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Appendix E: SAS-826A Backplane Specifications
Jumpers and Pin Definitions
E-5 Front Connectors and Jumpers
12
10
1 12
B
D53
C94
A
C
R325
A
D54
C
C88
C285
RP1
49
16
33
17 C86
C85
C271 C272
32
13
Y1
ACT7
ACT6
JP26
ACT2
ACT3
ACT1
ACT0
1
R347
U24
+
ACT5
ACT4
+
14
C100
ACT_IN#8-11
C45
48
UPGRADE#1
R120
ACT8
ACT9
ACT10
1
I2C#2
ACT11
C84
JP47
JP95
F1
C32
JP10
15
BZ1
BAR CODE
U18
C107
JP13
F2
I2C#3
R94
F3
C33
+
JP69
R376
JSM1
+
+
B
C3
+
1
A
4
C145
+
16
JP45
ALARM#2
R330
R336
C138
BUZZER RESET
JP45:OH#2 TEMP
OPEN:45
C
1-2:50
C
2-3:55
C
JP52
R141
1
JP25:OH#1 TEMP
OPEN:45
C
1-2:50
C
2-3:55
C
C
D36
C119
16
R200
R201
1
JP18
C5
17
JP84
SAS IN #1
C208 R226
R249
+
JP84:MODE
1-2:SGPIO
2-3:I2C
1
R337
+
C197
JP46
JP25
U41
U19
RT2
R257
1
C44
JSM2
UPGRADE#2
JSM3
4
+
R423
R422
R425
R424
C87
10
1
U2
SAS IN #2
JP78
D3
R6 R98
C215ALARM#1
C
A
R123
C132
R132
R126
REV 1.00
DESIGNED IN USA
SAS IN #3
C213
16
9072 RST
Y2
JP50 JP35
12
+
C201
R208
34
11
1
C198
18
SAS826A
C202
+
9071 RST
R63
C1
19
U40
22
23
33
ACT_IN#0-7
JP37I2C#1
+
Figure E-1: Front Connectors
Front Connectors
1. ACT_IN: JP26 and JP47
2. Chips: MG9071 and MG9072
3. I2C Connector #1: JP37
4. I2C Connector #2: JP95
5. I2C Connector #3: JP52
6. Power Connectors (4-pin): JP10,
JP13, and JP46
7. SAS IN #1 JSM1
8. SAS IN #2 JSM2
9. SAS IN #3 JSM3
10. Upgrade Connectors, JP69 and
JP78
E-3