
C-12
SC836 Chassis Manual
Single Host Bus Adapter
In a single host bus conguration, the
backplane connects to one Host Bus
Adapter (HBA).
L1
L121
C352
+
C367
+
C366
+
EC3
+
+
C133
+
C134
+
C121
+
C120
+
C119
+
C132
+
C365
+
C353
+
EC5
+
EC26
+
EC28
+
EC20
EC22
+
+
EC1
EC15
+
EC16
+
EC18
+
EC10
+
EC7
+
EC9
+
+
+
EC27
+
EC21
+
EC19
+
EC17
+
EC14
+
+
EC12
+
EC11
R284
R162
R249
C411
BCA185
C60
BCA26
C351
BCA105
BCA115 BCA111 BCA172
BCA160
+
JP1
1
4
3
1
JP105
3
JP106
Q3
U14
U18
PRI_I2C1
1
4
1
4
1
4
UART_P1
1
4
EXPDBG1
3 3
1
PRI_MODE1
1
3
PRI_MODE2
3
AH
2825
AE
1510
K
R
20
E
Y
5
U3
5
Y
E
20
R
K
10 15
AE
AH
L18
L41
+
C361
+
+
C129
+
+
+
C363
+
FAN2
1
4
FAN31
4
41 FAN1
BAR CODE
MH6
MH5
MH8
MH4
MH10
MH12
MH3
MH9
MH1
FAN_MONITOR_DISABLE
1
FANFAIL_LED_DISABLE
1
BUZZER_ENB1
1
1
ACTLED1
1
MDIO1
MDIO2
C262
C421
C402
C259
BCA14
BCA64
C212
C292
C154
C182
C227
SEC_J3
SEC_J2
PRI_J3
PRI_J2
PRI_J1
SEC_J1
2
1
J16
J19
1
D4
A
ACT18
ACT17
A
C
12V_LED1
A
C
5V_LED1
A
C
OVERHEATFAIL1
A
C
FANFAIL1
A
C
F3
+5V +12VGND GND
PWR4
PWR3
GNDGND
+12V
+5V
PWR2
GND
GND
+12V
+5V
PWR1
GNDGND
+12V
+5V
1.02REV:
BPN-SAS2-836EL2
MACH FINISH
30
ANGLE
SPECIFIED DIMENSIONS
UNLESS OTHERWISE
XXX
XX
X
.010
.03
.1
TOLERANCES
DECIMAL
ARE IN INCHES
MinhDESINGER:
DATE: 2010 05 28
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
DESIGNED IN USA
BPN-SAS2-836EL2
REV 1.02
B
A
UART_S1
EXPDBG2
SEC_MODE2
SEC_MODE1
L1
L121
C352
+
C367
+
C366
+
EC3
+
+
C133
+
C134
+
C121
+
C120
+
C119
+
C132
+
C365
+
C353
+
EC5
+
EC26
+
EC28
+
EC20
EC22
+
+
EC1
EC15
+
EC16
+
EC18
+
EC10
+
EC7
+
EC9
+
+
+
EC27
+
EC21
+
EC19
+
EC17
+
EC14
+
+
EC12
+
EC11
R284
R162
R249
C411
BCA185
C60
BCA26
C351
BCA105
BCA115 BCA111 BCA172
BCA160
+
JP1
1
4
3
1
JP105
3
JP106
Q3
U14
U18
PRI_I2C1
1
4
1
4
1
4
UART_P1
1
4
EXPDBG1
3 3
1
PRI_MODE1
1
3
PRI_MODE2
3
AH
2825
AE
1510
K
R
20
E
Y
5
U3
5
Y
E
20
R
K
10 15
AE
AH
L18
L41
+
C361
+
+
C129
+
+
+
C363
+
FAN2
1
4
FAN31
4
41 FAN1
BAR CODE
MH6
MH5
MH8
MH4
MH10
MH12
MH3
MH9
MH1
FAN_MONITOR_DISABLE
1
FANFAIL_LED_DISABLE
1
BUZZER_ENB1
1
1
ACTLED1
1
MDIO1
MDIO2
C262
C421
C402
C259
BCA14
BCA64
C212
C292
C154
C182
C227
SEC_J3
SEC_J2
PRI_J3
PRI_J2
PRI_J1
SEC_J1
2
1
J16
J19
1
D4
A
ACT18
ACT17
A
C
12V_LED1
A
C
5V_LED1
A
C
OVERHEATFAIL1
A
C
FANFAIL1
A
C
F3
+5V +12VGND GND
PWR4
PWR3
GNDGND
+12V
+5V
PWR2
GND
GND
+12V
+5V
PWR1
GNDGND
+12V
+5V
1.02REV:
BPN-SAS2-836EL2
MACH FINISH
30
ANGLE
SPECIFIED DIMENSIONS
UNLESS OTHERWISE
XXX
XX
X
.010
.03
.1
TOLERANCES
DECIMAL
ARE IN INCHES
MinhDESINGER:
DATE: 2010 05 28
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
DESIGNED IN USA
BPN-SAS2-836EL2
REV 1.02
B
A
UART_S1
EXPDBG2
SEC_MODE2
SEC_MODE1
SAS HBA
SAS HBA
Primary ports
Expander 1
Primary ports
Expander 1
Secondary ports
Expander 2
Secondary ports
Expander 2
The BPN-SAS2-836EL2 backplane has two expanders which allow effective failover.
C-11 Failover
Single Host Bus Adapter
Failover
If the expander or data path in Port A
fails, the system automatically switches
to Port B.
Figure C-6. Single and Dual HBAs
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