Huawei DBS3900 Installation Manual page 113

DBS3900 LampSite
Installation Guide
Issue 06 (2015-10-30)
NOTE
l The bolt used for installing the pRRU3902 on a suspended ceiling plate depends on the
plate thickness:
l The delivered bolt (M4x35) is used if the plate thickness is less than 25 mm.
l The delivered bolt (M4X60) is used if the plate thickness ranges from 25 mm to 45
mm.
l If the screws cannot be tightened using a Phillips screwdriver, use a hex key or an
electric screwdriver to assist the installation.
e. Fit the rotation axis on the pRRU3902 into the hooks on the mounting bracket, and
then push the pRRU3902 against the mounting bracket until a click is heard. See
Figure 8-18.
Figure 8-18 Installing a pRRU3902 on a plate
NOTE
l Before installing the pRRU3902, connect one end of the Ethernet cable to the CPRI_E0
port on pRRU3902.
l It is good practice to perform the installation from the side view to promptly align the
hooks with the rotation axis.
f. Use T20 with hole screwdriver to lock the protection screw on the attachment plate.
See Figure 8-19.
The protection screw protects the pRRU3902 from being removed and must be
locked if required.
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8 Installing a pRRU3902
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