Huawei DBS3900 Installation Manual page 69

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Installation Guide
Step 2 Place the plate in the installation position against the ceiling. Then, level the plate and mark the
two anchor points using a marker, as shown in
Figure 6-11 Anchor points of the pRRU3901 installation kits (unit: mm)
(1) Ceiling
To prevent inhalation or eye contact with dust, take adequate preventive measures when drilling
holes.
Step 3 Use a hammer drill with a φ 8 bit to drill holes at the marked anchor points as shown in as shown
in
Figure
distance between them. If they are inaccurately positioned, re-measure and re-drill the holes.
Then, use a rubber mallet to push the two plastic expansion sleeve into the holes.
Issue 08 (2015-01-15)
NOTE
For pRRU3901 installation space requirements, see Space Requirements.
(2) Plate
CAUTION
6-12. Use the cleaner to clean the dust inside and around the holes and measure the
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Figure
6-11.
(3) Anchor point of the bolt
6 Installing a pRRU3901
64

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