Huawei DBS3900 - Page 208

Figure 7-67 Installing a BBU power cable
Step 3 Route the cable by referring to 7.5.1 Cabling Requirements, and then use cable ties to bind the
cable.
Step 4 Label the installed cables. For details, see Attaching an L-Shaped Label.
----End
Installing an RRU Power Cable
An RRU power cable feeds -48 V DC power into an RRU from a DCDU-03B.
Context
Table 7-7 lists the specifications of RRU power cables when a DCDU-03B supplies power.
Table 7-7 Specifications of RRU power cables
Cable
One End The Other End Remarks
RRU power
cable
RTN(+)
wire
OT terminals bent by
90° [M4, 3.3 mm
2
(12
AWG)]
OT terminal [M4, 3.3
mm
2
(12 AWG)]
North
American
standard
Black
NEG(-)
wire
OT terminals bent by
90° [M4, 3.3 mm
2
(12
AWG)]
OT terminal [M4, 3.3
mm
2
(12 AWG)]
North
American
standard
Blue
Shield layer OT terminals bent by
90° [M4]
Heat shrink
tubing
Black
RRU power
cable
RTN(+)
wire
OT terminals bent by
90° (M4, 4 mm
2
)
OT terminal (M4, 4
mm
2
)
European
standard
Brown
DBS3900 (Ver.B)
Installation Guide
7 Outdoor Scenario with DC Power Supply (BBU Installed
in a TMC11H)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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