If you are using
combined power mode (no power redundancy) or power supply (n+1) power mode, connect
all of the power supplies to the same power circuit (grid).
If you are using input
source (n+n) or full power mode,
connect half of the power supplies (located in slots
2, 5, 6, 9, 10, 13, and 14) to one AC power circuit and the other half of
the power supplies (located in slots
4, 7, 8, 11, 12, 15, and 16) to another AC power circuit.