Features; Working Principles - Huawei TP48200A-DT19D1 Telecom Power User Manual

TP48200A-DT19D1 Telecom Power
User Manual

2.2 Features

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2.3 Working Principles

Figure 2-2 shows the conceptual diagram. AC power enters rectifiers through the AC power
distribution unit (PDU). The rectifiers convert the AC power input into -48 V DC power
output, which is directed by the DC PDU to DC loads along different routes.
When the AC power is normal, rectifiers power DC loads and charge batteries. When the AC
power is absent, rectifiers stop working and batteries start to power loads. After the AC power
resumes, rectifiers power DC loads and charge batteries again.
The SMU monitors the operating status of each component in the power system in real time
and performs appropriate intelligent control. When detecting a fault, the SMU generates an
alarm. The SMU monitors and regulates the temperature control unit based on the temperature
measured by the temperature sensor to ensure the normal operating temperature for the
cabinet.
Issue 03 (2019-11-15)
Wide input voltage range of 85 V AC to 300 V AC
Comprehensive battery management
Comprehensive AC and DC surge protection design
One fast Ethernet (FE) port and one RS485/RS232 port for network connections
SNMP and HTTPS for communicating with HUAWEI Network Ecosystem (NetEco) and
third-party network management systems (NMSs), which ensures remote management
and unattended operation
Liquid crystal display (LCD) for display and buttons for user operations
Web user interface (WebUI) for user operations
Multiple display languages, such as English, Chinese, Spanish, Portuguese, Italian,
French, and Russian
Hot-swappable rectifiers and SMU
Rectifier power factor (PF) of 0.99
High-efficiency rectifier with a maximum efficiency of 96%
Copyright © Huawei Technologies Co., Ltd.
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