Huawei DBS3900 Installation Manual page 460

DBS3900 (Ver.B)
Installation Guide
Step 7 Align the mounting ears at the lower part of the IMB03 with the anchor holes, and then use a
torque wrench to tighten the bolts, as shown in
Figure 13-19 Tightening the bolts at the lower part of the IMB03
(1) Spring washer 10
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Installing the IMB03 on the Wall (Back-Mounted)
This section describes the installation procedure of IMB03 back-mounted on the wall.
Context
The diameters of the holes on the mounting ears for attaching a back plate on a wall are 14 mm.
The horizontal inter-hole spacing of the two upper mounting ears is 128 mm, and the vertical
spacing between the holes of the upper and lower mounting ears is 611 mm.
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13 Indoor Scenario (BBU Installed in an IMB03)
Figure 13-19.
(2) Flat washer 10
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