Huawei DBS3900 Installation Manual page 528

DBS3900 (Ver.B)
Installation Guide
Figure 14-20 Installing a cabinet
(1) Gasket with an oblong hole
Step 5 Lead the U-shaped piece through the holes on the fastening bar installed on the top of the cabinet,
as shown in
Issue 06 (2011-09-15)
Figure 14-21.
NOTE
When a cabinet is installed on a metal pole, grease must be applied. For details, see
Grease.
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14 Indoor Scenario with DC Power Supply (BBU Installed
Indoors and RRU Powered Outdoors)
14.8.3 Applying
515