Supermicro SC836BE1C-R1K23B User Manual page 117

Dual Port and Cascading Configurations
Single and Dual Port Expanders
SAS connectors PRI-J1 to J4 and SEC-J1 to J4 are bidirectional and can be treated
as input or output.
Single Ports
BPN-SAS3-836EL1 backplanes have a single port expander that accesses all of
the drives and supports cascading.
Secondary Expander
Not Present on EL1 Models
MH1
SEC-J4
S_ICE_HDR
J37
2 20
EC16
CG3 CG1
SEC_J3
1 19
L12
CG2
SEC-J3
SEC_J2 CG3 CG1
SEC-J2
CG2
MH2
EC15
CG3 CG1
BAR CODE
SEC_J1
CG2
SEC-J1
CG3 CG1
EC13 EC14
SEC_J0
CG2
S_HB_LED
S_SDB
A C
J36 1 4
J35
S_UART 1 4
26 25 20 15
10 5
4 H E A
H E A
1 4 1 PWR3
PWR4
1 1
2
J29 5 5
MH3
MH12
U48
9
1
S_MDIO
1 2 3
Figure 3EL-4. BPN-SAS3-836EL1 Single Port Configuration
Dual Ports
BPN-SAS3-836EL2 model backplanes have dual-port expanders that access all
of the hard drives. These dual-port expanders support cascading, failover, and
recovery.
Port B: Secondary Expander Ports
MH1
S_ICE_HDR
J37 2 20
EC16
CG3 CG1
SEC-J4
SEC_J3
1 19
L12
CG2
SEC-J3
SEC_J2 CG3 CG1
CG2
EC15
SEC-J2 CG3 CG1
BAR CODE
SEC_J1
CG2
CG3 CG1
SEC-J1
EC13 EC14
SEC_J0
CG2
S_HB_LED
S_SDB
A C
J36 1
J35
S_UART 1
4
1 4 1 PWR3
PWR4
2
J29
MH3
1
S_MDIO
1 2 3
From HBA#2 or
Higher Backplane
Figure 3EL-5. BPN-SAS3-836EL2 Dual Port Configuration
MH13
EC19 EC20
L10
L7
2 4
SMB
1 3
A
J17
C
SECONDARY EXPANDER
2 4
EC17 1
1 3
PRI_I2C1
WWN MH7
L6
HS1
AF
AE
Y
R
K
Y2 PWR2
E
A
1
1 4
PWR1
10
1
J34
S_JTAG
MH9
1 4
T
o Lower Backplane in
Cascaded System
MH13
EC19 EC20
L10
2 4
SMB
1 3
A
J17
MH2
SECONDARY EXPANDER
2 4
EC17 1
1 3
PRI_I2C1
WWN
HS1
AF
AE
Y
R
K
4
4 Y2
E
A
26 25 20 15 10 5 1
H E A
H E A 10
1
1 1 J34
S_JTAG
5 5
MH12
U48
9
Appendix C Backplane Specifications
MH5
P_SDB
L2
ACTLED1 1 J24 4 1 J19 P_UART P_HB_LED
D21
4
1 L4
A
C
EC1 EC2
PRI-J4
L5
L3
PRI-J3
EC3 EC4 J28
2 20
P_ICE_HDR
1 C21
MH11
PRI-J2
HS2
26
25
EC12
EC11
20
U1
15
PRI-J1
10
H E A
H E A
1 1 5
LT3
5 5 LT4
1
A E K R Y AE AF
U8
8
P_MDIO 2
9 L1
J27
1
J18
1
Y1
10
P_JTAG
Port A: Primary Expander Ports
MH5
P_SDB
L2
ACTLED1 1 J24 4 1 J19 P_UART P_HB_LED
D21
1 4
A
C
EC1 EC2
L7
C
EC3 EC4 J28
2 20
P_ICE_HDR
MH7
L6
1 C21
26
25
EC12
EC11
20
U1
15
PWR2
10
H E A
H E A
5
1 1
LT3
5 5
1 4 1
PWR1 A E K
U8
8
P_MDIO 2
9
MH9
J27
1
1 4
J18
1
10
P_JTAG
From HBA#1 or
Higher Backplane
C-49
Port A Primary Expander 1
To Lower Backplane
in Cascaded System
MH6 MH4
1 2 3
A C A C
5V_LED1
12V_LED1
BPN-SAS3-836EL2
EC10 EC9
REV 1.01
CG3 CG1
DESIGNED IN USA
PRI_J3
CG2
P_MDIO CG3
CG1
EC7 EC8 WWN
MH8
PRI_J2
CG2
CG3 CG1
PRI_J1
CG2
CG3 CG1
PRI_J0
CG2
MH10
EC5
EC6
From HBA or
Higher Backplane
To Lower Backplane in
Cascaded System
MH6 MH4
1 2 3
A C A C
L4 5V_LED1 12V_LED1
BPN-SAS3-836EL2
EC10 EC9
REV 1.01
PRI-J4
CG3 CG1
DESIGNED IN USA
L5
L3
PRI_J3
CG2
PRI-J3 P_MDIO CG3
CG1
EC7 EC8 WWN
PRI_J2
CG2
MH11
HS2
CG3 CG1
PRI-J2
PRI_J1
CG2
CG3 CG1
PRI-J1
LT4
R Y AE AF PRI_J0
CG2
EC5
EC6
L1
Y1
MH8
MH10