Alvarion BU-DS.11 manuel d'utilisation

BreezeNET DS.11 Series BU-DS.11 RB-DS.11 User Manual January 2005 S/W Version 4.2 P/N: 21399 3[...]

BreezeNET DS.11 Series User Manual ii[...]

Important Notice iii © Copyright Alvarion Ltd (“Alvarion”). All rights rese rved. The material contained herein is proprietary, privileged, and confidential. No disclosure thereof shall be made to third parties without the expr ess written permission of Alvarion. Alvarion reserves the right to alter the equipment specifications and description[...]

BreezeNET DS.11 Series User Manual iv Disclaimer (a) UNITS OF PRODUCT (INCLUDING ALL THE SOFT WARE) DELIVERED TO PURCHASER HEREUNDER ARE NOT FAULT -TOLERANT AND ARE NOT DESIGNED, MA NUFACTURED OR INT ENDED FOR USE OR RESALE IN APPLICATIONS WHERE T HE FAILURE, MALFUNCTION OR INACCUR ACY OF PRODUCTS CARRIES A RISK OF DEAT H OR BODILY INJURY OR SEVERE[...]

Important Notice v Limitation of Liability (a) ALVA RION SHAL L NOT B E LI ABLE TO TH E PU RCHA SER O R TO A NY TH IRD PARTY, FOR ANY LOSS OF PR OFITS, LOSS OF USE, INTERRUPTION OF BUSINESS OR FOR ANY INDIRE CT, SPECIAL, INCIDE NTAL, PUNITIVE OR CONSEQUENT IAL DAMAGES OF A NY KIND, WHET HER ARISING U NDER BREACH OF CONTRACT, TORT (INC LUDING NEGLIG[...]

BreezeNET DS.11 Series User Manual vi • Consult the dealer or an experienced radio/TV technician for help Changes or modifications to this equipm ent not expressly a pproved by the party respon sibl e for compl ianc e coul d void t he user ’s aut horit y to op erat e the equipment. FCC Radiation Exposure Statement To comply with FCC RF exposur [...]

Important Notice vii Important Notice This manual is applicable to Breez eNET DS .11 units and is delivered subject to the following conditions and restrictions: ♦ This manual contains proprietary info rmation belonging to Alvarion. Such information is supplied solely for the purpose of assisting explicitly and proper ly aut horiz ed user s of Br[...]

BreezeNET DS.11 Series User Manual viii Contacting Alvarion Technical Support Should you need assistanc e beyond the scope of this manual, please contact your local Alvarion reselle r or distributor. If th e y cannot solve your p roblem, feel free to contact the Alvarion Technical Support Departme nt. The support representative can assist you in so[...]

Table of Contents ix User Manual Table of Contents Introduction 1-1 Scope of th e Manual 1-2 System Description 1-3 Functional Description 1-3 BreezeNET DS.11 Compatibility and Standar ds 1-4 Installation 2-1 Packing List 2-2 Additional Install ation Requirements 2-2 Install ation Overview 2-3 Outdoor Installation Considerati ons 2-5 Collocating DS[...]

BreezeNET DS.11 Series User Manual x What to do if the Se lf Test Fails 2-16 The DS.11 Config uration Ut ility 3-1 Installing and Accessing the Conf iguration Utility 3-2 Configuration Utility Modes 3-2 Unit Configuration Mo de 3-3 Firmware Upgrade Mode 3-28 Multip le Unit Co nfigurati on Mode 3-30 Resetting th e SNMP Community Strings 3-31 Reloadi[...]

Table of Contents xi Table of Figures Figure 1-1: Breez eNET DS.11 Point -to-Multipoi nt Applicat ion 1- 3 Figure 2-1: General Installation Scheme - Pole Mounting 2-4 Figure 2-2: Installati on Holes/ Grooves 2-9 Figure 2-3: 3” Pole Mounting Installation Using the Supplied Brackets 2-10 Figure 2-4: Outdoor Unit B ottom Panel (shown withou t the se[...]

