Huawei NE40E Hardware Description page 168

NE40E
Hardware Description
N
a
m
e
P
M

Table 1-75 Mappings between PEMs and PMs
Powe
r
Supp
ly
Area
A
Issue 01 (2018-05-03)
Location
B1 B2 B3 B4 B5 B6 B7 B8 B9 /B
1 2 3 4
N+N(AC/HVDC)
The NE40E-X16A supports N+N backup for PMs. The power supply system supports
the backup of power supply areas A and B on the user side. Every N power modules are
connected to one power supply area, ensuring that the entire system can work properly if
any power supply area fails.
The NE40E-X16A has four PEMs. Each PEM has four inputs. There are altogether 16
inputs (8 inputs in each of area A and area B). Each PM has two inputs. The two inputs
are from power supply areas A and B, respectively. In this manner, power supply areas A
and B back up each other. A maximum of 16 PMs can achieve a maximum of 8+8
backup. Figure 1-60 and Table 1-75 show the mappings between PEMs and PMs.
Figure 1-60 Connections between PEMs and PMs
Name Location
PEM A1
5 6 7 8 9
A2 A3 A4
1 Hardware Description
/B /B /B /B
10 11 12 13 14
10 11 12 13 14
A5 A6 A7
/B /B
15 16
15 16
A8
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