LED
Colo
r
Nor
mal
Stat
us
Abn
orm
al
Stat
us
Exception Cause
Suggestion
The input fuse is
damaged.
Replace the rectifier.
Blink
ing
Being queried
manually.
Exit the query state.
Protection
LED
Yell
ow
off
on
Overtemperature
pre-alarm.
Ensure that the vent of the
rectifier is unblocked.
An AC input
undervoltage or
overvoltage occurs.
Ensure that the AC input
voltage is normal.
Blink
ing
Communication
between the
rectifier and an
external side is
interrupted.
Clean the golden finger
connection. If the protection
LED is still blinking, rectify
the fault on the external
module.
Fault LED
Red
off
on
Output overvoltage
occurs.
Remove the rectifier and
install it again. If there is still
no output, replace the
rectifier.
No output exists
because of a fault
inside the rectifier.
Replace the rectifier.
Blink
ing
Software is being
loaded.
The LED stops blinking when
the loading is complete.
1.3 Heat Dissipation System
The heat dissipation system is responsible for the heat dissipation of the entire device. Heat
generated by the boards is dissipated through the heat dissipation system. In this manner, the
temperatures of the components on the boards are controlled within a normal range, enabling
the boards to work stably. The heat dissipation system is composed of a fan frame, an air intake
vent, an air exhaust vent, and an air channel. All the fans in the fan frame work simultaneously,
and their rotation speeds can be adjusted by area. When one fan fails, the heat dissipation system
can still allow the device to work at an ambient temperature of 40°C (104°F) for a short period.
The temperature sensors, which are located on the air exhaust vent and boards, monitor the
temperatures of the components on the boards and adjust the fan rotation speeds according to
the commands delivered by the MPU to control the board temperatures.
HUAWEI CX600-X1-M/CX600-X2-M Series Metro
Services Platform
Hardware Description
1 CX600-X1-M4 Hardware Description
Issue 03 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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