SUPER®

BUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

B2

B1

B3

FANFAIL1

WWN

A2

A
R658
OVERHEATFAIL1

A1

C A

5V_LED
C A
R659
R1

SEC_J1

PRI_J2

PRI_J1

PRI_J0

12V_LED
C A

A3

PRI_BLINKSEC_J0
SEC_BLINKCREMOTE_FAN_FAIL_SCOKET
PRI_IPMIPRI_I2CR2
FAN_ALERT_EN1

SEC_J2

SEC_I2C

SEC_IPMIPRI_EXPPRI_MODE4BAR CODEPRI_EEPROM

SEC_EEPROM

1
1
PRI_MODE5

SEC_MODE4

SEC_FLASHPRI_FLASH

1

SEC_MODE5

FAN1
+5V

+12V

GND

GND

+5V

GND

GND

PWR3

+12V

+5V

GND

GND

PWR2

+12V

+5V

GND

GND

PWR1

+12V

FAN3

FAN2

PWR0

FAN4

BUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

FANFAIL1

WWN

A2

A1

A
R658
OVERHEATFAIL1

PRI_MODE4PRI_J1C A

5V_LEDC A
R659
R1

12V_LEDC A

A3C

REMOTE_FAN_FAIL_SOCKETPRI_IPMIPRI_I2C

R2

220

PRI_ICE

19

1

PRI_UART

C516

1
1
PRI_SEPBAR CODEPRI_EEPROM

1
1

PRI_J0
PRI_EXPFAN_ALERT_EN1

PRI_BLINKPRI_J2

SEC_BLINK

C518

C520

R578

SEC_MODE4

PRI_FLASH
1
SEC_UART1
SEC_SEP
SEC_MODE5

FAN1
+5V

GND

GND

+12V

PWR3

+5V

GND

GND

+12V

PWR2

+5V

GND

GND

+12V

PWR1

+5V

GND

GND

+12V

PWR0

FAN2

FAN3

SAS-933EL SERIES BACKPLANE

USER'S GUIDE
Rev. 1.0d

FAN4

SAS-933EL Backplane User's Guide
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 thismanual, please see our web site at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the productdescribed in this manual at any time and without notice. This product, including software anddocumentation, is the property of Supermicro and/or its licensors, and is supplied only under alicense. Any use or reproduction of this product is not allowed, except as expressly permitted by
the terms of said license.
IN NO EVENT WILL SUPERMICRO 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 DATA STORED 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 shallbe 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 thisproduct may expose you to lead, a chemical known to
the State of California to cause birth defects and otherreproductive harm.

Manual Revision 1.0d
Release Date: February 15, 2011
Unless you request and receive written permission from Super Micro Computer, Inc., you may notcopy 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 markholders.
Copyright © 2011 by Super Micro Computer, Inc.
All rights reserved.

Printed in the United States of AmericaiiSafety Information and Technical Specifications

Table of Contents

SAS-933EL SERIES BACKPLANE
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 SAS-933EL Backplane...................................................... 1-2

Chapter 2 Connectors, Jumpers and LEDs
2-1

Front Connectors and Jumpers ...................................................................... 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 .................................................................................. 2-5
Front LED Indicators ....................................................................................... 2-6

2-4

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
SAS-933EL1 Single Port Backplane ............................................................... 3-1
SAS-933EL2 Dual Port Backplane ................................................................. 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

3-4

Cables and Chassis Power Card .................................................................... 3-4
Chassis Power Card ....................................................................................... 3-4
Connecting an Internal Host Bus Adapter to the Backplane ......................... 3-5
Supported Internal HBA to Backplane Cables ................................................ 3-6
Connecting an External Host Bus Adapter to the Backplane ........................ 3-8
Supported External HBA to Backplane Cable ................................................ 3-9
Connecting Multiple Backplanes in a Single Channel Environment ............. 3-10
Single HBA Conguration ............................................................................... 3-10iii

SAS-933EL Backplane User's Guide
Single HBA Configuration Cables ..................................................................3-11
Connecting Multiple Backplanes in a Dual Channel Environment ............... 3-12
Dual HBA Conguration Cables...................................................................... 3-13
3-5

Supported Cascading Configurations ........................................................... 3-14
Server System with Single SAS HBA ........................................................... 3-15
Server System with Dual SAS HBA and Cascading Configuration .............. 3-16
Server System with Dual SAS HBA.............................................................. 3-17
Dual Cable Routing ....................................................................................... 3-18
External Cables ............................................................................................. 3-18

iv

Safety Information and Technical Specifications

Contacting Supermicro
Headquarters
Address:

Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.

Tel:+1 (408) 503-8000

Fax:+1 (408) 503-8008

Email:

marketing@supermicro.com (General Information)
support@supermicro.com (Technical Support)

Web Site:www.supermicro.com

EuropeAddress:

Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML's-Hertogenbosch, The NetherlandsTel:+31 (0) 73-6400390

Fax:+31 (0) 73-6416525

Email:

sales@supermicro.nl (General Information)
support@supermicro.nl (Technical Support)
rma@supermicro.nl (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:+886-(2) 8226-3990

Fax:+886-(2) 8226-3991

Web Site:www.supermicro.com.tw

Technical Support:
Email:

support@supermicro.com.tw

Tel:886-2-8226-1900v

SAS-933EL Backplane User's Guide

Returning Merchandise for Service
A receipt or copy of your invoice marked with the date of purchase is required before any warranty service will be rendered. You can obtain service by calling yourvendor for a Returned Merchandise Authorization (RMA) number. When returning
to the manufacturer, the RMA number should be prominently displayed on theoutside of the shipping carton, and mailed prepaid or hand-carried. Shipping andhandling 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 theoriginal 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 enoughpackaging 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 incurred 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.

vi

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 damage 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 antistaticbag.

