User Manual

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56/302 Issue 01 - April 2001 - Draft 04 3CC12424AAAA TQ BJA 01

3.3.6.5 Alignment adjustment procedure

Figure 32 – Pole mounting 9900UXI102

Stages

1. Horizontal position

: using a control system (graduated level or inclinometer, Figure 33 – Checking

antenna positioning) positioned on the straight part of the antenna, ensure that it is perfectly

horizontal (tilt 0°).

2. Coarse alignement around the pipe

: make a bearing alignment in the direction intended by the radio

planners (compass, "TopoChaix", etc.) see Figure 30 – Azimutal alignement of antenn a.

3. Fine alignement

(see Figure 32 – Pole mounting 9900UXI102): using the 8 mm Allen key. Slightly

loosen the 3 screws ref. 1 and the 4 screws ref. 2, just enough to allow movements of the different

parts of the pole mounting and to ensure the precision of the fine alignement. Then, fine tune the

elevation and azimuthal settings with the 2 turnbuckles ref. 3 & 4 and the 16 mm flat wrench.

4. End of alignement

: tighten the 3 screws ref. 1 and the 4 screws ref. 2, to lock the assembly in

position, with a torque 3 mdaN ± 10%.

3.3.6.6 Checking the alignement of antenna

Check the bearing and elevation of the antenna once the assembly has been firmly secured. If a shift is

noted, repeat the adjustement(s) in question.

Refer to the documentation "Installation and Pointing Procedure for an RBS with a Built-in 15 dBi

Sectoral Antenna" - Ref. 3CC12087Axxx .

Note: Checking must be done with both inclinometer and compass.

4 screws azimutal tightening

Azimuthal turnuckle

Elevation turnuckle

3 screws elevation tightening









Summary of content (5 pages)

PAGE 1
3.3.6.5 Alignment adjustment procedure 4 screws azimutal tightening 3 screws elevation tightening Azimuthal turnuckle Elevation turnuckle Figure 32 – Pole mounting 9900UXI102 Stages 1. Horizontal position: using a control system (graduated level or inclinometer, Figure 33 – Checking antenna positioning) positioned on the straight part of the antenna, ensure that it is perfectly horizontal (tilt 0°). 2.
PAGE 2
Figure 33 – Checking antenna positioning 3.3.7 Grounding of the outdoor equipment Grounding of the outdoor equipment consists of: – connecting the grounding of the RBS Unit with the pole-mounting grounding – connecting the coupled RBS unit and pole-mounting grounding to the earthing system. Considerations – For grounding the RBS unit, a green/yellow cable with insulating sheath must be used. The minimum cross-section of the conducting wire is 16 mm2 .
PAGE 3
.4 Installation of the link between RBS and DBS Considerations – The electrical link between RBS unit and DBS rack of the Base Station is made of one single coaxial cable per T/R (Figure 35 – : RBS / DBS connection). This cable, using double-shielding, is the ET 390998 type or coaxial cable LD F4-50A (see Appendix 5 – Correspondence between commercial codes and industrial codes relating to the BS). USE THE ET 390998 OR LDF4-50A CABLE, IF YOU USE OTHER CABLE, PLEASE CONTACT ALCATEL.
PAGE 4
Note: avoid an over long parallel run between RBS/DBS coaxial link and electrical cables. DO NOT OVERTIGHTEN THE CABLE TIE ON THE CABLE; THIS COULD CAUSE DEFORMATION OF THE DIELECTRIC AND SUBSEQUENT LOSS OF PERFORMANCE. 5. Note the length of the cable installed. This information will be entered into the database when the equipment is commissioned using the configuration software (cf. § 4.5.7 RBS). Note: the accuracy required by the configuration software is ± 10%.
PAGE 5
3.5 Base Station equipment installation Considerations – The rack containing the DBS sub-rack assembly and DC/DC PSUs is for indoor installation. – The 7390BS indoor rack will be positioned according to user needs and technical constraints (e.g., respect of minimum distances, connections layout, RBS/DBS connection accessibility, power supply). – The power supply is to be connected after installation of the 7390BS indoor rack, at the time of its commissioning (cf.