User's Manual (1.0d)

B-5
Appendix B SAS-113TQ Backplane Specications
#6 and #7. I
2
C Connectors
The I
2
C Connectors, designated JP44 and
JP45, are used to monitor HDD activity and
status. See the table on the right for pin
denitions.
I
2
C Connector
Pin Denitions
(JP44 and JP45)
Pin# Denition
1 Data
2 Ground
3 Clock
4 No Connection
#8. MG9072 Reset
Allows the MG9072 chip to be reset.
#9 - #16. Connectors
Connectors 0 through 7.
#17. Buzzer Reset
Allows the buzzer to be reset.