BreezeNET DS.11 Series User Manual xii Table of Tables Tabl e 2-1: Availabl e Antennas ............................................................................................. 2-7 Tabl e 2-2: Indoor Unit LEDs .............................................................................................. 2-15 Tabl e 2-3: Outdoor Unit LEDs ......[...]

Introduction 1-1 Chapter 1 About This Chapter This chapter is comprised of the following sections: ♦ Scope of th e Manual , page 1-2, describes the chapt ers and topics comprising the BreezeNET DS.11 Series User Manual . ♦ System Description , pa ge 1-3, provi des an ov erview of the DS .11 system and intr oduces the sy st em com pone nts.[...]

BreezeNET DS.11 Series User Manual 1-2 Scope of the Manual This manual provides instructions f or planning and setting up a wireless link based on the BreezeNET DS.11 wireless Base Unit and Remote Bridge. ♦ Chapter 1: Introduc tion - Describes how to use this manual and presents the BreezeNET DS.11 s eries. ♦ Chapter 2: Instal lation - Describe[...]

Introduction 1-3 System Description The BreezeNET DS.11 wireless Base Unit (BU-DS.11) and Remote Bridge (RB- DS.11) are designed to provide long-ran ge point-to-multipoint link s for outdoor applications. The products use direct seq uence spread spectrum radio technology operat ing at the fr equen cy ran ge of 2. 4 – 2.483 5 GHz, a part of the FC[...]

BreezeNET DS.11 Series User Manual 1-4 RB-DS.11 Wi reless Bridge The RB-DS.11 Wireless Bridge connects a remote Ethernet network to a central network ser ver or Int ernet site vi a a BU-DS.11 Multi point Base Unit. The m aximu m num ber of MAC addr ess es that the un it can handl e at an y spec ific time is 1024 and the Aging algorithm is applied a[...]

Installation 2-1 Chapter 2 About This Chapter This chapter is comprised of the following sections: ♦ Packing List , page 2-2, describes the components included with the BreezeNET DS.11 series installation kit. ♦ Additional Installation Requirements , page 2-2, describes the add itional standard tools and materials requir ed for installation. ?[...]

BreezeNET DS.11 Series User Manual 2-2 Packing List Ensure that all of the following items are in cluded with the unit’s installation kit: ♦ Indoor unit . ♦ Outdoor unit (includes integrated antenna or antenna connect or for optional connection to external antenna). ♦ Pole mounting kit fo r the outdoor unit (includes two brackets and four s[...]

Installation 2-3 Installation Overview The following outlines the steps of the installation proc edure. 1. Select appropriate locations for the ou tdoor unit, the antenna (if using an external antenna) and the indoor unit. 2. Mount the outdoor unit. If using an external antenna mount the antenna and connect it to the outdo or unit. 3. Connect a gro[...]

BreezeNET DS.11 Series User Manual 2-4 Figure 2-1: General Inst allation Sch eme - Pole Moun ting NOTE: Use a straight Ethernet cable to connect the indoor unit to a hub, or use a crossed cable to connect it directly to a PC’s Network Interface Card (NIC).[...]

Installation 2-5 Outdoor Installation Considerations This section describes various considerations to take into account when planning an outdoor installation including site selection, antenna alignment, antenna polarization, antenna seal, and cell size. Collocating DS.11 Outdoor Units Up to three BU-DS.11 units with omni-directional antennas (the e[...]

BreezeNET DS.11 Series User Manual 2-6 Path Loss Path loss is determined mainly by several factors: ♦ Distance Between Sit es: Path loss is lower and system performance is better when distances between sites are shorter. ♦ Clearance: Path l oss i s mini miz ed when ther e is a clea r lin e of s ight . The number, location, size , and makeup of [...]

