D-1
A P P E N D I X
D
UPS Controller
This appendix explains the UPS controller (UPC) that controls the uninterruptible power
supply (UPS) unit.
■
Section D.1, “Overview” on page D-1
■
Section D.2, “Signal Cable” on page D-1
■
Section D.3, “Signal Line Configuration” on page D-2
■
Section D.4, “Power Supply Conditions” on page D-4
■
Section D.5, “UPS Cable” on page D-5
■
Section D.6, “Connections” on page D-6
■
Section D.7, “UPC Port” on page D-7
D.1
Overview
A UPS unit is used to provide a stable supply of power to the system in the event of a power
failure or an extensive power interruption.
When a failure is detected in the supply of power, an error can be reported to the server
through the signal cable connection between a UPC port on the server and a UPS that has the
UPC interface, so that the server can execute emergency shutdown processing to safely shut
down the system.
D.2
Signal Cable
Prepare shielded and paired cables that have the following specifications:
■
DC resistance (roundtrip/1 pair): 400
Ω
/km or less
■
Cable length: Up to 10 m (33 ft.)
Summary of Contents for SPARC Enterprise M8000
Page 4: ......
Page 15: ...Contents xv Index Index 1 ...
Page 16: ...xvi SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
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Page 27: ...Chapter 1 Safety and Tools 1 5 M9000 Server Front View ...
Page 29: ...Chapter 1 Safety and Tools 1 7 Power Supply Unit PSU ...
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Page 205: ...Chapter 7 I O Unit IOU Replacement 7 13 FIGURE 7 8 Removing the IOU Front of M9000 1 1 2 3 ...
Page 227: ...Chapter 8 FAN Unit Replacement 8 11 FIGURE 8 9 Removing the FAN Unit Rear of M8000 1 2 ...
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Page 409: ...Chapter 20 Backplane Replacement 20 29 FIGURE 20 16 Removing the FANBP Rear of the M8000 ...
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Page 439: ...Chapter 23 Switch Backplane Replacement 23 7 FIGURE 23 4 Removing the SWBP Rear of the M8000 ...
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