Huawei AP Series Quick Start Manual page 20

Installing the AP
Only qualified professional personnel can install antennas. An AP can only be equipped with the
antennas delivered with it.
 Installing outdoor antennas
Two types of outdoor antennas are available: directional outdoor antenna and omnidirectional outdoor
antenna. Omnidirectional antennas can be directly installed on APs. The following are the procedures for
installing directional and omnidirectional outdoor antennas.
1. Perform the following steps to install a directional outdoor antenna:
(1) Weld the lightning rod on the top of the antenna pole.
(2) Install the antenna pole on a parapet or concrete bed on the roof of the building.
(3) Use a 40 mm x 4 mm flat steel to connect the antenna pole to an earth mat.
(4) Secure the directional outdoor antenna on the pole with an antenna support.
Keep the pole vertical with the ground during the installation. (See the figure below for how a directional
outdoor antenna is installed on a pole.)
 If roof of the building is surrounded by parapets of no less than 1.2 m high, fix the pole on a parapet with
expansion screws, and then fix the directional outdoor antenna on the pole with an antenna support.
 If roof of the building is surrounded by parapets of less than 1.2 m high, fix the pole on a parapet and on
the ground with expansion screws, and then fix the directional outdoor antenna on the pole with an antenna
support.
If there is no parapets around the roof, fix the pole on the ground or a concrete bed with expansion
screws and steel wires, and then fix the directional outdoor antenna on the pole with an antenna support.
Directional
outdoor antenna
Flat steel
Parapet
Height of parapet > 1200 mm
2. Perform the following steps to install a omnidirectional outdoor antenna:
Pay attention to the following points when installing an omnidirectional antenna:
(1) An omnidirectional outdoor must be installed on a pole with a diameter of 30 mm to 50 mm and the
thickness must be at least 2.5 mm. A 50 mm diameter pole made of round steel is usually used.
(2) The top of pole must be aligned with the hose clamp at the bottom of the antenna, as show in the figure 6.
(3) After the installation is complete, the antenna must high enough to provide sufficient signal coverage, and
the top of the antenna must be within the 45
(4) Do no weld a lightning rod directly on the antenna pole (because there should not be metal subjects
within 1 m around an omnidirectional antenna). Instead, install an independent lightning rod between two
omnidirectional antenna poles. Adjust the height of the lightning rod to ensure that the omnidirectional
antennas are covered in the protection angle.
Lightning rod
Antenna support
Directional
outdoor antenna
Antenna pole
Parapet
Connect to earth mat
Lightning rod
Antenna support
Antenna pole
Flat steel
Connect to earth mat
Height of parapet <1200 mm
o
protection angle of the lighting rod.
19
Directional
outdoor antenna
Steel wire
No parapet
Lightning rod
Antenna support
Antenna pole
Concrete bed