Type
Board Name
Silkscreen Print
PIC
MD8A-CWDM
FIC
Auxiliary Flexible Interface Card
with 4-Port 100Base-RJ45
(FIC,Supporting 1588v2)
AUX/4xFE-A
3.2 Power Supply System
3.2.1 Architecture of the Power Supply System
The device supports DC power input of -48 V DC or -60 V DC and AC power input of 110 V
AC or 220 V AC.
The device is powered by two PSUs, which work in 1+1 backup mode. When one PSU fails or
is removed, the other one can still supply adequate power for the device. The PSUs are installed
in the two top slots of the chassis and supply power for the MPUs, NPU, PICs, and fan module.
The following measures are taken to ensure that the PSUs can supply stable and safe power for
the system:
l
Protection against output overcurrent
l
Protection against output overvoltage
l
Protection against input undervoltage
l
Protection against overtemperature
l
Protection against short circuit
l
Alarm generation
3.2.2 Diagram of the Power Supply Architecture
A power supply system consists of two power modules working in 1+1 redundancy mode.
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.
HUAWEI CX600-X1-M/CX600-X2-M Series Metro
Services Platform
Hardware Description
3 CX600-X2-M16 Hardware Description
Issue 03 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
69