Installation 2-7 Antenna Seal When using outdoor antennas, you must seal all cabl e connections to prevent water or dirt from e ntering the connector. Cell Size/Link Distance Cell size is de termined by the maximum po ssible distance between the BU-DS.11 and a RB-DS.11 unit. For open outdoor area s with an unobstructed line of sight between the BU [...]

BreezeNET DS.11 Series User Manual 2-8 Precautions Outdoor unit s and antennas should b e installed ONLY by ex perienced ant enna installation professional s who are familiar with local buil ding and safety codes an d, wher ever a pplica ble, a re l icens ed by t he appr opria te gov ernm ent r egula tory authorities. Failure to do so may void the [...]

Installation 2-9 Installing the Outdoor Unit The outdoor unit can be secured to the po le using one of the following options: ♦ Special brack ets sets (supplied with each un it). Ther e are t wo pairs of th reade d holes on the units, allowing the use of the brackets with various pole widths. ♦ Metal bands (9/16” wide, minimum 12” long). Fi[...]

BreezeNET DS.11 Series User Manual 2-10 Figure 2-3: 3” Pole Mounting Installa tion Usi ng the Supplied Brackets NOTE: When inserting the open-ende d bolts, make sure to inse rt them with the grooves pointing out wards; these grooves are intended to al lo w fastening of the bolts with a screwdriver.[...]

Installation 2-11 Connecting the Ground and Antenna Cables The Ground terminal (marked ) is located on the bottom panel of the outdoor unit. In DS.11D units the antenna’s RF connector (marked ) is located on the top panel o f the outdoor unit. Figure 2-4: Outdoor Unit Bottom P anel (shown without the service bo x) 1. Connect one en d of the g rou[...]

BreezeNET DS.11 Series User Manual 2-12 Figure 2-5: The Waterproof Service Box 1. Place t he O- ring of the ser vic e box in its in tende d locat ion. 2. Connect the Ethernet cable to the outdoor unit’s RJ-45 connector. 3. Attach the service box to the outdo or unit and then tighten the top nut. Make sure that the O-ring is in its intended locati[...]

Installation 2-13 Installing the Indoor Unit Route t he in door- to-o utdo or ca ble in to th e buil ding so t hat it con veni entl y reach es the indoor unit while avoiding interference sources. It is recommended that the cable be a li ttle l onger th en nec essa ry. The cabl e is s uppli ed op en en ded so i t can be conveniently thre aded as sho[...]

BreezeNET DS.11 Series User Manual 2-14 6. Connect the 10BaseT ETHERNET conn ector (marked ), to the ne twork. The cable connection should be straight Ethernet if connecting the indoor unit to a Hub and a cross ed cable if connect ing it directly to a PC N etwork Int erface Card (NIC). NOTE: The length of the Ethernet cable connecting the indoor un[...]

Installation 2-15 Verifying Correct Operation The following sections describe how to ensur e that the units are correctly installed and functioning pr operly. Verifying Correct Operation of the Indoor Unit To verify proper o peration, check the LED indicat ors locat ed on the to p panel of t he indoor unit as shown in Figure 2-6 on page 2-13, and a[...]

BreezeNET DS.11 Series User Manual 2-16 Name Description Functionality ETH Ethernet activity / connectivity indication OFF –Ethernet connect ivity is OK . No traffic activit y detected on th e port. Blinking Green –Ethernet connectivity is OK, with traffic on the port. Red – No Ethernet connectiv ity. When this state occurs, check the Etherne[...]

The DS.11 Configuration Utility 3-1 Chapter 3 About This Chapter The DS.11 Configuration Utility is an SNMP-based utility that provides a consistent view of the wireless network. The system administrator can use the DS.11 Configuration Utility to control a larg e number of DS.11 units from a single location. The Configuration Utility can be used to[...]

BreezeNET DS.11 Series User Manual 3-2 Installing and Accessing the Configuration Utility The Configuration Utility is provided for installation on a 3.5” diskette. 1. Insert the p rovided diskette into the computer where yo u wish to install the Configuration Utility. 2. Run DS11m gr.exe. 3. Follow all instructions until you ar e informed that t[...]

