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DBS3900 LampSite 
Installation Guide 
7 Installing a pRRU3901 
 
Issue 08 (2016-05-30) 
Huawei Proprietary and Confidential         
Copyright © Huawei Technologies Co., Ltd. 
70 
 
Figure 7-5
 Mounting bracket specifications 
 
 
7.4.2 Installing a pRRU3901 on a Wall 
This section describes how to install a pRRU3901 on an indoor wall. If a wall indoors has 
adequate load bearing capacity and installation space, it is good practice to install the 
pRRU3901 on the wall. If the wall does not have adequate load bearing capacity, choose an 
installation mode based on site requirements. 
Context 
 
 
This section describes only the wall-mounted installation in which mounting kits are directly 
installed on the wall without auxiliary devices. The procedure for other wall-mounted 
installation modes is similar. 
Procedure 
Step 1  Determine the position for installing the pRRU3901 based on the construction blueprint and 
the clearance requirements. 
 
For details about the clearance requirements, see 7.1.3 Space Requirements. 
Step 2  Place the mounting bracket in the installation position against the wall. Then, level the 
mounting bracket and use a marker to mark two anchor points. See Figure 7-6.