Proxim Tsunami MP.11 User's Manual
Contents
1. ne mememe nennen nenne nnne nnne neas nente trennen nenne 8 die e 9 IndooriEink Installatio N urina a aw et dud t tu ae Gea tue dae e dae ata da dae aed da eas tas AS ndun dd Oa 9 Tsunami MP 11a Model 5054 Hardware ssssssssss nnn nennen nnnnnnnn nnn nnns nnns nnns 9 Model 5054 Cable Setup for an Outdoor Antenna sess 10 Model 2454 R and Model 5054 R HardWare 11 Models 2454 R and 5054 R Cable Setup for the Outdoor Antenna iii 11 Outdoor Hardware Placement esses eene nennen nene ne nnne ne ne ene eden enne nene en nnns 12 Gres ci ER 13 Surge Arrestor Placement i 13 Antenna Cable Route naaa aa a aa aaea a enisi ses nsi ese ese ese ses asas assesses 13 Outdoor Link Installation eee eee 14 Placing the Antenna iaia 14 Mounting the ANtenna iii 17 Connecting the Antenna Cable i 18 Sealing the Cable Connectors esses eene enne nnne nnns nennen nennen nnns 18 Grounding the Antenna ii 19 Aligning the ANTENNA iii 19 Before Climbing the ROGf ii eR Pra HERE PR E RKE Xa ARES PAAR TRE AT ENRE TNR TRES AKRE 22 CHAPTER 2 DETERMINING RANGE AND CLEARANCE 1 111000 eresie 23 Determining the Outdoor Range ii 23 MAXIMUM Ran2. WHO SHOULD USE THIS GUIDE The installation of outdoor wireless links requires technical expertise At the very least you should be able to e Install and configure the network components such as the radio hardware e Understand or have a working knowledge of installation procedures for network operating systems using Microsoft Windows e Mount the outdoor antenna and surge arrestor Antenna installation must be provided by professional installers WARNING The outdoor antennas to be used with these products are intended for mounting on an antenna tower on a roof or on the side of a building Installation is not to be attempted by someone not trained or experienced in this type of work The antenna must be installed by a suitably trained professional installation technician or by a qualified antenna installation service The site prerequisites must be checked by a person familiar with the national electrical code and with other regulations governing this type of installation As radio regulations differ between the various worldwide countries it may be that not all of the outdoor solutions described in this manual are allowed in the country in which you plan to install this equipment Local radio regulations or legislation may impose restrictions on the use of specific combinations of e Low loss antenna cables and outdoor antennas e Radio channels selected at the radios that are connected to specific outdoor antennas Note
3. Copyright 2006 Proxim Wireless Corporation All rights reserved 7 Tsunami MP 11 Antenna Installation Chapter 1 Preparing for Installation Plan the day for your outdoor antenna installation carefully Do not install the antenna in wet or windy conditions during a thunderstorm or when the area in which the equipment is to be installed is covered with ice or snow The grounding system for the antenna mast radio hardware and surge arrestor should be installed before the cable from the antenna is connected to the surge arrestor This protects your system against lightning strikes during installation Familiarize yourself with the antenna and the antenna specific mounting instructions prior to climbing any roof or ladder By installing and testing all equipment before beginning the actual rooftop installation you can determine whether all required equipment and items are available and functioning properly To verify the equipment prior to installation you may first need to follow the guidelines as described in the documentation that comes with the radio unit INSTALLATION PROCESS OVERVIEW The installation process can be summarized in the following steps 1 O LO I a Copyright 2006 Proxim Wireless Corporation All rights reserved Verify that the support structure for the antenna has been connected to the grounding system If this is not the case you should do so now Connect the exposed metal connectors of the low lo
4. A basic rule for selecting a combination of cables and antennas is that no combination is allowed unless explicitly approved in this Antenna Installation Guide Therefore always use Tsunami MP 11 Recommended Antennas in combination with Chapter 2 Determining Range and Clearance to select the correct type of antenna equipment and to inform your antenna installer and LAN administrator about the impact of regulatory constraints on their job or activities CAUTION At all times it is the customer s responsibility to ensure that an outdoor antenna installation complies with local radio regulations The customer must verify that The antenna installer is aware of these regulations The correct cable type and surge arrestor have been used according to the instructions described in this document Proxim Wireless Corporation and its resellers or distributors are not liable for any damage or violation of government regulations that may arise from failing to comply with these guidelines In case you are not certain about the regulations that apply in your country consult your local Proxim Wireless Corporation Sales Office Copyright 2006 Proxim Wireless Corporation All rights reserved 4 Tsunami MP 11 Antenna Installation FINDING ADDITIONAL INFORMATION Installing Hardware Antennas typically are used in combination with Tsunami MP 11 systems The hardware installation of these devices is described in the Installation and Mana
5. Wireless Corporation All rights reserved 14 Tsunami MP 11 Antenna Installation The definition of the 1 Fresnel zone is an imaginary boundary line offset along the direct signal path This boundary is defined as the point where if a signal were reflected between the two antennas it would travel a distance exactly one half wavelength longer than the direct path signal Each succeeding Fresnel zone boundary adds an additional half wavelength to the reflected path distance between the antennas Signals reflected from any even numbered Fresnel zone result in signal cancellation those from odd numbered Fresnel zones add to the direct path signal The exact shape and width of the Fresnel Zone is determined by the path length and frequency of the radio signal The width as distance from the direct antenna beam is approximately 6 m 21 ft in the middle of the wireless link for a distance of 6 5 Km 4 mi and a frequency of 5 8 GHz This width also is the required clearance of the antenna beam from obstacles in its path to avoid loss of radio signal When any significant part of this zone is obstructed a portion of the radio energy is lost resulting in reduced performance Reduced performance also can occur when obstacles close to the antenna beam cause signal reflections or noise that interfere with the radio signal The following figure shows some typical examples of obstacles you must avoid for the directional antenna to operate effectively
6. a Neighboring buildings b Trees or other obstructions c Power lines For optimal performance you must ensure that the type and placement of the antennas leave sufficient clearance of the Fresnel Zone at the maximum width of the bulge which is typically at the mid point between the antennas Figure 2 Potential Obstacles for a Directional Antenna Copyright 2006 Proxim Wireless Corporation All rights reserved 15 Tsunami MP 11 Antenna Installation To minimize the influence of obstacles signal interference or reflections note the following guidelines e Mount the antenna as high as possible above the ground to allow maximum clearance lo In open areas ground is the actual surface of the earth 9 n dense urban areas ground is to be interpreted as the height of the highest obstacle in the signal path between the two antenna sites e Avoid trees in the signal path to avoid signal absorption due to seasonal changes leaves or ice e Install the antenna at least 2 m 6 ft away from all other antennas Other situations in which reflections of the radio signal may cause interference are environments in which large reflecting surfaces exist in parallel or partly perpendicular to the antenna beam Environments with large reflective surfaces include e Mirror glass buildings e Crowded parking lots e Water surface or moist earth and moist vegetation e Above ground power and telephone lines Note The use of reflect
