![background image](http://html1.mh-extra.com/html/h3c/cr19000-8/cr19000-8_installation-manual_575101036.webp)
3-1
3
Installing power supplies
Installing DC power supplies
Available DC power supplies
The PSR2400-54D DC power supply is available for the router.
describes the
PSR2400-54D DC power supply specifications.
Table3-1 PSR2400-54D DC power supply specifications
Item
Specification
Rated input voltage
–48 to –60 VDC
Input voltage range
–40 to –72 VDC
Max input current
80 A
Rated output voltage
54 VDC
Max. output current
44.5 A
Max. output power
2400 W
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.
•
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).
•
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.
•
Provide a circuit breaker for power input of each DC power supply. Make sure each circuit
breaker has a current rating not less than 100 A.
Installing 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