InWin W-RS216-07 User manual

Model : IW-RS216-07 Hybrid Backplane User Manual PAGE 1 OF 15
IW-RS216-07 HYBRID BACKPLANE
USER MANUAL
P/N : 2RAKVI008900
Model ：
：：
： IW-RS216-07 3.5” 4BAY HYBRID BACKPLANE-V
MODULE
Version : V1.0

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Revision History
Version Changes Date
V1.0 Official Release 2021/05/25

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TABLE OF CONTENTS
Overview ....................................................................................................... 4
Physical Outlook............................................................................................................... 4
Mechanical ....................................................................................................................... 5
Connector Locations and LED Indicators................................................... 6
Connector/ LED Indicators. ............................................................................................... 6
Connector Pin Definitions.................................................................................................. 7
Hardware Specification................................................................................ 9
LED Behavior.............................................................................................. 10
Disk Bay LED ................................................................................................................. 10
System Alarm LED.......................................................................................................... 11
Smart Fan Control ...................................................................................... 12
Firmware Upgrade...................................................................................... 14

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Overview
InWin backplanes (without Expander) are high performance and cost effective solution for
supporting Intel Purley platform by adding NVMe support.
The passive backplanes support state-of-the-art SAS3 12Gbps HDD/SSD and also backward
compatible with SAS 6Gbps, SATA 6Gps and SATA 3Gps HDD/SSD. The backplane supports
NVMe SSD through OcuLink x4 connectors.
Basically, one single SFF-8643 miniSAS connector can support up to 4 disk bays. 2 of them are
so called Hybrid that further support NVMe SSD via Oculink x4 connectors.
There are four Fan connectors on backplane to support enclosure cooling system. It is
implemented with smart fan control feature to support wide variety of fan modules by auto-
calibrating the installed fan modules at system boot.
Physical Outlook

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Mechanical

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Connector Locations and LED Indicators
No Description No Description
1 Host facing interface : NVME1~NVME4 6 FAN Connector : FAN1~FAN4
2 Host facing interface (SAS3) : CN1 7 M/S BP Selection Switch : S1
3 Firmware Programming Header
： JD1 8 M/S Communication Connector : JB1
4 Main Power Connector
： PW1 9 M058 Micro-controller : IC1
5 M/B Fan Speed Control : JM1 10 System Failure LED indicator : DB2
Connector/ LED Indicators.
Location SAS/U.2 Drive Number
DISK1/ DISK2 SATA/SAS Disk or NVMe SSD #1/#2
DISK3/ DISK4 SATA/SAS Disk or NVMe SSD #3/#4
Location Hard Drive Power/Activity/Failure/Locate LEDs
PD1/PD2/PD3/PD4 DISK1~DISK4 Power LED
D1/D2/D3/D4 DISK1~DISK4 Activity/Failure/Locate LED

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Connector Pin Definitions.
NVME1~NVME4
CN1
PW1 Power 5-Pin Connector
PIN # Definition
1 +12V
2 & 3 Ground
4 +5V
JD1 Firmware Programming Connector
PIN # Definition PIN No# Definition
2 ICE_CLK 1 VCC
4 ICE_DATA 3 #Key
6 ICE_RST 5 Ground

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FAN1~FAN4 FAN 4-Pin Connector
PIN # Definition
1 Ground
2 +12V
4 Tachometer
5 PWM Output
JM1 M/B FSC 3-Pin Connector
PIN # Definition
1 MB_PWM
2 BP_TACH
3 Groubd
S1 M/S Selection Function Description S1 M/S Selection Function Description
00 : BP_MASTER 10 : BP_slave2
01 : BP_slave1 11 : BP_slave3

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Hardware Specification
HOST Facing Interface ： MiniSAS HD/OCulink
DEVICE Facing Interface ： SATA/SAS/NVMe
Indicator ：
Indicator ：
Power LED PD1~PD4: Steady Blue –(When HDD is resent)
Dual color(Green/Red) LED D1~D4 for Hard Disk Drive Status (Activity/Failure/Locate)
Activity LED: Blinking Green (When HDD is Access)
Locate LED : Blinking Red (When HDD Fail or Locate)
Fail LED : Steady Red (When HDD Fail or Locate)
Environment Control :
PWM FAN Connector (FAN1~FAN4) for Cooling system.
Temperature Sensor (RTB1/RTB2) Monitor HDD bay inside temperature.
M/S Link Connector (JB1) for Synchronous signal connection between two backplane.
M/B FSC Connector (JM1) for Fan speed control signal connected between
Motherboard and backplane.
DB2 (RED LED) for Over-temperature and FAN fail indicator.
Connector
SFF-8643 MiniSAS HD Connector (CN1) for Host Facing Interface (SAS3)
SFF-8621 OCULINK Connector (NVME1~NVME4) for Host Facing Interface (NVMe)
SFF-8639 U.2 68PIN Connector (DISK1~DISK4) for SATA/SAS3 Disk or NVMe SSD.
P4.2mm Disk Drive Power Connector*1 (PW1)
JD1 MCU Programming Header for Programming MCU Firmware
S1 DIP Switch for Backplane Master/Slave Selection.

