install flexi wall

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9 Mounting the stand-alone BTS on thewall

9.1 Mounting the plinth on a wall

Purpose

A plinth is required for mounting the modules on a wall.

Before you start

Check that the plinth adapter mechanics are installed as instructed in the

Fixing adapter mechanics to plinth section.

If installing additional plinths one upon the other, the distance between theupper mounting screw holes in first and second plinth must be 550 mm

(21.7 in.) minimum.

Summary

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# Nokia Siemens Networks 37 (97)

Mounting the stand-alone BTS on the wall


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Figure 14. Mounting the plinth on a wall

2

5

6 tighten the screws

3

4

1

DN7037067

185 mm

482,5

mm

38 (97) # Nokia Siemens Networks DN70305645Issue 3-0 en

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Installing Flexi WCDMA BTS Modules for Stack, Wall, and Pole

Configurations


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Steps

1. Mark the mounting screw locations on the wall and drill the

holes for the screws.

2. Fix the upper mounting screws to the wall, lift the plinth on thewall and fit it to the mounting screws.

Check that the plinth is level.

3. Tighten the upper mounting screws.

4. Insert the lower mounting screws.

5. Tighten the lower mounting screws.

6. Make sure that the plinth is not twisted.

When the plinth is in a correct position, tighten the three screws inthe lower bracket of the adapter mechanics.

7. In case you are installing more than one plinth, repeat steps 1-6

for each plinth.

Note that the required space between the plinths is 100 mm.

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Figure 15. Mounting a second plinth on the wall

Further information

Next, ground the plinth to the site main ground. For more information, see

Grounding principle of the stand-alone BTS .

DN7047057

185 mm (7.3 in)

600mm

(23.6

in)

482,5mm

(19.0

in)

The distance between the twoplinths must be 100 mm (3.9 in) 185 mm (7.3 in)


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Configurations


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9.2 Mounting modules on a wall

Purpose

The stand-alone BTS can be installed on a wall. The maximum number of

modules per plinth is two.

Note

To meet the earthquake requirement Telcordia GR-63-CORE and the

vibrational requirements for Earthquake Zone 4, the four module fixing

screws between the module core and the module casing must betightened to 5 Nm.

Before you start

Check that:

. the plinth is installed as instructed. See Mounting the plinth on a wall

for plinth installation instructions.

. the plinth is grounded.

. there is one plinth per two modules.

If you are going to install Flexi Power Module (FPMA), it should be

installed on the same plinth as the System Module. For more informationon FPMA installation, see Installing Flexi Power Module (FPMA).

The recommended module installation order is illustrated in the followingfigure.

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Figure 16. Recommended module installation order

RF Module

RF Module

RF Module

Plinth

Wall

DN7055446

System Module

Power Module(optional)


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Configurations


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Summary

Caution

Excess torsion damages the casings. In wall and pole installation, do

not install more than two modules per plinth.

Caution

Incorrect installation may lead to damage to the modules. The modules

must be installed with the front panels facing left or right. Do not installthe modules with the front panels facing up or down.

DN70360702

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Figure 17. Mounting the modules on the wall

5

1

3

DN7037079

Line up thelocating marks

Line up the

locating marks

6

2 4

8

7

9


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Configurations


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Steps

1. Align the holes on the first module's bottom with the fixing

studs on the plinth.

Tip

Line up the locating marks on the side of the module to help aligning the

holes with fixing studs.

2. Push the module back until it stops.

3. Attach the module casing to the plinth with two screws.

Secure with thread locking compound.

4. Connect the module grounding cable between the module front

panel and the plinth.

See Grounding principle of the stand-alone BTS for moreinformation.

5. Align the holes on the second module's bottom with the fixingstuds on the first module.

6. Push the module back until it stops.

7. Attach the module casings to each other with two screws.


8. Connect the module grounding cable between the module front

panel and the plinth.

9. Attach the fixing plates across the module casings on both

sides of the modules and fix with six screws and spring

washers.


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Figure 18. Installing fixing plates for the casing

10. Repeat the steps above to install the remaining modules to a

separate plinth or plinths.

One plinth can have two modules installed. A configuration of one

System Module and three RF Modules therefore requires twoplinths.

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Expected outcome

The following figure illustrates one example of the basic configuration of

one System Module and three RF Modules installed on the wall. The

installation in the figure is a right-hand installation, but the BTS can also be

installed as a left-hand installation.

Tip

Right-hand installation is recommended.

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