Huawei DBS3900 Installation Manual page 390

DBS3900 (Ver.B)
Installation Guide
Figure 11-9 Marking anchor points for the wall-mounting ears for the DCDU-03B
(1) Level
Step 3 Drill holes at the anchor points, and then install expansion bolt assemblies, as shown in
11-10.
Figure 11-10 Drilling holes and installing expansion bolt assemblies
(1) M6x60 bolt
1.
Issue 06 (2011-09-15)
(2) DCDU-03B
(2) Nut
Use a hammer drill with bit 8 to perpendicularly drill holes ranging from 50 mm to 60 mm
at the marked anchor points.
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11 Indoor Scenario with DC Power Supply (BBU Installed
(3) Wall
(3) Spring washer (4) Flat washer
on a Wall)
Figure
(5) Expansion tube
377