Huawei DPU40D-N06A3 - Page 27

DPU40D-N06A3, DBU20B-N12A3, and
DBU50B-N12A1 Distributed Power System
User Manual
3 Components
Issue 04 (2020-02-29)
Copyright © Huawei Technologies Co., Ltd.
21
Indicator
Color
Status
Description
Blinking at long
intervals (0.5 Hz)
Rectifier Protection/Rectifier Shutdown/
Communication Failure/Rectifier Power
Failure/Parallel Fail/AC Overvoltage
Protection/AC Undervoltage Protection
Ports
Figure 3-2 PSU ports
(1) Ground screw
(2) Power input port
(3) Load output port 1
(4) Load output port 2
(5) Load output port 3
(6) Battery output port
(7) COM_DIN port
(8) COM_ALM port
Power Ports
Table 3-2 Power port description
Port
Fuse Specifications
Function
PWR
1 × 16 A quick-connector (excluding
the fuse)
AC or DC input; connects to
the power supply.
LOAD1, LOAD2,
LOAD3
3 × 40 A quick-connector (with
replaceable fuses)
DC output; connect to loads.
BAT
1 × 40 A quick-connector (excluding
the fuse)
Battery port; connects to the
lithium battery.
Communications Ports
Table 3-3 Communications port description
Communications
Port
Communications
Parameter
Communications
Protocol
Function