Emerson 48330 user manual System Description, Abbreviation, Introduction, Features

Chapter 1 System Description 1

Chapter 1 System Description

1.1	Abbreviation
	AC	Alternate Current
	DC	Direct Current
	SCU	Standard Controller Unit
	BCU	Battery Connection Unit
	CSU	Central Supervision Unit
	HVSD	High Voltage Shutdown
	MCB	Miniature Circuit Breaker
	APFC	Active Power Factor Correction
	MFU	Multi-Function Unit
1.2	Introduction

The ACTURA Flex 48330 Power system consists of 50A rectifiers, Control Unit, Multi-Function Unit (MFU), rectifier shelf and BCU (optional).

The product is used in base station, small exchange station, satellite communication, data communication, and so on, with a strong adaptability to power network fluctuation.

This system is used as a power supply for telecom equipment with system nominal voltage of -48V and positive terminal earthed.

1.3 Features

The DC power system is easy-to-operate, easy-to-install and easy-to-maintain. Its main features are:

Rectifier uses APFC technology and therefore its PF is up to 0.99;

Wide AC input voltage range of 85~290V;

Rectifier efficiency is at least 90%;

Extra low EMI of rectifier and excellent EMC performance;

ACTURA Flex 48330 Power System User Manual