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3-1
Safety Information and Technical Specifi cations
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
+
+
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V
GND
GND
PWR3
+5V
+12V
GND
GND
PWR1
+5V
+12V
GND
GND
PWR2
+5V
+12V
GND
GND
PWR4
+5V
+12V
GND
GND
PWR5
+5V
+12V
GND
GND
PWR6
+
EC20
+
EC27
+
+
EC29
+
+
EC16
EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
+
+
EC21
+
EC22
C361
+
C362
+
EC6
+
C363
+
C130
C129
4
1
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UA
RT_P1
1
3
PRI_MODE2
1
3
PRI_MODE1
3
1
SEC_MODE1
SEC_MODE2
3
1
U4
5
Y
E
20
R
K
10
15
AE
25
28
AH
U3
5
Y
E
20
R
K
10
15
AE
25
28
AH
FAN4
1
4
4
1
FAN1
FAN2
1
4
FAN3
1
4
FAN_MONITOR_DISABLE
1
BUZZER_ENB1
1
FANFAIL_LED_DISABLE
1
MDIO2
1
ACTLED1
1
MDIO1
C54
BC17
BC61
SEC_J1
PRI_J1
SEC_J0
PRI_J0
R28
R31
R42
EC3
+
EC2
+
EC5
EC32
+
EC33
+
D9
C
A
OVERHEATFAIL1
C
A
ACT22
FANF
AIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
A
C
2
1
J21
J24
8
BAR CODE
BAR C
ODE
WWN
WWN
J22
1
8
J23
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
+
+
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V
GND
GND
PWR3
+5V
+12V
GND
GND
PWR1
+5V
+12V
GND
GND
PWR2
+5V
+12V
GND
GND
PWR4
+5V
+12V
GND
GND
PWR5
+5V
+12V
GND
GND
PWR6
+
EC20
+
EC27
+
+
EC29
+
+
EC16
EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
+
+
EC21
+
EC22
C361
+
C362
+
EC6
+
C363
+
C130
C129
4
1
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UA
RT_P1
1
3
PRI_MODE2
1
3
PRI_MODE1
3
1
SEC_MODE1
SEC_MODE2
3
1
U4
5
Y
E
20
R
K
10
15
AE
25
28
AH
U3
5
Y
E
20
R
K
10
15
AE
25
28
AH
FAN4
1
4
4
1
FAN1
FAN2
1
4
FAN3
1
4
FAN_MONITOR_DISABLE
1
BUZZER_ENB1
1
FANFAIL_LED_DISABLE
1
MDIO2
1
ACTLED1
1
MDIO1
C54
BC17
BC61
SEC_J1
PRI_J1
SEC_J0
PRI_J0
R28
R31
R42
EC3
+
EC2
+
EC5
EC32
+
EC33
+
D9
C
A
OVERHEATFAIL1
C
A
ACT22
FANF
AIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
A
C
2
1
J21
J24
8
BAR CODE
BAR C
ODE
WWN
WWN
J22
1
8
J23
J1
J1
J1
Secondary
ports
Expander 2
From HBA or
higher backplane
From HBA or
higher backplane
From HBA or
higher backplane
To lower
backplane
in cascaded
system
To lower
backplane
in cascaded
system
Primary
ports
Expander 1
Primary ports
Expander 1
J0
J0
J0
3-1 Single and Dual Port Expanders
Single Ports
SAS2-847EL1 backplanes have a single-port expander that access all hard drives
and supports cascading.
Chapter 3
Dual Port and Cascading Confi gurations
To lower backplane in
cascaded system
Figure 3-1: Single and Dual Port Cascading Confi gurations
Dual Ports
SAS2-847EL2 backplanes have dual-port expanders that access all the hard drives.
These dual-port expanders support cascading, failover, and multipath.