Bcu - Huawei FusionDC1000A Product Description

FusionDC1000A Prefabricated All-in-One Data
Center
Product Description (IT Scenario)
No.
9
10
11
In a parallel lithium battery system, activating the EPO signal of a single lithium
battery cabinet triggers only EPO of this cabinet, and does not affect normal
charge and discharge of other lithium battery cabinets in the system.
Table 4-11 Port and pin definitions
Appearance

4.5.3 BCU

The BCU is swappable and supports power conversion, current equalization, and
BCU (intra-cabinet BMS) management.
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Issue 04 (2023-11-10)
Silk Screen
EPO NO
12V
NC
12V
DI_1
DI_2
NO TICE
Pin
1
2
3
4
5
6
7
8
Converts the power of battery strings. When the consistency between battery
strings is poor, the BCU controls the current balance between battery strings
through voltage boosting and balance adjustment to implement active
Copyright © Huawei Digital Power Technologies Co., Ltd.
4 Power Supply and Distribution System
Port Name Description
EPO port If the normally open (NO) signal
port is connected to the EPO_12V
port, emergency power-off (EPO)
is triggered.
If the normally closed (NC) port
is disconnected from the EPO_12V
port, EPO is triggered.
Input dry Reserved
contact
Input dry Reserved
contact
COM Port
RS485_T+
RS485_T–
-
RS485_R+
RS485_R–
GND
-
-
RS485 Port FE Port
RS485_T+ RJ_TX+
RS485_T– RJ_TX–
- RJ_RX+
RS485_R+ -
RS485_R– -
GND RJ_RX–
- -
- -
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