Appendix D
UPS Controller
D-3
On: Indicates that the contact is closed.
Off: Indicates that the contact is open.
Note 1: Use a UPS that can normally supply power from the battery for at least 10 to 60 seconds after *BTL is turned on.
Note 2: Use a UPS that can normally supply power from the battery even if *ACOFF does not turn on in the event of an instantaneous power failure
lasting two seconds or less.
*ACOFF
Signal indicates power failure at the commercial AC
supply connector to the UPS.
9
Normal: OFF
Failure: ON
(Note 2)
SG
Signal ground
5
ER
Signal indicates the main unit is running (Equipment
Ready).
1
Do not connect to ER
signal pin.
TABLE D-1
Signal Line Definitions
(Continued)
Signal Name
Definitions
Pin Number
Remarks
Summary of Contents for SPARC Enterprise M8000
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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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