The DS.11 Configuration Utility 3-3 Unit Configuration Mode The following sections describe the vari ous screens, controls and param eters available in Unit Configuration mode. Control Window In this section, you can: ♦ Discover the un its that are connected to the network . ♦ View the DS .11 units th at have bee n discover ed by their IP addre[...]

BreezeNET DS.11 Series User Manual 3-4 Control Window The following sections describe how to work with the Control Window. Selecting Units You can select a unit to manage in one of the following ways: ♦ Click the Network Autodiscove ry button. All the IP addresses of units in the same domain but not hidden behind a r outer (und er th e sel ect ed[...]

The DS.11 Configuration Utility 3-5 NOTE: In order to see the unit after assigning the IP address, the PC with the Con figur ation utility shoul d be on the same IP subnet as the assigned IP address. Units receive auto IP address if there is no DHCP server and the unit is configur ed to work in the Smart mode. The IP address will be chosen rand oml[...]

BreezeNET DS.11 Series User Manual 3-6 ♦ Location: A user-defined descripti on of the location of the selected unit, up to 28 ASCII characters long (optional). ♦ MAC Address: MAC addr e ss of the selected unit. ♦ Firmware: The current firmware ve rsion. ♦ BSS Address (RB-DS.11 units only): Defines the MAC address of th e BSS, which is the B[...]

The DS.11 Configuration Utility 3-7 DHCP ♦ Use DHCP: Sets the way your system utilizes the Dynamic Host Config u ration Protocol (DHC P, used for automatic IP assign ment).  Always: The system search es for a DHCP server each time the unit is turned on.  Smart: The system searches fo r a DHCP serve r only if no IP address was assigned. If a[...]

BreezeNET DS.11 Series User Manual 3-8  A VLAN Management Tag is inserted in all management frames generated by the unit before transmission to either the Ethernet or wireless link port. The t ag includes t he values of th e VLAN I D Man agem ent an d the VLAN Priority Man ageme nt parameters. Operation with Management VLAN disabled (VLAN ID Man[...]

The DS.11 Configuration Utility 3-9 Networking Parameters- CPE Table Tab (BU only) Figure 3-5: Networking Parameters Tab (BU) The CPE Table tab enables defining the VLAN functio nality for data frames for each of the RBs associated with the BU. The VL AN functionality of associated RBs that are not d efined in the C PE Table is defined by th e VLAN[...]

BreezeNET DS.11 Series User Manual 3-10 ♦ Filtering/Forwar ding packets received on the BU’s Ethernet port:  The unit accepts from the Ethe rnet port only data frames with a de stination on the Wireless port side (an associated RB).  If the destination RB is configured as Hybrid port (VLAN ID = 65535), b o th tagged and untagged data pack[...]

The DS.11 Configuration Utility 3-11 SNMP Parameters Tab The SNMP parameters tab allows you to de fine or edit the SNMP community strin gs and the SN MP-r elat ed paramet ers. Figure 3-6: SNMP Parameters Tab The SNMP Paramete rs tab is comp rised of the follo wing components: ♦ Read: The read-only community string of the unit. De fault is public.[...]

BreezeNET DS.11 Series User Manual 3-12 Counters Tab The Counters tab displays a series of statistics related to usage and performance. Figure 3-7: Counters Tab (BU Units) Using the Coun ters tabs, you can view a wide rang e of performance data at both sides of the link. For RB units, you can monitor the received signal strength through the RSSI (R[...]

The DS.11 Configuration Utility 3-13  Failed Count: This counter is increm ented when a packet is not transmitted successfully due to the nu mber of transmit attemp ts exceeding either the Short Retry Limit or Long Re try Limit. ♦ Rx Cou nters  Rx Fragments : The number of frames received, including dup licate data frames.  Multicast Rx [...]

