User's Manual

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30/136 3CC10875AAAA TQ BJA 02

Issue 02 -January, 10 2000

3.4 – Installation of outdoor equipment

Considerations

– Outdoor equipment installation involves:

S installation of the mechanical system (also called “pole–mounting” system) which supports the

RBS radio and facilitates antenna alignment,

S installation of the RBS radio assembly and its antenna,

S installation of the connection cable connecting the RBS radio to the DBS rack.

– Outdoor equipment installation should garantee a precise and fixed antenna pointing.

– The RBS location and its antenna orientation should arise from a planning analysis in order to optimize

the sector coverage. These elements are essential for the installation staff.

– Antenna orientation is only carried out according to geometric criterion (using compass and

inclinometer).

– All the outdoor equipment assemblies are designed for installation without any particular protection.

However, the following recommendations should be respected:

S make sure that the reception metallic structure has a perfect stability,

S avoid installation below bird nesting areas,

S avoid attaching to chimneys which give off fat deposits, dust and other aerosols which are liable

to be deposited on the equipment,

S avoid proximity to sources of heat,

S avoid placing the equipment in proximity to corrosive gas outputs,

S avoid placing the equipment below roof run–offs not equipped with guttering (high risk of

microwave short–circuit),

S avoid attaching to a structure prone to vibrations,

S avoid to cross the antenna field of action.

– The type of installation used:

S on a tube or pole, using threaded U–bolts and nuts.

Nota : The tube selected should be sufficiently rigid to resist vibrations that may give rise to antenna

misalignment.

S Wall mounting possible.