Chenbro SR301 Plus series User manual

SR30169 Plus Server Chassis
4-port 12Gb/s mini-SAS HD Backplane - 380-30110-2002A1
User Manual
Revision 1.0
January, 2018

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Revision History
Date
Revision
Changes
January, 2018
1.0
Initial Version

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Copyright and Trademarks
Copyright © 2017 Chenbro Micom Co., Ltd. or its subsidiaries. All rights are reserved.
Chenbro, and (Chenbro logo) are registered trademarks of Chenbro Micom Co., Ltd in
the worldwide. Other company’s product names or trademarks are used herein for identification
purpose only and belong to their respective companies.
Disclaimers and Limitation of Liability
Chenbro and its subsidiaries make no representations or warranties, either expressed or implied,
including without limitation, with respect to the contents hereof and specifically disclaims the
implied warranties of merchantability or fitness for a particular purpose. Chenbro and its
subsidiaries assume no responsibility for any damage or loss resulting from the use of this
manual.
This document contains information on products, services and/or processed in development. All
information provided here is subject to change without notice. Please contact your Chenbro
representative or agent to obtain the latest information if necessary.
No license (express or implied, by estoppel or otherwise) to any intellectual property right is
granted by this document.

Table of Contents
Revision History ................................................................................................... II
Copyright and Trademarks .................................................................................. III
Disclaimers and Limitation of Liability................................................................. III
Chapter 1.Overview ............................................................................................. 1
1.1 Introduction............................................................................................. 1
1.2 SR301 Chassis Revision............................................................................. 1
1.3 Hardware Specification and Feature ........................................................ 2
Chapter 2. Backplane Layout................................................................................ 4
2.1 Backplane Dimension............................................................................... 4
2.2 Connectors on component side ................................................................ 4
2.3 Connectors on solder side ..................................... 錯誤 ! 尚未定義書籤。
Chapter 3.Function of Interface............................................................................ 6
3.1 SAS Connectors (CH012 / CH022 / CH032 / CH042)................................... 6
3.2 mini-SAS HDD Connector, CB1 .................................................................. 7
3.3 4-pin Fan Header (JF1) ............................................................................. 8
3.4 HDD Access Mode Jumper (CN02) ............................................................ 9
3.5 4-pin peripheral power connector (CN1and CN2) ................................... 10
3.6 I2C Connector (JC1), IPMI Compliant ...................................................... 10
3.7 Hardware Monitor Display Pin Header (CN01) ....................................... 11
3.8 Hardware Monitor DIP Switch (SW1) ..................................................... 11
Chapter 4.Technical Support............................................................................... 12
4.1 How to contact us? ................................................................................ 12

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual

List of Figures
Figure 1. Front Side of Backplane..................................................................................5
Figure 2. Front Side of Backplane..................................................................................5

List of Tables
Table 1. List of Backplane Specification........................................................................3
Table 2. Backplane Connector & Component Layout...................................................4

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Chapter 1.Overview
1.1 Introduction
This document provides backplane specific information including the features, jumper settings,
and pin definitions of 12Gb/s 4-port mini-SAS HD backplane, which is not compatible with the
previous version of SR301 chassis with screw-installed 3.5” HDD trays.
Moreover, it also lists down Chenbro worldwide technical contacts, so the user can contact our
experienced field application engineers via either a phone call or email.
1.2 Chassis Revision
The SR301 chassis has been modified to support both tool-less 3.5” HDD tray and PCI-e 3.0 slot,
and this feature-advanced chassis is named as SR301 Plus (SR301+). There is a sticker on
chassis bottom with the information of chassis revision and manufacturing code, which are must
for technical support.
Model Name
SR301xx Plus
SR301xx
HDD Carrier
Tool-less Installation
Screw Installation
12Gb/s Backplane
1 x mini-SAS HD Host Connector
4 x 7-pin SATA Host Connector

