Lithium Battery (Dbu20B-N12A3/Dbu50B-N12A1) - Huawei DPU40D-N06A3 User Manual

DPU40D-N06A3, DBU20B-N12A3, and
DBU50B-N12A1 Distributed Power System
User Manual
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3.2 Lithium Battery (DBU20B-N12A3/DBU50B-N12A1)

Functions
The lithium battery supplies backup power to communications equipment when the PSU has
no power input, thereby ensuring reliable power supply for service operation.
Issue 04 (2020-02-29)
Signal Name
ALM2+
ALM2-
ALM3+
ALM3-
RS485_TX+
RS485_TX-
RS485_RX+
RS485_RX-
ALM4+
ALM4-
Reserved
CANH
CANL
Copyright © Huawei Technologies Co., Ltd.
Description
A PSU is faulty
A Lithium battery is faulty
Northbound transmits data over RS485 positive
Northbound transmits data over RS485 negative
Northbound receives data over RS485 positive
Northbound receives data over RS485 negative
A PSU or a lithium battery generates a
recoverable alarm
Reserved
CAN data transmission and reception H
CAN data transmission and reception L
3 Components
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