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Single and Dual Port Expanders
Single Ports
BPN-SAS2-836EL1 backplanes have a single-port expander that accesses all hard
drives and supports cascading.
Dual Ports
BPN-SAS2-836EL2 backplanes have dual-port expanders that access all the
hard drives. These dual-port expanders support cascading, failover, and multipath
functionality.
U18
MH1
L1
EC20
A
4
JP1
1
1
EC3
3
B
C352
1
PWR4
PWR1
+5V
GND
GND
+12V
C411
+5V
GND
GND
+12V
EC19
PWR3
+5V
GND
GND
+5V
GND
GND
+12V
+12V
PWR2
MH3
Secondary
Expander 2
U18
EC1
MH1
L1
A
EC20
4
1
JP1
1
EC3
A
3
3
4
4
B
C352
1
PWR4
1
1
PWR1
C411
+5V
GND
GND
+12V
+5V
GND
GND
+12V
EC19
+
PWR3
+5V
GND
GND
+12V
+5V
GND
GND
+12V
PWR2
C353
C365
BCA160
BCA115
BCA111
BCA172
MH3
MDIO2
Figure 2EL-5. Dual Port Cascading Configurations
From HBA or higher
backplane
SEC_J2
SEC_J1
EC1
R284
J2
EC15
3
1
EC18
BCA185
A
BPN-SAS2-836EL2
3
4
4
REV 1.02
DESIGNED IN USA
C361
WWN
1
1
EC16
J19
1
+
C363
C353
C365
BCA160
BCA115
BCA111
BCA172
EC17
MDIO2
C351
BCA105
R249
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
SILKSCREEN
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
R R R R R R R R R R
R
PRIMARY-SIDE
DESINGER:
DESIGNED BY SUPERMICRO U.S.A.
www.supermicro.com
DATE:
2010 05 28
SAN JOSE,CA 95131
PROJECT NAME:
TEL:408-503-8000 FAX:408-503-8008
ports
To lower
backplane
in cascaded
system
SEC_J2
SEC_J1
R284
EC15
3
1
C421
EC18
BCA185
BPN-SAS2-836EL2
REV 1.02
DESIGNED IN USA
C361
WWN
BAR CODE
EC16
J19
1
C363
EC28
EC26
EC17
1
FAN1
4
C351
BCA105
R249
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
SILKSCREEN
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
UPER
R R R R R R R R R R
R
PRIMARY-SIDE
DESINGER:
Minh
DESIGNED BY SUPERMICRO U.S.A.
www.supermicro.com
DATE:
2010 05 28
REV:
1.02
SAN JOSE,CA 95131
PROJECT NAME:
BPN-SAS2-836EL2
TEL:408-503-8000 FAX:408-503-8008
C-27
Appendix C Backplane Specifications
PRI_J3
J1
MH9
4
4
1
3
3
C421
3
C182
EC5
EC12
1
1
1
U14
MH10
BAR CODE
EC11
C132
U3
C134
C121
BCA14
L41
EC28
EC26
MH12
L121
1
FAN1
4
L18
C60
C129
1
4
C119
FAN2
UNLESS OTHERWISE
SPECIFIED DIMENSIONS
ARE IN INCHES
Minh
TOLERANCES
DECIMAL
ANGLE
REV:
1.02
X
.1
30
XX
.03
MACH FINISH
XXX
.010
BPN-SAS2-836EL2
To lower
backplane
in cascaded
system
J1
PRI_J2
PRI_J3
MH9
4
4
1
3
3
3
EC5
C182
EC12
1
1
1
U14
MH10
EC11
C132
U3
C134
C121
BCA14
L41
MDIO1
MH12
L121
L18
1
C60
C129
1
C119
FAN2
4
UNLESS OTHERWISE
SPECIFIED DIMENSIONS
ARE IN INCHES
TOLERANCES
DECIMAL
ANGLE
X
.1
30
XX
.03
MACH FINISH
XXX
.010
To lower backplane in
cascaded system
From HBA or higher
backplane
J2
PRI_J2
MH6
FANFAIL_LED_DISABLE
MH4
FAN_MONITOR_DISABLE
PRI_J1
J1
C
C
C154
A
A
A
C
C
A
R162
OVERHEATFAIL1
MH5
WWN
D4
F3
MDIO1
C212
1
FAN3
4
1
1
2
J16
MH8
Primary ports
1
Expander
From HBA or higher
backplane
MH6
FANFAIL_LED_DISABLE
MH4
FAN_MONITOR_DISABLE
PRI_J1
C
C
C154
J0
A
A
A
C
C
A
R162
OVERHEATFAIL1
MH5
WWN
D4
F3
C212
1
FAN3
4
2
1
J16
MH8
Primary ports
Expander 1
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