Indicator
Color
Description
ALM
Red
Power failure indicator. If the indicator is steady on, it
indicates the following:
l
The lightning protection link of the power module has
failed.
l
The power modules does not have input power.
lists the technical parameters of the PEM.
Table 3-6
Technical parameters of the DC PEM
Item
Technical Parameter
Type
PEMB
Dimensions (Width x Depth x
Height)
58 mm x 115 mm x 220 mm
Weight
1.1 kg
Number of power inputs
1
Input voltage range
-72 V DC to -38 V DC
Input rated voltage
-48 V/-60 V
Maximum input current
70 A
Output voltage
-72 V DC to -38 V DC
Output current
70 A
Rated current of the air-break 70 A (Each PEM corresponds to an air switch).
3.6.2 DC Power Supply System
This section describes the architecture of the DC power supply system.
The E8000E-X8 has a DC power supply system, four 70 A PEMs work in 2+2 backup mode.
shows details of the DC power supply system.
Two -48 V power inputs are joined on the board.
After the low-frequency filtering, the two -48 V power inputs for fans. Two separated RTN
inputs are joined on the board inside the fan module.
NOTE
, each DC power input contains one -48 V power input and one RTN input. Two separated
RTN inputs are joined on the board.
HUAWEI Eudemon8000E Firewall
Hardware Description
3 E8000E-X8 Chassis Overview
Issue 01 (2012-11-07)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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