Supermicro SC846A-R1200B, User Manual

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B-6
SC846 Chassis Manual
Backplane
Main Power
4-Pin Connector
Pin# Definition
1 +12V
2 and 3 Ground
4 +5V
10. Backplane Main Power Connectors
The 4-pin connectors, designated JP10, JP13,
JP46, JP48, JP109, and JP110, provide power
to the backplane. See the table on the right for
pin definitions.
11 - 34. SAS Ports
The SAS ports are used to connect the SAS
drive cables. The twenty-four ports are desig-
nated #0 - #23. Each port is also compatible
with SATA drives.
7. - 9. Sideband Headers
The sideband headers are designated JP66,
JP68, JP75, JP77, JP112, and JP114. For
SES-2 to work properly, you must connect an
8-pin sideband cable. See the table to the right
for pin definitions.
NOTE: SGPIO is the default setting for this
backplane.
Sideband Headers
Pin # Definition Pin # Definition
2 SGPIO:
SDIN
I
2
C:
Backplane
Addressing
(SB5)
1 Controller ID
(SB6)
4 SGPIO:
SDOUT
I
2
C: Reset
(SB4)
3 GND (SB2)
6 GND (SB3) 5 SGPIO:
SLOAD
I
2
C: SDA (SB1)
8 Backplane
ID (SB7)
7 SGPIO:
SCLOCK
I
2
C: SCL (SB0)
10 No Connec-
tion
9 No Connection