SUPERA18

JSM2A14434

UPGRADE #2

UPGRADE #151B18JP61

3SAS IN #4-#7B112A18JSM1A1MH23323122232656JP47

2JP46

1MH1JP61
1-2 WITH FAN
2-3 NO FAN®

Y1Y234U40

44B18

RP14SAS IN #0-#3B11+12V

JP1TP4 TP3JP54

ACT LED TEST

1 FAN

JP62
1-2 WITH FAN
2-3 NO FANBAR CODE

4R69

DESIGNED IN USA

1+3 JP62++JP3

1

JP25: OH TEMPOPEN 45 C
1-2 50 C
2-3 55 C

3C84 JP25

19071 RSTC78

BPN-SASI28A

C77SAS-I28A Backplane
USER'S GUIDE
Rev. 1.0

REV 1.00

4+5V

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 bythe 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 allclaims 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 1.0							Release Date: April 6, 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 America

Safety Information and Technical Specifications

Table of Contents
Contacting Supermicro..............................................................................................iv
Returning Merchandise for Service............................................................................v

Chapter 1 Safety Guidelines
1-1ESD 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-I28A Backplane.......................................................... 1-2

Chapter 2 Connectors, Jumpers and LEDs
2-1

Front Connectors and Components................................................................. 2-1

2-2

Front Components, Connectors and Pin Definitions....................................... 2-2

2-3

Front Jumper Locations and Pin Definitions.................................................... 2-3
Explanation of Jumpers................................................................................... 2-3

2-4

Rear Connectors and LED Indicators.............................................................. 2-4iii

SAS-I28A Backplane User's Guide

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:886-2-8226-1900

iv

Safety Information and Technical Specifications

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.

vSAS-I28A Backplane User's GuideNotesvi

Safety Information and Technical Specifications

Chapter 1Safety 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 this backplane.

• Disconnect the power cable before installing or removing any cables from thisbackplane.

• Make sure that the this backplane is securely and properly installed on themotherboard to prevent damage to the system due to power shortage.

1-1

SAS-I28A 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 revision
available at the time of publishing. The card you have received may or may not lookexactly the same as the graphics shown in this manual.

1-4Introduction to the SAS-I28A Backplane

The SAS-I28A 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-I28A Revision 1.00, 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 2Connectors, Jumpers and LEDs

2-1

Front Connectors and Components

17A18

JSM2A13444

UPGRADE #2

MH1JP61
1-2 WITH FAN
2-3 NO FAN
231B18JP61

3SAS IN #4-#7JP54
1 FAN

B1Y22652212A18

JSM11MH23318Y134U4044B18

RP14SAS IN #0-#3

ACT LED TEST115

BAR CODE

3++1+3 JP62
4R69DESIGNED IN USA

B1

TP4 TP314
JP31A123JP62
1-2 WITH FAN
2-3 NO FAN19UPGRADE #12656JP47

2JP46

1JP25: OH TEMPOPEN 45 C
1-2 50 C
2-3 55 C

3C84 JP25

19071 RSTC78

BPN-SASI28A

C77

1+12V

JP14+5V

REV 1.00

Figure 2-1: Front Connectors and Components
Front Connectors and Components
1. SAS IN #0 - #3: JSM1

6. MG9071 chip

2. SAS IN #4 - #7: JSM2

7. Upgrade connector #1: JP46

3. Power connector: JP1

8. Upgrade connector #2: JP47

4. Power connector: JP3

9. Fan connector: JP54

5. MG9071 chip

2-1

SAS-I28A Backplane User's Guide

2-2

Front Components, Connectors and Pin Definitions#1 - #2 SAS Ports
The SAS ports are used to connect the MiniSAS cables. The ports are designated SAS IN#0 - #3, and SAS IN #4 - #7. Each port is also
compatible with SATA drives.

#3 - #4 Backplane Main Power Connectors
The 4-pin connectors, designated JP1 andJP3, provide power to the backplane. See thetable on the right for pin definitions. Both ofthese connectors must be used at the sametime.

#5. - #6. MG9071 Chip
The MG9071 chip is an enclosure management controller chip.

#7 - #8 Upgrade Connector
The upgrade connectors are designated JP46
and JP47. The upgrade connector is for manufacturing use only.

#9 Fan Connectors
The fan connector is designated JP54.

2-2Backplane
Main Power4-Pin Connectors
Pin#Definition

1+12V

2 and 3Ground

4+5VSafety Information and Technical Specifications

2-3Front Jumper Locations and Pin Definitions
A18JSM2A13444

UPGRADE #22JP61

UPGRADE #151B18JP61

3SAS IN #4-#7

B112

JSM1A18A1MH23323

12223

2656JP47

JP61
1-2 WITH FAN
2-3 NO FAN

JP46

1
MH1

Y1

Y234U40

44

B18

RP14SAS IN #0-#3B1

1+12V

JP1

TP4 TP3JP54

ACT LED TEST

1 FAN

JP62
1-2 WITH FAN
2-3 NO FANBAR CODE

R69DESIGNED IN USA

JP25: OH TEMPOPEN 45 C
1-2 50 C
2-3 55 C

3C84 JP25

1JP25

19071 RST+3 JP62
41++JP62

JP3C78

BPN-SASI28A

C774+5V

REV 1.00

Figure 2-2: Front Jumper

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 ofthe 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 theConnectorPins

321321Jumper

Setting

jumper is off the pins.
General Jumper Settings
JumperJumper Settings

NoteJP61

1-2: Fan enabled
2-3: Fan disabled

Enables or disables the fan power.

JP62

1-2: Fan enabled
2-3: Fan disabled

Enclosure monitor enable/disable.

JP25

Open: 45o C
1-2: 50o C
2-3: 55oC

Allows the overheat temperature to beadjusted.

2-3

SAS-I28A Backplane User's Guide

2-4

Rear Connectors and LED Indicators

SAS #0 SAS #1 SAS #2
J1J2J3#0#1J2J1J3SAS #3 SAS #4 SAS #5 SAS #6 SAS #7J4J5J6J7J8#3#2#4J6J5#5#6J7#7J8J41277272772777882777883393393397883392778339833942733933
9OH/DRIVE FAIL

27CD30
D31

D32AFAIL1C A D33

ACT1

D32
D33CA D34

CFAIL2

A D35

A D36

ACT2

CFAIL3

D34
D35

A D38

A D37
CCACT3D36
D37

C A D39

FAIL4CACT4

D38
D3922CD47

D31

ACT022

A AC A

2121212222CFAN FAIL22D9A D30

FAIL02121212221212222

D40

D41C A

FAIL5ACT5AC

D40
D41

A D42CFAIL6

A D43

A D44CACT6FAIL7

D42
D43

D45CC

ACT7

D44
D45

Figure 2-3: Rear Connectors and LED Indicators

Rear LEDs
LEDDescription

D9OH/DRIVE FAIL

D47

FAN FAIL

Rear SAS/SATA Connectors and LED Indicators
Rear Connector

Hard Drive Activity

Failure LED

SAS #0

D31

D30SAS/SATA HDD #0

SAS #1

D33

D32SAS/SATA HDD #1

SAS #2

D35

D34SAS/SATA HDD #2

SAS #3

D37

D36SAS/SATA HDD #3

SAS #4

D39

D38

SAS/SATA HDD #4SAS #5

D41

D40SAS/SATA HDD #5SAS #6

D43

D42SAS/SATA HDD #6SAS #7

D45

D44SAS/SATA HDD #72-4

SAS Drive

D9D47

Safety Information and Technical Specifications

Notes

2-5

SAS-I28A Backplane User's GuideDisclaimer (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.

2-6