Huawei FusionDC1000A

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No. Silk Screen Port Name Description

9 EPO NO EPO port If the normally open (NO) signal

port is connected to the EPO_12V

port, emergency power-o (EPO)

is triggered.

12V

NC If the normally closed (NC) port

is disconnected from the EPO_12V

port, EPO is triggered.

12V

10 DI_1 Input dry

contact

Reserved

11 DI_2 Input dry

contact

Reserved

NO TICE

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 aect normal

charge and discharge of other lithium battery cabinets in the system.

Table 4-11 Port and pin denitions

Appearance

Pin COM Port RS485 Port FE Port

1 RS485_T+ RS485_T+ RJ_TX+

2 RS485_T– RS485_T– RJ_TX–

3 - - RJ_RX+

4 RS485_R+ RS485_R+ -

5 RS485_R– RS485_R– -

6 GND GND RJ_RX–

7 - - -

8 - - -

4.5.3 BCU

The BCU is swappable and supports power conversion, current equalization, and

BCU (intra-cabinet BMS) management.

● 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

FusionDC1000A Prefabricated All-in-One Data

Center

Product Description (IT Scenario) 4 Power Supply and Distribution System

Huawei FusionDC1000A - Bcu