7. in diameter Copyright 2006 Proxim Wireless Corporation All rights reserved 13 Tsunami MP 11 Antenna Installation CAUTION e The cable must be secured along the complete distance between attachment points No part of the antenna cable should be allowed to hang free This is particularly important for outdoor cable parts e The antenna cable and cable connectors are not designed to withstand excessive force IO Do not use the connectors as cable grips to pull cable through raceways or conduits Do not use the cable connector to support the weight of the cable during or after installation Do not use any tool to tighten the connectors IO 10 e Always seal the connectors using weatherproofing tape e Avoid any water or moisture entering the cable as that impacts the performance of the wireless link e Prior to sealing the outdoor connectors and permanently securing the cable to the wall with cable ties and wall hooks verify whether the installation and all components functions properly OUTDOOR LINK INSTALLATION The outdoor installation of the link point to point or point to multipoint requires the following e Anantenna or unit with an integrated antenna e A low loss antenna cable available in four lengths not for unit with integrated antenna e Antenna mast or wall bracket for the antenna unit e Agrounding system that meets the requirements described in Grounding the Antenna on page 19 e Water
8. multipath Sector antenna 17 dBi 60 at Base Station with 20 feet LMR 600 cable Three foot parabolic dish 31 4 dBi at Subscriber Unit with 20 foot LMR 600 cable With a fade margin minimum of 10 dB to 2 miles and 0 2 dB additional fade margin for every 0 1 miles to 15 dB availability is greater than 99 99 Expectations 5 25 5 35 GHz 0 9 miles at peak performance 36 Mbps mode Up to 2 8 miles maximum 6 Mbps mode 5 47 5 725 GHz 5 725 5 850 MHz 0 85 miles at peak performance 36 Mbps mode Up to 2 65 miles maximum 6 Mbps mode 4 0 miles at peak performance 36 Mbps mode Up to 11 2 miles maximum 6 Mbps mode Copyright 2006 Proxim Wireless Corporation All rights reserved 26 Model 5054 R Assumptions Point to multipoint configuration using USA regulations for L and U bands ETSI regulations for M bands Tsunami MP 11 Antenna Installation Clear line of sight with no unusual multipath Sector antenna 17 dBi 60 at Base Station with short 6 ft LMR 600 1 dB loss jumper cable Standard integrated antenna for Subscriber Unit With a fade margin minimum of 10 dB to 2 miles and 0 2 dB additional fade margin for every 0 1 miles to 15 dB availability is greater than 99 99 Expectations 5 25 5 35 GHz 0 5 miles at peak performance 36 Mbps mode Up to 1 7 miles maximum 6 Mbps mode 5 47 5 725 GHz 0 4 miles at peak performance 86 Mbps mode Up t
9. outdoor antennas Note A basic rule for selecting a combination of cables and antennas is that no combination is allowed unless explicitly approved in this manual Therefore always use this chapter in combination with Chapter 2 Determining Range and Clearance on page 19 of this document to select the right type of antenna equipment and to inform your antenna installer and LAN administrator about the impact of regulatory constraints on their job or activities CABLE COMPONENTS To comply with local radio regulations the BSUs and SUs have a selectable radio power output level It can be selected through the TPC Transmit Power Control parameter in the user Interface See the product s Installation and Management manual for more information The low loss antenna cable recommended is an LMR 600 2 meters 6 feet You can order this accessory from Proxim Wireless Corporation When you order the antenna equipment make sure that you order cables that comply with the regulations that apply in your country In case of doubt consult the Proxim Wireless Corporation Sales office for more information To connect your radio hardware to an outdoor antenna installation you will need the following cabling components e Surge arrestor e Low loss antenna cables e One of the outdoor antennas described in Tsunami MP 11 Recommended 5 Gz and 2 4 GHz Antennas When purchasing new MP 11 products each of these components will be equipped with standar
10. suitably trained professional installation technician must install the antenna The site prerequisites must be checked by a person familiar with the National Electrical Code and with other regulations governing this type of installation Outdoor antennas and antenna cables are electrical conductors Transients or electrostatic discharges that may occur at the antenna such as a lightning strike during thunderstorms may damage your electronic equipment and cause personal injury or death to persons touching the exposed metal connectors of the antenna cable When installing disconnecting or replacing one of the cabling components you must ensure at all times that each exposed metal connectors of the antenna cabling system are grounded locally during the work Do not install this antenna where there is any possibility of contact with high voltage arc over from power cables or service drops to buildings The antenna supporting mast or tower must not be close to any power lines during installation or removal or in the event part of the system should accidentally fail Apply a Danger label to a plainly visible area of the antenna support structure Do not climb rooftops in wet or windy conditions during a thunderstorm or when the area at which the equipment is to be installed is covered with ice or snow Do not touch antennas surge arrestors or antenna cables during a thunderstorm The antenna installation location must be at a safe distance fr
11. the reverse order Tsunami MP 11 Antenna Installation SITE PREREQUISITES Review all requirements outlined in this chapter before starting the installation procedure Prior to climbing on the roof or any other area where you intend to install the outdoor antenna you are advised to Verify that you have arranged all safety measures for outdoor installation or rooftop installation Verify that you have all equipment and tools required to install the outdoor antennas and 5054 R unit Install and verify proper operation of the equipment INDOOR LINK INSTALLATION The following items are required on each end of the wireless link For 5054 MP 1 1a units a Base Station or a Base Station and Subscriber Unit A low loss antenna cable to connect the indoor installation to the surge arrestor optional A surge arrestor to protect your sensitive equipment from static discharge and transients A low loss antenna cable to connect the surge arrestor to the outdoor antenna if surge arrestor in antenna cable is used Female female converter connector optional for 5054 only Outdoor antennas one at each end A grounding system as described in Grounding System on page 19 Tsunami MP 11a Model 5054 Hardware The following three types of hardware devices are used for setting up a wireless link with the 5054 Tsunami MP 11 5054 Base Station Unit BSU Tsunami MP 11 5054 Subscriber Unit SU Tsunami MP 11 5054 Residential Subscriber Unit R
12. theoretical maximum that could be achieved under optimal circumstances using the available Tsunami MP 11 products according to their specifications and in compliance with local radio regulations Clearance Factor Identifies a correction value in percentage that should be used in case the signal path of your wireless link does not provide the minimum clearance as listed in the Maximum Range table See Clearance Factor on page 24 Note You also can use a calculation sheet provided by Proxim to generate an estimate of link distance and reliability Copyright 2006 Proxim Wireless Corporation All rights reserved Tsunami MP 11 Antenna Installation Maximum Range The maximum range of your system is based upon e The type of outdoor antenna equipment e The data speed of the wireless link e The clearance of the signal path see Clearance Factor below The values in this section are based upon calculations that assume optimal radio conditions They do not represent a guarantee that the same maximum distance can be achieved at your location Differences in performance figures can result from e Incorrect alignment of antennas see Aligning the Antenna on page 19 e Polarization mismatch of the antennas e Sources of interference or unexpected reflections in the signal path that affect the communications quality see Antenna Placement on page 14 e Severe weather conditions such as heavy rain or snow fall or str
13. types of hardware devices are used for setting up a wireless link e Base Station Unit BSU e Subscriber Unit SU There are two models of the 5054 R and 2454 R Subscriber Unit one with an integrated antenna another similar in appearance to the Base Station Unit also with an external antenna connection as shown in the following illustration pl SU with Integrated Antenna BSU SU with External Antenna Connection Models 2454 R and 5054 R Cable Setup for the Outdoor Antenna The following is an overview of the cable setup for the outdoor antenna If the radio is mounted close to the surge arrestor it can be connected directly to the surge arrestor Ethernet cable CONNECTSTO Surge Arrestor CONNECTS TO Ethernet Cable at ingress point CONNECTS TO 5054 R 2454 R external connector Copyright 2006 Proxim Wireless Corporation All rights reserved 11 Tsunami MP 11 Antenna Installation The electronics power supply and radio are designed for indoor mounting and operation The ideal location must satisfy the following requirements The location provides a connection to a grounding type AC wall outlet 100 240 VAC using the standard power cord supplied with the unit Alternative power can be provided through Power over Ethernet The ground of the AC wall outlet must be connected to the same grounding system as the surge arrestor and antenna mast see Grounding System on page 19 The location must allow for easy discon
