Antennas For Indoor Applications - Black Box LW0050A Manual

PRO 11 SERIES WIRELESS ETHERNET
Site Selection for Access Points
When positioning Access Points, take into account the following additional
considerations.
H
EIGHT
Install the Access Point at least 5 feet (1.5 m) above the floor, clear of any high
office partitions or tall pieces of furniture in the coverage area. The Access Point
can be placed on a high shelf, or can be attached to the ceiling or a wall using a
mounting bracket.
C L
ENTRAL OCATION
Install the Access Point in a central location in the intended coverage area. Good
positions are:
• In the center of a large room.
• In the center of a corridor.
• At the intersection of two corridors.
Many modern buildings have partitions constructed of metal or containing metal
components. We recommend that you install the Access Points on the corridor
ceilings. The radio waves propagated by the Pro 11 LAN are reflected along the
metal partitions and enter the offices through the doors or glass sections.
5.2.2 A
NTENNAS FOR
For most indoor applications, the best choice is the standard unit equipped with its
integrated 2-dBi antennas. The units are small, easy to install, and cover a large
area.
In some installations, you need to install the unit and antenna separately. In such
instances, use the LW0055A Access Point with a 6-dBi Omnidirectional Antenna
with ≈3-ft. (0.9-m) RG58 cable.
The 8.5-dBi Unidirectional Antenna is also useful in indoor applications. It is very
small and easily wall-mounted, but its radiation pattern is limited (75°).
We recommend that, for indoor applications, you use two antennas per unit to
take advantage of the diversity gain of the system.
Antenna Diversity
In applications where no multipath propagation is expected, a single antenna is
88
I
NDOOR APPLICATIONS