• 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 card 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 motherboard to prevent damage to the system due to power shortage.

1-1

SAS-933EL 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 SAS-933EL Backplane

The SAS-933EL backplane has been designed to utilize the most up-to-date technology available, providing your system with reliable, high-quality performance.
This manual reflects SAS-933EL Revision 1.12 the most current release available atthe time of publication. Always refer to the Supermicro Web site at www.supermicro.
com for the latest updates, compatible parts and supported configurations.

1-2

Safety Information and Technical Specifications

Chapter 2
Connectors, Jumpers and LEDs

2-1

Front Connectors and Jumpers

1

2
BUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

B1

B3

SEC_J0

SEC_J1

SEC_BLINKAR658
OVERHEATFAIL1

A1

PRI_J2C A

5V_LEDC A
R659
R1

12V_LEDC ACREMOTE_FAN_FAIL_SCOKET
PRI_IPMI

A3

PRI_I2CR2

PRI_J1

PRI_J0
PRI_EXPSEC_EEPROM

1
1

FANFAIL1

WWN

A2

PRI_BLINK

B2

FAN_ALERT_EN1

SEC_J2

BAR CODEPRI_EEPROM

1

SEC_I2C

SEC_IPMIPRI_MODE4

PRI_MODE5

SEC_MODE4

SEC_FLASHPRI_FLASH

1

SEC_MODE5

12

6
FAN1
+5V

+12V

GND

GND

+5V

GND

+12V

GND

PWR3

+5V

GND

GND

+12V

PWR2

+5V

GND

GND

4

+12V

PWR1

PWR0

9

10

11

3

5

FAN2

7

8

3

2
5

FAN3

FAN4

6

6

6

Figure 2-1: SAS-933EL2 Backplane

Front Connectors
BUZZER_ENB1+

BUZZER_ENB1

SAS933EL+

B2

SAS933EL

BUZZER1

WWN

REV 1.12

SEC_J2

SEC_I2C

SEC_IPMI

B1

SEC_J0

SEC_BLINKB3REMOTE_FAN_FAIL_SCOKET
PRI_IPMI

5V_LED
C A
R659
R1

PRI_I2C

12V_LEDC A

A3C

REMOTE_FAN_FAIL_SOCKETPRI_IPMIBAR CODEPRI_EXPC516

PRI_I2CR2
FAN_ALERT_EN1

C518

C
R2

FANFAIL1
C A

2

20

PRI_ICE

19

1

BAR CODEPRI_EEPROM

1
1
PRI_SEP

12V_LEDC A

A3

PRI_J1

PRI_J0

PRI_EEPROM

1
1

5V_LED
C A
R659
R1

A
R658
OVERHEATFAIL1

A1

8. SAS connectors: PRI_A1

PRI_UART

SEC_MODE4PRI_EXPPRI_BLINKPRI_J2

SEC_EEPROM

PRI_MODE4

PRI_MODE5C A

PRI_J1

PRI_J0WWN

A2

SEC_BLINK

1

A
R658
OVERHEATFAIL1

A1

PRI_J2

PRI_MODE41

FANFAIL1

WWN

A2

7. SAS connectors: PRI_A3
PRI_BLINKSEC_J1WWN

REV 1.12

FAN_ALERT_EN1

1. Primary and secondary I2C connectors (optional)
BUZZER1

SEC_FLASHPRI_FLASH

1

R578

SEC_MODE4C520

2. Primary and secondary flash chip

9. SAS connectors: PRI_A2

SEC_MODE51

SEC_UART1
SEC_SEP
SEC_MODE5

3. Primary and secondary expander chip
FAN1

10. SAS connectors: SEC_B3 (not available in EL1 single port backplane)

4. Power connectors: PWR0, PWR1,
PWR2, and PWR3

+5V

+12V

GND

GND

+5V

GND

GND

+12V

+5V

GND

GND

+12V

+5V

GND

GND

PRI_FLASH

+12V

FAN1

5. EPP connectors: J15 and J16

11. SAS connectors: SEC_B1 (not available in EL1 single port backplane)

6. Fan connectors: Fan1, Fan2, Fan3,
and Fan4

12. SAS connectors: SEC_B2 (not available in EL1 single port backplane)+5V PWR3 GND+5V PWR2 GND

+12V

GND

GND

PWR3

+5VPWR1 GND

+12V

GND

PWR2

+5VPWR0 GND

+12V

GND

PWR1

FAN3

FAN2

+12V

FAN4

FAN3

FAN2

PWR0

FAN4

1
BUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

FANFAIL1

WWN

A2

A1

A
R658
OVERHEATFAIL1

C A

5V_LEDC A
R659
R1

12V_LEDCREMOTE_FAN_FAIL_SOCKETPRI_IPMIPRI_I2CR2
FAN_ALERT_EN1

PRI_EXP2

20

PRI_ICE

19

1

PRI_UART

C516

1
1
PRI_SEPBAR CODEPRI_EEPROM

1
1

PRI_J1

PRI_J0

C A

A3

PRI_BLINKPRI_J2

SEC_BLINKPRI_MODE4

C518

C520

R578

SEC_MODE4

PRI_FLASH
1
SEC_UART1
SEC_SEP

9

SEC_MODE5

3

6
FAN1
+5V

GND

GND

+12V

PWR3

+5V

GND

