Alvarion BreezeNET PRO.11 Guía de usuario Pagina 107
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Valorado. / 5. Basado en revisión del cliente
Planning and Installing Wireless LANS
BreezeNET PRO.11 Series
5-3
User’s Guide
Point-to-Point installations require directional antennas at either end of the link. To
select the best antenna for a specific application, consider the following factors:
• Distance between sites
• Required throughput
• Clearance between sites
• Cable length.
Refer to Section 5.3.7 to determine the best combination of antennas for your
application.
5.1.1.2 Point-to-Multipoint
Point-to-Multipoint applications consist of one or more APs at the central site and
several remote stations and bridges (SA-10, SA-40, WB-10). In this configuration,
use an Omni-6 antenna with the Access Point because of its 360
° radiation pattern.
In the United States, the Omni-7.2 antenna (which also has a 360
° radiation pattern
but has a wider range) can also be used. The Omni-7.2 antenna comes with a 20ft.
low loss cable and a mast mount bracket for rooftop installations.
The remote units should use directional antennas aimed in the direction of the AP’s
antenna(s).
5.1.1.3 Mobile Applications
In mobile applications, station orientation changes continuously. In order to
maintain connectivity throughout the entire coverage area, most mobile applications
require omni-directional antennas for both Access Points and wireless stations. In a
motor vehicle, for example, you can install an SA-10 in the cabin, and mount the
antennas (in most cases an Omni-6) on the roof.
- User’s Guide 1
- Front Matter 2
- TABLE OF CONTENTS 5
- Table of Contents 6
- TABLE OF FIGURES 10
- Table of Figures 11
- 1. INTRODUCTION 13
- Introduction 14
- BreezeNET PRO series 15
- 1.4.2 Startup Procedure 25
- 1.4.3 AP-10 Access Point 25
- 1.4.4 SA-10 Station Adapter 26
- 1.4.5 SA-40 Station Adapter 26
- 1.4.6 WB-10 Wireless Bridge 26
- 1.4.7 SA-PCR Station Adapter 27
- 2. BASIC INSTALLATION 29
- 2.3 Position the Unit 30
- Basic Installation 32
- 10), and for Access Points 33
- 2.6.2 Access Point LEDs 34
- SETUP AND MANAGEMENT 35
- 3.2 Configuration Screens 36
- 3.3 Main Menu 39
- 3.4 System Configuration Menu 39
- 3.4.1 Station Status 40
- 3.4.2 IP and SNMP Parameters 41
- Table 3-1. Hopping Sequences 42
- 3.4.4 Bridging 45
- 3.4.5 Station Control 46
- 3.5 Advanced Settings Menu 48
- 3.5.2 Performance 49
- 3.5.3 Radio 50
- 3.5.4 Rate 50
- 3.5.5 AP Redundancy Support 50
- 3.6 Site Survey Menu 51
- 3.6.1 System Counters 52
- MAC address 56
- Official Version: 4.4.1 57
- Date: 26 May 1999 15:10:33 57
- 3.6.1.5 Reset All Counters 58
- 3.6.2 Survey Software 59
- RSSI to dBm 61
- 3.6.4 Event Log 62
- 3.7 Access Control Menu 63
- SETUP, AND MANAGEMENT 65
- For Windows 95A 70
- For Windows 95B 71
- 4.3.3 Initial Configuration 75
- 4.5.1 Station Status Tab 78
- 4.5.2 WLAN Parameters Tab 79
- 4.5.3 Station Control Tab 80
- 4.5.5 Power Management Tab 83
