C-5
Appendix C: SAS-826A Backplane Specications
Backplane
Main Power
4-Pin Connector
Pin# Denition
1 +12V
2 and 3 Ground
4 +5V
#6. Backplane Main Power Connectors
The 4-pin connectors, designated JP10,
JP13, and JP46 provide power to the
backplane. See the table on the right for
pin denitions.
#7., #8., #9. SAS Ports
The SAS ports are used to connect the SAS
drive cables. The 12 ports are designated
#0 - #11. Each port is also compatible with
SATA drives.
10. Upgrade Connectors
The upgrade connectors, designated JP69
and JP78, are used for manufacturer's diag-
nostic purposes only.
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