GND

+12V

PWR2

+5V

GND

GND

+12V

PWR1

+5V

GND

GND

+12V

PWR0

4

8

3

FAN2

FAN3

6

6

Figure 2-2: SAS-933EL1 Backplane

2-1

7

2
5

FAN4

6

SAS-933EL Backplane User's Guide

2-2

Front Connector and Pin Definitions

1. Primary and Secondary I2C Connectors

I2C Connector
Pin Definitions

The I2C connectors are used to monitor the
power supply and to control the fans. See

Pin#Definition

the table on the right for pin definitions. There
are two connectors, one primary and one

1

Data

2

Ground

3

Clock

4

No Connection

secondary.
These connectors are optional and should only
be used by qualified technicians.

2. Primary and Secondary Flash Chips
The primary and secondary flash chips enhance the backplane memory.

3. Primary and Secondary Expander Chips
This primary and secondary expander chips
allow the backplane to support dual ports,
cascading, and failover.

4. Backplane Main Power Connectors
The 4-pin connectors, designated PWR0,
PWR1, PWR2, and PWR3, provide power tothe backplane. See the table on the right forpin definitions.

Backplane
Main Power
4-Pin Connector(PWR0, PWR1, PWR2,
and PWR3)
Pin#
1

+12V

2 and 3Ground4

5. EPP Ports
The EPP ports are used for manufacturer
diagnostic purposes only.

2-2

Definition+5VSafety Information and Technical Specifications
6. Fan Connectors
The 3-pin connectors, designated Fan1, Fan2,
Fan3, and Fan4, provide power to the system

Fan Connectors(Fan1, Fan2, Fan3,
and Fan4)
Pin#

Definitionfans. See the table on the right for pin defini-1

Groundtions.

2+12V

3

Tachometer7 - 12. SAS Ports
Note that the primary and secondary sets of
SAS ports are in different order. From right toleft the ports are Primary A3, A1, and A2 andSecondary B3, B1, and B2.

2-3

2-3

Front Jumper Locations and Pin Definitions

SAS933EL

WWN
B3

REV
EV 1.12
B1

WWN

B1

A2

B3

A2

PRI_BLINKSEC_J2B2SEC_J0

SEC_J1
SEC_BLINKPRI_J2

SEC_J0

SEC_J1

PRI_J2

PRI_J0

PRI_EXPPRI_BLINKSEC_BLINKPRI_EEPROM
PRI_EEPR

SEC_EEPROM
SEC_E

BUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

B1

B3

FANFAIL1

WWN

A2

A
R658
OVERHEATFAIL1

A1

C A

5V_LED
C A
R659
R1

SEC_J0

SEC_J1

SEC_BLINKPRI_J2

PRI_J1

PRI_J0

12V_LED
C A

A3

PRI_BLINKB2C

REMOTE_FAN_FAIL_SCOKET
PRI_IPMIPRI_I2CR2
FAN_ALERT_EN1

SEC_J2

SEC_I2C

SEC_IPMISEC_FLASHPRI_EXPPRI_MODE4BAR CODEPRI_EEPROM

SEC_EEPROM

1
1
PRI_MODE5

SEC_MODE4

SEC_FLASHPRI_FLASH

1

SEC_MODE5

FAN1
+5V

+12V

GND

GND

+5V

GND

GND

PWR3

+12V

+5V

GND

GND

PWR2

+12V

+5V

GND

GND

PWR1

+12V

FAN3

FAN2

PWR0

FAN4

Buzzer Enable
Remote_Fan_Fail_Socket

BUZZER_ENB1+

BUZZER1A1A
R658
OVERHEATFAIL1

12V_LEDC A

PRI_MODE4BUZZER1

SAS933EL

PRI_J1WWN

REV 1.12

REMOTE_FAN_FAIL_SCOKET
PRI_IPMIA3BUZZER_ENB1+

C

SEC_J2FANFAIL1

WWN

A2

A1

A
R658
OVERHEATFAIL1

C A

5V_LEDC A
R659
R1

12V_LED
C A

C

+12V
PRI_MODE4

PRI_
Mode5
1

1

PRI_SEP

SEC_MODE4

FAN2 PWR0

PRI_Mode4

1

C516

1

PRI_EXP

1

2

20

PRI_ICE

19

1

BAR CODE

C518

R578

1

FAN3

PRI_FLASH

PRI_MODE5SEC_UART

FAN2

1

SEC_SEP
SEC_MODE5Fan Alert Enable1

SEC_
Mode4

SEC_MODE4

SEC_FLASH

1

FAN1
+5V

BAR CODEPRI_EEPROM

1

PRI_UART

PRI_I2CR2

PRI_J1

PRI_J0

B2

SEC_EEPROM

GND

FAN_ALERT_EN1

GND

GND

GND

+12V

PWR3

+5V

GND

GND

+12V

+5V

GND

GND

PWR2

+12V

+5V

GND

PWR1

SEC_
Mode5

GND

PRI_FLASH+12V

SEC_MODE5

FAN3

FAN2

PWR0

FAN4

Figure 2-3: Front Jumpers

Socket Settings
SocketSocket Setting

REMOTE_FAN_FAIL_
SOCKET

Notes
Front panel fan fail indicator(Optional)

