Ac/Dc Power Equipment; Figure 5-8 Ac/Dc Power Equipment; Table 5-5 Ports On The Panel Of The Dcdu-03 - Huawei BBU3900 Hardware Description

BBU3900
Hardware Description

Table 5-5 Ports on the panel of the DCDU-03

Port
DC input
terminal
DC output
terminal

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

Figure 5-8 AC/DC power equipment

(1) AC power supply socket
(3) Wiring terminal for the transmission equipment
Issue 11 (2010-11-10)
Specification
Supports the
M6 2-hole OT
terminal
LOAD0 to
LOAD8 (from
left to right)
LOAD0 to
LOAD8
shows the AC/DC power equipment.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5 Auxiliary Devices of the BBU3900
Cross-Sectional Area
2
(Unit: mm )
l DCDU-03B: 25
l DCDU-03C: 25
2.5
(2) Wiring terminal for the RRU
(4) Power distribution control switch for the RRU
Remarks
When the DCDU-03 is used
in the transmission cabinet,
the cross-sectional area of
the input power cable is 4
2
mm .
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
5-11