
5-1
Safety Information and Technical Specications
Chapter 5
Cascading Congurations
5-1 Cascading Conguration Overview
The SC847 chassis backplanes can be congured in a variety of combinations for
different applications. The following sections will provide connectivity conguration
options specic to your system.
5-2 Parallel Connectivity for Performance
The following conguration increases the SC847's performance capabilities by
utilizing parallel connectivity with SAS or SATA hard drives and a single expander
backplane.
Figure 5-1: Parallel Connectivity for Increased Performance
2
1
1 2
+
+
+
+
3
1
1
3
+
+
+
+
+
+
+
+
+
AC
A C
A
C
1
GND GND
+12V
+5V
GND
GND
+12V
+5V
GNDGND
+12V
+5V
BAR CODE
WWN
SAS826EL
REV 1.02
DESIGNED IN USA
WWN
OVERHEATFAIL1
A
C
BUZZER_ENB1
PRI_MODE4
SEC_MODE4
FANFAIL1
12V_LED
5V_LED
REMOTE_FAN_FAIL_SCOKET
SEC_J2 SEC_J1 SEC_J0 PRI_J2 PRI_J1 PRI_J0
EC8
EC22
EC20
S_J1
P_J1
L1
SEC_MODE1
PRI_MODE1
SEC_IPMI1
PRI_IPMI1
PRI_I2C1
SEC_I2C1
J25
SEC_FLASH1
PRI_FLASH1
PRI_EXP1
SEC_EXP1
FAN2
FAN1
R227
BUZZER1
5V_LED1
OVERHEATFAIL1
FANFAIL1
BUZZER_ENB1
REMOTE_FAN_FAIL_SOCKET1
PWR6
PWR4
PWR5
PWR3
PWR2
PWR1
BAR CODE
+
+
2
A
C
A
C
A C A C
+5V
+12V
GND
GND
+5V+12V GNDGND
+5V+12V GNDGND
+5V
+12V
GND
GND +5V
+12V
GND
GND
+5V+12V
GND
GND
WWN
WWN
DESIGNED IN USA
REV 1.01
SAS846EL2
1J24
2
SEC_J2 SEC_J1 SEC_J0 PRI_J2 PRI_J1 PRI_J0
EC8
EC22
EC20
S_J1
P_J1
L1
SEC_MODE1
PRI_MODE1
SEC_IPMI1
PRI_IPMI1
PRI_I2C1
SEC_I2C1
J25
SEC_FLASH1
PRI_FLASH1
PRI_EXP1
SEC_EXP1
FAN2
FAN1
R199
R227
R210
BUZZER1
5V_LED1
OVERHEATFAIL1
FANFAIL1
BUZZER_ENB1
REMOTE_FAN_FAIL_SOCKET1
PWR6
PWR4
PWR5
PWR3
PWR2
PWR1
BAR CODE
+
+
2
A
C
A
C
A C A C
+5V
+12V
GND
GND
+5V+12V GNDGND
+5V+12V GNDGND
+5V
+12V
GND
GND +5V
+12V
GND
GND
+5V+12V
GND
GND
WWN
WWN
DESIGNED IN USA
REV 1.01
SAS846EL2
RAID Cards
CBL-0281L
CBL-0352L-LP
SAS-846EL
SAS-826EL
J0
J1
J0
J2
Chassis SC847-EL1
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