Table 5-5 Ports on the panel of the DCDU-03
Port Specification Cross-Sectional Area
(Unit: mm
2
)
Remarks
DC input
terminal
Supports the
M6 2-hole OT
terminal
l DCDU-03B: 25
l DCDU-03C: 25
When the DCDU-03 is used
in the transmission cabinet,
the cross-sectional area of
the input power cable is 4
mm
2
.
DC output
terminal
LOAD0 to
LOAD8 (from
left to right)
LOAD0 to
LOAD8
2.5
l Three rows of wiring
terminals for outputs:
NEG(-), RTN(+), and
PGND, where, the last
three pairs of the PGND
wiring terminals support
the grounding of the M4
2-hole OT terminals,
which are marked in red
in Figure 5-7
l Supports the output
power cable with a
maximum cross-
sectional area of 6 mm
2
5.6 AC/DC Power Equipment
The AC/DC power equipment consists of the 4815 power system and 2-DC-input power
distribution box. The equipment is used to lead 220 V AC input power into the cabinet, convert
the 220 V AC power into -48 V DC power through the AC/DC PSUs, and supply -48 V DC
power to the components in the cabinet.
Appearance
Figure 5-8 shows the AC/DC power equipment.
Figure 5-8 AC/DC power equipment
(1) AC power supply socket
(2) Wiring terminal for the RRU
(3) Wiring terminal for the transmission equipment (4) Power distribution control switch for the RRU
BBU3900
Hardware Description 5 Auxiliary Devices of the BBU3900
Issue 11 (2010-11-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5-11
To Next Page
Loading...
