Buffalo WLE-DA2 Manuale utente
www.buffalotech.com/wireless
User Manual
Antennas
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Table of Contents
Terminology ........................................................................3
Basic Antenna Info ............................................................4
Connecting the Antenna ....................................................5
Accessories............................................................................8
WLE-KG-VPA ........................................................................9
WLE-KG-VPB ........................................................................9
WLE-NDR ............................................................................10
WLE-DA2 ............................................................................11
WLE-HG-NDR ......................................................................12
WLE-MYG ..........................................................................13
WLE-HG-NDC ......................................................................14
WLE-HG-DYG......................................................................16
Technical Support ..............................................................18
Warranty ............................................................................19
FCC Compliance..................................................................20
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Terminology
Directional Antenna - Is an antenna that radiates a signal in
one direction using a tight beam pattern. These
antennas come in several styles; yagi, panel and
parabolic.
db (decibel) - A unit of measurement for Antenna strength.
The higher the db rating the higher the strength of
the antenna.
Cable Loss - The loss in signal strength (db) due to the length
of your antenna cable. The longer the cable, the
greater the signal loss.
Fresnel Zone - An elliptical area on either side of the straight
line of sight that must also be clear for a long-range
wireless signal to work.
Gain - Amount of wireless signal strength added to a
standard signal normally measured in db ’s.
MC Card Connector - Antenna connector type used on Buffalo
Technology routers/AP’s, adapter and indoor antenna
products.
N type connector - Antenna connector type used on Buffalo
Technology outdoor antenna’s and coaxial cable.
Omni-Directional Antenna - An Antenna that radiates a signal
in a 360 degree radius horizontally and a signal
vertically with a degree spread that is dependent on
the antenna’s elements.
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Basic Antenna Information
Wireless signals travel outward in an arc pattern from the
source. These radio frequencies lose significant signal strength
when traveling through walls, windows and other objects.
Materials like metal, stucco and thick concrete can actually
stop a wireless signal from passing through. Sometimes these
obstacles can be overcome by adding an antenna to your
wireless network.
Another issue is distance as the signal spreads outward from
the source it becomes dispersed and looses signal strength
and bandwidth. This is where an antenna helps the most in
increasing the overall signal and carrying it farther. An
average 8 dbi outdoor antenna can carry your signal up to 3/4
of a mile. Different Antennas have different signal patterns.
Signal range without external antenna Signal range with external antenna
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❶
❷
❸
❹
Locate the antenna connector sliding door on the
rear of the AirStation.
Slide the door down on the rear of the AirStation to
reveal the external antenna connector.
Note: On some AP's the door slides sideways.
Connect the antenna to the AirStation by plugging
the male MC Card connector on the antenna cable
to the female MC Card connector on the AirStation.
Push firmly into place to ensure a good connection.
Run the cable down the left side of the AirStation
and push behind the plastic tab to keep the antenna
from coming loose.
5
Connecting the Antenna
AirStation Routers/Access Points
Large Form Factor Access Points / Routers
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Connecting the Antenna
Access Points/Client Adapters
Small Form Factor Access Points / Client Adapters
Locate the rubber antenna connector plug on the rear of the
AirStation.
Remove the Rubber plug on the rear of the AirStation to reveal the
external antenna connector.
Note: On some AP's the door slides sideways.
Connect the antenna to the AirStation by plugging the male MC
Card connector on the antenna cable to the female MC Card
connector on the AirStation. Push firmly into place to ensure a good
connection.
Run the cable down the back of the AirStation.
❶
❷
❸
❹
Locate the rubber plug hiding the external MC Card antenna
connector on the top of the AirStation Notebook Adapter.
Pull the rubber plug to reveal the external antenna connector
Connect the antenna to the Notebook Adapter by plugging the male
MC Card connector on the antenna cable to the female MC Card
connector on the Notebook Adapter. Push firmly into place to
ensure a good connection.
NOTE: Client Cards with external antenna support vary but
installation remains the same.
❶
❷
❸
PCMCIA Client Adapters
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Connecting the Antenna
Client Adapter
Disconnect the rubber antenna from card.
Find the conversion coupler included with the card.
Attach the coupler to the card.
Connect the antenna to the card.
❶
❷
❸
❹
PCI Client Adapter
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Connecting the Antenna
WLE-HG-NDR / WLE-HG-NDC
To install the WLE-HG-DYG and the WLE-HG-NDC you
first slide the rubber boot provided over the coaxial
cable and then connect the coaxial cable to the
antenna as shown below.
You then use the included vinyl tape and wrap the
connection with it. See picture.
Next wrap the vinyl taped connection with the
electrical tape provided. These steps are to help ensure
the connection stays stable and provide water
proofing. Important thing to remember is to start
tapping from the bottom up so that each layer is
overlapping this will help keep water out of the
connection see image.
After you have wrapped the connection you slide the
boot from the previous step over the taping. It should
fit flush against the bottom of the connection base.
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Connecting the Antenna
WLE-HG-NDR / WLE-HG-NDC
Now connect the N-male to MC-card pigtail adapter to
the other end of the cable, as shown.
Now connect the MC-Card connector to your Buffalo
product.
If you are connecting this antenna outside a building
or enclosure and high on a pole you should include a
Lightning protector like the one shown below. Which
can be obtained from third party sources.
This device will connect between the antenna and the
coaxial cable you will then proceed with the other
steps as listed.
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Antenna Mounting Brackets
WLE-KG-VPA / WLE-KG-VPB
WLE-KG-VPA
WLE-KG-VPB
When mounting an external antenna it is important to pay attention to the location you are
installing it. Please be aware that small incremental changes in elevation either up, down or side
to side can make significant changes in the signal quality. Several adjustments may be required
to achieve the best signal. You should test mount all antennas to check their signal patterns
before making their mounting permanent.
Antenna Manual-bw.qxd 2/16/05 10:24 AM Page 10
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