Sagem 4450E - Manual (Page 37)

SAGEM 3P@C
3P@C Installation Manual
Page 2-14 Reproduction and communication in any form prohibited without the written permission of SAGEM SA
Table 2-7Status definitions of the LED indicators on the front panel of ADUC
LED Identific
ation Color Status Description
On The system is powered on
Off The system is powered off or
abnormal
RUN Green
Flashing The ADUC operates normally
Off The ADUC operates normally
ADUC
running
status
indicator
ALM Red
ON ADUC alarm
2.4. 2.4. 2.4. 2.4. Power Distribution System
2.4.1. 2.4.1. 2.4.1. 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. 2.4.2. 2.4.2. 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.