Published On: August 5ᵗʰ, 2019 19:04
Cisco Aironet 2.4-GHz/5-GHz MIMO 4-Element Patch Antenna (AIR-ANT2566P4W-R)
This document outlines the specifications for the Cisco Aironet 2.4-GHz/5-GHz MIMO 4-Element Patch Antenna (AIR-ANT2566P4W-R) and provides mounting instructions. The antenna operates in both the 2.4-GHz and 5-GHz frequency ranges and is designed for indoor and outdoor use.
Technical Specifications
Figure 1 Azimuth and Elevation Radiation Patterns - 2.4 GHz Band
Figure 2 Azimuth and Elevation Radiation Patterns - 5 GHz Band
System Requirements
This antenna is designed for indoor and outdoor use with any Cisco Aironet access point that requires four (4) dual-band antennas.
Safety Precautions
Translated versions of the following safety warnings are provided in the Safety Warnings for Cisco Aironet Antennas, which is available at http://www.cisco.com.
Warning
Installation of
this antenna near power lines is dangerous. For your safety, follow
the installation directions.
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
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:
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 completes 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 occurs with the power
lines, call for qualified emergency help immediately.
Installation Notes
Antennas transmit and receive radio signals which are susceptible to RF obstructions and common sources of interference that can reduce throughput and range of the device to which they are connected. Follow these guidelines to ensure the best possible performance:
- Install the antenna vertically and mount it with the cables pointing towards the ground.
- Keep the antenna away from metal obstructions such as heating and air-conditioning ducts, large ceiling trusses, building superstructures, and major power cabling runs. If necessary, use a rigid conduit to lower the antenna away from these obstructions.
- The density of the materials used in a building’s construction determines the number of walls the signal can pass through and still maintain adequate signal strength. Consider the following before choosing the location for your antenna:
– Signals penetrate paper and
vinyl walls with little change to signal strength.
– Signals penetrate only one or
two solid and pre-cast concrete walls without degrading signal
strength.
– Signals penetrate three or four
concrete and wood block walls without degrading signal
strength.
– Signals penetrate five or six
walls constructed of drywall or wood without degrading signal
strength.
– Signals will likely reflect off
a thick metal wall and may not penetrate it at all.
– Signals will likely reflect off
a chain link fence or wire mesh spaced between 1 and 1 1/2 in. (2.5
and 3.8 cm). The fence acts as a harmonic reflector that blocks the
signal.
- Install the antenna away from microwave ovens and 2-GHz cordless phones. These products can cause signal interference because they operate in the same frequency range as the device to which your antenna is connected.
Choosing a Mounting Location
The antenna should be mounted clear of any obstructions to the sides of the radiating elements. Generally, the higher an antenna is above the floor, the better it performs. If possible, find a mounting place directly above your wireless device to ensure the lead-in cable can be as short as possible.
Installing the Antenna
You can install the antenna on any wall. If you intend to install your antenna on another surface, you must provide the appropriate hardware.
Note Four mounting screws
are provided to mount the antenna. To ensure a safe, reliable, and
long-standing installation, you must use all four screws to mount
the antenna.
Tools and Equipment Required
A mounting installation kit is shipped with the antenna and consists of the following hardware:
You may need the following tools and equipment, which are not provided.
Mounting on a Vertical Surface
Follow these steps to mount your antenna on a vertical surface. This procedure describes mounting the antenna on a drywall surface. If you are mounting the antenna on any other type of surface, your procedure may vary slightly.
Step 1 Determine the location where you will mount the
antenna.
Step 2 Use the antenna as a template to
mark the location of the four mounting holes.
Step 3 Use a drill and #29 drill bit to drill four holes at
the locations you marked in
Step 2.
Step 4 Start a plastic anchor into each hole.
Step 5 Use a mallet or small hammer to seat the anchors into
the wall.
Step 6 Align the antenna’s mounting holes with the
anchors.
Step 7 Start a #8 x 1¼ screw into each antenna mounting
hole.
Step 8 Use a Phillips screwdriver to secure the antenna to
the wall. Do not overtighten.
Step 9 Install the end caps into the antenna mounting
holes.
Step 10 Remove the yellow outdoor installation warning label
from the antenna radome.
Outdoor Installations
You can mount this antenna outdoors. If you mount the antenna outdoors, you must provide the mounting hardware. For outdoor installations, follow the instructions printed on the back of the antenna.
An orientation arrow is
printed on the back of the antenna that indicates the proper
orientation for the antenna for outdoor installations. You must
install the antenna so the arrow points up to prevent any water
intrusion and to provide a drain for any moisture that may
accumulate inside the antenna.
Suggested Cable
Cisco recommends a high-quality, low-loss cable for use with the antenna.
Note Coaxial cable loses
efficiency as the frequency increases, resulting in signal loss.
The cable should be kept as short as possible, because cable length
also determines the amount of signal loss (the longer the run, the
greater the loss).
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation.
To receive new and revised Cisco technical content directly to your desktop, you can subscribe to the What’s New in Cisco Product Documentation RSS feed. The RSS feeds are a free service.