14. unit is described in the nstallation and Management manual as well as the Quick Install Guide which come on the product CD Surge Arrestor Placement The surge arrestor is an indispensable part of your outdoor antenna installation It protects your sensitive electronic equipment from transients or electro static discharges at the antenna For optimal protection the surge arrestor must be installed at a location that satisfies the following requirements A location e As close to the location at which the Ethernet cable will enter the building e That allows for easy disconnection of the surge arrestor from the cable connected to the unit Antenna Cable Route The antenna cable must be connected from the antenna through the surge arrestor to the antenna connector of the unit To plan the route of the antenna cable for an indoor unit 5054 consider the following e Does the cable route require drilling through a wall or ceiling e Do you have a building plan of the desired location showing other cabling routes such as electricity telephone or networking e Does the type of building materials require special drilling tools The cable should not be installed into tight positions as bending or applying excessive force to the connectors can damage the antenna cable Always allow the cable to bend naturally around corners The recommended bend radius is at least 100 mm 4 in or more for the low loss cable of 10 mm 0 4 in and 15 mm 0 6
15. you will be using The total is the EIRP equivalent isotropically radiated power Determine your link budget from the Distance and Path Losstable For example if the distance between the two radios is approximately 5 km the link budget would be 121 Note that this is the value for 4 8 km which is closest to the actual value Add the gain of the antenna on the second side of the link Subtract the total loss of all transmission elements between the antenna and the radio on the second side of the link The result is the Received Signal Level RSL From the Receiver Sensitivity tables in the Tsunami MP 1 1 Installation and Management manual Technical Specifications find the dBm value for the data rate used for the link Subtract this value from the Received Signal Level this is the Fade Margin Copyright 2006 Proxim Wireless Corporation All rights reserved 29 Tsunami MP 11 Antenna Installation Notes e The RSL must be higher than the Receiver Sensitivity plus the fade margin for a good link See Table 1 to have a working link with no excessive errors The amount of Fade Margin indicates the reliability of the link the more Fade Margin the more reliable the link e The path loss must be smaller than the link budget minus the minimum required fade margin The maximum ranges cause the path loss plus the fade margin to be the same as the link budget The results of this link budget calculation are very important for det
16. Bm Li is the total loss of all transmission elements between the antenna and the RF Unit on one side of the link in dB Gi is the gain of the antenna on one side of the link in dB Go is the gain of the antenna on the opposite side of the link in dB Lo is the total loss of all transmission elements between the antenna and the RF Unit on the opposite side of the link in dB Lp is the Path loss defined by Lp dB 96 6 20 logioF 20 log1oD where F is the Frequency of the radio system in GHz 5 8 or 2 4 GHz D is the Distance of the path in miles Note This formula is available on a calculation sheet provided by Proxim to generate an estimate of link distance and reliability See the following figure for a visual representation of the elements of this equation Copyright 2006 Proxim Wireless Corporation All rights reserved 28 Tsunami MP 11 Antenna Installation Transmit Radio Transmission line Surge Arrestor Transmission line Antenna G2 Antenna 3 Transmission line ti o Surge Arrestor ce Transmission line gt Receive Radio Procedure 1 Start with the transmit power and the number of the channel to be used From the output power tables on page 30 find the dBm associated with this output power and channel Subtract the total loss of all transmission elements between the antenna and the radio on one side of the link dB Add the dBi of the antenna
17. Display Feature Antenna alignment is a process to physically align the antennas of both units to have the best possible radio link established between them The antenna alignment process usually is performed during installation and after major repairs The 2454 R and 5054 R have an audible antenna alignment tool that can be activated by plugging in the supplied serial dongle supplied with every Base Station or by issuing the CLI command for antenna alignment The CLI command causes both audible and numerical feedback as the CLI shows the running SNR values twice a second The model 5054 has the SNR value output on the CLI but not the audible output see Antenna Alignment Commands on page 21 The output from the beeper for antenna alignment consists of short beeps with a variable interval The interval changes with the SNR level to assist in correctly aligning the antenna An increase in signal level is indicated by a shorter interval between beeps a reduction in signal level results in beeps further apart To allow for precise antenna alignment small changes in SNR result in large changes in the beep period The alignment process averages the SNR which is represented by an average length beep When a higher SNR is received the beep period is made shorter dependent upon the difference to the average A lower SNR results in a longer period between beeps The first five steps are represented by a large change and all following steps are a smal
18. Part Number 73082 1 Tsunami MP 11 Antenna Installation Guide Version 2 5 pro im WIRELESS Tsunami MP 11 Antenna Installation Copyright 2003 2004 2005 Proxim Wireless Corporation San Jose CA All rights reserved Covered by one or more of the following U S patents 5 231 634 5 875 179 6 006 090 5 809 060 6 075 812 5 077 753 This manual and the software described herein are copyrighted with all rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form by any means without the written permission of Proxim Wireless Corporation Trademarks Tsunami Proxim and the Proxim logo are trademarks of Proxim Wireless Corporation All other trademarks mentioned herein are the property of their respective owners Copyright 2006 Proxim Wireless Corporation All rights reserved Tsunami MP 11 Antenna Installation Contents ABOUT THIS BOOK Cm E M 4 Who Should Use This GUIdEe ereenn 4 Finding Additional InformaltlOn 3 rir rrt ngi alal ea 5 About the Tsunami MP 11 Product FamilY i 6 TIPICA MT 7 CHAPTER 1 PREPARING FOR INSTALLATION eren nnne nnn nnnm rna annnm ria aa aa aa aaa aas soar aaa 8 Installation Process OvervieW
19. RESTOR Lightning protection is used to maximize the reliability of communications equipment by safely re directing current from a lightning strike or a power surge traveling along the Cat 5 Ethernet cabling to ground using the shortest path possible Designing a proper grounding system prior to installing any communications equipment is critical to minimize the possibility of equipment damage void warranties and cause serious injury The surge arrestor sometimes referred to as a lightning protector can protect your sensitive electronic equipment from high voltage surges caused by discharges and transients at the antenna Proxim Wireless offers provides superior lightning and surge protection for Tsunami MP 11 and Tsunami QuickBridge 11 products See the following sections for more information Mechanical Layout CAUTION To avoid damage to electronic equipment and your radio equipment always apply the surge arrestor between the outdoor antenna installation and the radio hardware or other computing device that is connected to the outdoor antennas Copyright 2006 Proxim Wireless Corporation All rights reserved 34 Tsunami MP 11 Antenna Installation Specifications 5054 SURGE Frequency range DC 5 875 GHz VSWR 1 25 1 Max DC 4 GHz 1 45 1 Max 4 5 875 GHz 0 5 dB Min DC 5 875 GHz Clamping voltage PoE Data 58 volts Connectors 2 modular RJ45 N Female jacks 2 removable termina
