Huawei DBS3900 Installation Manual page 73

RRU3260
Installation Guide
It is recommended that the mounting brackets be installed at a height of 1200 mm (47.24 in.) to 1600
mm (62.99 in.) above the ground.
Step 2 Install the RU mounting brackets, as shown in
Figure 8-31 Installing the RU mounting brackets
Verify that the arrows on the mounting brackets are pointing up.
1.
2.
Step 3 Use a 16 mm (0.67 in.) M10 torque wrench to tighten the nuts to 40 N· m (354.03 lbf· in.) so
that the mounting brackets are secured onto the angle steel, as shown in
Issue 05 (2014-06-30)
Figure 8-30 Distance between the mounting brackets and the ground
Adjust the position of the nut and remove one end of the square-neck bolt from the slot
on the auxiliary bracket.
Slide the mounting brackets onto the angle steel horizontally and insert the square-neck
bolt into the slot.
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Figure 8-31.
8 Installing the RU
Figure 8-32.
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