Huawei DBS3900 Installation Manual page 107

DBS3900 LampSite
Installation Guide
Figure 8-9 Installing a pRRU3902 on a wall
Step 6 Optional: Use T20 with hole screwdriver to lock the protection screw on the attachment
plate. See
The protection screw protects the pRRU3902 from being removed and must be locked if
required.
Figure 8-10 Locking the protection screw
(1) M4 threaded hole
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Issue 06 (2015-10-30)
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.
Figure 8-10.
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(2) Hole for self-tapping screws
8 Installing a pRRU3902
(3) Quincunx screw
101