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Table 1.SR301 PLUS
1.3 Hardware Specification and Feature
▪Supports 6Gb/s and 12Gb/s SAS/SATA 3.5” hard disks
▪Supports HDD hot-swap when system is running
▪Supports temperature monitoring on the HDD side
▪Supports one PWM fan connector for system fan control
▪Supports In-band SGPIO control
▪Less-screw mounting design for easy backplane maintenance
Expansion Slot
PCI-e 3.0
PCI-e 2.0
Specification
Host Interface
1 x mini-SAS HD(SFF-8643), Right Angle
HDD Interface
4 x SATA / SAS(SFF-8680)
Hot-Swap
Supported, Remove/Insert the hard drive without turning off system power
Hardware
Monitoring
1 x TMP75 Temperature sensor
Indicator
Two LEDs indicate the different statuses of Hard Disk Drive
Power LED: Solid Blue ( When HDD is present )
Status LED:
▪Green ( When HDD is busy)
▪Solid Red ( When HDD fails)
Connector and
Header
1 x mini-SAS HD connector
4 x 29-pin SAS connector(SFF-8482)
2 x 4-pin peripheral power connector
1 x SGPIO jumper
1 x 4-pin PWM fan header
1 x hardware monitor display header
1 x hardware monitor DIP switch
1 x I2C connector

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Table 2. Backplane Specification
1.4 Compatible Chassis
SR30169 Plus
Dimension
130.1 ( L ) x 104.5 ( W ) x 2.4 ( H ) mm

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Chapter 2. Backplane Physical Layout
2.1 Backplane Dimension
2.2 Connector Layout
The following table is a list of all connectors, headers and jumpers applied to this backplane. With
layout diagrams, user can find where they are on both component and solder sides.
Table 3.Backplane Connector & Component Layout
Backplane Connector & Component Layout
CH011 / CH021 / CH031 / CH041
Connect to 29-pin SAS or 22-pin SATA HDD
LD011 / LD021 / LD031 / LD041
Blue LED, indicates HDD is present and powered
LD012 / LD022 / LD032 / LD042
Blinking Green LED indicates HDD activity
Solid Red LED stands for HDD failure.
CB1
Mini-SAS HD, Right Angle
JF01
4-pin Fan connector
JP01
Jumper for HDD Access/SGPIO modes
CN01/CN02
4-pin peripheral power connector
JC01
I2C connector, IPMI compliant
JP02
Pin header, Fail LED& Mute settings
SW1
DIP switch for hardware monitoring
JA1
Reserved

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Figure 1. Component Side of Backplane
Figure 2. Solder Side of Backplane
SW1, DIP Switch
CN02, Power Connector
CN01, Power Connector
JC01, I2C Connector
JF01, 4-pin Fan Header
JA01, Reserved
JP01, SGPIO mode Jumper
CB1, mini-SAS HDD Connector
JP02, Fail LED Header
JM1
JP1
B1, Buzzer (Reserved)
CH041
CH031
CH021
CH011
SAS/SATA HDD Connector

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Chapter 3.Function of Interface
There are various interfaces on this backplane used for connecting to mainboard and getting
system operated. Also, there are some interfaces available for system debug and configuration
purposes. All the features and signal characteristics on the interfaces will be described below.
Caution should be paid carefully to make sure the electronical characteristic is appropriate
between two ends of cables when connecting to mainboard.
3.1 SAS Connectors (CH011 / CH021 / CH031 / CH041)
There are four SFF-8482 connectors on this backplane to allow four SATA or SAS drives be
manipulated by hot-swap without powering off the server system in advance.
HDD IN Connector (CH012, CH022, CH032, CH042)
PIN-Number
PIN-Define
Input/output
Description
S1
GND
GND
GND
S2
TP
Input
Transmitter data (+)
S3
TN
Input
Transmitter data (-)
S4
GND
GND
GND
S5
RN
Output
Receiver data (-)
S6
RP
Output
Receiver data (+)
S7
GND
GND
GND
S8
NC
NC
NC
S9
NC
NC
NC
S10
NC
NC
NC
S11
NC
NC
NC
S12
NC
NC
NC
S13
NC
NC
NC
S14
NC
NC
NC
P1
NC
NC
NC
P2
NC
NC
NC
P3
NC
NC
NC
P4
GND
GND
GND

