KPWL-0300 User's Manual
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8.5 Signal Connectability
The frequency band that wireless LANs use has strong rectilinear propagation characteristics (for both the 2.4 GHz
and 5 GHz bands). As a result, the two wireless LAN devices should be positioned where they can have an
unobstructed line-of-sight, free of obstacles, of each other.
For the KPWL-0300s, there are two circuits; the access circuits that communicate with wireless LAN terminals and
the wireless backhaul circuits that communicate between the KPWL-0300s. Therefore, it is necessary to have
unobstructed line-of-sight for access circuits "between KPWL-0300s and wireless LAN terminals" as well as
"between KPWL-0300s themselves".
Additionally, the wireless quality fluctuates due to a variety of reasons, such as airflow, the presence of a reflective
object and its reflectance (absorbance), and the existence of distance and obstacles. Keeping this in mind, it can be
said that it is preferable to position the machine in a high place that is not easily affected by the movement of people
or objects.
Also, signals characteristically are reflected by objects, such as metals, for which it is easy for electricity to pass
through, and go through objects, such as wood and glass, for which it is difficult for electricity to pass through. As a
result, although it is difficult for obstacles like glass to be a barrier, objects like the rebar in reinforced concreate are
barriers to signals.
8.6 Antennas
KPWL-0300 has a total of 8 antennas: 4 antennas for 2.4/5 GHz (antennas for access circuits) and 4 antennas for 5
GHz (antennas for relay circuits). The antenna connectors that connect to each are different.
• Connect the antennas for 2.4/5 GHz to the 4 antenna connector locations on the right and left sides of the main
unit.
• Connect the antennas for 5 GHz to the 4 antenna connector locations on the bottom of the main unit.
Also check the descriptions near the connectors for the antennas for the type of antenna.
* The shapes of the antennas are slightly different.
Unobstructed
line of sight
Obstructed line
of sight
Unobstructed
line of sight
Obstructed
line of sight