Connected

FAN1
+5V

GND

GND

+12V

PWR3

FAN3

+5V

GND

GND

2-4

+12V

PWR2

+5V

GND

GND

+12V

REV 1.12

REMOTE_FAN_FAIL_SOCKETPRI_IPMI

A3

PRI_BLINKPRI_J2

SEC_BLINK+5V

SAS933EL

PRI_I2CR2

FAN_ALERT_EN1

SEC_I2C

SEC_IPMIPRI_J0FANFAIL1
5V_LED
V_LED
C A
C A
R659
R1

PRI_EXPC520

WR1

SAS-933EL Backplane User's Guide

+5V

GND

GND

PWR1

+12V

PWR0

FAN4

A1

Safety Information and Technical Specifications

General Jumper Settings
JumperJumper Settings

Note

PRI_MODE4

1-2

Factory setting
Do not change

PRI_MODE5

2-3

Factory setting
Do not change

PRI_BLINK

Open

Factory setting
Do not change

SEC_MODE4

1-2

Factory setting
Do not change

SEC_MODE5

2-3

Factory setting
Do not change

SEC_BLINK

Open

Factory setting
Do not change

BUZZER_ENB

Open: Disable
Closed: Enable

Buzzer enable*

FAN_ALERT_ENI

Open: Disable
Closed: Enable

Fan alert enable

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 functionof the connector. Pin 1 is identified witha square solder pad on the printed circuitboard. Note: On two pin jumpers, "Closed"means the jumper is on and "Open" means
the jumper is off the pins.

3

2

1

3

2

1

Connector
Pins

JumperSetting*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
1. Hard drive failure
2. Fan failure
3. System temperature over 45º Celsius.

2-5

SAS-933EL Backplane User's Guide

Front LED Indicators
BUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

B2

B1

B3

FANFAIL1

WWN

A2

A
R658
OVERHEATFAIL1

A1

C A

5V_LED
C A
R659
R1

SEC_J1

PRI_J2

PRI_J1

PRI_J0

12V_LED
C A

A3

PRI_BLINKSEC_J0
SEC_BLINKCREMOTE_FAN_FAIL_SCOKET
PRI_IPMIPRI_I2CR2
FAN_ALERT_EN1

SEC_J2

SEC_I2C

SEC_IPMIPRI_EXPPRI_MODE4BAR CODEPRI_EEPROM

SEC_EEPROM

1
1
PRI_MODE5

SEC_MODE4

SEC_FLASHPRI_FLASH

1

SEC_MODE5

FAN1
+5V

+12V

GND

GND

+5V

GND

GND

+12V

PWR3

+5V

GND

GND

PWR2

+12V

+5V

GND

GND

PWR1

+12V

FAN3

FAN2

PWR0

Overheat/Fan Fail
FANFAIL1
AR658
OVERHEATFAIL1

A1

C A

Power Failure LEDs
5V_LEDC A
R659

12V_LEDC A

R1Fan Failure LED
SAS933EL

BUZZER1

A3

WWN

REV 1.12

WWN

A2

PRI_BLINKPRI_J2

SEC_BLINKPRI_UART

C516

PRI_EEPROM

1

1
1

1

PRI_SEP

C518

C520

R578

SEC_MODE4FANFAIL1

1
SEC_UART1
SEC_SEP
SEC_MODE5

Figure 2-4: Front LED Indicators
FAN1
+5V

GND

GND

+12V

+5V

GND

PWR3

GND

+12V

PWR2

+5V

GND

GND

+12V

PWR1

+5V

GND

GND

A
R658
OVERHEATFAIL1

A1

PRI_J1

PRI_J0

PRI_EXP

+12V

FAN3

FAN2

PWR0

C A

5V_LEDC A
R659
R1

12V_LEDC A

A3

PRI_I2CC

REMOTE_FAN_FAIL_SOCKETPRI_IPMIPRI_I2CR2
FAN_ALERT_EN1

PRI_MODE4PRI_J1REMOTE_FAN_FAIL_SCOKETREMOTE_FAN_FA
PRI_IPMIPR

FAN_ALERT_EN1
FAN_AL+CR2BUZZER_ENB1

PRI_J0

FAN4

2

20

PRI_ICE

19

1

BAR CODEPRI_FLASHBAR CODE
FAN4Backplane LEDs
LED

State

Specification

OVERHEATFAIL1

On

Overheat or drive failure

FANFAIL1

On

Failure in system fans

5V

Off

Backplane power failure. Light is on
during normal operation.

Off

Backplane power failure. Light is on
during normal operation.