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
P5
Plug-in detection
Input
HDD Plug-in detection
P6
GND
GND
GND
P7
5V Pre-charge
Input
Pre-charge +5V
P8
5V
Power
Power +5V
P9
5V
Power
Power +5V
P10
GND
GND
GND
P11
NC
NC
NC
P12
GND
GND
GND
P13
12V Pre-charge
Input
Pre-charge +12V
P14
12V
Power
Power +12V
P15
12V
Power
Power +12V
Table 4.HDD IN Connector
3.2 mini-SAS HDD Connector, CB1
For connecting to a mainboard or a HBA, this mini-SAS HD connector is applied. A proper cable
selection is essential as well to make sure good signal integrity can be maintained for the whole
connection path from mainboard or HBA/RAID card to the HDD devices.
Pin No.
Signal Name
Input/output
Description
A1
SGPIO SCKA
Input
SPGIO Clock
A2
GND
GND
GND
A3
GND
GND
GND
A4
RP1
Input
Receiver data 1 (+)
A5
RN1
Input
Receiver data 1 (-)
A6
GND
GND
GND
A7
RP3
Input
Receiver data 3 (+)
A8
RN3
Input
Receiver data 3 (-)
A9
GND
GND
GND
B1
SGPIO SLDA
Output
SPGIO SLoad
B2
GND
GND
GND
B3
GND
GND
GND

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
3.3 4-pin Fan Header (JF01)
There is one 4-pin header for PWM fan, and it is alternative solution that the chassis fan can be
powered and monitored by this backplane instead of motherboard. If the chassis fan is connected
to mainboard, user needs to disable the fan monitoring function of backplane by DIP switch
(SW1).
B4
RP0
Input
Receiver data 0 (+)
B5
RN0
Input
Receiver data 0 (-)
B6
GND
GND
GND
B7
RP2
Input
Receiver data 2 (+)
B8
RN2
Input
Receiver data 2 (-)
B9
GND
GND
GND
C1
GND
GND
GND
C2
SPGIO SDOA
Output
SPGIO data
C3
GND
GND
GND
C4
TP1
Output
Transmitter data 1(+)
C5
TN1
Output
Transmitter data 1(-)
C6
GND
GND
GND
C7
TP3
Output
Transmitter data 3(+)
C8
TN3
Output
Transmitter data 3(-)
C9
GND
GND
GND
D1
NC
NA
NA
D2
GND
GND
GND
D3
GND
GND
GND
D4
TP0
Output
Transmitter data 0 (+)
D5
TN0
Output
Transmitter data 0 (-)
D6
GND
GND
GND
D7
TP2
Output
Transmitter data 2 (+)
D8
TN2
Output
Transmitter data 2 (-)
D9
GND
GND
GND

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Table 6. 4-pin Fan Header
3.4 HDD Access Mode Jumper (JP01)
This jumper allows you to configure HDD access LED and fail LED in two modes. The setting
“HDD access mode” enables that a 3.5” SATA HDD controls the activity LED through the pin 11 of
its SATA power connector. While the setting “SGPIO decode mode” is different, the HDD activity
LED is controlled by side-band SGPIO signals which also support HDD failure, indicated by a solid
red LED for each drive.
Jumper setting
Descriptions
Picture
1-2
HDD access mode
2-3(default)
SGPIO decode mode
Table 7.HDD Access Mode Jumper
Pin No.
Signal Name
Input/output
Signal Name
Picture
1
GND
GND
Power GND
2
V12
PWR
Power +12V
3
Fan_tach
I
FAN Sensor Tachometer
4
Fan_PWM
O
FAN PWM signal to control fan
speed
HDD Status
Blue LED
Green LED
Red
Access Mode
R/W Activity
On
On
N/A
Pin 11 control
Idle
On
Off
Off
Fail
On
Off
On
SGPIO

