YDI EtherAnt II, User Manual

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EtherAnt II User’s Manual
Version 3.3 Page 4 March 2003
Section 2
Installation
Safety Warning
This antenna/transmitter device must be fixed-mounted on outdoor
permanent structures with a separation distance of at least 2 meters
(6.56 feet) from all persons. Users and installers must adhere to the
antenna installation instructions and transmitter operating conditions in
order to comply with the FCC’s RF exposure requirements.
CAUTION
2.1 Locating the EtherAnt II
The most important aspect of setting up the EtherAnt II is its location and aiming. For maximum range
(up to several miles), it must have clear, unobstructed line of site (LOS) between it and the base station
antenna or the other wireless device it is talking to. The EtherAnt II should be installed outdoors, but can
be located in a window if necessary. However, for maximum range and the strongest signal, the EtherAnt
II must “see” the base station antenna in order to be connected. If they do not have this clear line of
sight, you will likely not get a reliable, long-range wireless connection. For indoor applications, the range
will depend on the walls and other obstacles between the EtherAnt II and the base station. The only way
to accurately determine your coverage area is to put up the EtherAnt II in the best locations available and
run some tests (see Section 2.5, Aiming Antenna and Checking Signal Strength).
NOTE : It is strongly recommended that you configure and test the unit prior to deploying it in the
field. Set up a “mini-network” that resembles your actual configuration as close as possible.
By using such a mock-up, troubleshooting potential problems will be much easier than if you
already installed the equipment in the field. Read through this entire Section 2 to understand
how to install the hardware. To configure the EtherAnt II, read Section 3.
2.2 Mounting the EtherAnt II
The antenna can be mounted either vertically or horizontally polarized using the hardware included with
the unit. The label located on the back of the antenna contains an arrow indicating the antenna’s
polarization. Please note that both ends of the link must use the same polarization. It can be mounted to
a mast or pipe as shown in Figure 2.1 or to a flat surface such as a wall as shown in Figure 2.2. Note that
most omni antennas are vertically polarized and if the EtherAnt II is aimed at one, it must be installed
vertically polarized, i.e., with the polarization arrow up and down.
When installed outdoors, it is very important that the round connector plugged on the antenna be properly
waterproofed. Ensure that a high quality all-weather resistant electrical tape and/or other water sealant
method, such as Permagum or equivalent, is utilized.
Silicon sealants are not recommended since
they are hard to work with, do not ensure a 100% waterproofing of the connectors and are difficult to
remove, if ever necessary.
2.3 DC Power Injector
The Cat 5 DC Power Injector is not in a waterproof enclosure and must be protected from the weather. It
can be permanently mounted to a surface using the double stick tape found on the back of it.