H3C CR19000-20, Руководство по установке

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3-9
Table3-2 PSR3000B-54AHD power supply specifications
Item Specification
Rated input voltage
•
100 to 130 VAC @ 60 Hz
•
200 to 240 VAC @ 50 Hz
•
240 VDC
•
336 VDC
Input voltage range
•
90 to 150 VAC @ 47 to 63 Hz
•
176 to 290 VAC @ 47 to 63 Hz
•
180 to 290 VDC
•
260 to 400 VDC
Rated input current 16 A
Rated output voltage 54 VDC
Max. output current 55.6 A
Max. output power
•
100 to 130 VAC @ 60 Hz: 1500 W
•
200 to 240 VAC @ 50 Hz: 3000 W
•
240 VDC: 3000 W
•
336 VDC: 3000 W
Compatible power tray
•
AC power input: CR-PEM-AC3000 and CR-PEM-HVDC3000
•
240 VDC power input: CR-PEM-AC3000 and CR-PEM-HVDC3000
•
336 VDC power input: CR-PEM-HVDC3000
AC power supply configuration guidelines
Determine the number of AC power supplies based on the system power consumption and the AC
power supply configuration based on the power input mode.
•
As a best practice, configure N+N (dual power sources) AC power supply redundancy. Make
sure N+N is not larger than the total number of power supply slots.
N is the number of AC 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 for power input of each AC power supply. Make sure each circuit
breaker has a current rating not less than 20 A.
Installing an AC 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 an AC power supply:
1. Wear an ESD wrist strap and make sure the strap makes good skin contact and is reliably
grounded.
2. Put your forefinger into the hole of the filler panel and to hold and pull out the filler panel along
the guide rails as shown in
Figure3-12 .