Alcatel Canada 24T28A01D22C 7390 24 GHz Co-Pol RBS User Manual BS Manual pages 41 to 45

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Document ID	157044
Application ID	wq8UdXTEg1hq8u1HcpcHtg==
Document Description	BS Manual pages 41 to 45
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	119.56kB (1494488 bits)
Date Submitted	2001-06-28 00:00:00
Date Available	2001-08-24 00:00:00
Creation Date	2001-06-27 12:20:54
Producing Software	Acrobat Distiller 4.05 for Windows
Document Lastmod	2001-06-27 12:21:14
Document Title	BS Manual pages 41 to 45

Figure 13 – Dimensions of the RBS flat unit
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3.3.2
Installation and orientation of the mechanical system 9900UXI102
VERTICALITY OF THE BEARING: ± 0.5 ° FOR THE POLE OR TUBE.
Considerations
– Installation can be carried out on an existing or newly installed tube or pole.
– The external diameter of the tube or pole is 114 mm in standard configuration.
– The mechanical assembly is supplied complete, mechanically assembled, with screw fastenings
kit and ground terminals.
Note: other tube diameters may be used depending on the loads to be supported: minimum diameter
76 mm and maximum 114; for this, please consult us.
Grower washer
"Top" marker
Flat washer
Nut
 Brackets
Casting
M6 x (7) screw
Figure 14 – Installation of the pole mounting 9900UXI102 with RBS cube
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Grower washer
Flat washer
Nut
Brackets
Casting
M6 x (7) screw
Figure 15 – Installation of the pole mounting 9900UXI102 with RBS flat
IMPORTANT: YOU MUST DEFINE THE POSITION OF THE EQUIPMENT RESPECT TO
THE PIPE (RIGHT OR LEFT SIDE) BEFORE INSTALLING.
Note: the coarse horizontal alignement is done during the installation of the pole mounting.
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3.3.3
Installation rules for multi-RBS configurations
3.3.3.1
Main configuration (1+0)
For installation configurations containing several RBSs, imperatively apply the following rules to ensure
efficient radio transmissions:
– Position the antenna to ensure best clearance; installation as near as possible to the corners of
the building or pylon is therefore strongly recommended. To avoid interference with the building
the antenna should not be too low: vertical clearance must be a view angle of at least ± 20° from
the antenna axis.
THE 90° ANTENNA COVERAGE OF EACH ANTENNA MUST BE CLEAR OF OBSTACLES.
FROM ANTENNA AXIS : HORIZONTAL CLEARANCE : ± 60°, VERTICAL CLEARANCE ± 20°
– For an installation involving initially less than 4 RBSs, select the location of the first RBSs leaving
space for other RBSs that may be added later in the event of extension to the installation.
– Several configurations are possible depending on the site and the number of radios; the installation should be the best compromise possible between: number of masts/radio performance. If the
different configurations possible - in the case of four radios to be installed on a building - are considered, the configuration giving the best compromise corresponds to figure 16, where 2 masts
have been installed with 2 RBSs per mast.
– However, it is allowable to install up to 4 RBS, equipped with the standard 90°/15 dBi antenna, on
the same mast (90° angle between each sector, see Figure 19 – Example of multi-RBS configuration: 4 RBS on the same mast (not advisable)). This configuration can’t be upgraded to the 1+1
configuration. We strongly recommend to use 2 different tubes to allow 1+1 extension.
– In the case of use of several RBSs equipped with standard antennas on the same mast, the installation restrictions are as follows:
•
the lowest radio must avoid the highest point of the building (obey the 20° minimum clearance
angle specified above),
•
the radios must be stacked at the same distance from each other, the minimum distance
between two consecutive antenna axes being 0.5 m (see Figure 16 – Clearances for adjacent
sectors).
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Clearances
Antenna Main Lobe
Dimensions are in millimeters
Figure 16 – Clearances for adjacent sectors
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Multi-RBS configuration examples in the case of 4 RBS installation:
Side view
Top view
Figure 17 – Example of multi-RBS configuration: 4 masts with 1 RBS per mast
Side view
Top view
Figure 18 – Example of multi-RBS configuration: 2 masts with 2 RBS per mast (recommended)
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