Dc Pem - Huawei NE40E Hardware Description

NE40E
Hardware Description
Item
Typical heat dissipation

1.8.6.4 DC PEM

The DC PEM is used to connect the DC power supply. Each PEM provides eight power inputs.
The four terminals on the right side are connected to the power supply plane on the client side,
and the four terminals on the left are connected to the power supply plane on the client side.
The DC PEM is fully configured with the entire system. The system has four PEMs.
Appearance
Figure 1-65 shows the appearance of a DC PEM.
Figure 1-65 DC PEM
Panel
Table 1-82 Interface Description
Interface
Name
NEG(-)
RTN(+)
Input upstream requirements


Issue 01 (2018-05-03)
Description
– 48 V power input
port
BGND power input
port
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.
Specification
481.8 BTU/hour
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.
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