Huawei DBS3900 Installation Manual page 78

DBS3900 LampSite
Installation Guide
Figure 7-6 Anchor points on the pRRU3901 mounting bracket (unit: mm)
(1) Wall
To prevent inhalation or eye contact with dust, take adequate preventive measures when
drilling holes.
Step 3 Use a hammer drill with φ8 bore to drill holes at the marked anchor points, as shown in
Figure 7-7. Use a vacuum cleaner to clean the dust inside and around the holes and measure
the distance between them. If they are inaccurately positioned, re-measure and re-drill the
holes. Then, use a rubber mallet to hit a plastic expansion sleeve into each hole.
Issue 08 (2016-05-30)
(2) Mounting bracket
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7 Installing a pRRU3901
(3) Anchor point
71