Huawei CX600-X2-M Series User Manual

l Protection against output overvoltage
l Protection against input undervoltage
l Protection against overtemperature
l Protection against short circuit
l Alarm generation
2.2.2 Diagram of the Power Supply Architecture
A power supply system consists of two power modules working in 1+1 redundancy mode.
Figure 2-9 shows the diagram of the power supply architecture. Each power module provides
a 48 V power input and a 3.3 V power input to the boards. The two 48 V power inputs are
integrated in the boards and the two 3.3 V power inputs are integrated in the backplane and then
input to the boards. Each power module provides a 48 V power input to the fans. The two 48 V
power inputs are integrated in the backplane and then input to the fans.
Figure 2-9 Diagram of the power supply architecture
PEM A
PEM B
FAN
MPU/NPU/PIC
48V-fan48V-A-fan
48V-B-fan 48V-A
48V-B
48V-A
48V-B
3.3V-A
3.3V-B 3.3V
Backplane
3.3V
2.2.3 DC Power Supply System
The device uses two PSUs, which work in 1+1 backup mode, for power supply. Figure 2-10
shows the outline of a PSU.
Figure 2-10 Outline of a PSU
HUAWEI CX600-X1-M/CX600-X2-M Series Metro
Services Platform
Hardware Description
2 CX600-X2-M8 Hardware Description
Issue 03 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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Huawei CX600-X2-M Series Specifications

General

Brand	Huawei
Model	CX600-X2-M Series
Category	Network Hardware
Language	English