D-6
SC846 Chassis Manual
D-6 Front Jumper Locations and Pin Definitions
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 identified 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
SEC_J2
SEC_J1
SEC_J0
PRI_J2
PRI_J1
PRI_J0
EC8
EC22
EC20
S_J1
P_J1
L1
SEC_MODE
1
PRI_MODE1
SEC_IPMI1
PRI_IPMI1
PRI_I2C1
SEC_I2C1
J25
SEC_FLASH1
PRI_FLASH1
PRI_EXP1
SEC_EXP1
FAN2
FAN1
R227
BUZZER1
5V_LED1
OVERHEATFAIL1
FANFAIL1
BUZZER_ENB1
REMOTE_FAN_FAIL_SOCKET1
PWR6
PWR4
PWR5
PWR3
PWR2
PWR1
BAR CODE
+
+
2
A
CA
C
A
C A
C
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
WWN
WWN
DESIGNED IN USA
REV 1.01
SAS846EL2
1J24
2
SEC_J2
SEC_J1
SEC_J0
PRI_J2
PRI_J1
PRI_J0
EC8
EC22
EC20
S_J1
P_J1
L1
SEC_MODE
1
PRI_MODE1
SEC_IPMI1
PRI_IPMI1
PRI_I2C1
SEC_I2C1
J25
SEC_FLASH1
PRI_FLASH1
PRI_EXP1
SEC_EXP1
FAN2
FAN1
R19
9
R227
R210
BUZZER1
5V_LED1
OVERHEATFAIL1
FANFAIL1
BUZZER_ENB1
REMOTE_FAN_FAIL_SOCKET1
PWR6
PWR4
PWR5
PWR3
PWR2
PWR1
BAR CODE
+
+
2
A
CA
C
A
C A
C
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
WWN
WWN
DESIGNED IN USA
REV 1.01
SAS846EL2
SEC_Mode1
PRI_Mode1
REMOTE_FAN_FAIL_SOCKET1
BUZZER_ENB1
OVERHEATFAIL1
FANFAIL1
Figure 2-2: Front Jumper Locations and Pin Defimitions