User's Manual

OAP180 Hardware Installation Instructions 7 of 24
© 2007 Meru Networks, Inc.
Plan the Location
When you plan the OAP180 physical configuration, include the elements shown in this
drawing:
Figure 2: Sample Physical Layout
Radio Position Planning
Never construct a radio mast, pole, or tower near overhead power lines. In addition,
local regulations may limit or prevent construction of a high radio mast or tower. If
your OAP180 link requires a high radio mast or tower, consult a professional contractor
for advice. Once the required antenna height has been determined, other factors
affecting the precise position of the OAP180 must be considered.
z Be sure there are no other radio antennas within 2 m (6 ft) of the OAP180.
z Place the OAP180 away from power and telephone lines.
z Avoid placing the OAP180 too close to any metallic, reflective surfaces, such as roof-
installed air-conditioning equipment, tinted windows, wire fences, or water pipes.
Radio Interference
Avoiding radio interference is an important part of wireless planning. Interference is
caused by other radio transmissions using the same or an adjacent channel frequency.
You should first scan your proposed site using a spectrum analyzer to determine if
there are any strong radio signals using the 802.11a or 802.11bg channel frequencies.
Always use a channel frequency that is furthest away from another signal.
Weather Conditions
Take into account any extreme weather conditions that are known to affect your loca-
tion. Consider these factors:
z Temperature — The
OAP180 is tested for normal operation in temperatures from -
40°C to 140°C. Operating in temperatures outside of this range may cause the unit
to fail.