Huawei USG9500 Series Hardware Manual page 307

HUAWEI USG9500 Series
Hardware Guide
Item
DC output
voltage
Table 2-9 Device indicators
Item
PEM
FAN
MPU/SRU
Issue 03 (2017-12-15)
Color Status Description
- The normal voltage
ranges from -43.2 V
DC to -57 V DC
Indicator Color
RUN Green
ALM Red
STATUS Green
Red
RUN Green
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 Hardware Installation
Possible Exception Causes
-
Status Description
If the indicator is steady green, the
PEM has normal output.
Alarm indicator. If the indicator is
steady red:
l The lightning protection circuit of
the PEM is faulty.
l There is no power input.
If the indicator blinks once every two
seconds (0.5 Hz), the FAN is working
properly.
If the indicator blinks once every two
seconds (0.5 Hz), the fan module or
PEM is faulty, or not all PEMs are
powered on.
From the time the MPU/SRU is
powered on until it is registered, the
indicator status changes from off, blink
once every 250 ms (4 Hz), off, steady
on, and then to blink once every two
seconds (0.5 Hz).
After the MPU/SRU is registered, the
MPU/SRU is working properly if the
indicator blinks at 0.5 Hz.
NOTE
Possible causes for an off indicator include:
l The BootROM is damaged.
l The MPU cannot be powered on.
Possible causes for the indicator blinking
quickly include:
l The CF card is faulty.
l The other control chips on the
MPU/SRU are faulty, preventing the
MPU/SRU from initializing.
295