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HUAWEI NE40E-X1 & NE40E-X2 Universal Service
Router
Hardware Description
Table 2-2 Slot layout of the NE40E-X2
Slot
3 to 6 and 9 to 12
7 and 8
1 and 2
13 and 14
15
NOTE
2.2 Power Supply System
2.2.1 Architecture of the Power Supply System
The device supports DC power input of -48 V DC or -60 V DC.
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
l
l
l
l
l
2.2.2 Diagram of the Power Supply Architecture
The two PSUs work in 1+1 backup mode.
-12 V power supplies are combined on the backplane, and then are directed to the MPU and
NPU. Two -48 V power supplies are input to the PICs, and then are combined on the PICs. Two
-48 V power supplies are combined on the backplane, and then are directed to the fan module.
Issue 02 (2011-09-10)
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A FIC refers to a sub-card on which every port has a rate of lower than 1 Gbit/s. A HIC refers to a sub-
card on which every port has a rate of at least 1 Gbit/s.
Protection against output overcurrent
Protection against output overvoltage
Protection against input undervoltage
Protection against overtemperature
Protection against short circuit
Alarm generation
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Remarks
For PICs. Slots 5, 6, 9, and 10 apply to both FICs and HICs.
Slots 3, 4, 11, and 12 apply to only FICs.
For NPUs.
For MPUs, which are in 1:1 backup.
For PSUs, which are in 1+1 backup.
For the fan frame.
Figure 2-5
shows the power supply architecture. Two
2 NE40E-X2 Hardware Description
26
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