Huawei DBS3900 Installation Manual page 135

DBS3900 LampSite
Installation Guide
This section describes how to mount a combiner on a wall as an example. The actual
installation mode depends on actual requirements.
Procedure
Step 1 Use a marker to mark two anchor points according to inter-hole spacing, as shown in
8-40.
Figure 8-40 Marking anchor points
Step 2 Use a hammer drill with φ6 bore to drill holes at the marked anchor points, as shown in
Figure
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.
Figure 8-41 Drilling holes and installing expansion bolts
Step 3 Place the Extender in the corresponding position and use an M3 Phillips screwdriver to torque
the screws to 1 N•m, as shown in
Issue 06 (2015-10-30)
8-41. Use a vacuum cleaner to clean the dust inside and around the holes and measure
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Figure 8-42.
8 Installing a pRRU3902
Figure
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