User`s manual

C-4
SC936 Chassis Manual
Backplane
Main Power
4-Pin Connector
(JP10, JP13, JP46,
and JP48)
Pin# Definition
1 +12V
2 and 3 Ground
4 +5V
6. 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
definitions.
10. - 13. SAS IN Ports (Sideband included)
The SAS ports are used to connect the SAS
drive cables. The four SAS IN ports are des-
ignated #JSM1 - #JSM4. Each port is also
compatible with SATA drives.
7., 8. and 9. Fan Connectors
The 3-pin or 4-pin connectors, designated
JP54, JP56, and JP58 provide power to the
fans. See the table on the right for pin defini-
tions.
Sideband Definitions
(JSM1 - JSM4)
Pin # Definition Pin # Definition
A11
SGPIO:
SDIN
I
2
C:
Backplane
Addressing
(SB5)
B11 Controller ID
(SB6)
A12 SGPIO:
SDOUT
I
2
C: Reset
(SB4)
B10 GND (SB2)
A9 GND (SB3) B9 SGPIO:
SLOAD
I
2
C:SDA
(SB1)
A8 Backplane
ID (SB7)
B8 SGPIO:
SCLOCK
I
2
C:SCL
(SB0)
Fan Connectors
(JP54, JP56 and JP58)
Pin# Definition
1 Ground
2 +12V
3 Tachometer
4 No Connection
Note: SGPIO is the default setting for this
backplane