Ac Pm - Huawei NE40E Hardware Description

NE40E
Hardware Description
Panel
Table 1-47 Interface Description
Interface
Name
NEG(-)
RTN(+)
Input upstream requirements


Note the derating requirements of protection components when using protection components
such as fuses and circuit breakers. If the current of a PDF is less than 63 A, it cannot supply
power to the NE40E-X8A. In this case, reconstruct power supply in the equipment room.

1.8.4.5 2700 W AC PM
The PM accesses external AC power through PEMs, the PMs convert AC power into
regulated DC power and output the power to the power supply backplane.
Overview
Table 1-48 Power attributes
Attribute
Issue 01 (2018-05-03)
Description
Input interface for
–48 V power
supply
Input interface for
BGND power
supply
Power cables are routed onsite. When the distance is ≤25 m, 25 mm^2 cables are used.
When the distance is greater than 25 m and less than or equal to 35 m, 35 mm^2 cables
are used. If the distance is longer than 35 m, place the power cabinet near the equipment
room.
Protection components must be provided for PDFs to ensure that the rated current of
each channel is not less than 63 A.
If the front-end PDF does not provide enough power inputs, configure a PDB that meets
the following requirements:
− The current of each channel output by the DC PDB is not less than 63 A.
− Double-channel backup is used.
− The input current is not less than the sum of current of its connected output lines.
Applicable power cable terminals
 JG2-25mm2-M6-150A, applicable to 25 mm^2
power cables
 JG2-34.3mm2-M6(1/4")-134AIt is applicable to
the 35 mm^2 power cable.
Description
1 Hardware Description
131