BreezeNET DS.11 Series User Manual 3-14 WLAN Parameters Tab The WLAN parameters tab allows you to de fine or edit parame ters related to the Wireless LAN environment in which the selected unit is operating. The window display ed varies de pendi ng on th e type of unit s elect ed. Figure 3-8: WLAN Parameters Tab (BU Units) Figure 3-9: WLAN Parameter[...]

The DS.11 Configuration Utility 3-15 ♦ ESSID: An ASCII string of up to 32 charac ters used to identify a WLAN and prevents the unintentional merging of two overlapping WLANs. It is essential that the ESSID is set to the same valu e in all Remote Bridges and Base Units that are meant to communicate with each other. The ESSID field is case- sensiti[...]

BreezeNET DS.11 Series User Manual 3-16 Tabl e 3-1 describes the channels used in each regulatory domain, the default channel, the maximum outpu t power and the default output po wer. Regulatory Domain Lowest Channel Highest Channel Default Channel Max. Output Power (dBm) Default Output Power (dBm) ETSI 1 13 7 14 4 FCC 1 11 6 24 24 TELEC 1 13 7 14 [...]

The DS.11 Configuration Utility 3-17 Station Control Tab The Station Control tab enables you to reve rt the unit parameters to their factory defaults, re set the unit and export the unit ’s configuration to a configuration file. Figure 3-10: The Station Control Tab The St ati on C ont rol tab is co mprised of the following co mponents: ♦ Statio[...]

BreezeNET DS.11 Series User Manual 3-18 Security Tab The Security tab e nables you to define the encryptio n parameters. In the BU, an additional ACL (Ac cess Control List ) Table tab enables to define stations that are allowed to associate with the BU. Encryption Tab Figure 3-11: Encryption Tab This tab displays information regarding the unit’s [...]

The DS.11 Configuration Utility 3-19 If you select the Shared Key algorithm, set the following parameters: ♦ WEP: Enable access to the Default Key ID parameter and WEP keys tab le. The def ault is Disa ble. ♦ Default Key ID – Sets the key to be used for e ncryption/decryption. The default WEP ke y is the first key. ♦ WEP keys – Defines th[...]

BreezeNET DS.11 Series User Manual 3-20 ACL Table Tab (BU only) Figure 3-12: ACL Table Tab The Access Control List tabl e is used to authorize/deny access to certain stations. The list can contain up to 128 MAC addresses. ♦ To Add a MAC Ad dress to the list – Type t he MAC a ddress in t he Add/Delete MAC Address edit box. The format should be X[...]

The DS.11 Configuration Utility 3-21 Advanced Tab The Advanced tab pr ovides a dditional performanc e paramet ers. Figure 3-13: Advanced Tab The Advanced tab is comprised of the following compone nts: ♦ CW Min/Max: The siz e of the Cont ention Window. The conten tion window back-off algorithm is a me thod used to resolve contention between differ[...]

BreezeNET DS.11 Series User Manual 3-22 ♦ Basic Rate: The maximum rate of multicast, broadcast an d control frames transmissions. Multicast and broadcas t transmi ssions are not acknowl edged; therefore there is a chance that such transmissions will not be properly received without the possibility of us ing the acknowledgement mechanism for retra[...]

The DS.11 Configuration Utility 3-23 General Parameters Tab The General Pa rameters tab provides various bridging and association parameters. Figure 3-14: General Paramete rs Tab (BU) Figure 3-15: General Paramete rs Tab (RB) ♦ Ethernet Back Off: Dis abling the Ethern et back-off algorithm may im prove performance under certain conditions, such a[...]

BreezeNET DS.11 Series User Manual 3-24 ♦ Bridging Mode: Control the flow of pac kets that are sent to unkn own addresses.  Wireless: Select Reject Unknown to allow forwarding to the Etherne t port of frames received on the wireless port only if the destination address is known to the unit. All other frames will be dropped. Select Forward Unkn[...]

