User`s manual

C-5
Appendix C: SAS-936A Backplane Specications
C-7 Front Jumper Locations and Pin Denitions
Explanation of Jumpers
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the function
of the connector. Pin 1 is identied with
a square solder pad on the printed circuit
board. Note: On two pin jumpers, "Closed"
means the jumper is on and "Open" means
the jumper is off the pins.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
Jumper Settings
Jumper Jumper Settings Note
JP35
1-2: Reset
2-3: Default
MG9072 Chip Reset #1
JP50
1-2: Reset
2-3: Default
MG9072 Chip Reset #2
MH7
PWR0PWR1PWR2PWR3
FAN1 FAN3
FAN2
SEC_I2C
R581
SAS936A
3.1
BAR CODE
+5V +12VGND GND
+5V
+12V
GND
GND+5V
+12V
GND GND
+5V
+12V
GND
GND
A
C
A
C
A
C
REV:
A
C
A
C
A
C
A
C
JP50
JP35
Figure C-2: Jumper Locations