Supero Supero SAS2-847EL BACKPLANE User manual

Rev. 1.0a
SAS2-847EL BACKPLANE
USER'S GUIDE
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
SUPER ®

ii
SAS2-847EL Backplane User's Guide
Manual Revision 1.0
Release Date: June 28, 2010
The information in this User’s Manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
makes no commitment to update or to keep current the information in this manual, or to notify any
person or organization of the updates. Please Note: For the most up-to-date version of this
manual, please see our web site at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product
described in this manual at any time and without notice. This product, including software and
documentation, is the property of Supermicro and/or its licensors, and is supplied only under a
license. Any use or reproduction of this product is not allowed, except as expressly permitted by
the terms of said license.
IN NO EVENT WILLSUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO
USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. IN PARTICULAR, SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY
HARDWARE, SOFTWARE, OR DATASTORED OR USED WITH THE PRODUCT, INCLUDING THE
COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH
HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between manufacturer and customer shall be governed by the laws of Santa
Clara County in the State of California, USA. The State of California, County of Santa Clara shall
be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all
claims will not exceed the price paid for the hardware product.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”
WARNING: Handling of lead solder materials used in this
product may expose you to lead, a chemical known to
the State of California to cause birth defects and other
reproductive harm.
Unless you request and receive written permission from Super Micro Computer, Inc., you may not
copy any part of this document.
Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or mark
holders.
Copyright © 2010 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America

iii
Safety Information and Technical Specifications
Table of Contents
Contacting Supermicro........................................................................................v
Returning Merchandise for Service....................................................................vi
Chapter 1 Safety Guidelines
1-1 ESD Safety Guidelines ................................................................................... 1-1
1-2 General Safety Guidelines..............................................................................1-1
1-3 An Important Note to Users............................................................................ 1-2
1-4 Introduction to the SAS2-847EL Backplane....................................................1-2
Chapter 2 Connectors, Jumpers and LEDs
2-1 Front Connectors ............................................................................................ 2-1
2-2 Front Connector and Pin Definitions............................................................... 2-2
2-3 Front Jumper Locations and Pin Definitions...................................................2-4
Explanation of Jumpers ..................................................................................2-4
2-4 Front LED Indicators.......................................................................................2-6
2-5 Rear Connectors and LED Indicators............................................................. 2-7
Chapter 3 Dual Port and Cascading Configurations
3-1 Single and Dual Port Expanders.....................................................................3-1
Single Ports.....................................................................................................3-1
Dual Ports ....................................................................................................... 3-1
3-2 Failover............................................................................................................ 3-2
Single Host Bus Adapter................................................................................. 3-2
Single Host Bus Adapter Failover................................................................... 3-2
3-3 Failover with RAID Cards and Multiple HBAs ................................................ 3-3
Dual Host Bus Adapter ..................................................................................3-3
Dual Host Bus Adapter Failover...................................................................... 3-3
3-3 Chassis Power Card and Support Cables......................................................3-4
Chassis Power Card....................................................................................... 3-4
Connecting an Internal Host Bus Adapter to the Backplane .........................3-5
Supported Internal HBA Cables...................................................................... 3-5
Connecting an External Host Bus Adapter to the Backplane ........................ 3-7
Single External Host Bus Adapter ................................................................. 3-7
Dual External Host Bus Adapter .................................................................... 3-7
Supported External HBA to Backplane Cable ................................................3-8
Connecting Multiple Backplanes in a Single Channel Environment............... 3-9
Single HBA Configuration Cables.................................................................3-10
Connecting Multiple Backplanes in a Dual Channel Environment ................3-11

iv
SAS2-847EL Backplane User's Guide
Dual HBA Configuration Cables....................................................................3-12
3-4 Supported Cascading Configurations ........................................................... 3-13
Dual SAS HBA and Cascaded Configuration...............................................3-14

v
Safety Information and Technical Specifications
Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
Web Site: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
[email protected] (Customer Support)
Asia-Pacific
Address: Super Micro Computer, Inc.
4F, No. 232-1, Liancheng Rd.
Chung-Ho 235, Taipei County
Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]
Web Site: www.supermicro.com.tw
Technical Support:
Email: [email protected]
Tel: [phone]

