Huawei DBU50B-N12A1 Quick Guide

1
Issue: 05
Date: 2020-02-29
Copyright © Huawei Technologies Co., Ltd. 2020. All rights reserved.
1
Overview
PSU Indicator
Color
Status
Meaning
Run indicator
Green
Off
The PSU has no power input (no AC input and no battery input
)
Steady on
Start / Self
-check / Load (instantaneous status during startup or upgrade)
Blinking slowly (0.5 Hz)
The PSU communicating with the host
properly
Blinking fast (4 Hz)
The PSU is not communicating with the host
properly
Fault indicator
Red
Off
The PSU is
proper
Steady on
The PSU is faulty: Rectifier Fault/Monitoring Address Conflict/Monitoring Unit Fault
Blinking slowly (0.5 Hz)
An alarm that can be cleared is generated on the PSU: Rectifier Protection/Power off/
Communication Failure/Rectifier Power Failure/Parallel Fail/AC
Overvoltage/AC Undervoltage
Power supply unit (PSU):
DPU40D-N06A3 (≈ 7.5 kg)
DBU20B-N12A3 (≈ 20 kg)
DBU50B-N12A1 (≈ 26 kg)
Installation
Scenario
Installation
Method
Max.
Capacity/Layer
Max. System
Configuration
Small pole
Side
mounting
2 PSUs +2 lithium
batteries (Install
the first battery
exactly on the pole,
the second battery
on its left side, or
two PSUs on its
right side.)
4 DC PSUs (DPU40D)
+ 8 lithium batteries
(
DBU20B/DBU50B)
Small pole,
wall,
large pole,
channel steel,
angle steel
Flush
mounting
1 PSU + 1 lithium
battery or 2 PSUs
Lithium
Battery
Indicator
Color
Status
Meaning
Run indicator
(RUN)
Green
Off
The lithium battery has no power input or is
faulty
Steady on
Board startup / self
-check / loading / activation / board power-on when no software is loaded
Blinking slowly (0.5 Hz)
The lithium battery is communicating properly with monitoring
equipment
Blinking fast (4 Hz)
The lithium battery fails to communicate with monitoring
equipment
Alarm
indicator (ALM)
Red
Off
The lithium battery is
proper
Steady on
The lithium battery has alarms that cannot be cleared: Board Hardware Fault/Heater
Fault/Electrochemical cell fault/Duplicate address
Blinking slowly (0.5 Hz)
The lithium battery has alarms that can be cleared: Discharge Overcurrent Protection/Charge
Overcurrent
Protection/High Temperature protection/Low Temperature Protection/Abnormal
shutdown/Charge Overcurrent Protection/Discharge Overcurrent Protection
DPU40D-N06A3, DBU20B-N12A3, and DBU50B-N12A1 Distributed
Power Quick Guide
2
Installation Scenarios
If the system
configuration
exceeds the
maximum
capacity/layer,
install the
modules on
different layers.
There are two pole-mounting scenarios. In the large pole scenario, the pole diameter is 114 mm to 400 mm. In the small pole scenario, the pole
diameter is 60 mm to 114 mm. Select an appropriate pole based on site requirements. The following uses the small pole scenario as an
example.
NOTE
•
If multiple PSUs are configured, they can be cascaded by connecting BAT and LOAD ports or by interconnecting LOAD ports. It is
recommended that DC loads be equally distributed on the PSUs.
•
This section uses a maximum of two lithium batteries as an example.
(Unit: mm)
Lithium
battery:
(Unit: mm)

Huawei DBU50B-N12A1 Specifications

General

Model	DBU50B-N12A1
Category	Power Supply
Input Voltage	100-240V AC
Input Frequency	50/60Hz
Output Voltage	12V DC
Output Current	4.17A
Output Power	50W
Storage Temperature	-40°C to +70°C
Weight	200g
Efficiency	85%