User`s manual

E-5
Appendix E: BPN-SAS-836A Backplane Specications
Backplane
Main Power
4-Pin Connector
Pin# Denition
1 +12V
2 and 3
Ground
4 +5V
#9. Backplane Main Power Connectors
The 4-pin connectors, designated JP10,
JP13, JP46, and JP48, provide power to the
backplane. See the table on the right for pin
denitions. All four of these connectors must
be used at the same time.
#5., #6., #7., #8. I
2
C Connectors
The I
2
C connectors, designated JP37, JP52,
JP95, and JP96, are for enclosure manage-
ment of the I
2
C mode connection. See the
table on the right for pin denitions.
I
2
C Y-Cable
Connector
Pin Denitions
Pin# Denition
1 Data
2 Ground
3 Clock
4 No Connection
#10. Upgrade Connectors
The upgrade connectors are designated JP69
(for U19) and JP78 (for U40). Upgrade connec-
tors are for manufacturing use only.