Huawei DBS3900 User Manual

Cable One End The Other End Descriptio
n
RRU power
cable
RTN(+)
wire
OT terminal (M4, 4
mm
2
)
OT terminal (M4, 4
mm
2
)
European
standard
Brown
NEG(-)
wire
OT terminal (M4, 4
mm
2
)
OT terminal (M4, 4
mm
2
)
European
standard
Blue
RRU power
cable
RTN(+)
wire
OT terminal (M4, 4
mm
2
)
Easy power receptacle
(pressfit type)
connector
NEG(-)
wire
OT terminal (M4, 4
mm
2
)
NOTE
The colors and structures of cables vary according to countries and areas. If the cables are purchased locally,
the colors and structures of the cables may be different.
Procedure
Step 1 Prepare an RRU power cable.
1. Cut the cable to the required length based on the actual cable route.
2. Add OT terminals to the blue, black (or brown) wires and shield layer of the RRU power
cable at the power equipment (AC/DC) end, as shown in Adding OT Terminals to the DC
RRU Power Cable on the DCDU Side.
3. Add OT terminals or an easy power receptacle (pressfit type) connector to the other end of
the RRU power cable according to the type of power supply socket on the RRU.
l Add an OT terminal. For details, see the related RRU Installation Guide.
l Add an easy power receptacle (pressfit type) connector. For details, see the related RRU
Installation Guide.
Step 2 Install an RRU power cable, as shown in Figure 10-22.
1. Link the OT terminals on the blue and black (or brown) wires of the RRU power cable to
the wiring terminals labeled NEG(-) and RTN(+) on the PDU in the power equipment (AC/
DC) respectively.
NOTE
In the 220 V AC single-phase and 110 V AC dual-live-wire power supply scenario, only one MRRU
can be installed because the power supply capacity of the power equipment (AC/DC) is limited.
No surge protection is required for DC power supply. In this case, an RRU power cable can be used
for a distance of not greater than 5 m.
2. Connect the blue and black wires at the other end to the wiring terminals labeled NEG(-)
and RTN(+) in the cabling cavity of the RRU respectively.
DBS3900 (Ver.B)
Installation Guide
10 Outdoor Scenario with AC Power Supply (BBU Installed
in an OMB)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
348

Huawei DBS3900 Specifications

General

Brand	Huawei
Model	DBS3900
Category	Accessories
Language	English