Huawei DBS3900 Installation Manual page 120

DBS3900 LampSite
Installation Guide
Installation
Mode
Installing the
pRRU on a
wall using a
clamp
through an
attachment
plate
For details,
see 8.3.5
Installing a
pRRU on a
Plate.
Installing the
pRRU on a
wall using a
plate on a
metal wall
Installing on a ceiling
When a pRRU is installed on a ceiling, installation modes vary with the quality of the ceiling,
as shown in Table 8-3.
Table 8-3 Ceiling-mounted suggestion
Installation
Mode
Installing the
pRRU on a
ceiling by
drilling holes
For details,
see 8.3.3
Installing a
pRRU on a
Ceiling.
Issue 08 (2016-05-30)
Requirements
 The wall can bear
a load at least four
times the weight
of a pRRU.
 The thickness of
the wall is less
than 45 mm.
The wall cannot bear
a load at least four
times the weight of
the pRRU. For
example, EPS walls,
MDF walls, or walls
cannot be drilled.
Requirements
 The ceiling, such
as a concrete
ceiling, can bear a
load at least four
times the weight
of the pRRU.

The screws must
be tightened with
a torque of 1.5
N· m. This ensures
the screws work
properly and the
ceiling remains
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8 Installing a pRRU3902 or pRRU3911 or
Mounting Brackets
1. Plate
2. Clamp
3. Bolt (M4x35)
4. Bolt (M4x60)
The plate is prepared by
customers.
Mounting Brackets
1. Plate
2. Screw (M3.5 x 35)
3. Plastic expansion
sleeve
4. Flat washer
pRRU3911+WIFI
Installation
Diagram
Installation
Diagram
113