Huawei DBS3900 Installation Manual page 124

DBS3900 LampSite
Installation Guide
Figure 8-31 Installing the U-shaped metal plate onto the steel hangers
(1) Nuts
(4) Steel hangers
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 8-32 Installing the mounting bracket
Issue 06 (2015-10-30)
(2) Spring washers
(5) U-shaped metal plate
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8 Installing a pRRU3902
(3) Flat washers
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Figure 8-32.
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