27
Connecting an AC power cord
CAUTION:
•
Make sure each power cord has a separate circuit breaker.
•
Before you connect a power cord, turn off the circuit breaker for it.
To connect an AC power cord:
1.
Connect the AC power cord connector to the AC input receptacle of the power supply.
2.
Connect the other end of the power cord to an AC power source.
Figure 2-27 Connecting an AC power cord (M9000-AI-E16 gateway)
Installing HVDC power supplies
The PSR3000-54AHD power supply supports AC input and HVDC input and is available for the
gateway for HVDC input. See
for the PSR3000-54AHD power supply specifications.
HVDC power supply configuration guidelines
Determine the number of HVDC power supplies based on the system power consumption and the
HVDC power supply configuration based on the power input mode.
•
As a best practice, configure N+N (dual power sources) HVDC power supply redundancy.
Make sure N+N is not larger than the total number of power supply slots.
N is the number of HVDC 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 HVDC power supply. Make sure each circuit
breaker has a current rating not less than 20 A and meets the requirements for HVDC power
supply, such as HVDC certification and bipolar protection.