vi
SAS2-847EL Backplane User's Guide
Returning Merchandise for Service
A receipt or copy of your invoice marked with the date of purchase is required be-
fore any warranty service will be rendered. You can obtain service by calling your
vendor for a Returned Merchandise Authorization (RMA) number. When returning
to the manufacturer, the RMA number should be prominently displayed on the
outside of the shipping carton, and mailed prepaid or hand-carried. Shipping and
handling charges will be applied for all orders that must be mailed when service
is complete.
For faster service, RMA authorizations may be requested online (http://www.
supermicro.com/support/rma/).
Whenever possible, repack the backplane in the original Supermicro box, using the
original packaging materials. If these are no longer available, be sure to pack the
backplane in an anti-static bag and inside the box. Make sure that there is enough
packaging material surrounding the backplane so that it does not become damaged
during shipping.
This warranty only covers normal consumer use and does not cover damages in-
curred in shipping or from failure due to the alteration, misuse, abuse or improper
maintenance of products.
During the warranty period, contact your distributor first for any product problems.

1-1
Safety Information and Technical Specifications
Chapter 1
Safety Guidelines
To avoid personal injury and property damage, carefully follow all the safety steps
listed below when accessing your system or handling the components.
1-1 ESD Safety Guidelines
Electrostatic Discharge (ESD) can damage electronic components. To prevent dam-
age to your system, it is important to handle it very carefully. The following measures
are generally sufficient to protect your equipment from ESD.
Use a grounded wrist strap designed to prevent static discharge.
•
Touch a grounded metal object before removing a component from the antistatic•
bag.
Handle the backplane by its edges only; do not touch its components, peripheral
•
chips, memory modules or gold contacts.
When handling chips or modules, avoid touching their pins.
•
Put the backplane and peripherals back into their antistatic bags when not in•
use.
1-2 General Safety Guidelines
Always disconnect power cables before installing or removing any components•
from the computer, including the backplane.
Disconnect the power cable before installing or removing any cables from the
•
backplane.
Make sure that the backplane is securely and properly installed on the mother-
•
board to prevent damage to the system due to power shortage.

1-2
SAS2-847EL Backplane User's Guide
1-3 An Important Note to Users
All images and layouts shown in this user's guide are based upon the latest PCB
revision available at the time of publishing. The card you have received may or may
not look exactly the same as the graphics shown in this manual.
1-4 Introduction to the SAS2-847EL Backplane
The SAS2-847EL backplane has been designed to utilize the most up-to-date tech-
nology available, providing your system with reliable, high-quality performance.
This manual reflects SAS2-847EL1 and SAS2-847EL2 Revision 1.01, the most
current release available at the time of publication. Always refer to the Supermicro
Web site at www.supermicro.com for the latest updates, compatible parts and sup-
ported configurations.
The SAS2-847EL1 backplane includes a primary expander chip and primary SAS
connectors. The SAS2-847EL2 includes of both primary and secondary expander
chips, as well as primary and secondary SAS connectors. The primary and second-
ary expanders are redundant, so that if one should fail, the other will take over.

2-1
Safety Information and Technical Specifications
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
Chapter 2
Connectors, Jumpers and LEDs
2-1 Front Connectors
Front Connectors
Primary I1. 2C connector: PRI_I2C1
Power connectors: PWR1, PWR2, PWR3, PWR4, PWR5, and PWR62.
Primary expander chip3.
Secondary expander chip (Not available in EL1 backplane)4.
EPP connectors: J21 and J245.
Fan connectors: FAN1, FAN2, FAN3 and FAN46.
Primary SAS port: PRI_J07.
Primary SAS port: PRI_J18.
Secondary SAS port: SEC_J0 (Not available in EL1 backplane)9.
Secondary SAS port SEC_J1 (Not available in EL1 backplane)10.
Primary Ethernet port: J2211.
Secondary Ethernet port: J2312.
Figure 2-1: Front Connectors
1
1
1
9
1
8
1
7
1
6
1
6
1
6
1
6
1
5
1
5
1
41
3
1
2
1
2
1
21
21
2
1
2
1
10
1
12 1 11

2-2
SAS2-847EL Backplane User's Guide
1. Primary I2C Connector
TheI2Cconnectorisusedtomonitorthepower
supplystatusandtocontrolthe fans.Seethe
table on the right for pin definitions.
I2C Connector
Pin Definitions
Pin# Definition
1 Data
2 Ground
3 Clock
4 No Connection
2-2 Front Connector and Pin Definitions
Backplane
Main Power
4-Pin Connector
Pin# Definition
1 +12V
2 and 3 Ground
4 +5V
2. Backplane Main Power Connectors
The 4-pin connectors, designated PWR1,
PWR2, PWR3, PWR4, PWR5, and PWR6,
provide power to the backplane. See the
table on the right for pin definitions.
3. and 4. Primary and Secondary Expander
Chips
This primary and secondary expander chips
allow the backplane to support dual ports,
cascading, and failover.
5. EPP Ports
The EPP ports are used for manufacturer's
diagnostic purposes only.