20. SU For these indoor radios the antenna cable is connected to the connector pigtail extending from the radio Copyright 2006 Proxim Wireless Corporation All rights reserved Tsunami MP 11 Antenna Installation Model 5054 Cable Setup for an Outdoor Antenna The following figure shows an overview of the cable setup for the outdoor antenna When the 5054 is not mounted close to where the antenna cable enters the building where the surge arrestor must be mounted an additional cable between the 5054 and the surge arrestor is required plus a female female converter connector If the 5054 is mounted close to the surge arrestor the 5054 can be connected directly to the surge arrestor low loss antenna cable from antenna connect to surge arrestor low loss cable to outdoor router mo e um connect to N type male connector pigtail extending from 5054 unit Figure 1 Cable Setup for 5054 Antenna Installation Note The exception to the rule is the indoor 5054 RSU when the window antenna is installed in an indoor location This installation does not require the use of a surge arrestor The antenna can be connected directly to the 5054 CAUTION The 5054 hardware the surge arrestor and the antenna mast must be connected to the same grounding system Copyright 2006 Proxim Wireless Corporation All rights reserved Tsunami MP 11 Antenna Installation Model 2454 R and Model 5054 R Hardware The following
21. ance Fresnel dB m m km Zone m 61 4 8 151 4 8 8 0 62 5 4 170 E 5 4 8 5 63 6 0 190 6 0 9 0 64 6 8 214 6 8 9 5 65 7 6 240 7 6 10 1 66 8 5 269 8 5 10 7 67 9 5 5 302 9 5 11 3 68 11 i 339 r 10 7 12 0 69 12 380 12 0 12 7 70 13 426 13 5 13 4 71 15 478 15 1 14 2 72 17 537 17 0 15 1 73 19 602 19 0 16 0 74 21 676 21 4 16 9 75 24 i 758 24 0 17 9 76 27 850 f 26 9 19 0 77 30 i 954 i 30 2 20 1 78 34 1071 33 9 21 3 79 38 1201 38 0 22 6 80 43 1348 42 6 23 9 81 48 1512 47 8 25 3 82 54 1697 i 53 7 26 8 83 60 1904 60 2 28 4 84 68 3 2136 i 67 6 30 1 85 76 2397 75 8 31 9 86 85 2689 i 85 0 33 7 87 95 3018 f 95 4 35 7 88 3386 107 1 37 9 89 3799 120 1 40 1 90 i 4263 134 8 42 5 The distance is based upon the assumption that 60 of the 1st Fresnel is clear Copyright 2006 Proxim Wireless Corporation All rights reserved Tsunami MP 11 Antenna Installation Chapter 3 Antenna Cabling System INTRODUCTION As radio regulations differ between the various countries worldwide not all of the outdoor solutions described in this manual may be allowed in the country where you plan to install this equipment Local radio regulations or legislation may impose restrictions on the use of specific combinations of e Low loss antenna cables and outdoor antennas e Radio channels selected at the units that are connected to specific
22. antennas when e You plan to mount multiple directional antennas to the same mast e Your wireless link receives interference from a vertically polarized neighboring installation Note For optimal wireless link performance you must always verify that the antenna polarization on both ends of the wireless link is the same Copyright 2006 Proxim Wireless Corporation All rights reserved 21 Tsunami MP 11 Antenna Installation Antenna Cable Routing The antenna cable must be routed and fixed in such a way that installation technicians have a clear passage area All connectors that are located outdoors must have a weatherproof seal You are advised to seal connectors only after you have completed the final radio test BEFORE CLIMBING THE ROOF Before you start the installation check whether you have all the required components to set up an outdoor wireless link For each side of a wireless outdoor wireless link you need One or two low loss antenna cables or a unit with an integrated antenna A female female converter N connector in case you want to use two antenna cables Tools and material to mount the antenna Tape or wraps to attach the antenna cable for example to the mast Ethernet cable with waterproof cap for 5054 R Grounding material such as cable and Faston connector for 5054 or ground lug plus screw for 5054 R If an item is missing or damaged during shipment inform your supplier Copyright 2006 Proxim Wi
23. ctrostatic discharges that may occur at the antenna for example a lightning strike during thunderstorms may damage your electronic equipment and cause personal injury or death to persons touching the exposed metal connectors of the antenna cable To avoid damage and personal injury the entire antenna cabling system must be grounded at all times When installing disconnecting or replacing one of the cabling components you must ensure at all times that each exposed metal connectors of the antenna cabling system will be grounded locally during the work When mounting or replacing the surge arrestor 1 First connect each of the connectors of the low loss antenna cables to the grounding system 2 Next connect the cable connector to the grounding system 3 Finally connect the surge arrestor to the grounding system Before you proceed verify that each of the items is properly grounded and that the ground will not be interrupted when disconnecting one of the antenna system components Copyright 2006 Proxim Wireless Corporation All rights reserved 33 Tsunami MP 11 Antenna Installation Check with a qualified electrician if you are in doubt as to whether the surge arrestor and cable connectors are properly grounded Only after you have verified that each of the items is properly grounded replace the surge arrestor and disconnect the cables from the grounding system in exactly the reverse order of the previous steps USING A SURGE AR
24. d N type connectors When ordering separate components for example as a spare part or replacement to previously purchased outdoor antenna equipment carefully read the note on the following page to ensure that you order components with an N type connector that matches the other parts of your outdoor antenna cabling system Copyright 2006 Proxim Wireless Corporation All rights reserved 32 Tsunami MP 11 Antenna Installation SELECTING THE CORRECT CONNECTOR TYPE The following are differences between the Tsunami MP 11 Model 5054 and Model 5054 R e Male versus Female N type connector e Indoor install and long coax versus Outdoor install and short coax e Low loss antenna coax versus outdoor rated Ethernet cable and surge arrestor All cabling components of the outdoor antenna system come with standard N type connectors as depicted in the following table Table 3 Standard N Type Connector Diagram a rim SP cm m n 0 A B C D Cabling Component Standard N Cabling Systems A TMP 5054 R 5054 5054 shown Standard N female male B Surge arrestor Standard N female on both ends C Low loss cable Standard N male on both ends D Outdoor antenna Standard N female Note that the gender of the connector is not determined by the connector s thread but by its center pin a solid center pin male a hollow pin female DANGER Outdoor antennas and antenna cables are electrical conductors Transients or ele
25. distance between the antennas a e The clearance required for optimal performance b where clearance should be interpreted as 9 Vertical clearance above the ground and the highest buildings or objects in the signal path 9 Horizontal clearance from neighboring buildings and objects in the signal path For optimal range and throughput performance you must ensure that your antenna installation provides maximum clearance in both horizontal and vertical direction Clearance should be interpreted as follows e n open areas without obstacles in the signal path clearance is measured as height above the surface of the earth For example if the antenna is mounted on the roof this height includes the height of the building plus the height of the mast above the rooftop e In areas with obstacles in the signal path between the two antennas clearance should be measured as height above the highest obstacle in the signal path e n dense urban areas the clearance should be measured as height above the highest rooftop or any other obstacles in the signal path between the two antennas For situations in which local authorities the proprietor of the premises or other factors do not let you set up an antenna mast that lets you meet the listed clearance requirements you may be unable to achieve a full line of sight clearance At the same time however when the distance that your wireless outdoor installation must cover is less than the listed maximum
26. e build up of static electricity WARNING The antenna mast radio hardware and surge arrestor must be connected to the same ground using an equi potential bonding conductor A good electrical connection should be made to one or more ground rods using at least a 10AWG ground wire and non corrosive hardware The grounding system must comply with the National Electrical Code and safety standards that apply in your country Always check with a qualified electrician if you are in doubt whether your radio hardware installation is properly grounded Aligning the Antenna For optimal performance of your wireless link make sure the antennas are properly aligned facing one another eye to eye Antenna alignment is a process to physically align the antennas of both units to have the best possible radio link established between them The antenna alignment process usually is performed during installation and after major repairs To align the antennas e Use a pair of binoculars or a map of the area and a compass to point the antennas to one another e Use the Antenna Alignment Display feature AAD to display a measurement of signal quality at the CLI and serial ports e You also can use the Link Test option of the management tools that come with the MP 11a and the 5054 R to analyze the radio link quality Copyright 2006 Proxim Wireless Corporation All rights reserved 19 Tsunami MP 11 Antenna Installation Antenna Alignment
