
D-7
SC837J Chassis Manual
D-9 Connecting SAS-837A and SAS-837EL Backplanes
The SAS2-837EL and SAS-837A backplanes are designed to work together. The
following congurations show how the SAS2-837EL and SAS-837A may be con-
nected together.
Identifying the Backplanes
Examine the diagrams below and identify the SAS2-837EL and SAS-837A back-
planes. Identify the locations of the SAS ports on each board. Also note the location
of the primary I
2
C connectors, if the optional I
2
C conguration is desired.
1
4
UART_S
1
4
UART_P
1
4
EXPDBG2
1
4
EXPDBG1
ACTLED1
1
FANFAIL_LED_DISABLE
1
FAN_MONITOR_DISABLE
1
MH10
MH9
MH11
MH12
MH13
MH3
MH8
MH4
MH6
MH7
MH5
MH2
MH1
RA611
C2988
C377
BCA534
DESIGNED IN USA
BPN-SAS2-837EL2
REV: 1.00
BCA420
BC92
BC91
C430
BC52
+
+
+
B1B18
SEC_J4
A1
B1
A18
B18
SEC_J3
B1 B18
PRI_J4
B1 B18
PRI_J3
A1
B1B18
SEC_J2
A1
A1
B1
A18
B18
SEC_J0
B1
A18
B18
PRI_J2
B1 B18
PRI_J1
A1
B1
A18
B18
PRI_J0
+
EC36
+
EC20
+
EC17
L153
L1
+
EC9
+
EC8
+
+
EC4
+
EC3
+
EC28
+
EC27
+
EC26
+
EC25
+
EC22
+
EC2
+
EC15
+
EC13
+
EC10
+
EC1
L152
L151
L147
L148
L149
U1
U6
FANFAIL1
A
C
OVERHEATFAIL1
A C
12V_LED
A
C
5V_LED
A
C
ACT25
AC
ACT24
A
C
+
EC19
+
C2973
+
C2972
+
C2971
+
C2970
+
+
+
+
EC35
+
EC16
+
EC18
+
+
C871
+
C870
+
C868
+
C867
+
C866
+
C865
+
C864
+
C863
C862
+
C861
FAN1
1
FAN2
4
1
FAN3
J24
J25
1
8
Q1 Q2
5
Y
E
20
R
K
10 15
AE
25 28
AH
U4
5
Y
20
K
10
15
25
28
Q3
U5
16
17
33
SEC_FLASH
PRI_FLASH
U17
U16
U312
Y10
U332
PRI_I2C
PRI_I2C1
L398
BAR CODE
+5V+12V GNDGND
PWR4
+5V
+12V
GND
GND
PWR3
+5V
+12V
GND
GND
PWR2
+5V+12V
GND
GND
PWR1
1.00R EV:
BPN-SAS2-837EL2
MACH FINISH
30
ANGLE
SPECIFIED DIMENSIONS
UNLESS OTHERWISE
XXX
XX
X
.010
.03
.1
TOLERANCES
DECIMAL
ARE IN INCHES
H/W:Shen Ping
DESINGER:
DATE: 8-10-2010
PROJECT NAME:
SAN JOSE,CA 95131
DESIGNED BY SUPERMICRO U.S.A.
www.supermicro.com
TEL:408-503-8000 FAX:408-503-8008
SILKSCREEN
PRIMARY-SIDE
S
UPER
R
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
RRRRRRRRRR
WWN
WWN
1
JP6
1
JP5
JP4
DESIGNED IN USA
A1
B1
A18
B18
PRI_J0
A1
B1
A18
B18
PRI_J1
A1
B1
A18
B18
PRI_J2
A1
B1
A18
B18
SEC_J0
A1
B1
A18
B18
SEC_J1
A1
B1
A18
B18
SEC_J2
MH9
MH8
MH7
MH6
MH5
MH4
MH3
MH2
MH10 MH1
D65
D54
A C
D53
A
C
1.00REV:
SAS837A
MACH FINISH
30
ANGLE
SPECIFIED DIMENSIONS
UNLESS OTHERWISE
XXX
XX
X
.010
.03
.1
TOLERANCES
DECIMAL
ARE IN INCHES
SARAH CUI
DESINGER:
DATE: 2010 08 04
PROJECT NAME:
SAN JOSE,CA 95131
DESIGNED BY SUPERMICRO U.S.A.
www.supermicro.com
TEL:408-503-8000 FAX:408-503-8008
SILKSCREEN
PRIMARY-SIDE
S
UPER
R
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
S
UPER
RRRRRRRRRR
U18
U1
U24
C81
+
C119
C285
+
C198
+
C85
+
C84
+
C5
+
C45
+
C44
+
C3
C202
+
C201
+
C197
C58
C76
C152
C111
JP10
1
4
JP13
1
4
JP46
1
4
BAR CODE
JP6:
OPEN: DEFAULT
SEC:#8-#11
PRI:#8-#11
SEC:#4-#7
PRI:#4-#7
SEC:#0-#3
PRI:#0-#3
JP4:I2C
CLOSE: FAIL LED TEST
JP5:
OPEN: DEFAULT
CLOSE: ACT LED TEST
REV 1.00
SAS837A
Figure D-4: SAS2-837EL Backplane
Figure D-5: SAS-837A Backplane
PRI_J0
SEC_J0
PRI_J1
SEC_J1
PRI_J2
SEC_J2
PRI_J4
PRI_J0
PRI_J3
PRI_J2
PRI_J1
SEC_J4
SEC_J1
SEC_J3
SEC_J2
SEC_J0
PRI_I2C1
JP4:I2C
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