- 4.5.6 Security Tab 84
- 4.5.7 Maintenance Tab 87
- 4.5.8 Radio Tab 88
- 4.5.9 Performance Tab 89
- Figure 4-19. Survey Log 93
- To run a Site Survey: 95
- BreezeCOM 98
- BreezeNET PRO.11 Series 100
- Configuration Notes 103
- 5.1 System Configurations 105
- 5.1.1.1 Point-to-Point 106
- 5.1.1.2 Point-to-Multipoint 107
- ° radiation pattern 107
- 5.1.1.3 Mobile Applications 107
- Access Point to an Ethernet 109
- Access Points to an Ethernet 111
- 5.1.3 Multicell Configuration 112
- 5.2.1 Site Selection Factors 115
- $QWHQQDV 116
- +HDW6RXUFHV 116
- &HQWUDO/RFDWLRQ 116
- 5.2.2.1 Antenna Diversity 117
- 5.2.3 Construction Materials 118
- 5.2.4 Cell Size 119
- 5.3.1 Site Selection Factors 120
- 5.3.2 Rooftop Installation 121
- 5.3.3.1 Point-to-Point 122
- 5.3.3.2 Point-to-Multipoint 122
- 5.3.3.3 Antenna Alignment 122
- 5.3.3.4 Antenna Diversity 123
- 5.3.3.5 Antenna Polarization 123
- 5.3.4 Antenna Seal 124
- 5.3.5 Cell Size 124
- 5.3.6 Link Distance 124
- D Models, DL Models 127
- – DE Models 128
- Data Rate = 3Mbps, Sen=-71dBm 129
- Data Rate = 1Mbps, Sen=-81dBm 129
- Data Rate = 2Mbps, Sen=-75dBm 130
- Data Rate = 3Mbps, Sen=-67dBm 130
- Meter Heliax cable 131
- BreezeNET PRO.11 units 135
- 5.5 Precautions 137
- 5.5.3 Lightning Protection 138
- 5.5.4 Rain Proofing 138
- 6. ACCESSORY INSTALLATION 139
- 6.1.1 Installing the TPA 24 140
- 6.2.1 Installing the LNA 10 141
- Accessory Installation 142
- 6.4 AL 1 Lightning Arrestor 143
- WARNING! 146
- 7. UPGRADE PROCEDURE 149
- 8. SYSTEM TROUBLESHOOTING 151
- System Troubleshooting 152
- BreezeNET PRO.11 153
- 8.2 Checking Counters 155
- 9. APPENDIX 157
- 9.1.2 Supported Traps 158
- 9.2 Technical Specifications 159
- Appendix 160
- 9-5 User’s 161
- 9-7 User’s 163
- Amplifier 165
- Wired LAN Topology 166
- Wireless LAN Topology 167
- 9-13 User’s 169
- /RDG6KDULQJ 170
- '\QDPLF5DWH6ZLWFKLQJ 171
- 0HGLD$FFHVV 171
- )UDJPHQWDWLRQ 172
- &ROOLVLRQ$YRLGDQFH 172
- &KDQQHOL]DWLRQ 172
- 9.4 Radio Signal Propagation 173
- 5)3RZHU/HYHO 174
- $WWHQXDWLRQ 174
- Isotropic Antenna 175
- Antenna Gain 175
- Radiation Pattern 176
- Side Lobes 176
- Omni-directional Antenna 176
- Directional Antenna 176
- Antenna Beamwidth 177
- Receiver Sensitivity 177
- 6LJQDO)DGLQJ 179
- Clear Line of Sight 180
- Fresnel Zone 180
- 9.5.1 Architecture Components 181
- 9.5.3 The MAC Layer 183
- 9-29 User’s 185
- 9-31 User’s 187
- 9.5.3.5 Inter-Frame Spaces 188
- 9-33 User’s 189
- 9.5.5 Roaming 190
- 9.5.6 Keeping Synchronization 191
- 9.5.7 Security 191
- 9.5.7.2 Eavesdropping 192
- 9.5.7.3 Power Saving 192
- 9.5.8 Frame Types 193
- 9.5.9 Frame Formats 194
- Protocol Version 195
- Type and Subtype 196
- 9-41 User’s 197
- 'XUDWLRQ,' 198
- $GGUHVV)LHOGV 198
- 6HTXHQFH&RQWURO 199
- &5& 199
- 9.5.10.1 RTS Frame Format 199
- 9.5.10.2 CTS Frame Format 200
- 9.5.10.3 ACK Frame Format 200
- 9.5.12 Ad-Hoc Networks 201
- 3 User’s 205
- 5 User’s 207
- 7 User’s 209
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