Huawei NE40E - NE40 E-X8 Power Supply System; Architecture of the Power Supply System

NE40E
Hardware Description
1 Hardware Description
Issue 01 (2018-05-03)
113
Item
Specification
Dimensions (H x W x D)
43 mm x 424.3 mm x 80 mm (1.69 in. x 16.70 in. x 3.15
in.)
Weight
2.5 kg (5.51 lb)
Rated voltage
200 V AC to 240 V AC
Voltage range
180 V AC to 264 V AC
Maximum current
16 A
Typical power consumption
67.9 W
Typical heat dissipation
220.2 BTU/hour
The AC power system supports 200-240 V AC power. It supports 110 V dual-live-wire inputs but not
110 V AC single-phase inputs. If 110 V dual-live-wire inputs are used, the voltage must range from 180
V to 264 V.
1.8.3 NE40E-X8 Power Supply System
1.8.3.1 Architecture of the Power Supply System
The NE40E-X8 supports either DC or AC power supply.
DC power supply
In the case of a DC power supply system, four 70 A Power Entry Modules (PEMs) are
inserted at the rear of the chassis, working in 2+2 backup mode. Two -48 V power inputs are
joined on the board. Figure 1-34 shows details of the DC power supply system.
In Figure 1-34, each DC power input contains one -48 V power input and one RTN input. Two separated
RTN inputs are joined on the board.
PEM A1 and PEM B1 work in 1+1 backup mode, PEM A2 and PEM B2 work in 1+1 backup mode.