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DBS3900 LampSite
Installation Guide

9 Installing a pRRU3907 or pRRU3916

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

182

9.3.2 Installing a pRRU on a Wall

This section describes the procedure and precautions for installing a pRRU on a wall.

Context

The wall for installing pRRUs must meet the following requirements:



The wall must be able to bear a weight four times heavier than the pRRU's weight.



Expansion bolts must be tightened to 30 N·m (265.52 lbf·in.) to ensure that the bolt
assemblies work properly and the wall remains intact.



Do not stand a pRRU upright because the RF ports cannot support the weight of the
pRRU.



Place a foam pad or cardboard under a pRRU to protect the pRRU housing from damage
during the installation.

Procedure

Step 1 Determine a position for installing the pRRU on a wall, use a level to verify that the

marking-off template is placed horizontally, and then use a marker to mark anchor points, as
shown in Figure 9-9.

Figure 9-9

Marking anchor points

(1) Level

(2) Tapped hole

(3) Marker