Meru Networks Inc. OAP433E User Manual
Figure 28, SAmple physical layout
6.6
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 OAP433e 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 OAP433e must be
considered.
addition, local regulations may limit or prevent construction of a high radio mast or
tower. If your OAP433e 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 OAP433e must be
considered.
•
Be sure there are no other radio antennas within 2 m (6 ft.) of the
OAP433e.
OAP433e.
•
Place the OAP433e away from power and telephone lines.
•
Avoid placing the OAP433e too close to any metallic, reflective surfaces,
such as roof-installed air-conditioning equipment, tinted windows, wire
fences, or water pipes.
such as roof-installed air-conditioning equipment, tinted windows, wire
fences, or water pipes.
6.7
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 2.4 or 5 GHz spectrums.
Always use a channel frequency that is furthest away from another signal on the
spectrum.
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 2.4 or 5 GHz spectrums.
Always use a channel frequency that is furthest away from another signal on the
spectrum.
6.8
Weather Conditions
Take into account any extreme weather conditions that are known to affect your
location. Consider these factors:
•
Temperature — The OAP433e is tested for normal operation in
temperatures from - 40°F to 140°F. Operating in temperatures outside of
this range may cause the unit to fail.
temperatures from - 40°F to 140°F. Operating in temperatures outside of
this range may cause the unit to fail.
•
Wind Velocity — The OAP433e can operate in winds up to 44 m/s and
survive higher wind speeds up to 66 m/s. You must consider the known
maximum wind velocity and direction at the site and be sure that any
supporting structure, such as a pole, mast, or tower, is built to withstand
this force.
survive higher wind speeds up to 66 m/s. You must consider the known
maximum wind velocity and direction at the site and be sure that any
supporting structure, such as a pole, mast, or tower, is built to withstand
this force.
•
Lightning — You should make sure that the unit, any supporting structure,
and cables are all properly grounded. Additional protection using lightning
rods, lightning arrestors, or surge suppressors may also be employed in
order to protect against lightning strikes on the antennas. Contact Meru
Sales for more information regarding this equipment.
and cables are all properly grounded. Additional protection using lightning
rods, lightning arrestors, or surge suppressors may also be employed in
order to protect against lightning strikes on the antennas. Contact Meru
Sales for more information regarding this equipment.
•
Rain — The OAP433e is weatherproofed against rain. Also, prolonged
heavy rain has no significant effect on the radio signal. However, it is
recommended to apply weatherproof sealing tape around the Ethernet
port and antenna connectors for extra protection. If moisture enters a
connector, it may cause a degradation in performance or even a
complete failure of the link.
heavy rain has no significant effect on the radio signal. However, it is
recommended to apply weatherproof sealing tape around the Ethernet
port and antenna connectors for extra protection. If moisture enters a
connector, it may cause a degradation in performance or even a
complete failure of the link.