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C-2 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
C.2 UPC Port
C.3 USB Port
TABLE C-2 UPC Port
Setting Pin No> Signal name Input/output Description
1 ER Output Equipment power-on report signal
2 NC — Not connected
3 NC — Not connected
4 NC — Not connected
5SG — Ground
6 *BPS Input UPS hardware error signal
7 *BTL Input Battery end of discharge warning
signal
8 NC --- Not connected
9 *ACOFF Input Power failure detection signal
TABLE C-3 USB Port
Setting Pin No> Signal name Name Abbreviation
1 VBUS Output Power supply
2 -DATA Input/output Data
3 +DATA Input/output Data
4GND — Ground
9876
54321
1234