ...tocol 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...

Page 56: ...ment 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 1 GHz CPU XN16 ...

Page 57: ...0 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...

Page 58: ...0bit 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 Authentic...

Page 59: ...d 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 connector...

Page 60: ...hy Choose the Xirrus Wi Fi Array 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 Element Specifications ...

Page 61: ...ondensing 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 Inter...

Page 62: ... 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 Elem...

Page 63: ...ification 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 Element Specifications ...

Page 64: ...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 radio...

Page 65: ...Wi Fi Array Introduction 25 ...

Page 66: ...Wi Fi Array 26 Introduction ...

Page 67: ...etwork including z 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 Ethern...

Page 68: ...r 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 The Gigabit1 Ethernet interface is the primary port for both data and management traffic If a single Ethernet connection is used ...

Page 69: ...uted 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 z External RADIUS server Although your Array comes with an embedded RADIUS server for 802 1x authentication in large deployments ...

Page 70: ...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 mini...

Page 71: ...ess 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 ...

Page 72: ...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...

Page 73: ...sabling 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 se...

Page 74: ...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 Figure 13 Connection Rate vs Distance relatively unobstructed area object reflective 0 9 18 27 36 45 54 10 3m 50 1...

Page 75: ... 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 Figure 14 Transmit Power Sharp Cell This feature available from the Web Management Interface r...

Page 76: ...client roaming 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...

Page 77: ...is though manual selection is not recommended and not necessary Figure 16 Allocating Channels Manually See Also Deployment Examples Failover Planning Installation Prerequisites To avoid co channel interference do not select adjacent channels for radios that are physically next to each other Maintain channel separation ...

Page 78: ...ploy 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 ...

Page 79: ...Wi Fi Array Installing the Wi Fi Array 39 Figure 19 Deployment Scenario 18 Mbps Per Sector See Also Coverage and Capacity Planning Failover Planning Planning Your Installation ...

Page 80: ...nd Gigabit 2 ports simultaneously 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...

Page 81: ... to more than one Ethernet switch not a hub Figure 21 Switch Failover Protection See Also Coverage and Capacity Planning Deployment Examples Installation Prerequisites Network Management Planning Planning Your Installation Power Planning Security Planning Gigabit Ethernet connections must be on the same subnet Ethernet switch Backup switch Ethernet connections ...

Page 82: ...bles 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 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 me...

Page 83: ...available with the Wi Fi Array z RADIUS 802 1x 802 1x uses a remote RADIUS server to authenticate large numbers of clients and can handle different authentication methods EAP TLS EAP TTLS EAP PEAP and EAP LEAP Passthrough z Xirrus Internal RADIUS server Recommended for smaller numbers of users about 100 or less Supports EAP PEAP only z Pre Shared Key Uses a pass phrase or key that is manually dist...

Page 84: ...Wi Fi Array 44 Installing the Wi Fi Array See Also Failover Planning Network Management Planning Power Planning ...

Page 85: ...ntralized 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 Globally manage large numbers of Arrays up to 500 Seamless view of the entire wireless network Easily configure l...

Page 86: ...e 22 WDS features include z 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 z Automatic IAP Load Balancing z 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 z Multiple links per Array allow you to configure mu...

Page 87: ...ation pattern for Arrays z 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 z 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 perfo...

Page 88: ... Fi Arrays One or Two Three or More Power AC Power over Gigabit Ethernet AC Power over Gigabit Ethernet UPS backup recommended Failover Recommended Highly recommended VLANs Optional Optional use Can be used to put all APs on one VLAN or map to existing VLAN scheme Encryption WPA2 with AES recommended PSK or 802 1x WPA2 with AES recommended 802 1x keying Authentication Internal RADIUS server EAP PE...

Page 89: ...he unit on a customer s network Figure 25 Installation Workflow Determine the number of Arrays needed Choose the location s for your Wi Fi Arrays AC PoGE 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 Run AC power and Ethernet cables Run Ethernet cables 100m total AC or P...

Page 90: ...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 Quantity Xirrus Wi Fi Array 1 AC power cord 1 Console cable 1 Mounting plate 1 Mounting screws 4 Tile grid mounting clamps 4 Clamp nuts 4 Mounting template 1 ...

Page 91: ...e Wi Fi Array 51 See Also Installation Prerequisites Installation Workflow CD ROM containing This User s Guide in PDF format End User License Agreement EULA README file 1 Quick Install Guide 1 Registration Card 1 Item Quantity ...

Page 92: ...our 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 user...

Page 93: ... cords Network z 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 z Gigabit 2 optional z Fast Ethernet optional z Serial cable cable ...

Page 94: ...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 The Array s Ethernet ports should be plugged into an Ethernet switch not an Ethernet hub if a hub is used w...

Page 95: ...th 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 omni directional 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 ...

Page 96: ...Wi Fi Array Disengage the template from the screw posts 4 places and remove the template from the ceiling Figure 28 Attaching the T Bar Clips to the Ceiling Grid Ceiling tile grid T bar clips 4 places Tighten the screw post Template ...

Page 97: ...unting 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 Figure 29 Installing the Mounting Plate Tile grid Mounting Plate ...

Page 98: ...ring 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 co...

Page 99: ...he mounting plate then turn the Array to the right to lock the unit into place at the 4 lugs similar to a smoke detector 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 Key post Lug Alignment hole ...

Page 100: ...that prevents the unit from being inadvertently released 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...

Page 101: ...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 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 a1 abg1 a2 a3 a4 abg2 a5 a6 a7 abg3 a8 a9 a10 abg4 a11 ...

Page 102: ...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 z 5 x SNAPTOGGLE toggle bolts for attaching the wall bracket to the wall z 4 x 1 4 inch bolt assemblies for attaching the mounting plate to the wall bracket z ...

Page 103: ...cations on the wall for the mounting holes 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 Mark holes 5 places ...

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