H3C CR19000-20, Руководство по установке

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3-2
Item Specification
Rated output voltage 54 VDC
Max. output current 37 A
Max. output power 2000 W
Compatible power tray CR-PEM-DC2000
DC power supply configuration guidelines
Determine the number of DC power supplies based on the system power consumption and the DC
power supply configuration based on the power input mode.
•
As a best practice, configure N+M (M
≥ 1) DC power supply redundancy. Make sure N+M is not
larger than the total number of power supply slots.
N is the number of DC power supplies.
•
Make sure the total output power of the power supplies is greater than the system power
consumption (with a 20% power surplus as a best practice).
•
Provide a circuit breaker or fuse for power input of each DC power supply. Make sure each input
line has a current carrying capacity not less than 60 A.
Installing a DC power supply
IMPORTANT:
To use fewer than 24 power supplies on the router, install them from the right slots to facilitate power
cord wiring and power supply expansion.
To install a DC power supply:
1. Wear an ESD wrist strap and make sure the strap makes good skin contact and is reliably
grounded.
2. Remove the filler panel from the target power supply slot.
Put your forefinger into the hole of the filler panel to hold and pull out the filler panel along the
guide rails, as shown in
Figure3-2 .