Huawei RRU3203 Installation Manual page 18

Installing the RRU Cables
e
Closing the Cover Plate of the RRU Cabling Cavity
M4
1.4 N•m
[12.4 lbf•in.]
f
RRU+APM30H
Grounding the shielding layer
of the power cable:
a
DC RRU power cable
b
CPRI optical cable
The DC RRU power cable is connected to one of the RRU0 to RRU5 terminals of the PDU.
Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer in the power
cable clip, and then connect the PGND cable on the clip to the nearest grounding bolt on the side of the cabinet.
RRU1
DC RRU
power
cable
The screws on the cover plate should
be tightened until the fastening torque is
1.4 N·m [12.4 lbf•in.].
Tighten the screws on the cover plate
of the cabling cavity in the sequence
shown in the figure.
Metal Shielding layer
(25 mm [1 in.])
17
PGND cable