Figure 14-16 Installing a trapezoidal rack
(1) Adapting piece (2) Trapezoidal rack (3) Metal pole
(4) Bolt (5) Spring washer (6) Flat washer
(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.
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 Figure 14-18.
DBS3900 (Ver.B)
Installation Guide
14 Indoor Scenario with DC Power Supply (BBU Installed
Indoors and RRU Powered Outdoors)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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