Supermicro SC826 JBOD User Manual page 77

B-6 Rear Jumper Location and Settings
J23
MH8
MH4 + 1 4
+
SEC-UART
C496 C497
C5
U6
U17
JPW3
C52
MH5
U21
C681
C689
JPW2
U14
JPW1 L23
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.
Jumper
ACT-LED TEST
Appendix B BPN-SAS3-826EL Backplane Specifications
HB-LED
LED28
7 I2C#4
J21 U30
24 U34
4
3 2 1
SEC-SDB
J19
1 4
C495
U27 SECONDARY EXPANDER
+
J17
MH3
C499
+
ACT-LED
TEST
C500
J16
+
L22
U20
BAR CODE
Figure B-2. Jumpers
General Jumper Settings
Jumper Settings
Open: Disabled (Default)
Closed: Enabled
DESIGNED IN USA
I2C#0
J20
U22
BPN-SAS3-826EL1
MH9
SAS CODE
4 3 2 1
REV:1.00
C501 +
ACT-LED
C494
TEST
1
JP1 +
U16
U24
1
+ C491
+
L3
Note
Activity LED test.
B-5
PRI-SDB
+ C502
LED29 A
C
J18 R97 A C C A
1 4 LED25 LED26
12V 5V
MH6 4
1
PRI-UART
J22
SAS CODE
U7
C492 C498 J*
+
+
PRIMARY EXPANDER
MH2
J*
3 2
Connector
Pins
Jumper
3 2
Setting
MH1 MH7
J15
J14
3
2
1
1
1