DBS3900 LampSite
Installation Guide
9 Installing a pRRU3907 or pRRU3916
Issue 08 (2016-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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