The DS.11 Configuration Utility 3-25 ♦ Preferred BU (RB only) Par ameters : When the Enforce optio n is enabled, the RB will associate only with the BU whose MAC a ddress is defined in the MAC Address edit box. The default fo r the Enforce option is D isable. The default Preferred BU MAC Address is 00-00-00-00-00- 00 (none). If the Preferred BU M[...]

BreezeNET DS.11 Series User Manual 3-26  Send Trap Inte rval (sec): The time interval between two successive traps when the number of transmitted broadcasts/m ulticasts exceeds the permitted thre shold. The range is from 0 to 65535 seco nds. 0 is for disabling trap s sending. The default is 300 seconds. Auto-Config Tab The Auto-Config tab ena bl[...]

The DS.11 Configuration Utility 3-27 ♦ Set Compatibility Mode: Click to set the following parameters, which are unique to DS.11 version 4.0, to values that will ensure interoperability with DS.11 units running previous versions as well as with other IEEE 802.11 compliant devices:  Basic rate=2Mbps  Short preambl e = Disable (BU)  Scrambl[...]

BreezeNET DS.11 Series User Manual 3-28 Firmware Upgrade Mode This mode enables the embedded software in managed units to be upgraded. When you select this mode from the Options m enu, the following window is displayed. Figure 3-18: Firmware Upgrade Mode di alog box NOTE: The Configuration utilit y does not resolve the topolog y of the cell. Theref[...]

The DS.11 Configuration Utility 3-29 At the end of the upgrade session, the follow ing window is display ed indicating that the operation was successful. Figure 3-19: Firmware Upgrade Process NOTES: Do not disconnect any cables or tr y to stop the process before downloading is completed. All configured parameters are saved dur ing the upgrade/downl[...]

BreezeNET DS.11 Series User Manual 3-30 ♦ Session Retries: Defines the number of times a TFTP session will be repeated befor e the firm ware upgra de op eration i s designated a failur e. The range is 1-5 retries with a de fault of 3 re tries. Multiple Unit Configuration Mode This feature enables configuration param ete rs to be do wnloaded to mu[...]

The DS.11 Configuration Utility 3-31 Resetting the SNMP Community Strings The SNMP Read/Write Community strings serve as an SNMP security feature to restrict management access to authorized persons only. To reset the SNMP community strings, insert a pape r clip or another suitable tool into the Reset butto n on the top panel of the unit and press t[...]

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Configuration Guidelines 4-1 Chapter 4 About This Chapter This section provides guidelines rega rdin g configuration of parameters that are important for ensuring op timal performance under vario us conditions.[...]

BreezeNET DS.11 Series User Manual 4-2 Configuring Critical Parameters One-Click Configuration To facilitate fast configuration and av oid mistakes, optimization of several operation modes can be ensured by conf iguring predefined values of several param eters using t he but ton in the Aut o-Config t ab. T hese mo des ar e: ♦ Point-to-Point links[...]

Configuration Guidelines 4-3 ♦ Setting the CW min to 15 will improve performance for links with uni-directional traffic patterns. ♦ CW min of 31 will minimize the PER for heavy bi-directional traffic loads. ♦ CW Min of 63 should be used for lo ng-range multi-point links with more than 3 RBs. RTS Threshold The default value for the minimum pac[...]

BreezeNET DS.11 Series User Manual 4-4[...]

System Troubleshooting 5-1 Chapter 5 About This Chapter The following troubleshooting guide provid es answers to some of the more common problems that may occur when installin g and using the BreezeNET DS.11. If problems not mentioned in this guide sh ould ari se, checki ng the Eth ernet and WLAN counters may help . If the prob lem persists, please[...]

BreezeNET DS.11 Series User Manual 5-2 Troubleshooting Guide Problem and Indication Possible Cause Corrective Action No power to unit. Power LED is off. Power cord is not properly connected. Verify power cord is prope rly connect ed to the Br eezeNET unit and to the power outlet. Failure to establish wireless link. WIRELESS LINK LED is off. 1. Powe[...]