27. ended and does not cover products which have been modified without the seller s approval or which have been subjected to unusual physical or electrical demands or damaged in any way This Warranty constitutes the sole and exclusive remedy of any buyer or seller s equipment and the sole and exclusive liability of Proxim Wireless Corporation in connection with the products and is in lieu of all other warranties express implied or statutory including but not limited to any implied warranty of merchantability of fitness for a particular use and all other obligations or liabilities of Proxim Wireless Corporation In no event will Proxim Wireless Corporation or any other party or person be liable to you or anyone else for any damages including lost profits lost savings or other incidental or consequential damages or inability to use the software provided on the software media even if Proxim Wireless Corporation or the other party person has been advised of the possibility of such damages Copyright 2006 Proxim Wireless Corporation All rights reserved 37 Tsunami MP 11 Antenna Installation TO BE FILLED OUT BY USER Product Description COMCODE Product ID Serial Number Invoice Date mm dd yyyy Name Title Company Address City State Zip Code Country Telephone Fax TO BE FILLED OUT BY THE DEALER OR DISTRIBUTOR Dealer Name City State Zip Code Country Te
28. ermining any potential problems during installation If you have calculated the expected RSL you can verify that it has been achieved during installation and troubleshooting if necessary In the USA and Canada this model radio can be installed with any gain directional antennas as there is no Effective Isotropic Radiated Power EIRP limit for the application of these systems for fixed point to point applications in the 5 8 GHz frequency band In other bands and in other countries EIRP limits may apply In the case of EIRP limits use the lesser of either Pou Li G1 or the EIRP limit within the previous equation You should check this equation in both directions to assure legal application An EIRP limit is the maximum RF energy that can be transmitted as measured at the transmitting antenna and is usually determined by government regulations Proxim s recommendation is to keep at least 60 70 of the first Fresnel zone free If the clearance is lower than this percentage the ink budget and achieved fade margin are affected Clearances more than 10096 of the Fresnel zone can cause reflections that are 180 degrees out of phase and can cancel out the signal The Fresnel zone works in both the horizontal and vertical paths The first Fresnel zone size is a list Proxim s recommendation is to keep at least 60 7096 of this zone free If the clearance is lower than this percentage the ink budget and achieved fade margin are affected Clearances
29. ge erinin oniani pde iaia 24 Glearance ESCIOL ire iie tios lai 24 Distance Assumptions and Expectations ii 26 Modelb054 EC PPE unm 26 IGS OSA Reais aoe aces hes PRENDE 27 IWC A Re ERE 27 GAICUIATIONS s iisiicdiciihedcsadaccsidsanasenasadancsdscancedtandnacadaatedcecedeadanwendadahaasnatancanaddaaatdoaddecenttansvasatcadecaneadapsnddaddeccndauseacad 28 Calculating Received Signal Level and Link Budget 28 CHAPTER 3 ANTENNA CABLING SYSTEM 1 rrerrrere iii serie ere 32 INtroductioni crisiila elia 32 Gable Components ii 32 Selecting the Correct Connector Type i 33 SUJE Arresto ansa E 34 Installation ienee aan E R E Error Bookmark not defined SUPPORT AND WARRANT Y inr cio cen aid sta darai 36 Warranty andi Repair ss esee reni lea at 37 Copyright 2006 Proxim Wireless Corporation All rights reserved 3 Tsunami MP 11 Antenna Installation About This Book This Antenna Installation Guide explains how to install and set up an outdoor antenna with the 5054 5054 R and 2454 R hardware This guide does not explain how to erect antenna masts nor how to install a safety grounding system These prerequisites must be in place before installing the directional antenna See Tsunami MP 11 Recommended 5 GHz and 2 4 GHz Antennas for a list of and specifications for antennas you can use with the 5054 5054 R and 2454 R
30. gement manual included with each product Configuration and Management Configuration and management of outdoor wireless links is accomplished with management tools that come with the systems Some examples of management tools are Web based HTTP management Telnet 9 Wireless network manager 10 Hardware Specifications Hardware and radio frequency specifications for the unit are described in the documentation that comes with the product Hardware specifications for the outdoor antennas the cabling system and the surge arrestor are listed in Tsunami MP 11 Recommended 5 GHz and 2 4 GHz Antennas Additional Files on Your Software CD All software CDs that come with your Proxim products include a Release Notes file in the Doc subdirectory This file contains information about the software version and drivers You are advised to print and read the Release Notes file prior to installing your Proxim products as it may contain information that was not available when this document was printed Other Sources of Information You can download all Tsunami MP 11 documentation from the Proxim Support website http support proxim com Visit the website regularly for the latest available information documentation software updates and other Proxim news Copyright 2006 Proxim Wireless Corporation All rights reserved 5 Tsunami MP 11 Antenna Installation ABOUT THE TSUNAMI MP 11 PRODUCT FAMILY The Tsunami MP 11 models let you set up a wireless
31. ic Time LAN Toll Free 1 866 674 6626 Hours 24x7 International Customers Call Technical Support WAN 408 542 5390 Hours 6 00 AM to 5 00 PM M F Pacific Time LAN 408 542 5390 Hours 24x7 Search Knowledgebase http support proxim com Latest software and documentation http support proxim com Copyright 2006 Proxim Wireless Corporation All rights reserved 36 Tsunami MP 11 Antenna Installation WARRANTY AND REPAIR If it appears that your unit needs a repair or replacement return the unit to your Dealer or Distributor in its original packaging When returning a defective product for Warranty always include the following documents e The Warranty Repair card last page of this appendix e Acopy of the invoice or proof of purchase e Problem Report Form Proxim Wireless Corporation extends a limited warranty from date of purchase of e Twelve 12 months for the MP 11a and 5054 R hardware e Twelve 12 months for the media on which the software is furnished and the reproduction of the software on the media Upon proof of purchase Proxim Wireless Corporation shall at its discretion repair or replace the defective item at no cost to the buyer Defective items shall be returned to the dealer or distributor e Freight prepaid e Accompanied by a copy of proof of purchase e Accompanied by a filled out Warranty and Repair card This warranty is contingent upon proper use in the application for which the products are int
32. ion carried over the link and the overall network design redundancy you may want to design for a specific availability rate For example if the data or voice traffic carried by the radio is critical the link can be designed for a very high availability rate for example 99 999 or 5 3 minutes of predicted outage per year Availability can be improved by increasing the fade margin either by making the path shorter or by using the higher gain antennas in conjunction with lower loss antenna cable using a higher quality antenna cable shortening the length or both If the system is intended to operate with roaming of Subscriber Units between BSUs the SU must maintain a high enough signal level while switching from one BSU to the next Due to the time necessary to switch the coverage and therefore the distance between the BSUs is impacted by the speed of movement of the SU or RSU The Link Budget of both links between an SU or RSU and either BSU must be high enough to allow good quality communication and a smooth handover Note In previous 1 x versions of the software in which the SU had a long timeout upon registration the switch to a new BSU is made only when the link with the current BSU is lost for at least 30 seconds Calculating Received Signal Level and Link Budget Use the following formula to estimate the received signal level RSL RSL dBm Pout Lit Gi G2 L2 Lp where Pout is the transmitter output power in d
