Figure 3-1
PGND cable
(1) OT terminal (16 mm
2
, M6)
NOTE
l
When an AC surge protection box is used, a PGND cable connects the surge protection box and the
ground bar of the RRU to achieve the equipotential connection between the AC surge protection box
and the RRU. The other PGND cable connects the surge protection box and a ground bar to ensure the
reliable grounding of the AC surge protection box.
l
One end of the PGND cable that is connected to the RRU or AC surge protection box has an M6 OT
terminal, and the other end needs to be assembled with an OT terminal depending on the external
ground bar on site.
OT terminals need to be added on site. You can determine the color of the cable and whether to
use 2-hole terminals according to local standards.
shows the 2-hole OT terminal.
Figure 3-2
2-hole OT terminal
3.3 Power Cable for the DC RRU
The RRU power cable is the -48 V DC shielded power cable, which is used to feed the -48 V
DC power into the RRU.
Exterior
The power cable has an easy power receptacle (pressfit type) connector at one end and bare wires
at the other end, which must be added with a corresponding terminal based on the external power
equipment, as shown in
Figure 3-3
Power cable for the DC RRU
(1) RTN(+)
(2) NEG(-)
RRU3908 V2
Hardware Description
3 RRU Cables
Issue 02 (2010-10-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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