2-3
Safety Information and Technical Specifications
6. Fan Connectors
The 4-pin connectors, designated FAN1,
through FAN4, provide power to the fans.
See the table on the right for pin defini-
tions.
Fan Connectors
Pin# Definition
1 Ground
2 +12V
3 Tachometer
4 Empty
7. - 10. SAS Ports
The primary and secondary sets of SAS
ports provide expander features including
cascading and failover. From right to left the
ports are Primary 0, Primary 1 and Second-
ary 0, Secondary 1. Note that secondary
SAS ports are not present on the SAS2-
847EL1 backplane.

2-4
SAS2-847EL Backplane User's Guide
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
2-3 Front Jumper Locations and Pin Definitions
Explanation of Jumpers
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the function
of the connector. Pin 1 is identified with
a square solder pad on the printed circuit
board. Note: On two pin jumpers, "Closed"
means the jumper is on and "Open" means
the jumper is off the pins.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
+12V GNDGND
PWR1
+
1 3
PRI_MODE2 1
3
PRI_MODE1
F
1
FAN3
14
C
A
OVERHEATFAIL1
FAN_MONITOR_
DISABLE
BUZZER_ENB1
UART_P1
EXPDBG1
UART_S1
JP1
ACTLED1
MDI01
MDI02
EXPDBG2 FANFAIL_LED_
DISABLE
PRI_MODE2
SEC_MODE1
SEC_MODE2
PRI_MODE1
Figure 2-2: Front Jumper Locations and Pin Defimitions

2-5
Safety Information and Technical Specifications
General Jumper Settings
Jumper Jumper Settings Note
PRI_MODE1 and 2 Pins 2-3 Factory Setting
Do not change
SEC_MODE1 and 2 Pins 2-3 Factory Setting
Do not change
MDI01 and 02 No jumper required SMC internal use only
UART_P1 No jumper required Primary UART connector
UART_S1 No jumper required Secondary UART connector
(Not present on SAS2-847E2)
JP1 No jumper required Buzzer connector
BUZZER_ENB1 Open: Disable
Closed: Enable Buzzer enable*
ACTLED1 Open: Disable
Closed: Enable For manufacturing use only
FAN_MONITOR_DIS-
ABLE Open: Enable Closed: Disable Fan monitor settings
FANFAIL_LED_DIS-
ABLE Open: Enable Closed: Disable Disables the fan failure LED
EXPDBG1 N/A For manufacturing use only.
EXPDBG2 N/A For manufacturing use only.
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
Hard drive failure1.
Fan failure2.
System temperature over 45º Celsius.3.

2-6
SAS2-847EL Backplane User's Guide
2-4 Front LED Indicators
Figure 2-3: Front LED Indicators
Front LEDs
LED Default
State Specification
5V_LED1 On Blue LED indicates a backplane power failure.
Light is on during normal operation
12V_LED2 On Blue LED indicates a backplane power failure.
Light is on during normal operation.
OVERHEATFAIL1 Off Red LED indicates an overheated condi-
tion. Light is off during normal operation
FANFAIL1 Off Red LED indicates a fan failure. Light is
off during normal operation
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
FANFAIL1
OVERHEATFAIL1 12V_LED1
5V_LED1

