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1 Overview
1.1 Introduction
The DCPS is a box-type power system that provides power for 48 V DC communications equipment. It uses 50
A rectifiers and provides a maximum output current of 200 A.
1.2
Model Number Description
DCPS stands for DC Power System
1.3 Features
The DCPS has the following features:
Wide voltage range of 85 V AC to 300 V AC
Comprehensive battery management
Network application over a fast Ethernet (FE) port and an RS485/RS232 port
Communication such as the Simple Network Management Protocol (SNMP) and
Hypertext Transfer Protocol Secure (HTTPS) to enable remote management and
unattended working.
Remote software upgrade.
Liquid crystal display (LCD) for display and operations
Web user interface (Web UI) for display and operations
Display in multiple optional languages
Hot swapping of rectifiers and the DCSC
Rectifier power factor up to 0.99
1.4 Work
Principles
AC power enters rectifiers through the AC power distribution unit (DCD). The rectifiers convert the AC power
input into 48 V DC power output, which is directed by the DC DCD 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 DCSC monitors the operating status of each component in the power system in real time and performs
appropriate intelligent control. When detecting a fault, the DCSC generates an alarm.
Figure 1 – Conceptual diagram