Technical Specification s 6-1 Chapter 6 Supported Standards ♦ Compliant with ET S 300 328 and ETS 300 82 6 (CE marked). ♦ IEEE 802.11b HR standard for Wi reless LAN at 11 an d 5.5 Mbps. ♦ IEEE 802.11b standard for 1 and 2 Mbps. Configuration and Management Management and Setup SNMP based Configuration Utility Site Survey Tool Integrated into [...]

BreezeNET DS.11 Series User Manual 6-2 Radio Frequency Range 2.4 - 2.4835 GHz Radio Type Direct Sequence Sprea d Spectrum (DSSS) Wireless LAN Standards Compliant with IEEE 802.11b HR Selectable sub Chan ne ls FCC : 1-11 ETSI : 1-13 Japan TELEC : 1-13 France : 10-13 Output Power (at the antenna port) FCC: -4, -2, 4, 6 , 12, 14, 20 , 24 (dBm) ETSI -4[...]

Technical Specification s 6-3 Outdoor Unit-to-Indoor Unit Communication Cable Type Cat 5 FTP 4x2x24 Double Jacket Maximum Cable length 100 m (including the length of the Ethern et cable to the user equipment) Interfaces RF (antenna) connector in the outdoor unit (DS.11D models) N-Type jack, lightning protected Outdoor units: Shielded RJ-45 with spe[...]

BreezeNET DS.11 Series User Manual 6-4[...]

DS.11 FAQ A-1 Appendix A This appendix provides answers to the most commonly asked qu estions concerning the DS.11 s ystem. The appendix is divided into the following categories: ♦ General , page A-2. ♦ Collocation , page A-4. ♦ Firmware , pag e A-5. ♦ Configuration , page A-6. ♦ Accessories , pag e A-7. ♦ Management , page A-8.[...]

BreezeNET DS.11 Series Use Manual A-2 General Can the BU-DS.11/R B-DS.11D ind oor unit be placed outdoors? It is not recommended. The BU-DS.11/RB-DS.11 indoor units are specified to opera te b etwee n 0 ° C and 40 ° C and i s not weather protected . Therefor e, if it is necessary to install it outdoors, it shou ld be placed in a protective cabine[...]

DS.11 FAQ A-3 What is the normal PE R (Packet Error Rate) f or the BU-DS.11/RB-DS .11? The error rate will be about 4%-6% (transmitted fragments vs. retry count). This is typica l wh en oper ating in a non-i nter fer ence en vironmen t at m aximum rang e for bi- directional traffic loads. If the traffic load is more uni-directional, then the PER wi[...]

BreezeNET DS.11 Series Use Manual A-4 Collocation and Interference How many BU-DS. 11 or RB-DS.11 unit s can be collocate d on the s ame building or tower? Up to 3 BU-DS.11 or RB-DS. 11 unit s can be collocate on the same structur e . Each unit is assigned to one of three non-overlapping channe l (e.g. channels 1, 6, and 11 in FCC compliant install[...]

DS.11 FAQ A-5 Firmware Can the BU-DS.11 /RB-DS.11 firmware be upgraded? The firmware in the B U-DS.11/RB-DS.11 is stored in flash and can be upgraded using the built in Configuration Utility or the TFTP server. Can the BU -DS.11/RB-DS.11 flash be erased or th e firmware changed by an unauthorized person ? The flash is protected against unauthorized[...]

BreezeNET DS.11 Series Use Manual A-6 Configuration Can the re gulatory do main (country) of a DS.11 unit be changed? The regulatory domain is factory set and cannot be changed. How can the DS.11 be co nfigured or managed if the SNMP Community name has been forgotten? Press the reset button on the top panel with a paper clip. This will set the read[...]