PRI_FLASH

12V

2-6

Safety Information and Technical Specifications

2-4

Rear Connectors and LED Indicators
SAS #0#0

FAIL1

PRI_SRAM2

CA
C

ACT1

J1

CA
C ACT2#2

SAS #2

FAIL3
A
CA
C

ACT3

J3

#3

FAIL4

SAS #3

A
CA
C

ACT4

J4

#4

FAIL#4ACT#4SAS #1

A
J2

FAIL#3
ACT#3

PRI_SRAM1

#1

FAIL2

FAIL#2
ACT#2

J0

A

FAIL#1
ACT#1

FAIL5

SAS #4

A
CA
C

ACT5

SAS #6FAIL6SAS #5#6

J5#5

FAIL#5
ACT#5

A
CA
C

ACT6

FAIL#6
ACT#6

J6

FAIL7
A
CA
C

ACT7

FAIL#7
ACT#7

J7

#7

FAIL8

SAS #7

C75

A
CA
C

ACT8

FAIL#8
ACT#8

J8

#8

FAIL9

SAS #8C77A
CAC ACT9

FAIL#9
ACT#9

J9

#9

FAIL10SAS #9

A
CA
C

ACT10

FAIL#10
ACT#10J10#10FAIL11SAS #10ACAC ACT11

J11

SAS #11
SEC_SRAM1

A
CA
C

ACT12

J12

SAS #12#13

SAS #13#14

SAS #14A#12

FAIL13

FAIL#12
ACT#12

SEC_SRAM2

FAIL12#11

FAIL#11
ACT#11CAC ACT13

J13

FAIL14

FAIL#13
ACT#13

A
CA
C

ACT14

FAIL#14
ACT#14

J14

FAIL15
A
CA
C

ACT15

FAIL#15
ACT#15Figure 2-5: Rear Connectors and LEDs
Rear SAS Connectors
Connector

SAS Drive

Connector

SAS Drive

Connector

SAS Drive

SAS #0SAS HDD #0

SAS #5

SAS HDD #5

SAS #10

SAS HDD #10

SAS #1

SAS HDD #1

SAS #6

SAS HDD #6

SAS #11

SAS HDD #11

SAS #2

SAS HDD #2

SAS #7

SAS HDD #7

SAS #12

SAS HDD #12

SAS #3

SAS HDD #3

SAS #8SAS HDD #8

SAS #13

SAS HDD #13

SAS #4

SAS HDD #4

SAS #9SAS HDD #9

SAS #14

SAS HDD #14

2-7

SAS-933EL Backplane User's Guide

Rear LED Indicators
Rear LED

Hard Drive Activity

Failure LED

SAS #0

ACT #1

FAIL #1

SAS #1

ACT #2FAIL #2

SAS #2

ACT #3

FAIL #3

SAS #3

ACT #4

FAIL #4

SAS #4

ACT #5

FAIL #5

SAS #5

ACT #6

FAIL #6

SAS #6

ACT #7

FAIL #7

SAS #7

ACT #8FAIL #8

SAS #8

ACT #9FAIL #9SAS #9

ACT #10FAIL #10

SAS #10

ACT #11

FAIL #11

SAS #11

ACT #12FAIL #12

SAS #12

ACT #13

FAIL #13

SAS #13

ACT #14

FAIL #14

SAS #14

ACT #15

FAIL #15

2-8

Safety Information and Technical Specifications

Chapter 3
Dual Port and Cascading Configurations
3-1

Single and Dual Port Expanders
Single PortsBUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

B1

B3

FANFAIL1

WWN

A2

A
R658
OVERHEATFAIL1

A1

C A

5V_LEDC A
R659
R1

12V_LEDC A

A3C

SEC_J0

SEC_J1

SEC_BLINKPRI_J2

PRI_IPMIPRI_J1

PRI_J0REMOTE_FAN_FAIL_SCOKET
PRI_I2C

R2

PRI_BLINK

B2

FAN_ALERT_EN1

SEC_J2

SEC_I2C

SEC_IPMIPRI_EXPPRI_MODE4

PRI_MODE5BAR CODEPRI_EEPROM

SEC_EEPROM

1
1

SAS-933EL1 backplanes have a single port expander that access all fifteen drives

SEC_MODE4

SEC_FLASHPRI_FLASH

1

and supports cascading.

SEC_MODE5

Dual Ports

FAN1
+5V

+12V

GND

GND

+5V

GND

GND

PWR3

+12V

+5V

GND

GND

PWR2

+12V

+5V

GND

GND

PWR1

+12V

FAN3

FAN2

PWR0

FAN4

SAS-933EL2 backplanes have dual port expanders that access all fifteen drives.
These dual port expanders support cascading, failover, and recovery.
From HBA or
higher backplane

