User's Manual
Table Of Contents
- Chapter 1: Introduction 1-1
- Chapter 1: Introduction
- Chapter 2: Hardware Installation
- Chapter 3: External Antennas
- Chapter 4: Network Configuration
- Chapter 5: Initial Configuration
- Chapter 6: System Configuration
- Chapter 7: Command Line Interface
- Using the Command Line Interface
- Entering Commands
- Command Groups
- General Commands
- System Management Commands
- System Logging Commands
- System Clock Commands
- DHCP Relay Commands
- SNMP Commands
- snmp-server community
- snmp-server contact
- snmp-server location
- snmp-server enable server
- snmp-server host
- snmp-server trap
- snmp-server engine-id
- snmp-server user
- snmp-server targets
- snmp-server filter
- snmp-server filter-assignments
- show snmp groups
- show snmp users
- show snmp group-assignments
- show snmp target
- show snmp filter
- show snmp filter-assignments
- show snmp
- Flash/File Commands
- RADIUS Client
- 802.1X Authentication
- MAC Address Authentication
- Filtering Commands
- WDS Bridge Commands
- Spanning Tree Commands
- Ethernet Interface Commands
- Wireless Interface Commands
- interface wireless
- vap
- speed
- turbo
- multicast-data-rate
- channel
- transmit-power
- radio-mode
- preamble
- antenna control
- antenna id
- antenna location
- beacon-interval
- dtim-period
- fragmentation-length
- rts-threshold
- super-a
- super-g
- description
- ssid
- closed-system
- max-association
- assoc-timeout-interval
- auth-timeout-value
- shutdown
- show interface wireless
- show station
- Rogue AP Detection Commands
- Wireless Security Commands
- Link Integrity Commands
- IAPP Commands
- VLAN Commands
- WMM Commands
- Appendix A: Troubleshooting
- Appendix B: Cables and Pinouts
- Appendix C: Specifications
- Glossary
- Index
External Antennas
3-2
3
Consider these points:
• Use the antenna’s mounting bracket or other hardware, if included.
• For optimum performance, mount antennas as high as possible above any
obstructions, and away from any signal absorbing or reflecting structures
(such as those containing metal)
• Be sure there are no other radio antennas mounted within 2 m (6 ft).
• Consider the antenna’s radio coverage pattern so that it can properly cover
the intended service area.
• Omnidirectional Antennas - Consider these factors when selecting a
location for these antennas:
• Always mount the antenna in a vertical orientation so that the radio
coverage pattern fills the intended horizontal space.
• For optimum coverage, mount the antenna at the center of the area with a
line-of-sight path to all points within the area.
• Avoid mounting next to or near building support columns or other
obstructions that may cause reduced signal or null zones in parts of the
coverage area.
• When mounting outdoors using a mast, make sure that the antenna extends
beyond the top of the mast.
• Directional Antennas - Consider these factors when selecting a location for
these antennas:
• For optimum coverage, mount the antenna above any obstructions,
directed at the center of the coverage area sector.
• High-gain directional antennas provide a flattened radio coverage pattern
in the horizontal plane. Use the tilting or articulated mounts to point the
antennas towards the coverage area.
• Outdoor Installation - When installing an antenna outdoors, be sure to
consider these additional factors:
• Always place the antenna away from power and telephone lines
• Make sure that the antenna, any supporting structure, and cables are all
properly grounded.
• For lightning protection, consider using a lightning arrestor immediately
before the cable enters the building.
Warning: Never install an antenna or construct a radio mast near overhead
power lines.
2. Mount the Antenna
Install the antenna in its planned location using the brackets, clips, or other hardware
included in the antenna package.
Refer to documentation included with the antenna for specific information and
installation instructions.