IBM 88861TU, Planning Manual

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220 V ac
The following table shows the maximum power available in a BladeCenter S
system based on the number of power modules installed (connected to 220 V ac)
and the power management policy chosen.
Table 7. Power module allocations at 220 V ac
Number of
power
modules
Maximum
power Total power
available
Total power available
(power module
redundancy) Total power available
(AC power source
redundancy)
4 1450 watts 3562 watts 3562 watts 2900 watts
3 1450 watts 3562 watts
2 1450 watts 2900 watts 1450 watts 1450 watts
1 1450 watts 1450 watts
Power attachment diagrams
These power attachment diagrams show examples of how to attach to power based
on whether you are using 110 V ac or 220 V ac power sources.
Power attachment diagrams - 110 V ac
These power attachment diagrams show examples of how to attach to 110 V ac
power sources.
Remember: You cannot mix 110 V ac power sources and 220 V ac power sources
in the same BladeCenter S chassis.
Two power supplies attached to 110 V ac power sources
In this example, there are two power supplies that are attached to separate power
sources. The power sources could be dedicated branch circuits from your circuit
breaker panel:
v
Power source A could be your utility provider
v
Power source B could be your UPS service
Power
module 1
Power
module 2
!
!
Power
source A
Power
source B
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BladeCenter S Type 7779/8886: Planning Guide