33. ive surfaces can be used to improve a link especially if the direct line of sight is impaired or absent Weather conditions such as rain or snow usually do not have much impact on the performance of your Proxim product provided you have sealed all cable connectors with weatherproofing tape Seasonal influence on signal propagation can occur in the following situations e Amarginal communications quality in late fall with no leaves on the trees in the signal path might fail in the summer e n winter a wireless link can fail when the antenna is exposed to ice buildup or when the antenna elements are covered with snow Radio paths over water or extremely flat ground may require optimization of antenna height at one end This is due to in phase or out of phase reflections Adjustment of antenna height by 1 to 3 meters may move the signal from a null to a peak Long distance links may be obstructed by earth curvature so the antenna height requirements must not only take the height of obstructions and Fresnel Zone into account but also earth bulge The earth bulge is approximately 5 m 16 4 ft at a link distance of 16 Km 10 mi In these cases consult your supplier to take appropriate steps to maintain or optimize wireless link performance Copyright 2006 Proxim Wireless Corporation All rights reserved 16 Tsunami MP 11 Antenna Installation Mounting the Antenna As the mounting procedures for the various antennas differ fro
34. l change This acts as if a magnifying glass is centered around the average SNR and the values next to the average are significantly different SNR When the antenna is aimed the beep can easily be heard if the SNR is rising shorter period higher frequency or falling longer period When the position of the antenna has been changed the SNR averaging settles at the new value and the beeping returns to the average length so the antenna can again be aimed towards rising SNR Aiming is complete if moving in any direction results in a falling SNR value which can be heard as longer periods between beeps Notes e Antenna alignment for the Base Station is useful only for a point to point link e The range of the average SNR is limited to values from 0 to 48 Anything over 48 is capped at 48 e AAD is automatically disabled 30 minutes after it is enabled to remove the load of extra messages on the wireless interface The default telnet timeout is 900 seconds 15 minutes If AAD must run for the entire 30 minutes change the default telnet timeout value greater than 30 minutes greater than 1800 seconds This restriction is for telnet connections only and not for the serial interface The serial interface never times out Copyright 2006 Proxim Wireless Corporation All rights reserved 20 Tsunami MP 11 Antenna Installation Antenna Alignment Commands set aad enable local Enables display of the local SNR Local SNR is the SNR mea
35. l strips Cable type Cat5 UV shielded and outdoor rated 100 ohms 4 UTP 24 AWG UL rated 330 feet 100 meters total length with in line unit Dimensions 6 3 x 3 15 x 2 17 in 160 x 80 55 mm Weight 0 38lb 0 17kg Operating Temperature 20C to 80C 4F to 176F Grounding 10 32 stud with wire clamp 10 AWG grounding wire is recommended VSWR and Insertion Loss VSWR Insertion Loss S21 3 Frequency GH 3 Site Frequency GHz Copyright 2006 Proxim Wireless Corporation All rights reserved 35 Tsunami MP 11 Antenna Installation Support and Warranty If you are having a problem using a Proxim product and cannot resolve it with the information in the product documentation gather the following information and contact Proxim Technical Support e What kind of network are you using e What were you doing when the error occurred e What error message did you see e Can you reproduce the problem Be sure to obtain an RMA number before sending any equipment to Proxim for repair To receive E mail technical support be sure to include the serial number of the product s in question The serial number should be on the product and conform to the following format AT or THEUTTHHHHHEHHE or R74 444444 We are unable to respond to your inquiry without this information USA amp Canada Customers Call Technical Support WAN Toll Free 1 866 674 6626 or 408 542 5390 Hours 6 00 AM to 5 00 PM M F Pacif
36. lephone Fax Warranty Yes No Comment Return Approval Reference Reported Problem Problem Description Copyright 2006 Proxim Wireless Corporation All rights reserved 38
37. location is as close as possible to the point at which the antenna cable or Ethernet cable is to enter the building see Placement of the Surge Arrestor s on page 13 CAUTION The radio hardware the surge arrestors and the antenna mast must be connected to the same grounding system Copyright 2006 Proxim Wireless Corporation All rights reserved 12 Tsunami MP 11 Antenna Installation Cable System Prior to mounting the radio unit you are advised to carefully calculate e The distance between the intended location of your unit and the location of the antenna mast e The height of the antenna on the mast If the low loss antenna cable for the unit is not long enough to cover this distance you either can select another cable length from the Proxim Systems low loss cable offering or select another location that satisfies the requirements previously listed to mount your unit The radio unit can be placed anywhere as long as Ethernet cable length allows Because the length of the antenna cable can affect the actual range of your outdoor antenna installation Proxim recommends selecting another location or using the 5054 R model WARNING You must not change the length of the low loss antenna cable used with the 5054 to a length shorter than allowed by the radio s certifications Shortening the cable voids the Proxim Wireless Corporation warranty and can conflict with radio certifications or approvals Installing the radio
38. m one another consult the documentation you received from the manufacturer for mounting procedures Proxim Wireless Corporation offers multiple antennas to set up a wireless link as well as a unit with an integrated antenna When mounting multiple antennas on a single mast use the following methods to minimize the influence of cross talk interference between the antennas e Place your antennas as far apart as possible e Alternate the mounting of directional antennas for vertical and horizontal polarization There are two frequently used methods to erect an antenna mast Tripod Mount The tripod mount is used primarily on peaked and flat roofs The antenna mast must be secured to the roof using three or four guy wires equally spaced around the mast When the height of the antenna mast is more than 3 meters 10 ft you should use at least three guy wires for each 3 meter 10 foot section of the mast Wall Side Mount A wall side mount allows for mounting an antenna mast on the side of a building or on the side of an elevator penthouse This provides a convenient mounting location when the roof overhang is not excessive or when the location is high enough to provide a clear line of sight In most situations mounting an antenna directly to the wall does not let you align the antenna properly with the corresponding antenna at the opposite end of your wireless link As poor alignment typically results in poor performance Proxim recomme
39. more than 10096 of the Fresnel zone can cause reflections that are 180 degrees out of phase and can cancel out the signal The Fresnel zone works in both the horizontal and vertical paths Tables for output levels can be found in the Technical Specifications in the Tsunami MP 11 Installation and Management manual Table 1 Examples of Minimum Antenna Cable Loss Antenna TPC Minimum Cable Loss for Data Frequency Band Gain Setting up to 24 Mbps EIRP Deployment 5 25 5 35 GHz 10 0 0 28 5 USA 5 25 5 35 GHz 17 6 0 29 5 USA 5 25 5 35 GHz 23 10 1 5 30 USA 5 25 5 35 GHz 31 10 9 5 30 USA 5 725 5 85 GHz 10 0 0 28 5 USA PtMP 5 725 5 85 GHz 17 0 0 35 5 USA PtMP 5 725 5 85 GHz 23 6 0 35 5 USA PtMP 5 725 5 85 GHz 31 10 3 5 36 USA PtMP 5 725 5 85 GHz 10 0 0 28 5 USA PtP 5 725 5 85 GHz 17 0 0 35 5 USA PtP 5 725 5 85 GHz 23 0 0 41 5 USA PtP 5 725 5 85 GHz 31 0 0 49 5 USA PtP 5 47 5 725 GHz 10 0 0 28 5 ETSI 5 47 5 725 GHz 17 6 0 29 5 ETSI 5 47 5 725 GHz 23 10 1 5 30 ETSI 5 47 5 725 GHz 31 10 9 5 30 ETSI Note that higher data rates use lower output power so less cable loss is required to meet the maximum EIRP limit Copyright 2006 Proxim Wireless Corporation All rights reserved 30 Tsunami MP 11 Antenna Installation Table 2 Distance and Link Budget Reference Frequency 5600 MHz Center Frequency for Europe Link Budget Distance Fresnel Zone Link Budget Distance Fresnel Zone Link Budget Dist
