Huawei DBS3900 Installation Manual page 97

DBS3900 (ICR)
Installation Guide
1.
2.
Step 2 Install the BBU into the corresponding slot in the IMB03. Then tighten the four M6x16 screws
on the mounting ears to 3 N·m (26.55 lbf·in.), as shown in
Figure 13-3 Installing the BBU
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Issue 12 (2015-04-30)
Remove the four M4 screws from the mounting ear on each side of the BBU.
Install the mounting ears reversely and tighten the four M4 screws on each of the mounting
ears, with a torque of 1.2 N·m (10.62 lbf·in.).
Figure 13-2 Installing mounting ears reversely
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13 Installing Components in the IMB03
Figure 13-3.
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