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Cisco Aironet 5-dBi Omnidirectional Antenna (AIR-ANT2450V-N)
This document describes the Cisco Aironet AIR-ANT2450V-N 5-dBi Omnidirectional Antenna and provides instructions for mounting it. The antenna operates in the 2.4-GHz frequency range and is designed for outdoor use with the Cisco Aironet 1520 Series Outdoor Mesh Access Point (hereafter referred to as the access point).
The following information is provided in this document.
This antenna is designed for use with the Cisco Aironet 1520 Outdoor Mesh Access Point. The antenna is compatible with Cisco Aironet 1505 and 1510 Outdoor Mesh Access Points.
Each year hundreds of people are killed or injured when attempting to install an antenna. In many of these cases, the victim was aware of the danger of electrocution, but did not take adequate steps to avoid the hazard.
For your safety, and to help you achieve a good installation, please read and follow these safety precautions. They may save your life!
1. If you are installing an antenna for the first time, for your own safety as well as others, seek professional assistance. Your Cisco sales representative can explain which mounting method to use for the size and type antenna you are about to install.
2. Select your installation site with safety, as well as performance in mind. Remember: electric power lines and phone lines look alike. For your safety, assume that any overhead line can kill you.
3. Call your electric power company. Tell them your plans and ask them to come look at your proposed installation. This is a small inconvenience considering your life is at stake.
4. Plan your installation carefully and completely before you begin. Successful raising of a mast or tower is largely a matter of coordination. Each person should be assigned to a specific task, and should know what to do and when to do it. One person should be in charge of the operation to issue instructions and watch for signs of trouble.
5. When installing your antenna, remember:
a. Do not use a metal ladder.
b. Do not work on a wet or windy day.
c. Do dress properly—shoes with rubber soles and heels, rubber gloves, long sleeved shirt or jacket.
6. If the assembly starts to drop, get away from it and let it fall. Remember, the antenna, mast, cable, and metal guy wires are all excellent conductors of electrical current. Even the slightest touch of any of these parts to a power line complete an electrical path through the antenna and the installer: you!
7. If any part of the antenna system should come in contact with a power line, don't touch it or try to remove it yourself. Call your local power company. They will remove it safely.
8. If an accident should occur with the power lines call for qualified emergency help immediately.
The antenna is designed to connect to a dedicated antenna port on the access point. No special tools are required to install the antenna.
The antenna is resistant to the full range of outdoor environments. Therefore, Cisco does not recommend using cable or antenna waterproofing materials. Using such materials may cause important drainage holes to be blocked. Six drain holes are located on the antenna base. Figure 1 shows the location of two drain holes. The other drain holes are proportionally spaced around the antenna base.
Figure 1 Antenna Drain Hole Location
Choosing a Mounting Location
The antenna is designed to create an omnidirectional broadcast pattern. To achieve this pattern, the access point should be mounted clear of any obstructions to the sides of the radiating element. If the mounting location is on the side of a building or tower, the antenna pattern is degraded on the building or tower side.
Generally, the higher an antenna is above the ground, the better it performs. Good practice is to install your antenna about 5 to 10 ft (1.5 to 3 m) above the roof line and away from all power lines and obstructions.
Tools and Equipment Required
No tools are required to mount the antenna to the access point. However, you may need a ¾-in (19-mm) open end combination or open end wrench (or adjustable wrench) to remove the antenna port covers.
For information about tools required to mount the access point, see the appropriate access point documentation.
Mounting the Antenna
Figure 2 identifies and shows the locations of the antenna ports when looking at the access point from its hinged cover side.
Figure 2 Antenna Port Locations
Installing the antennas depends on which type access point you are using. Two configurations are available: cable strand mount and pole mount. Table 1 shows the antenna port usage for these configurations.
Follow these steps to connect the antenna to the access point.
Step 1 If necessary, remove the antenna port covers.
Step 2 Using Table 1 as a guide, align the antenna's N connector with the appropriate 2.4-GHz antenna port.
Step 3 Gently push the antenna into the port.
Step 4 Tighten the antenna hand tight.
Obtaining Documentation, Obtaining Support, and Security Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
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