40. nds always mounting the antennas to a mast Antenna Mast Requirements To accommodate the antennas the antenna mast must satisfy the following requirements e The construction of the mast must consist of sturdy weatherproof and non corrosive material for example galvanized or stainless steel construction pipe e Typical diameter of the mast should be between 35 mm 1 4 in and 41 mm 1 6 in up to 4 in for 5054 R Depending upon the type of antenna you intend to install other diameters also may be possible e The height of the antenna mast must be sufficient to allow the antenna to be installed at least 1 5 m 5 ft above the peak of the roof If the roof is of metal the height of the antenna should be at least 3 m 10 ft above the roof e The mast or wall bracket must be free from any substance that may prevent a good electrical connection with the antenna for example paint Copyright 2006 Proxim Wireless Corporation All rights reserved 17 Tsunami MP 11 Antenna Installation Connecting the Antenna Cable Once the antenna is properly installed you can connect the antenna to the unit by way of the surge arrestor 1 Connect the antenna cable to the antenna Secure the antenna cable to the mast so that the cable connectors do not support the full weight of the cable Connect the opposite end of the antenna cable to the surge arrestor see Surge Arrestor Installation Error Bookmark not defined CAUTION To av
41. nection of the radio hardware from the AC wall outlet The location provides a connection to the network backbone an Ethernet LAN cable that is connected to a hub bridge or directly into a patch panel The location is as close as possible to the point at which the antenna cable is to enter the building see Placement of the Surge Arrestor on page 13 The ideal location has a temperature of 0 55 C and a maximum relative humidity non condensing of 95 CAUTION The radio hardware the surge arrestor and the antenna mast must be connected to the same grounding system Outdoor Hardware Placement The 2454 R and the 5054 R are designed for outdoor mounting and operation To make optimal use of the units you must find a suitable location for the hardware The radio range largely depends upon the position of the antenna Proxim recommends you do a site survey observing the following requirements before mounting the hardware The location must allow easy disconnection of the unit from the power outlet if necessary The radio units must not be covered and air must be able to flow freely around it The radio units must be kept away from vibration and excessive heat and must be kept free from dust buildup The installation must conform to local regulations at all times The location provides a connection to the network backbone an Ethernet LAN cable that is connected to a hub bridge or directly into a patch panel The
42. o 1 6 miles maximum 6 Mbps mode 5 725 5 850 MHz Model 2454 R Assumptions Point to multipoint configuration using USA regulations for L and U bands ETSI regulations for M bands 2 8 miles at peak performance 36 Mbps mode Up to 7 6 miles maximum 6 Mbps mode Clear line of sight with no unusual multipath Sector antenna 17 dBi 60 at Base Station with 20 foot LMR 600 cable Three foot parabolic dish 31 4 dBi at Subscriber Unit with 20 foot LMR 600 cable for USA 14 dBi panel antenna at Subscriber Unit with 20 foot LMR 600 cable for ETSI With a fade margin minimum of 10 dB to 2 miles and 0 2 dB additional fade margin for every 0 1 miles to 15 dB availability is greater than 99 99 Expectations 6 8 miles at peak performance 11 Mbps for FCC 0 9 miles at peak performance 11 Mbps for ETSI Up to 1 73 miles maximum 1 Mbps for FCC Up to 3 miles maximum 1 Mbps for ETSI Copyright 2006 Proxim Wireless Corporation All rights reserved 27 Tsunami MP 11 Antenna Installation CALCULATIONS Availability of the microwave path is a prediction of the percent of time that the link operates without producing an excessive bit error rate BER due to multipath fading In the absence of direct interference availability is affected by the following Path length Fade margin Frequency Terrain smooth average mountainous e Climate dry temperate humid Depending upon the type of informat
43. oid damage to the antenna cable and connectors refrain from using tools to tighten the cable connectors Prior to securing the cable along its complete length run the Link Test diagnostics of the management tools that come with the unit to analyze wireless performance and optimal placement of the outdoor antenna Use of this tool is described in the documentation that comes with the radio unit and also can be downloaded from the Proxim support website at http support proxim com If required adjust the direction of the antenna Once the installation has been fully tested tighten the nuts of the antenna to lock the antenna into its position CAUTION Avoid over tightening of the connector and nuts and screws used to mount the antenna to prevent damage to your antenna and radio hardware Secure the cable along its complete length with cable ties or electrical tape to relieve strain on the antenna connector properly No part of any cable should be allowed to hang free This is especially important for those parts that are routed outside the building Proceed as described in the next section to weatherproof all outdoor connectors Sealing the Cable Connectors Most problems associated with wireless outdoor installations are related to degrading performance due to corrosion of the antenna cable and cable connectors To avoid this type of problem you must always seal the cable connectors that are located outdoors using weatherproofing ta
44. om power lines or telephone lines The safe distance should be at least twice the height of the antenna mast plus the height of the antenna Antennas shall be mounted in such a manner as to minimize the potential for human contact during normal operation To avoid the possibility of exceeding the FCC radio frequency exposure limits human proximity to the antenna shall not be less than 20 cm 8 inches during normal operation The low loss antenna cable that is to connect the antenna with the surge arrestor or with the Ethernet cable that is to connect to the surge arrestor must be at least 1 m 3 ft away from any high voltage or high current cable Check whether the antenna mast and its guy wires or wall bracket are positioned correctly and secured properly to the roof or walls Check whether the grounding system for the antenna mast the MP 11a and 5054 R hardware and the surge arrestor have been installed The grounding system must comply with the requirements as described in Grounding the Antenna Always consult a qualified electrician if you are in doubt as to whether the antenna mast the surge arrestor and the hardware are properly grounded The antenna cable between the antenna and the surge arrestor must be grounded at all times If the cable is disconnected at one end for some reason for example to replace the surge arrestor you must ensure that the exposed metal connector of the cable is grounded locally during the work
45. ong winds e Unexpected obstacles in the link path e Seasonal influences such as leaves on trees or icing on the antennas Clearance Factor For optimal performance of your outdoor wireless link the signal path between the Base Station Unit and Subscriber Unit must provide sufficient clearance Note An outdoor wireless link that lacks sufficient clearance will suffer from poor performance which is typically perceived as slow network response times Although your radio equipment automatically retransmits every lost data frame due to an out of range situation or frame collision the larger the number of retransmissions the lower the throughput efficiency of your wireless link This section explains how to determine the clearance that applies in your environment and if applicable the effect of insufficient clearance on the range of your outdoor wireless link In Chapter 1 Preparing for Installation on page 7 we described the shape of the antenna beam as being bulged in the middle Figure 3 Fresnel Zone Copyright 2006 Proxim Wireless Corporation All rights reserved 24 Tsunami MP 11 Antenna Installation If any significant part of this bulged zone is obstructed a portion of the radio energy is lost which can affect the performance of your wireless link in terms of maximum range and transmit rate In Figure 3 you see two variables that determine the shape of the antenna beam also referred to as Fresnel Zone e The
46. pe You are advised to seal the connectors only after you have verified optimal alignment of the antennas using the Link Test as described in the documentation that comes with the radio unit Doing so lets you adjust antenna placement and cable routing without removing the tape To weatherproof the connectors 1 Prepare the cable and connectors so that they are dry and free from dust dirt and grease 2 Attach the tip of the weatherproofing tape to the cable just above the connector Holding the tape in its position now stretch the tape and wind it half overlapped around the cable and connectors to form a void free joint The degree of stretch may vary in different sections of the joint as long as the overlaps accomplish a void free application Copyright 2006 Proxim Wireless Corporation All rights reserved 18 Tsunami MP 11 Antenna Installation 3 To protect the weatherproofing stretch tape from the effects of Ultra Violet UV radiation for example from direct sunlight you should protect the joint with two half overlapped layers of any vinyl plastic electrical tape Alternatively you can apply silicone sealer to protect the weatherproofing tape from sunlight rain and other weather conditions Grounding the Antenna Direct grounding of the antenna mast radio hardware and surge arrestor is extremely important Note A safety grounding system is necessary to protect your radio hardware from lightning strikes and th
