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B-5 Rear Jumper Locations and Pin Definitions
J47
Q866
EXP I2C4
1
3
1
J48
3
EXP I2C0
4
4
2
2
Q873
J29
4
S_SDB
4
BC10
U51
JP4
MH17
A
S_MDIO
OVERHEATFAIL1
C
EC2
EC3
14
6
C354
L6
U30
L10
U31
MH18
+
1
4
PWR4
1
1
4
PWR5
2
3
6
1
4
PWR6
MH19
MH21
+12V
GND
+5V
Jumper
LED Testing Only
ACTLED
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.
Appendix B: BPN-SAS3-846EL Backplane Specifications
MH14
Q872
MH13
Q871
U35
BC29
1
1
L9
1
C233 C236
U21
EC6
EC8
L4
4
EC12
EC9
HS2
1
5
10
15
20
A
E
TP36
K
R
Y
MH20
L3
AE
AK
EC11
EC10
J52
J51
D1
PRESS FIT
PRESS FIT
D1
D7
D7
H1
H7
U33
H1
D8
D8
CG2
H8
D2
H2
H2
D2
CG5
CG2
C7
G7
C1
G1
C1
C7
G1
C2
C8
G8
C2
C8
G2
G2
F7
B7
B1
B7
B1
F1
12
B8
F1
B2
B2
B8
F2
F2
F8
CG4
CG1
A1
E7
A1
A7
A7
E1
E1
E2
E2
CG1
A8
A2
A8
E8
A2
Figure B-2. Rear Jumpers
Jumper Settings
Open: Disabled (Default)
Closed: Enabled
Q870
12V_LED1
C
22
+
BC57
Q869
C177
A
12
C
U29
A
C
A
C
A
5
5
1
1
A
E
H
U19
A
E
H
HS1
TP94
25
30
MH22
TP95
10
U1
CS21
BPN-SAS3-846EL2
J49
J50
CG5
CG2
PRESS FIT
PRESS FIT
D1
D7
H1
D1
D7
H7
H7
H8
D8
H8
D2
D8
D2
H2
G7
G7
CG5
CG2
C7
C1
C7
G1
C1
C2
C8
G8
C2
G8
G2
C8
F7
B1
B7
B7
F1
F7
B1
B2
B8
F2
F8
B2
F8
B8
CG4
CG1
CG4
CG1
E7
A1
A7
E7
A1
E1
A7
E2
E8
A8
A8
A2
E8
A2
MH23
Activity LED test.
B-5
LED Testing Only
ACTLED
MH15
L7
LED Testing Only
ACTLED
L2
1
Q867
1
11
JP3
P_MDIO
22
12
U26
C165 C107
C206
U4
EC20
EC18
U3
5
5
1
1
A
A
E
E
H
H
TP15
WWN
MH24
WWN
1
REV:1.01
PWR1
DESIGNED IN USA
+12V
H7
H1
1
H2
H8
G7
CG5
G1
G2
G8
F7
F1
F2
F8
PWR3
PWR2
CG4
1
4
E1
E7
+12V
GND
+5V
+12V
GND
E2
E8
MH25
BC96
R65
Note
3
Connector
Pins
Jumper
3
Setting
MH16
J30
P_UART
1
4
4
4
1
J31
P_SDB
C122
+
11
MH26
+
L5
C76
+
F73
22
12
U28
11
L8
+
4
GND
+5V
4
18
13
19
7
+5V
MH27
2
1
2
1
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