Huawei NE40E Hardware Description page 171

NE40E
Hardware Description
-48 V DC Power Supply
As shown in Figure 1-61, the NE40E-X16A has four PEMs. Each PEM has eight inputs.
There are altogether 32 inputs (16 inputs on each of area A and area B). Each PM has two
inputs. The two inputs are from power supply areas A and B, respectively. The PM converts
the power and outputs the power to the power supply backplane. In this manner, power supply
areas A and B back up each other A maximum of 16 PMs can be configured based on the N+1
backup mechanism.
Figure 1-61 DC power supply
AC and HVDC Power Supply
As shown in Figure 1-62, after the external power is input to PMs through PEMs, the PMs
convert power and output the power to the power supply backplane. Each PEM provides four
channels of power inputs (with two partitioned into area A and two partitioned into area B) for
four PMs. There are 16 PMs on the device.
Issue 01 (2018-05-03)
1 Hardware Description
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