47. proofing of all connections Note All outdoor cable connectors must be sealed with weatherproofing stretch tape to make the connectors permanently waterproof See Sealing the Cable Connectors on page 18 DANGER For your own safety the antenna mast and the grounding system should be installed only by experienced installation professionals who are familiar with local building and safety codes and with the National Electrical Codes NEC Read carefully the instructions described in Grounding the Antenna and verify that your installation complies with the appropriate regulations and codes before installing the antenna Placing the Antenna To achieve maximum performance of your wireless outdoor link the outdoor antenna must have clear line of sight to the antenna of the other unit Although the radio signal can work well without line of sight in urban environments in which the signal is transported by reflection rather than being direct the best results are achieved in line of sight conditions Line of sight can be defined as e No obstacles in the direct path between the antennas antenna beam e No obstacles within a defined zone around the antenna beam You should be aware that the shape of an antenna beam is not straight and narrow like a laser beam The antenna beam also known as Fresnel Zone is rather bulged in the middle such as for example a rugby ball Pronounced as Fray Nell Copyright 2006 Proxim
48. range you may not even need full clearance To determine the effect of insufficient signal path clearance you must determine the Clearance Factor as described below and calculate its effect on the range for your antenna installation using the formula described in Determining the Outdoor Range on page 23 e fthe clearance for your antenna installation is equal to or better than the minimum clearance requirement the Clearance Factor for your installation is 100 e f your actual clearance is less than the minimum clearance use the diagram depicted in the following figure to determine the actual range that applies in your situation Note The Clearance Factor Diagram should be used as a rule of thumb for estimating the probable range in case the clearance requirements are not fully met In real life using FCC approved products you will also find it almost impossible to achieve the level of clearance for maximum range due to interference from other radio products Copyright 2006 Proxim Wireless Corporation All rights reserved 25 10096 75 Clearance Factor 50 25 0 100 Tsunami MP 11 Antenna Installation 32 75 50 25 15 0 Actual Clearance Figure 4 Clearance Factor Diagram DISTANCE ASSUMPTIONS AND EXPECTATIONS Model 5054 Assumptions Point to multipoint configuration using USA regulations for L and U bands ETSI regulations for M bands Clear line of sight with no unusual
49. reless Corporation All rights reserved 22 Tsunami MP 11 Antenna Installation Chapter 2 Determining Range and Clearance When you read about wireless outdoor products you often encounter the terms output power of the radio and gain of the antenna equipment as measures for the strength of the transmitted signal e Output power of radio equipment often depends on maximum limits as defined by local radio regulations consequently output power is by definition not the way to enhance wireless performance e High gain antennas are larger in size than low gain antennas and are characterized by a narrow focus of the antenna beam These two characteristics make it more difficult to aim the antennas and adjust antenna alignment to optimize the performance of the wireless point to point link The 5054 2454 R and 5054 R outdoor solution is based upon the following principles e Output power and antenna gain that comply with the maximum limits as defined by local governing bodies concerning radio transmissions e Enhanced radio sensitivity for optimal receive quality of radio signals transmitted by remote antennas DETERMINING THE OUTDOOR RANGE The range of your outdoor antenna installation is closely related to a number of different factors To let you determine the range of the antenna system in your situation we have defined the following formula Range Maximum Range x Clearance Factor where Maximum Range Identifies the
50. ss antenna cable to the grounding system Mount the antenna to the support structure following the guidelines as described for your antenna When mounting multiple antennas on a single mast use the following methods to minimize the influence of cross talk interference between the antennas Place your antennas as far apart as possible Alternate the mounting of directional antennas for vertical and horizontal polarization Consult the mounting instructions for your antenna as described in Tsunami MP 11 Recommended Antennas for options and instructions for mounting the antennas for different polarization Connect the antenna cable to the antenna Route the antenna cable to the surge arrestor that has been installed near the ingress point Connect the antenna Ethernet cable to the surge arrestor Attach the surge arrestor to the N type female bulkhead connector Run the Link Test diagnostics of the management tools that come with the radio unit to aim the antenna and verify optimal placement Note You can use the unit s Antenna Alignment Display utility See Aligning the Antenna on page 19 Once the antenna is correctly positioned and you have verified the installation works properly secure all cables and use weatherproofing tape to seal all outdoor connectors Note When you must remove or relocate the antenna follow the Safety Precautions at the beginning of this chapter and follow the steps listed above in exactly
51. sured by the receiver at the near end set aad enable remote Enables display of the remote SNR Remote SNR is the SNR as measured by the receiver at the far end set aad enable average Enables display of the average SNR The average SNR is the average of the local and remote SNR set aad disable Disables Antenna Alignment Display Ctrl C also disables AAD Link Test You also can use the Link Test option of the management tools that come with the radio unit to analyze the radio link quality The Link Test option lets you display the radio signal strength in relation to the noise in the signal path If required you can interactively optimize the antenna alignment with the Link Test by making small modifications in the antenna orientation The Link Test provides SNR Signal and Noise information Link Test X Initiator Station Info Remote Station Info tation Name Tsunami MP 11 5054 Tsunami MP 11 5054 MAC Address 00 12 CF 02 83 33 00 12 CF 02 83 A1 SNR d i 1 AN OOTO T TTT Z __W Signal dBm NENNEN o es Noise dBm ipei EN 90 Close Link Test stops when you close the Link Test page Alternatively consult a professional Antenna Installation Service to optimize the antenna alignment Antenna Polarization Outdoor antennas are standard mounted for vertical polarization In some cases you might consider mounting the antenna for horizontal polarization for example to minimize the influence of cross talk between
52. system based upon two basic topologies e A point to point link which lets you set up a connection between two locations as an alternative to Leased lines in building to building connections o 9 Wired Ethernet backbones between wireless access points in difficult to wire environments SU e Asingle point to multipoint network which lets you connect more than two buildings You can set up a single point to multipoint network with a single Base Station Unit and multiple Subscriber Units Building A Building C Building B A link between two locations always consists of a Base Station Unit BSU and a Subscriber Unit SU A BSU can depending upon its configuration connect to one or more SUs an SU however can connect to only one BSU Note Depending upon local radio regulations and legislation the outdoor antenna solutions described in this document may not be available in all parts of the world Copyright 2006 Proxim Wireless Corporation All rights reserved 6 Tsunami MP 11 Antenna Installation SAFETY PRECAUTIONS Read this section carefully before beginning the installation All of the following requirements should be satisfied prior to starting installation of your outdoor antennas DANGER The outdoor antennas to be used with this product are intended for mounting on a roof or on the side of a building Any person not trained or experienced in this type of work should not attempt this installation A
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