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Table 8. HDD Status LED Color Code
3.5 4-pin peripheral power connector (CN01and CN02)
These two connectors are used to power four 3.5” hard disks, connected to this backplane, and
each can ensure that all drives are supplied with stable power inputs. If the chassis fan is also
powered by fan header (JF01), this configuration is strongly recommended.
Pin Number
Pin Definition
Input/output
Description
Picture
1
12V
Input
Power +12V
2
GND
GND
Power GND
3
GND
GND
Power GND
4
5V
Input
Power +5V
Table 9. Pin assignment of Power connector
3.6 I2C Connector (JC01), IPMI Compliant
The motherboard can monitor HDD temperature and fan status through this connector. However,
the I2C connector on motherboard side is vendor dependent, so please contact our field
application engineers to fully utilize this feature.
Locate
On
Off
4Hz Blinking
SGPIO
Rebuild
On
Off
1Hz Blinking
SGPIO
PIN-Number
PIN-Define
Input/output
Description
Picture
1
SDA
I/O
I2C Data Signal
(Internal pull high +5V)
2
GND
GND
GND

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Table 10. Pin assignment of I2C connector
3.7 Hardware Monitor Display Pin Header (JP02)
The event LED, with red/black wire, is located on front bezel of SR301+, and can be configured
through this pin header.
Table 11. Event Warning LED and Mute Header
3.8 Hardware Monitor DIP Switch (SW1)
The settings of on-board hardware monitor can be controlled and configured through this DIP
switch. It can manages the functions of PWM fan, temperature threshold, and buzzer alarm.
SW1-1: FAN Control Enable/Disable Setting
If the chassis fan is powered by motherboard, this fan monitoring must be disabled.
3
SCL
Input
I2C Clock Signal
(Internal pull high +5V)
4
+5V
Power
Power +5V to I2C only
(Option)
Pin NO.
Descriptions
Pin NO.
Descriptions
Picture
1
FAIL LED +
2
NC
3
FAIL LED -
4
MUTE SW +
5
KEY PIN
6
MUTE SW -

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Sw1-1
PWM
ON
Enable
OFF
Disable(default)
Table 13.SW1-1: FAN Control Enable/Disable Setting
SW1-2: TEMP Sensor Threshold Setting
The temperature threshold of triggering event warning LED and full fan speed can be
set from this DIP position.
Sw1-2
TEMP
ON
55℃(default)
OFF
65℃
Table 14.SW1-2: TEMP Sensor Threshold Setting
Chapter 4.Technical Support
To quickly answer your technical inquiry, please take note the information shown in the
following sticker label, which can be found on the bottom of chassis inside.
<Need to be replaced>
Next, the detailed system configuration is also helpful to efficiently address the mentioned
issue or duplicate it.
4.1 How to contact us?
There are three ways to submit your technical support inquiry- direct phone call, email and web
site.

4-port 12Gb/s SAS/ SATA Backplane - 80H10230101A0 User Manual
Phone Support
You can quickly reach our regional support engineers from below phone list.
Asia Pacific
EMEA
America
Tel: [phone]
Tel: [phone]
Tel: [phone]
Table 16. Regional phone contact list
Email Support
Please send your technical inquiry to the email box [e-mail], and then our regional
technical support engineers will either reply via email or ring you directly.
Web Support
1. Please visit Chenbro web site http://www.chenbro.com, and then move the mouse cursor to
or touch on tab “Support”.
2. Click on or touch on the item “Technical Support”, and an information window pop-up as
below.
3. Fill up information in each field as detail as possible, and then submit your inquiry.