2-7
Safety Information and Technical Specifications
9
78
33 21
22
J15
J20
22
21
3327
8
7
9
J19
22
21
3327
87
9
J18
22
213327
8
7
9
7 8
21
22
J17
9
78
21
22
J16
J10
J9
J4
J3
J2
J1
J0
J5
9
78
27 33
21
22
J14
9
78
27 33 21
22
J13
9
7 8
21
22
J12
J8
J7
J6
R79
R77
SEC_FLASH1
PRI_FLASH1
TP28
C
A
ACT20
C
A
FAIL2 0
C
A
ACT19
C
A
FAIL19
C
A
ACT18
C
A
FAIL18
C
A
ACT17
C
A
FAIL17
C
A
ACT16
C
A
FAIL16
C
A
ACT15
C
A
FAIL15
C
A
ACT10
C
A
FAIL10
C
A
ACT9
C
A
FAIL9
ACT4
A
C
FAIL4
A
C
ACT3
A
C
FAIL3
A
C
ACT0
A
C
FAIL0
A
C
ACT2
A
C
FAIL2
A
C
ACT1
A
C
FAIL1
A
C
C
A
ACT14
C
A
FAIL14
C
A
ACT13
C
A
FAIL13
ACT6
A
C
ACT5
A
C
ACT7
A
C
ACT8
A
C
ACT11
A
C
FAIL5
A
C
FAIL6 A
C
FAIL7
A
C
FAIL8
A
C
FAIL11
A
C
FAIL12
A
C
ACT12
A
C
#20
#19
#18
#17
#16
#15
#14
#13
#12
#11
#10
#9
#8
#7
#6
#5
#4
#3
#2
#1
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
SAS
#0
27
7
933
8
21
22
27 33 9 21
27
7
33 9
8
21
22
7
33 9
8
21
22
7
933
8
21
22
27
7
933
8
21
22
7
9
8
21
22
27
7
9
33
8
21
22
27
7
33 9
8
21
22
78 22
21
27
78
33 9
22
21
933
27
78 22
21
2-5 Rear Connectors and LED Indicators
Rear SAS/SATA Connectors
Rear
Connector SAS Drive Number Rear Connector SAS Drive Number
SAS #0 SAS/SATA HDD #0 SAS #11 SAS/SATA HDD #11
SAS #1 SAS/SATA HDD #1 SAS #12 SAS/SATA HDD #12
SAS #2 SAS/SATA HDD #2 SAS #13 SAS/SATA HDD #13
SAS #3 SAS/SATA HDD #3 SAS #14 SAS/SATA HDD #14
SAS #4 SAS/SATA HDD #4 SAS #15 SAS/SATA HDD #15
SAS #5 SAS/SATA HDD #5 SAS #16 SAS/SATA HDD #16
SAS #6 SAS/SATA HDD #6 SAS #17 SAS/SATA HDD #17
SAS #7 SAS/SATA HDD #7 SAS #18 SAS/SATA HDD #18
SAS #8 SAS/SATA HDD #8 SAS #19 SAS/SATA HDD #19
SAS #9 SAS/SATA HDD #9 SAS #20 SAS/SATA HDD #20
SAS #10 SAS/SATA HDD #10
SAS #1
SAS #0
SAS #2
SAS #3
SAS #7
SAS #6
SAS #8
SAS #9
SAS #13
SAS #12
SAS #14
SAS #15
SAS #19
SAS #18
SAS #20
SAS #4 SAS #10 SAS #16
SAS #5 SAS #11 SAS #17
Figure 2-4: Rear Connectors

2-8
SAS2-847EL Backplane User's Guide
Rear LED Indicators
Rear Connector Hard Drive Activity LED Failure LED
SAS #0 ACT #0 FAIL #0
SAS #1 ACT #1 FAIL #1
SAS #2 ACT #2 FAIL #2
SAS #3 ACT #3 FAIL #3
SAS #4 ACT #4 FAIL #4
SAS #5 ACT #5 FAIL #5
SAS #6 ACT #6 FAIL #6
SAS #7 ACT #7 FAIL #7
SAS #8 ACT #8 FAIL #8
SAS #9 ACT #9 FAIL #9
SAS #10 ACT #10 FAIL #10
SAS #11 ACT #11 FAIL #11
SAS #12 ACT #12 FAIL #12
SAS #13 ACT #13 FAIL #13
SAS #14 ACT #14 FAIL #14
SAS #15 ACT #15 FAIL #15
SAS #16 ACT #16 FAIL #16
SAS #17 ACT #17 FAIL #17
SAS #18 ACT #18 FAIL #18
SAS #19 ACT #19 FAIL #19
SAS #20 ACT #20 FAIL #20

3-1
Safety Information and Technical Specifications
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
BPN-SAS2-847EL2
REV: 1.01
DESIGNED IN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
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 Configurations
To lower backplane in
cascaded system
Figure 3-1: Single and Dual Port Cascading Configurations
Dual Ports
SAS2-847EL2 backplanes have dual-port expanders that access all the hard drives.
These dual-port expanders support cascading, failover, and multipath.

