Huawei DBS3900 Installation Manual page 277

DBS3900 (Ver.B)
Installation Guide
Step 3 Route the cable by referring to
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 8-7
Table 8-7 Specifications of RRU power cables
Cable
RRU power
cable
RRU power
cable
Issue 06 (2011-09-15)
Figure 8-62 Installing a BBU power cable
lists the specifications of RRU power cables when a DCDU-03B supplies power.
RTN(+)
wire
NEG(-)
wire
Shield layer
RTN(+)
wire
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8 Outdoor Scenario with DC Power Supply (BBU Installed
8.5.1 Cabling Requirements, and then use cable ties to bind the
One End
OT terminals bent by
2
90° [M4, 3.3 mm (12
AWG)]
OT terminals bent by
2
90° [M4, 3.3 mm (12
AWG)]
OT terminals bent by
90° [M4]
OT terminals bent by
2
90° (M4, 4 mm )
in a +24 V DC APM30H)
The Other End
OT terminal [M4, 3.3
2
mm (12 AWG)]
OT terminal [M4, 3.3
2
mm (12 AWG)]
OT terminal (M4, 4
2
mm )
Remarks
North
American
standard
Black
North
American
standard
Blue
Heat shrink
tubing
Black
European
standard
Brown
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