SAS-933EL1 Single PortBUZZER_ENB1+

SAS933EL

BUZZER1

WWN

REV 1.12

FANFAIL1

WWN

A2

A
R658
OVERHEATFAIL1

A1

C A

5V_LEDC A
R659
R1

12V_LEDC ACPRI_EXP

C516

1

1
1
PRI_SEP

C518

20
19

1

A3

BAR CODE

C520

R578

SEC_MODE42
PRI_ICEA1

PRI_EEPROM

A2

PRI_UART1

FAN_ALERT_EN1

PRI_MODE4

PRI_I2CR2

PRI_J1

PRI_J0REMOTE_FAN_FAIL_SOCKETPRI_IPMI

A3

PRI_BLINKPRI_J2

SEC_BLINKPRI_FLASH
1
SEC_UART1
SEC_SEP
SEC_MODE5

FAN1
+5V

GND

GND

+12V

+5V

GND

GND

PWR3

+12V

+5V

GND

GND

PWR2

+12V

+5V

GND

GND

+12V

PWR1

FAN3

FAN2

PWR0

FAN4

To Lower Backplane in Cascaded System

SAS-933EL2 Dual Port Backplane
From HBA or
Higher Backplane

From HBA or
Higher Backplane

A2

B3
BUZZER_ENB1+

SAS933EL

BUZZER1

PRI_MODE4

B2

SEC_MODE4SEC_J1FANFAIL1

WWN

A2

A
R658
OVERHEATFAIL1

A1

PRI_J2C A

5V_LED
C A
R659
R1

B1

12V_LEDC A

A3

PRI_J1

PRI_J0
PRI_EXPCREMOTE_FAN_FAIL_SCOKET
PRI_IPMIPRI_I2C

R2

A3

A1

PRI_EEPROM

PRI_MODE5

B3

PRI_BLINKSEC_J0
SEC_BLINKSEC_EEPROM

B2

1
1

B1

FAN_ALERT_EN1

SEC_J2

SEC_I2C

SEC_IPMIWWN

REV 1.12

BAR CODESEC_FLASHPRI_FLASH

1

SEC_MODE5

FAN1
+5V

GND

GND

+12V

+5V

PWR3

GND

GND

+12V

PWR2

+5V

GND

GND

+12V

PWR1

+5V

GND

GND

+12V

FAN3

FAN2

PWR0

FAN4

To Lower Backplane in cascaded system

Figure 3-1: Single and Dual Port Backplanes

3-1
BUZZER_ENB1+

BUZZER1

SAS933EL

WWN

REV 1.12

A2

FANFAIL1

WWN

A1

A
R658
OVERHEATFAIL1

PRI_J2

PRI_J0
PRI_EXPPRI_J1C A

5V_LEDC A
R659
R1

12V_LEDC A

A3C

REMOTE_FAN_FAIL_SOCKETPRI_IPMIR2
FAN_ALPRI_BLINKSEC_BLINK2

PRI_I2C

SAS-933EL Backplane User's Guide

3-2

FailoverThe SAS-933EL2 backplane has two expanders which allow effective failover andrecovery.

Single Host Bus Adapter
SAS HBAIn a single host bus configuration, thebackplane connects to one Host Bus
Adapter (HBA).
B1
SEC_J2B2SEC_J0B3
SEC_J1A2

PRI_J1

Port A
Expander 1

Port B
Expander 2Single Host Bus Adapter
Failover

A3

A1

PRI_J2

SAS HBA

If the expander or data path in PortA fails, the system will automaticallyswitch over to Port B.

B1
SEC_J2B2SEC_J0Port B
Expander 2Figure 3-2: Failover with a Single HBA

3-2

B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

Port A
Expander 1Safety Information and Technical Specifications

3-3

Failover with RAID Cards and Multiple HBAs

The SAS-933EL 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 accomplishedthrough 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 theload balancing and failover tasks.

Dual Host Bus Adapter

SAS HBAIn a dual host bus configuration, thebackplane connects to two Host Bus
Adapters.

SAS HBAB1
SEC_J2B2SEC_J0B3
SEC_J1A2

PRI_J1

Port B
Expander 2Dual Host Bus Adapter
Failover

A3

A1

PRI_J2

Port A
Expander 1

SAS HBA

If the expander or data path in Port A
fails, the system will automatically failover to Port B. This maintains a fullconnection to all drives.

SAS HBAB1
SEC_J2B2SEC_J0Port B
Expander 2

B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

Port A
Expander 1

Figure 3-3: Failover with Dual HBAs!

IMPORTANT: For RAID controllers, redundancy is achieved
through port failover. For multiple HBAs MPIO software isrequired to achieve failover protection.

3-3

SAS-933EL Backplane User's Guide

3-4

Cables and Chassis Power Card
Chassis Power Card

In a cascaded configuration, the first chassis includes a motherboard and, at least
one, HBA. Other servers in this enclosed system, include a power card. This section
describes the supported power card for the SAS-933 backlplane system.

A
A

A

JBPWR2 REV 1.00

Figure 3-4: Power Card

Power Card
Part Number

Part Type

Where Used

CSE-PTJBOD-CB1

Power Card

Allows the chassis to be in a
JBOD (Just a Bunch of Drives)
system.

3-4

Safety Information and Technical Specifications

Connecting an Internal Host Bus Adapter to the
Backplane
The following section lists the most common cables used to connect the HBA to
the backplane.

B1
SEC_J2

B2

B3

SEC_J0A3

A1A2

SEC_J1

PRI_J1

PRI_J2

HBA

Single Internal Host Bus Adapter

B1
SEC_J2B2SEC_J0B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

HBA
HBA
Dual Internal Host Bus Adapter

Figure 3-5: Single and Dual HBAs

IMPORTANT: See Section 3-3 of this manual, Failover with RAID Cards and Multiple
HBAs for important information on supported configurations.

3-5

SAS-933EL Backplane User's Guide

Supported Internal HBA to Backplane Cables
Use the following listed cables to create connections between the internal HBA andbackplane. The cables required depend on the HBA connector.

Figure 3-6: iPass to 4-lane Cable (CBL-0117)

Cable Name: iPass to 4-Lane
Part #: CBL-0117

Length: 46 cm (18 inches)

Description: This cable has one SFF-8484 (32-pin) connector on one end and iPass(SFF-8087/Mini-SAS) connector (36-pin) at the other. This cable connects from the
HBA to the SAS-933EL backplane.

