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C-2 SPARC Enterprise M8000/M9000 Servers Service Manual • October 2012
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
5 SG --- 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 Input/Output Description
1 VBUS Output Power supply
2 -DATA Input/output Data
3 +DATA Input/output Data
4 GND --- Ground
9876
54321
1234