Site Preparation - Huawei OptiX RTN 980L V100 Quick Installation Manual

Site Preparation

Pole requirements
A pole must meet the following requirements:
 A pole must be able to withstand the total weight of the antenna, branching uniting, and RFU.
 The diameter of a pole is 114 mm ( 4.5 in.).
 The pole length varies depending on the branching unit and antenna installation mode. The flexible waveguide length
also varies accordingly. For details, see the table below.
Recommended Pole Length (≥)
Antenna Installation
Diameter Mode
4+0 8+0
0.9m (35.4 in) 单抱杆 1.6m(5.2 ft)
1.2m (3.9 ft) 单抱杆 1.9m (6.2 ft)
单抱杆 2.2m (7.2 ft)
1.8m (5.9 ft)
天线 2.0m (6.6 ft)
双抱杆
Branching
1.0m (3.3 ft)
Unit
单抱杆 2.8m (9.2 ft)
2.4m (7.8 ft)
天线 2.0m (6.6 ft)
双抱杆
Branching
1.0m (3.3 ft)
Unit
单抱杆 3.0m (9.9 ft)
3.0m (9.8 ft)
天线 2.7m (8.9 ft)
双抱杆
Branching
1.0m (3.3 ft)
Unit
单抱杆 4.0m (13.2 ft)
3.7m (12.1 ft)
天线 2.7m (8.9 ft)
双抱杆
Branching
1.0m (3.3 ft)
Unit
1. It is recommended that you preferentially select a single-pole installation mode.
2. If two poles are used, the pole positions vary according to onsite environment, and flexible waveguide lengths must be determined according to
site survey. Flexible waveguide lengths provided in this table are recommended values.
3. The table above shows the minimum pole length required in different installation modes. It is recommended that the pole length selection
criteria be simplified as follows:
 If the minimum pole length required is less than or equal to 1.0 m (3.3 ft), select a 1.0 m (3.3 ft) pole.
 If the minimum pole length required is greater than 1.0 m (3.3 ft) and less than or equal to 2.0 m (6.6 ft), select a 2.0 m (6.6 ft) pole.
 If the minimum pole length required is greater than 2.0 m (6.6 ft) and less than or equal to 2.5 m (8.2 ft), select a 2.5 (8.2 ft) m pole.
 If the minimum pole length required is greater than 2.5 m (8.2 ft) and less than or equal to 3.0 m (9.9 ft), select a 3.0 m (9.9 ft) pole.
 If the minimum pole length required is greater than 3.0 m (9.9 ft) and less than or equal to 3.7m (12.1 ft) , select a 3.7 m (12.1 ft) pole.
 If the minimum pole length required is greater than 3.7 m (12.1 ft) and less than or equal to 4.7 (15.4 ft) m, select a 4.7 m (15.4 ft) pole.
Flexible Waveguide Length
12+0 16+0 24+0 4+0/8+0
2.2m(7.2 ft) 3.2m (10.5 ft) 1.8m (5.9 ft)
2.5m (8.2 ft) 3.5m (11.5 ft) 1.8m (5.9 ft)
2.7m (8.9 2.9m (9.5
3.8m (12.5 ft) 1.8m (5.9 ft)
ft) ft)
2.0m (6.6 ft) 2.0m (6.6 ft)
1.8m (5.9
ft)+0.9 m (3.0
ft)
1.6m (5.2 ft) 2.2m (7.2 ft)
3.3m 3.5m
4.2m (13.8 ft) 1.8m (5.9 ft)
(10.8 ft) (11.5 ft)
2.0m (6.6 ft) 2.0m (6.6 ft)
1.8m (5.9 ft)+1.8m (5.9 ft)
1.6m (5.2 ft) 2.2m (7.2 ft)
1.8m (5.9
3.5m 3.7m
4.4m (14.4 ft) ft)+0.9 m (3.0
(11.5 ft) (12.1 ft)
ft)
2.7m (8.9 ft) 2.7m (8.9 ft)
1.8m (5.9 ft)+1.8m (5.9 ft)
1.6m (5.2 ft) 2.2m (7.2 ft)
1.8m (5.9
4.5m 4.7m
5.4m (17.7 ft) ft)+0.9 m (3.0
(14.8 ft) (15.4 ft)
ft)
2.7m (8.9 ft) 2.7m (8.9 ft)
1.8m (5.9 ft)+1.8m (5.9 ft)
1.6m (5.2 ft) 2.2m (7.2 ft)
 When installing a branching unit and an antenna onto one pole, adjust the distance (h2) between the branching unit
and antenna based on the antenna diameter to ensure that the branching unit does not block the antenna during
antenna alignment.
 If three BUs need to be installed on a pole, the spacing between the upper and lower BUs must be greater than or
equal to 0.3 m. The actual spacing can be adjusted based on the length of the flexible waveguide.
 If the antenna is far from the branching unit, connect them using two flexible waveguides. Install a spacer between
the two flexible waveguides.
 Branching units are cascaded using 1.8 m (5.9 ft )flexible waveguides.
12+0/16+0/
24+0
One-pole installation
1.8m (5.9
ft)+0.9 m (3.0
ft)
1.8m (5.9
ft)+1.8m (5.9
ft)
1.8m (5.9
ft)+0.9 m (3.0
ft)
1.8m (5.9
ft)+1.8m (5.9
ft)
1.8m (5.9
ft)+1.8m (5.9
ft)
Wind resistance requirements
 The following table describes the wind resistance requirements for a pole after a branching unit and an antenna are
installed onto it.
 At a 30 m (99 ft)/s or lower wind speed, an antenna must not rotate beyond one-third of the antenna's half-power
angle.
Antenna Operating Wind
Diameter Speed
0.9m (35.4 in)
200 km (656168 ft)/h
1.2m (3.9 ft)
3
h3
120mm (4.7
in)<h1<180mm (7.1 in)
h2
Survival Wind Antenna
Speed Diameter
1.8m (5.9 ft)
2.4m (7.8 ft)
250 km (820210 ft)/h
3.0m (9.8 ft)
3.7m (12.1 ft)
Two-pole installation
Flexible
waveguid
e
1.8 m
(5.9
ft)
flexible
wavegui
de
Space
r
Flexible
waveguid
e
Operating Wind Survival Wind
Speed Speed
200 km
(656168 ft)/h
200 km
(656168 ft)/h
110km
(360892 ft)/h