Huawei DBS3900 Installation Manual page 526

DBS3900 (Ver.B)
Installation Guide
Figure 14-16 Installing a trapezoidal rack
(1) Adapting piece
(4) Bolt
(7) Waterproof gasket
Step 2 Remove the two plastic screws that are near the back of the cabinet from the top of the cabinet,
as shown in
Figure 14-17 Removing plastic screws
Step 3 Install a fastening bar on the top of the cabinet, and then use a socket wrench to tighten the two
M12×30 bolts, as shown in
Issue 06 (2011-09-15)
Figure 14-17.
Figure
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14 Indoor Scenario with DC Power Supply (BBU Installed
(2) Trapezoidal rack
(5) Spring washer
14-18.
Indoors and RRU Powered Outdoors)
(3) Metal pole
(6) Flat washer
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