Huawei Technologies Co. Ltd PRU11WIFI 用户手册

DBS3900 LampSite
Installation Guide

8 Installing a pRRU3902 or pRRU3911 or

pRRU3911+WIFI

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

142

(4) Steel hangers

(5) U-shaped metal plate

–

Step 4 Lead two bolts (M4x35) through the mounting bracket and the ceiling plate. Use a torque

screwdriver to torque the bolts to 1.4 N•m, as shown in Figure 8-34.

Figure 8-34

Installing the mounting bracket

If the screws cannot be tightened using a Phillips screwdriver, use a hex key or an electric screwdriver to
assist the installation.

Step 5 Fit the rotation axis on the pRRU into the hooks on the mounting bracket, and then push the

pRRU against the mounting bracket until a click is heard. See Figure 8-35.