3-6

Safety Information and Technical Specifications

Figure 3-7: iPass (Mini-SAS) to iPass (Mini-SAS) (CBL-0110L-2)
Cable Name: iPass (Mini-SAS) to iPass (Mini-SAS)Part #: CBL-0108L-02

Length: 39 cm (15 inches)Part #: CBL-0109L-02

Length: 22 cm (9 inches)Part #: CBL-0110L-02

Length: 18 cm (7 inches)

Description: This cable has an iPass (SFF-8087/Mini-SAS) connector (36-pin) at
each end. It connects from the HBA to the 933 EL backplane.

3-7

SAS-933EL Backplane User's Guide

Connecting an External Host Bus Adapter to the
Backplane
This backplane supports external Host Bus Adapters. In this configuration, the HBA
and the backplane are in different physical chassis. This allows a JBOD (Just a
Bunch Of Drives) configuration from an existing system.

B1
SEC_J2

HBA

B2

B3

SEC_J0A3

A1A2

SEC_J1

PRI_J1

PRI_J2

Power Card

Single External Host Bus Adapter
CBL-0200L
External HBA Cable

B1
SEC_J2B2SEC_J0B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1HBA
HBA

Power Card

Dual External Host Bus Adapter
CBL-0200L
External HBA Cables

Figure 3-8: Connecting an External HBA
IMPORTANT: See Section 3-3 of this manual, Failover with RAID Cards and Multiple
HBAs for important information on supported configurations.

3-8

Safety Information and Technical Specifications

Supported External HBA to Backplane Cable
Use the following cable if your external HBA has an InfiniBand connector.

Figure 3-9: SAS InfiniBand to Mini-SAS (CBL-0200L)

Cable Name: SAS InfiniBand to Mini-SAS X4 1M cable, PBF
Part #: CBL-0200L

Length: 1 meter

Description: This cable has an InfiniBand connector (SFF-8470) on one end andan SFF-8088-1X (26-pins) at the other end.

3-9

SAS-933EL Backplane User's Guide

Connecting Multiple Backplanes in a Single Channel
Environment
This section describes the cables used when cascading from a single HBA. These
connections use CBL-0167L internal cables and CBL-0166L external cables.

Single HBA Conguration

B1
SEC_J2B2SEC_J0B3
SEC_J1

A2

A3

A1
PRI_J1

PRI_J2

Port A Expander 1

Port B Expander 2

CBL-0167L
with Single Port Assembly(Internal cable)

HBA

B1
SEC_J2B2SEC_J0Port B Expander 2

B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

Port A Expander 1

CBL-0166L(External cable)

Power Card

Figure 3-10: Multiple Backplanes in a Single Channel Environment

3-10

Safety Information and Technical Specifications

Single HBA Configuration Cables
Single Port Cable Assembly

Figure 3-11: SAS Internal Backplane Cable (CBL-0167L)
Cable Name: SAS EL2/EL1 Backplane Cable (Internal) w/ 2-port Cascading Cable,
68 cm
Part #: CBL-0167L (SFF-8087 to SFF-8088 x1)
Ports: Single
Placement: Internal cable
Description: Internal cable. Connects the backplane to the Host Bus Adapter (HBA)or external port. Used in single port environments.

Figure 3-12: SAS Cascading Cable External (CBL-0166L)
Cable Name: SAS EL2/EL1 Cascading Cable (External), 68 cm
Part #: CBL-0166L (SFF-8088 1x to SFF-8088 x1)
Ports: Single or Dual
Placement: External cable
Description: External cascading cable. Connects ports between servers. With mostconnectors, use one cable for single port connections and two cables for dual port
connections.

3-11

SAS-933EL Backplane User's Guide

Connecting Multiple Backplanes in a Dual Channel
Environment
This section describes the cables used when cascading from a single HBA. These
connections use CBL-0168L internal cables and CBL-0166L external cables.

B1
SEC_J2B2SEC_J0B3
SEC_J1

Port B Expander 2

A3

A1

A2

PRI_J1

PRI_J2

Port A Expander 1

Cable 0168L
with Single Port Assembly(Internal cable)

HBA
HBA

B1
SEC_J2B2SEC_J0Port B Expander 2

B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

Port A Expander 1
Cable 0166L(External cable)

Power Card

Figure 3-13: Multiple Backplanes in a Dual Channel Environment

IMPORTANT: See Section 3-3 of this manual, Failover with RAID Cards and Multiple
HBAs for important information on supported configurations.

3-12

Safety Information and Technical Specifications

Dual HBA Conguration Cables
Dual Port Cable
Assembly

Figure 3-14: SAS Cascading Cable Internal (CBL-0168L)
Cable Name: SAS Dual Port Cable Assembly, 68/76 cm
Part #: CBL-0168L
Ports: Dual

Placement: Internal cable

Description: Internal cascading cable. Connects the backplane to the HBA or external port. Used in dual port environments.

Figure 3-15: SAS Cascading Cable External (CBL-0166L)
Cable Name: SAS EL2/EL1 Cascading Cable (External), 68 cm
Part #: CBL-0166L
Placement: External cable
Ports: Single or Dual
Description: External cascading cable. Connects ports between servers. Use one
cable for single port connections and two cables for dual port connections.

