Sagem 4450E 2.4.Power Distribution System, 2.4.1.Overview, 2.4.2.Functional Features

SAGEM 3P@C

Table 2-7Status definitions of the LED indicators on the front panel of ADUC

LED	Identific	Color	Status	Description
	ation
ADUC	RUN	Green	On	The system is powered on
running			Off	The system is powered off or
status				abnormal
indicator			Flashing	The ADUC operates normally
	ALM	Red	Off	The ADUC operates normally
			ON	ADUC alarm

2.4.Power Distribution System

2.4.1.Overview

The DC distribution unit of 3P@C 4450E adopts the -48 V DC power supply. It is 4U high and is fixed to the upper part of the equipment rack rear. The -48 V DC input power is divided into 4 tributaries whose outputs are controlled by air switches separately. Their connection relations are shown in Figure 2-19:

Figure 2-19 Connection relations

2.4.2.Functional Features

Input requirements

1.-48 V single input.

2.-48 V input range: -36 ~ -72 V DC.

3.-48 V total input power: 3,300 W. Output requirements

1.The -48 V power is output to 4 channels that are led out by wiring terminals and controlled by air switches.

2.The rated current of the air switch is 32 A.

3P@C Installation Manual

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