Servicing the ZS3-4 Controller
ZS3-4 Electrical Specifications
The following list shows the electrical specifications for the controller.
Note - The power dissipation numbers listed are the maximum rated power numbers for the
power supply. The numbers are not a rating of the actual power consumption of the appliance.
Input
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Nominal frequencies: 50/60Hz
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AC operating range: 200-240 VAC
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Maximum current AC RMS: 12A @ 200 VAC
Power Dissipation
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Max power consumption: 1800 W
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Max heat output: 6143 BTU/hr
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Volt-Ampere rating: 1837 VA @ 240 VAC, 0.98 P.F.
ZS3-4 Internal Boards
The ZS3-4 controller chassis contains the following field-replaceable units (FRUs). FRUs are
not customer-serviceable, and should only be replaced by trained Oracle service technicians.
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Motherboard - The motherboard includes CPU modules, slots for eight DIMM risers,
memory control subsystems, and the service processor (SP) subsystem. The SP subsystem
controls the host power and monitors host system events (power and environmental). The
SP controller draws power from the host's 3.3V standby supply rail, which is available
whenever the system is receiving AC input power, even when the system is turned off.
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Power Distribution Board - The power distribution board distributes main 12V power
from the power supplies to the rest of the system. It is directly connected to the Vertical
PDB card, and to the motherboard through a bus bar and ribbon cable. It also supports a top
cover interlock ("kill") switch. In the controller, the power supplies connect to the power
supply backplane which connects to the power distribution board.
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Vertical PDB Card - The vertical power distribution board, or Paddle Card serves as the
interconnect between the power distribution board and the fan power boards, hard drive
backplane, and I/O board.
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Power Supply Backplane Card - This board connects the power distribution board to
power supplies 0 and 1.
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Fan Power Boards - The two fan power boards are FRUs and carry power to the controller
fan modules. In addition, they contain fan module status LEDs and transfer I2C data for the
fan modules.
Servicing the Hardware 81
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