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2-3
Chapter2:JumpersandPinDenitions
Backplane
Main Power
4-Pin Connector
Pin#Denition
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denitions.
10. Upgrade Connectors
The upgrade connectors, designated JP69
and JP78, are used for manufacturer's diag-
nostic purposes only.
#7., #8., #9. SAS Ports
The SAS ports are used to connect the
SAS drive cables. The three connectors are
designated SAS IN #1 - SAS IN #3. Each
of the three connectors has four ports for
a total of twelve ports. These twelve ports
are designated #0 - #11 and they are also
compatible with SATA drives.