3-2
SAS2-847EL Backplane User's Guide
Single Host Bus Adapter
In a single host bus configuration, the
backplane connects to one Host Bus
Adapter (HBA).
BPN-SAS2-847EL2
REV: 1.01
DESIGNEDIN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
BPN-SAS2-847EL2
REV: 1.01
DESIGNEDIN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
SAS HBA
SAS HBA
Primary ports
Expander 1
Primary ports
Expander 1
Secondary ports
Expander 2
Secondary ports
Expander 2
The SAS2-847EL2 backplane has two expanders which allow effective failover.
3-2 Failover
Single Host Bus Adapter
Failover
If the expander or data path in the
primary ports fails, the system automati-
cally switches to the secondary ports.
Figure 3-2: Single HBA Failover Configurations

3-3
Safety Information and Technical Specifications
Primary ports
Expander 1
Primary ports
Expander 1
Secondary ports
Expander 2
Secondary ports
Expander 2
BPN-SAS2-847EL2
REV: 1.01
DESIGNEDIN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
BPN-SAS2-847EL2
REV: 1.01
DESIGNEDIN USA
L1
L2
+
++
+
C365
+
C353
+
C352
+
C134
+
C133
+
+
C121
+
+
+5V
+12V GNDGND
PWR3
+5V
+12V GNDGND
PWR1
+5V
+12V GNDGND
PWR2
+5V
+12V GNDGND
PWR4
+5V+12V GNDGND
PWR5
+5V+12V GNDGND
PWR6
+
EC20
+
EC27
++
EC29
+
+
EC16 EC8
+
EC9
+
+
EC7
+
EC4
+
EC15
+
+
EC13
+
EC17
+
EC14
+
+
+
EC12
++
EC21
+
EC22
C361
+
C362 +
EC6
+
C363
+
C130
C129
41
JP1
Q4
U24
U18
PRI_I2C1
EXPDBG2
1
1
4
UART_S1
1
4
EXPDBG1
1
4
UART_P1
1 3
PRI_MODE2 1
3
PRI_MODE1
31
SEC_MODE1
SEC_MODE2
31
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
14FAN_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
FANFAIL1
A
C
12V_LED1
A
C
5V_LED1
A
C
ACT21
AC
2
1
J21
J24
8
BAR CODE
BAR CODE
WWN
WWN
J22
1 8
J
2
3
SAS HBA
SAS HBA
SAS HBA
SAS HBA
Dual Host Bus Adapter
In a Dual Host Bus Configuration, the
backplane connects to two Host Bus
Adapters.
Dual Host Bus Adapter
Failover
If the expander or data path in the
primary ports fails, the system auto-
matically switches to the secondary
ports. This maintains a full connection
to all drives. Note that this configura-
tion requires additional MPIO software.
Contact your Supermicro authorized
representative for details.
Figure 3-3: Dual HBA Failover Configurations
3-3 Failover with RAID Cards and Multiple HBAs
The SAS-836EL backplane may be configured for failover with multiple HBAs using
either RAID controllers or HBAs to acheive failover protection.
RAID Controllers: If RAID controllers are used, then the failover is accomplished
through port failover on the same RAID card.
HBAs: If multiple HBAs are used to achieve failover protection and load balancing,
Linux MPIO software must be installed and correctly configured to perform
the load balancing and failover tasks.
IMPORTANT: For RAID controllers, redundancy is achieved
through port failover. For multiple HBAs MPIO software is
required to achieve failover protection.
!

3-4
SAS2-847EL Backplane User's Guide
3-3 Chassis Power Card and Support Cables
Power Card
Part Number Part Type Where Used
CSE-PTJBOD-CB2 Power card Allows the chassis to be in a JBOD (Just a Bunch of Drives)
system.
Chassis Power Card
In a cascaded configuration, the first chassis includes a motherboard and at least
one Host Bus Adapter (HBA). Other servers in this enclosed system, include a
power card. This section describes the supported power card for the SAS-847EL1/
EL2 backplane.
+
C38
Q1
BUZZER1
+
J1
1 12
13 24
R31
R24
R22
R23
R19
R4
R14
R11
R1R2
R12
R16
R13
R7
R3
R15
R5 R6 R8
R17
R92
R93
R94
R18
R20
R21
R70
F5
F9
F8
F7
F4
F3
F2
F1
C1
C3
U9
U6 D314
D315 D316
U3
U1
+
EC3
+
EC2
+
EC1
C37
C4
C2
C33
C35
C36
D1
AC
MH4
MH3
MH2
MH1
JF1
1
2
19
20
C22
U7
J17
15
4
1
FAN8/X
4
1
FAN7/X
4
1
FAN6/X
4
1
FAN5/X
41
FAN1
41
FAN2
41
FAN3
41
FAN4
I2C
321
U2
U4
U8
C39
C659
J13
1
U92
BAR CODE
JP7
X
HDD PWR NMI
LEDLED
NIC1
PWR
OH
/FF
NIC2
PWR
FAIL
RST
ON
REV 1.01
CSE-PTJBOD-CB2
Figure 3-4: Chassis Power Card (Sold Separately)