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Table 2-7Status definitions of the LED indicators on the front panel of ADUC
LED
ADUC
running
status
indicator
2.4. Power Distribution System
2.4.
2.4.
2.4.
2.4.1. Overview
2.4.1.
2.4.1.
2.4.1.
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.
2.4.2. Functional Features
2.4.2.
2.4.2.
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
Page 2-14
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Identific
Color
Status
ation
RUN
Green
On
Off
Flashing
ALM
Red
Off
ON
Description
The system is powered on
The system is powered off or
abnormal
The ADUC operates normally
The ADUC operates normally
ADUC alarm
SAGEM 3P@C
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