5 Power
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a 48 V power input and a 3.3 V power input to the boards. The two 48 V power inputs are
integrated in the boards and the two 3.3 V power inputs are integrated in the backplane and
then input to the boards. Each power module provides a 48 V power input to the fans. The two
48 V power inputs are integrated in the backplane and then input to the fans.
Figure 5-1
Diagram of the power supply architecture
5.1.3 DC Power System
Overview
Table 5-1
Power attributes
Attribute
Description
Description
DC Power Supply
BOM
03030QAS
Model
CR5D00PSUC70
Table 5-2
Mapping products and versions
Product
Slot ID
Earliest Software
Version
NE20E-S4
slot 8 to 9
V800R005C00
NE20E-S8
slot 13 to slot 14
V800R005C00
The device uses two PSUs, which work in 1+1 backup mode, for power supply. Figure 5-2
shows the outline of a PSU.