DS.11 FAQ A-7 Accessories Can I use the s ame accessories on my B reezeNET DS.11 as o n my BreezeNET PRO.11? Not all BreezeNET PRO.11 accessories ar e co mpatible with th e DS.11. For example, the TPA (T ransmit Power Amplifier), LNA (Low Noise Receive Amplifier) and AMP 250/500 (Bi-Dir e ctional Amplif ier), which are all compatibl e with the Bree[...]

BreezeNET DS.11 Series Use Manual A-8 Management What managemen t options are available for the DS.11? The BU-DS.11/RB-DS.11D comes w ith a graphical Configuration Utility that operates on any Windows based net work ready PC. With this utility you can configure and monit or every DS.11 on your network. Yo u can also use th e DS.11 SNMP MIB on stand[...]

Preparing the Indoor to Outdoor C able B-1 Appendix B The following figure shows the wire pair connections r e quired for the indoor-to- outdoor cable. 12345678 1 + 2 4 + 5 7 + 8 3 + 6 Ethernet Conne ctor Pin Assignme nts The color codes used in cables s u pplied by Alvarion ar e : Wire color Pin Blue 1 Blue/white 2 Orange 3 Orange/white 6 Brown 4 [...]

BreezeNET DS.11 Series User Manual B-2[...]

Radio Signal Propagation C-1 Appendix C This section explains and sim p lifies many of the terms relating to antennas and RF (Radio Frequency) systems. The following diagram depicts a typi cal radio system: Figure C-1: A Typical R adio System A radio system transmits information to the transmitter. The information is transmitted through an antenna [...]

BreezeNET DS.11 Series User Manual C-2 P dBm = 10 x Log P mw For exampl e: 1 Watt = 1000 mW; P dBm = 10 x Log 1000 = 30 dBm 100 mW; P dBm = 10 x Log 100 = 20 dBm For link budget calculations, the dBm convention is more convenient than the Watts convention. Attenuation Attenuation (fading) of an RF signal is defined as follo ws: Figure C-2: Attenuat[...]

Radio Signal Propagation C-3 Antenna Characteristics Isotropic Antenna A hypothetical antenna having equal radiatio n intensity in all directions. Used as a zero dB gain reference in directivity calculation (gain). Antenna Gain A measure of directivity. It is defined as the ratio of the radiation intensity in a given direction to the radiation inte[...]

BreezeNET DS.11 Series User Manual C-4 Directional Antenna Radiates and receives most of the signal pow e r in one direction. The following diagram shows the radiation pattern of a directional antenna with its side lobes in polar form: Figure C-5: Radiatio n Pattern of Directi onal Antenna Antenna Beamwidth The directiveness of a directional antenn[...]

Radio Signal Propagation C-5 Link Parameters Frequency: 2.4 GHz P out = 4 dBm (2.5 mW) Tx and Rx cable l ength (Ct and Cr) = 10 m. cable ty pe RG214 (0. 6 dB/meter) Tx and Rx antenna gain (Gt and Gr) = 18 dBi Distance between sites = 3 Km Receiver sensitivity (Ps) = -84 dBm Link Budget Calculation EIRP = P out - Ct + Gt = 16 dBm Pl = 32.4 + 20xLog([...]

BreezeNET DS.11 Series User Manual C-6 ♦ Distance ♦ Weather conditi ons (rain, wind, etc.) At high rain intensity (150 mm/hr), the fad ing of an RF signal at 2.4 GHz may reach a maximum of 0.02 dB/Km. Wind may cause fading due to antenna motion. ♦ Interference Inter fer ence may b e caused by a noth e r sys tem on the s ame frequ ency rang e,[...]

Radio Signal Propagation C-7 Figure C-8: Fresnel Zone Clear of Obstacles When at least 8 0% of the first Fresne l Zone is clear of obstacles, propagation loss is equivalent to that of free space.[...]

BreezeNET DS.11 Series User Manual C-8[...]