Installation and Operation Instructions

Telrad Networks Ltd. BreezeAIR Installation Guide
Page 9 of 29
4) Connect the Outdoor-to-Indoor shielded CAT5 cable to the Outdoor unit and route it
to the selected location of the PoE. Assemble the enclosed connector on the cable.
5) Mount the Indoor POE and connect:
Outdoor-to-Indoor cable to the ‘PWR LAN-OUT port.
CAT5 Ethernet cable (from network) to the ‘LAN-IN’ port.
AC Input to the power (100-240VAC).
6) Align the antenna and secure the unit by fastening the mounting screws.
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Select the best location for the outdoor unit using the following guidelines:
The outdoor unit can be pole or wall mounted.
The location should allow easy access to the unit for installation.
When using an external antenna, the unit should be installed as near as possible to
the antenna.
Make sure clear Line of Sight between the sites.
Path of clearest propagation
A propagation path is the path that signals traverse between the antennas of any two
bridges. The “linebetween two antenna sites is an imaginary straight line, which may be
drawn between the two antennas. Any obstacles in the path of the “line” degrade the
propagation path. The best propagation path is, therefore, a clear line of sight with good
clearance between the “line” and any physical obstacle.
Physical obstacles
Any physical object in the path between MU and SU may cause signal attenuation.
Common obstructions are buildings, trees and hills located in the path between the two
sites. Install outdoor antennas high enough to avoid any obstacles, which may block the
signal.
Minimal path loss
Path loss is determined by several factors:
Distance between sites Path loss is lower when distance between sites is
shorter.
Clearance Path loss is minimized when there is a clear line of sight. The number,
location, and size of obstacles determine their contribution to path loss.
Antenna height Path loss is lower when antennas are positioned higher. Antenna
height is the distance from the imaginary line connecting the antennas at the two
sites to “ground” level. “Ground” level in an open area is the actual ground. In dense
urban areas, “ground level is the average height of the buildings between the
antenna sites.
Minimizing path loss maximizes link’s signal strength, throughput and availability.