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D-2 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
D.3 Configuration of Signal Lines
This section provides the signal definitions.
FIGURE D-1 shows the configuration of signal lines when the UPS is connected.
FIGURE D-1 Connection between the Server and UPS
TABLE D-1 Signal Line Definitions
Signal name Definitions Pin number Remarks
*BPS/*UALM Indicates a UPS error. 6 Normal state: Off
Abnormal state: On
*BTL Indicates that the battery level of the UPS has
decreased and warns that battery power will be
unavailable after a certain period of time has
elapsed.
7 Normal state: Off
Abnormal warning:
On
(Note 1)
*BTL
*BPS/*UALM
*ACOFF
SG
UPS cableUPS Server
7
6
9
5