Alvarion BreezeACCESS II CX, System Manual

Page: 64 / 78

Chapter 3 - Commissioning
Aligning the SU’s Antenna
The SNR bar display is located on t
The 8 green LEDs are used for indi he bottom panel of the outdoor unit.
cating the quality of the received
ignal. The higher is the number of green LEDs that are on, the better
of the received signal. This section describes how to align the
ante
s
the quality
nna using the SNR bar display.
NOTE
Antenna alignment using the SNR bar display is possible only after the SU is associated
with an Access Unit. The associated Access Unit must be operational and the basic
SU’s parameters must be correctly configured. If not, the unit will not be able to
sync
ed on received hronize with the Access Unit. As the SNR measurement is perform
frames, its results are meaningless unless the SU is associated with an Access Unit.
1. Align the antenna, which is integrated into the front side of the
radio unit, by pointing it in the general direction of the Base Station.
erify that the pow unit is .
3. Verify that the WLN f the unit is On , indicating that the unit
associated with an Access Unit. If the WLN
that the basic parameters are correctly config ill
not associated with the AU, improve the qual ink by
changing the direction of the antenna or by placing the antenna at a
rnate n.
4. Ensure that the front of the antenna is always facing the Base
Station. However, in certain conditions, such as when the line of site
on d
using a reflected si nte
the Base Station.
until the maximum SNR reading is achieved,
reen LED is on: If you encounter prolonged
inating the minimum required number of green
LEDs, try to improve the reception quality by placing the antenna at
a higher point or in an alternate location.
6. Secure the unit firmly to the pole.
2. V er indication of the On
K LED o
is K LED is Off , check
ured. If the unit is st
ity of the l
higher or alte locatio
to the Base Stati is hampered, better recep
gnal. In this case, the a
tion may be achieve
nna is not always
directed toward
5. Rotate the antenna
where at least 1 g
difficulty in illum
To align the SU’s antenna:
Cell Extender System Manual
3-14