BPN-SAS3-747TQ-N4 Backplane
USER'S GUIDE
Rev. 1.0

BPN-SAS3-747TQ-N4 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, if any,
and documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or
reduced to any medium or machine without prior written consent.
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 1.0							Release Date: November 27, 2017
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 © 2017 by Super Micro Computer, Inc.
All rights reserved.

Printed in the United States of AmericaiiPreface

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

Chapter 1 Safety Guidelines.....................................................................1-1
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 BPN-SAS3-747TQ-N4 Backplane..................................... 1-2

Chapter 2 Connectors and Pin Definitions.............................................. 2-1
2-1

Front Connectors............................................................................................. 2-1

2-2

Front Connector Pin Definitions....................................................................... 2-2

2-3

Front Jumper Locations and Pin Definitions.................................................... 2-4

2-4

Rear Connectors and LED Indicators.............................................................. 2-5

iii

BPN-SAS3-747TQ-N4 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

Preface

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Chapter 1: Safety Guidelines

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

BPN-SAS3-747TQ-N4 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 BPN-SAS3-747TQ-N4 Backplane

The BPN-SAS3-747TQ-N4 backplane has been designed to utilize the most
up-to-date technology available, providing your system with reliable, high-quality
performance.
Always refer to the Supermicro Web site at www.supermicro.com for the latest
updates, compatible parts, and supported configurations.

1-2

Chapter 2: Connectors and Pin Definitions

Chapter 2
Connectors and Pin Definitions

2-1

Front Connectors

1

12

12
14

13
17

18

19

1
10

1
15

1
11

6

5

1
12

1
13
1
15

15

Figure 2-1. Front Connectors
1. JTAG Connector (7-pin): J16,CPLD Upgrade Port

8. SAS Port #6: JS6
9. SAS Port #5: JS5

2. Sideband Connectors: J28 and
J29

10. SAS Port #4: JS4

3. NVMe Connector #3: CN3

11. SAS Port #3: JS3

4. NVMe Connector #2: CN2

12. SAS Port #2: JS2

5. NVMe Connector #1: CN1

13. SAS Port #1: JS1

6. NVMe Connector #0: CN0

14. SAS Port #0: JS0

7. SAS Port #7: JS7

15. Power Connectors: (4-pin):
JPW1, JPW2, and JPW3

2-1

1
14

BPN-SAS3-747TQ-N4 Backplane User's Guide

2-2

Front Connector Pin Definitions#1. CPLD Upgrade Port
The JTAG connector, designated J16, isused only by the manufacturer to upgrade
the CPLD.
#2. Sideband Headers

Sideband Headers

The sideband headers are designated J28,
for SAS #0-#3, and J29, for SAS #4-#7. For
SAS or SATA to work properly, you must
connect an 8-pin sideband cable. See thetable to the right for pin definitions.
NOTE: SGPIO is the default setting for thisbackplane.

#3. - 6. NVMe Connectors
The NVMe ports are used to connect
the NVMe drive cables. OCuLink cables
CBL-SAST-0819 should be used to connect these ports to a quad port NVMe
add-on card in PCIe slot 9 of motherboard
X11DPG-QT.
#7. - 14. SAS Connectors
The SAS ports are used to connect the
SAS or SATA drive cables. The 8 ports aredesignated #0 - #7. Each port is also compatible with SATA drives. However, mixing
SAS and SATA drives in the same enclosure
is not recommended. Cables CBL-0188L-02
can be used to connect SATA drives #0#3 to port I-SATA0-3 and SATA drives#4-#7 to port I-SATA4-7 on motherboard
X11DPG-QT. Cables CBL-SAST-0699 canbe used to connect SAS drives #0-#3 and#4-#7 to a dual port HBA or RAID controller
plugged into any PCIe slot on motherboard
X11DPG-QT.

2-2

Pin #   Definition

Pin #   Definition

2

SDIN

1

Controller ID
(SB6)

4

SDOUT

3

GND (SB2)

6

GND (SB3)

5

SLOAD

8

Backplane
ID (SB7)7SCLOCK

Chapter 2: Connectors and Pin Definitions#15. Backplane Main Power Connectors
The 4-pin connectors, designated JPW1,
JPW2, and JPW3, provide power to the
backplane. See the tables on the right forpin definitions.

Backplane
Main Power
4-Pin Connector
Pin#                Definition
1+12V

2 and 3Ground

4

2-3

+5V

BPN-SAS3-747TQ-N4 Backplane User's Guide

2-3

Front Jumper Locations and Pin Definitions

JP8
JP9

ACTLED
Figure 2-2. Front Jumpers

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.

Connector
Pins

3

2

1

3

2

1

JumperSetting

Note: On two pin jumpers, "Closed" means
the jumper is on and "Open" means thejumper is off the pins.
Jumper Settings
JP8

JP9

Description

2-3

2-3

4 drives (NVMe #0, 1, 2, and 3) connected to CPU1.
(default)

1-2

2-3

3 drives connected to CPU1, 1 drive connected to CPU2.

2-3

1-2

2 drives connected to CPU1, 2 drives connected to CPU2.

1-2

1-2

1 drive connected to CPU1, 3 drives connected to CPU2.
LED Test

ACTLED

Description

Open

For internal use only. (default)

2-4Chapter 2: Connectors and Pin Definitions

2-4

Rear Connectors and LED Indicators

#0
J0

#1
J1

#2
J2

#3
J3

#4
J4

#5
J5

#6
J6

#7
J7

LED00
LED0

LED01
LED1

LED02
LED2

LED03
LED3

LED04
LED4

LED05
LED5

LED06
LED6

LED07
LED7

Figure 2-3. Rear SAS/SATA Connectors and LED Indicators

SAS/SATA/NVMe Connectors and LED Indicators
Rear
Connector

SAS Drive
NumberFailureLED

Activity
LED#0

SAS/SATA/NVMe HDD #0

LED00

LED0

#1

SAS/SATA/NVMe HDD #1

LED01

LED1

#2

SAS/SATA/NVMe HDD #2

LED02

LED2

#3

SAS/SATA/NVMe HDD #3

LED03

LED3

#4

SAS/SATA HDD #4

LED04

LED4

#5

SAS/SATA HDD #5

LED05

LED5

#6

SAS/SATA HDD #6

LED06

LED6

#7

SAS/SATA HDD #7

LED07

LED7

2-5

BPN-SAS3-747TQ-N4 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 would be reasonably expected to result in significant injury or loss of life orcatastrophic property damage. Accordingly, Supermicro disclaims any and all liability,
and should buyer use or sell such products for use in such ultra-hazardous applications,
it does so entirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend,
and hold Supermicro 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 or sale.

2-6