Brand: HUAWEI
Category: Other
Document Type: Manual
Language: EN
Manual for DPU40D-N06A3, DBU20B-N12A3, and DBU50B-N12A1
Uploaded: Nov. 21, 2025, 6:40 p.m.
Manual Publish Date: 2020-02-29
Warranty Information
Refer to the contract for warranty terms. Information provided is 'AS IS'.
The DPU40D-N06A3 converts AC or HVDC power into stable 48 V DC power. The lithium battery supplies backup power to communications equipment. The system is designed for wireless base stations and supports online capacity expansion. It features modular hardware, fan-less design, and diverse installation scenarios.
Troubleshooting and error codes
| Alarm Type | Alarm |
|---|---|
| PSU fault | Rectifier Fault/Address Conflict/SMU Fault |
| Lithium battery fault | Board Hardware Fault/Heater Fault/Battery Cell N Fault/Address Conflict |
| Recoverable PSU Alarm | Rectifier Protection/Rectifier Shutdown/ Communication Failure/Rectifier Power Failure/Parallel Fail/AC Overvoltage/AC Undervoltage |
| Recoverable lithium battery Alarm | Discharge Overcurrent Protection/Charge Overcurrent Protection/High Temperature protection/Low Temperature Protection/Abnormal Close/Charge Overcurrent Protection/Discharge Overcurrent Protection |