3-13

SAS-933EL Backplane User's Guide

3-5

Supported Cascading Configurations

Cascading allows the system to access data at a faster rate by allowing several
backplanes to share resources to reduce latency time.
The first backplane in a cascaded system requires a motherboard and HBA. Other
servers require a power control card, but not a motherboard and HBA together.
B1
SEC_J2

B2

B3

SEC_J0A3

A1A2

SEC_J1

PRI_J1

PRI_J2

Port B Expander 2Port A Expander 1

Single Port Cable
Assembly

HBA

Cable 0167L(Internal cable)

B1
SEC_J2

B2

B3

SEC_J0A3

A1A2

SEC_J1

PRI_J1

PRI_J2

Port B Expander 2Port A Expander 1

Cable 0166L(External cable)

Power Card

B1
SEC_J2B2SEC_J0B3
SEC_J1A2
PRI_J2

Port B Expander 2

A3

A1
PRI_J1

Port A Expander 1Power Card

Figure 3-16: Supported Cascading Configurations
Other Considerations:• Cascading supports up to one hundred twenty-two hard drives• Use the same cables for all single port configurations
3-14

Safety Information and Technical Specifications

Server System with Single SAS HBA
The exanders allow horizontal branching. This configuration also applies to dual
ports.

B1

B3

B1

A3

A1

A2

SEC_J2
SEC_J2B2SEC_J0

SEC_J1

B2

PRI_J1

PRI_J2B3

SEC_J0

PRI_J1

PRI_J2

Port A Expander 1

Port A Expander 1Power Card

HBA
Cable 0167L(Internal cable)

Single Port Cable
Assembly

B1
SEC_J2

B1
SEC_J2A3

A1A2

SEC_J1B2

SEC_J0B3
SEC_J1

A2

B2

B3

SEC_J0A3

A1A2

SEC_J1

PRI_J1

PRI_J2

A3

A1
PRI_J1

PRI_J2

Port A Expander 1

Port A Expander 1Power Card

Power Card

Cable 0166L(External cable)

B1
SEC_J2

B1
SEC_J2B2SEC_J0B3
SEC_J1A2
PRI_J2B2SEC_J0B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

A3

A1
PRI_J1

Port A Expander 1

Port A Expander 1Power Card

Power Card

Figure 3-17: Server System with Single SAS HBA

3-15

SAS-933EL Backplane User's Guide

Server System with Dual SAS HBA and Cascading
Configuration
B1
SEC_J2

B2

B3

SEC_J0

SEC_J1

A3

A1

A2

PRI_J1

PRI_J2

Port A Expander 1

Port B Expander 2

HBA
Dual Port Cable
Assembly

HBA

Cable 0168L(internal cable)

B1
SEC_J2

B2

B3

SEC_J0A3

A1A2

SEC_J1

PRI_J1

PRI_J2

Port B Expander 2Port A Expander 1

Cable 0166L(External cables)

Power Card

B1
SEC_J2B2SEC_J0Port B Expander 2

B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

Port A Expander 1Power Card

Figure 3-18: Server System with Dual SAS HBA and Cascading Configuration
IMPORTANT: See Section 3-3 of this manual, Failover with RAID Cards and Multiple
HBAs for important information on supported configurations.

3-16

Safety Information and Technical Specifications

Server System with Dual SAS HBA
B1
SEC_J2B2SEC_J0B3
SEC_J1

A3

A1

A2

PRI_J1

PRI_J2

Port B Ex. 2

Port A Ex. 1
B1
SEC_J2

B2

B3

SEC_J0

PRI_J1

PRI_J2

Port A Ex. 1

Port B Ex. 2

HBA

A3

A1

A2

SEC_J1

Power
Card

HBA

B1
SEC_J2B2SEC_J0B3
SEC_J1

A2

A3

A1
PRI_J1

PRI_J2

Port B Ex. 2

Port A Ex. 1
B1
SEC_J2B2SEC_J0B3
SEC_J1

A2

A3

A1
PRI_J1

PRI_J2

Port A Ex. 1

Port B Ex. 2

Power
Card

Power
Card

Cable 0166L(external cable)
B1
SEC_J2B2SEC_J0Port B Ex. 2

B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

Port A Ex. 1
B1
SEC_J2B2SEC_J0Port B Ex. 2

B3
SEC_J1A2
PRI_J2

A3

A1
PRI_J1

Port A Ex. 1

Power
Card

Power
Card

Figure 3-19: Server System with Dual SAS HBA
IMPORTANT: See Section 3-3 of this manual, Failover with RAID Cards and Multiple
HBAs for important information on supported configurations.

3-17

SAS-933EL Backplane User's Guide

Dual Cable Routing

External Cables
In the previous diagrams externalcables are represented with two different line patterns. These cables are both
CBL-0166L external cables. Different
lines help the user determine cablerouting.

3-18

CBL-0166L(external cable)Safety Information and Technical Specifications

Notes

3-19

SAS-933EL Backplane User's Guide

Disclaimer (cont.)
The products sold by Supermicro are not intended for and will not be used in life support systems, medical equipment, nuclear facilities or systems, aircraft, aircraft devices,
aircraft/emergency communication devices or other critical systems whose failure to perform be reasonably expected to result in significant injury or loss of life or catastrophic
property damage. Accordingly, Supermicro disclaims any and all liability, and shouldbuyer use or sell such products for use in such ultra-hazardous applications, it does soentirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend and holdSupermicro harmless for and against any and all claims, demands, actions, litigation,and proceedings of any kind arising out of or related to such ultra-hazardous use orsale.

3-20