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D-7 Front Jumper Locations and Pin Definitions
JP18
BUZZER RESET
JP106
U24
CH#20~23
JSM6
#23
C326
C330
+
+
64
D116
D113
1
+
16
#22
C325
+
#21
C329
+
#20
C324
+
I2C#5
JP116
I2C#6
#19
JP117
FAN#1
C328
+
1
4
JP54
JP110
JP61
+12V
GND
GND
+5V
MH15
#18
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
JP35
JP50
JP129
Appendix D: SAS-846A Backplane Specifications
JP97
JP98
JP129
JP107
JP107:OH#3 TEMP.
C359
JP99
1
3
OPEN:45
C
1-2:50
C
2-3:55
C
JP100
#17
JP129:9072#3 RESET
1-2: RESET
2-3: NO RESET
+
+
U73
49
U63
C323
#16
JP97
JP35
JP98
JP99
JP100
+
Y3
JP97:FAN#1 SELECT
JSM5
JP98:FAN#2 SELECT
JP99:FAN#3 SELECT
JP100:FAN#4 SELECT
C199
CH#12~15
1-2:WITH FAN
2-3:NO FAN
JSM4
#15
R494
C337
+
C206
C204
#14
C200
+
ACT_IN#16-23
16
20
17
21
18
22
JP96
23
19
JP108
#13
C318
C319
+
F20
JP62
+12V
GND
GND
+5V
1
MH14
#12
JP62
Figure D-2: Front Jumpers
Jumper Settings
Jumper Setting
1-2: Reset
2-3: Normal (Default)
1-2: Reset
2-3: Normal (Default)
1-2: Reset
2-3: Normal (Default)
JP45
JP45:OH#2 TEMP.
OPEN:45
C
1-2:50
C
2-3:55
C
C282
JP105
CH#8~11
#11
JSM3
C203
C197
+
+
JP50
JP35:9072#1 RESET
1-2: RESET
2-3: NO RESET
#10
JP35
JP50
JP50:9072#2 RESET
1-2: RESET
2-3: NO RESET
+
#9
C212
U40
C213
+
Y2
R619
C201
C241
+
U91
14 15
ACT_IN#8-15
12 13
JP47
8
9
10 11
I2C#3
JP52
FAN#3
C193
JP63
C194
JP37
JP95
I2C#1
+
1
4
JP58
C35
C261
JP63
FAN#2
4
MH13
MG9072 Chip Reset #1
MG9072 Chip Reset #2
MG9072 Chip Reset #3
D-5
D45
D47
D49
D51
D3
C
D36
D89
A
C
A
C
A
C
A
C
A
A
C
A
C
A
JP25:OH#1 TEMP.
+
OPEN:45
C
1-2:50
C
2-3:55
C
#5
+
+
D64
C45
JP84
#4
R113
U19
C271
C272
R415
C88
R414
R111
R112
R147
+
R148
Y1
R104
R344
CH#4~7
JSM2
JP84:MODE
DESIGNED IN USA
1-2:SGPIO
2-3:I2C
#3
R105
C89
+
R575
R624
JP69
R367
#2
+
0
4
1
5
2
6
3
7
FAN#4
#1
JP60
JP26
1
I2C#2
JP64
+
1
SAS846A
JP64
REV: 1.00
MH12
#0
3
2
Connector
Pins
Jumper
3
Setting
Notes
D53
D54
C
A
C
R324
R325
+
BZ1
JSM1
CH#0~3
4
JP61:FAN#1 SELECT
JP62:FAN#2 SELECT
3
JP63:FAN#3 SELECT
JP64:FAN#4 SELECT
1-2:WITH FAN
F4
2-3:NO FAN
MH11
1
2
1
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