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The antenna is DC grounded. However, Cisco recommends that you install
Note
lightning-protection devices in your system. See the Installation Instructions for Cisco
Aironet Lightning Arrestors. This document is available on the World Wide Web at the
following URL:
http://www.cisco.com/en/US/docs/wireless/lightning_arrestor/installation/guide/hslar.htm
l
Changing the Polarization
You can change the antenna polarization to horizontal or vertical. The antenna ships in the
verticalpolarization. You will need a 5/32-in (4 mm) hex allen wrench and a small standard screw driver
to perform this task. Follow these steps to change to the horizontal mode:
Step 1
Use a 5/32-in (4 mm) hex allen wrench to remove the 4 cap screws from the base of the antenna.
Step 2
Rotate the antenna so that the arrow labelled H-POL is pointing up. The two covered drain holes will be
on the bottom of the antenna radome and the two uncovered drain holes will be on the side.
Step 3
Use a small standard screw driver to remove the plugs from the drain holes on the bottom of the radome
Step 4
Re-install the plugs in the drain holes on the side of the radome.
Mounting on a Wall
A smooth, flat wall surface must be provided for the antenna mount. On rough wall surfaces such as brick
or stucco, use a smooth spacer (wood or metal plate) between the antenna mounting plate and the surface.
The intermediate spacer needs to be strong enough to prevent distortion of the antenna mounting plate
when you tighten the mounting hardware.
Follow these steps to mount the antenna on a flat surface:
Determine a location on the wall for mounting the antenna.
Step 1
Note
If the surface is rough, mount an intermediate spacer.
Step 2
Note
Position the mounting plate on the wall or intermediate spacer and use it as a template to locate and mark
Step 3
the antenna mounting holes.
Drill four holes at the locations you marked.
Step 4
Cisco Aironet 10-dBi Yagi Antenna (AIR-ANT2410Y-R)
8
The accuracy of the orientation is not as critical as it is for an outdoor installation, but the
antenna should still be oriented as closely as possible in the direction in which you intend to
communicate.
Be sure to use appropriate mounting hardware (anchors, toggle bolts, etc.) to mount the spacer
to the wall surface.
78-16122-01
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