Huawei NE40E Hardware Description page 167

NE40E
Hardware Description
Power Module Mappings
The NE40E-X16A supports multiple power supply scenarios, which vary in the installed
PEMs and PMs. Table 1-73 lists the mappings between power supply scenarios and
PEMs/PMs.
Table 1-73 Mappings between power supply scenarios and PEMs/PMs on the NE40E-X16A
Power Supply Scenario
-48 V DC power supply
AC power supply
240 V HVDC power supply
380 V HVDC power supply
-48 V DC power supply system supports N+1 (1 indicates the number of backup modules)
PMs power module backup. The AC, 240 V HVDC, and 380 V HVDC power supply systems
supports N+N (N indicates the number of working modules)PMs power module backup. The
power supply system supports the backup of power supply areas A and B on the user side,
ensuring that the entire system can work properly if any power supply area fails.

Table 1-74 Mappings between PEMs and PMs
N
a
m
e
PE
M
Issue 01 (2018-05-03)
N+1(-48 V DC)
The NE40E-X16A has four PEMs. Each PEM has eight inputs. There are altogether 32
inputs (16 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 be configured based on the N+1
backup mechanism. Figure 1-59 and Table 1-74 show the mappings between PEMs and
PMs.
Figure 1-59 Connections between PEMs and PMs
Location
A A A A
1/ 2/ 3/ 4/
PEM
DC PEM
AC PEM
HVDC PEM
HVDC PEM
A A A A A
5/ 6/ 7/ 8/ 9/
1 Hardware Description
PM
DC PM
 2700 W AC PM
 3000 W AC&HVDC PM
3000 W AC&HVDC PM
3000 W AC&HVDC PM
A A A A A
10 11 12 13 14
A A
15 16
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