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LED Behavior
Disk Bay LED
Blue LED:
Disk Insertion Indicator –
Turned on whenever disk drive is properly installed.
Green LED:
Activity indicator –
Stay off when idle and blinking (~8 Hz) whenever disk drive is being accessed.
RED LED:
Fail and Locate indicator –
Turned steady on when disk failure occurs. Blinking (1 Hz) when locating Disk, RAID rebuild
and RAID consistent check.
There are 2 parts of LED Management on the backplane. One is for SAS and another is for
NVMe. Please note that the disk slots can only accommodate SAS/SATA or NVMe disk at a
time since they share the same disk connector.
For SAS application, The LEDs behave by following SGPIO signal coming through
sideband bus inside the SFF-8643 cables. Please refer to Section 2 for SGPIO settings.
When SGPIO Jumper setting is enabled the LEDs behave according to the SGPIO signals.
When SGPIO is disabled, the RED LEDs (for Locate and Fail) do not behave while the
GREEN LEDs (for Activity) behave according to the signal from P11 (READY LED) of the
disk connectors.

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For NVMe application, The LEDs behave according to the VPP over I2C signals from NVMe
host controllers through sideband bus of Oculink or SlimSAS cables. Whenever the NVMe
host controller support VPP over I2C, the RED LEDs behave Locate, Fail and Rebuild
signals following VPP signals on the I2C bus. The Green LEDs (for Activity) behave
according to the signal from P11 (Activity) of the disk connectors.
Examples of NVMe connections to Broadcom RAID/HBA controller. Each pair of VPP over
I2C signal supports 2 pieces of NVMe disks LED management. The I2C bus is leaded to
odd-number NVMe connector (Oculink or SlimSAS) to manage its corresponding and the
following NVMe disks. For example, NVMe1 and NVMe2 LED management signal is form
NVMe1 connector’s sideband I2C bus, NVMe3 and NVMe4 LED management signal is
from NVMe3 connector’s sideband I2C bus and …etc.
System Alarm LED
There is a FAIL LED (DB2) design on the Backplane to indicate Fan Fail and Over-
Temperature for indicating system fault.

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Fan Fail:
When any fan module RPM is lower than 75% of the expected speed the Fan Fail is
triggered and the Fail LED blinks in 0.5Hz rate. Goes off when the issue is resolved or
disappeared.
Overheat:
When the system temperature at the backplane area is going beyond 45 °C the Temp Fail
triggered and Fail LED blinks in 2Hz rate. Goes off when temperature is going under 45 °C.
Overheat & Fan Fail:
Fail LED stays steady on when both events triggered at the same time.
Smart Fan Control
InWin’s Backplane is implemented Smart Fan Control feature by automatically detecting the
existences of the Fan Modules and intelligently control the Fan RPM per the system
temperature being detected by two thermal sensors (RTB1/RTB2) on the backplane.
Thanks to Smart Fan Control feature the Fan connectors (FAN1/FAN2/FAN3/FAN4) on
backplane support wide variety of PWM driven Fan modules being used in the enclosure.
How it works?
1. Fan module auto-calibration triggered in every system boot. The thermal profile would
then be recorded and used until next reboot.
2. Backplane starts fan calibration and calculates the corresponding PWM duty cycle for
each level. There are totally 8 speed levels to be sensed and used until next system boot.
3. The 8 levels of fan speed are mapped to the temperature readings detected by thermistor

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spreading from 25 to 45 °C in 3.75 degree C step.
4. In normal operation, when the system temperature changes to next level, the fan module
would change speed accordingly. And, the Fan failure alarm would be triggered when the
RPM of the Fan module is dropped lower than 75% of its expected speed.
5. The fan module calibration and thermal profile are as below.
6. When an external PWM source joins, the output PWM duty is determined by comparing
the internal calculated PWM and external PWM and then select whichever is higher as
the output PWM to the fan modules.

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Firmware Upgrade
The passive backplanes are planted Nuvoton M058 series MCUs for hosting disk LED
indication, Fan speed control and system fail alarm. These MCUs are preprogrammed in
manufacturing. In most cases, the MCUs are not required to reprogram unless there is issue
needed to fix.
How to upgrade firmware?
1. Require Nuvoton ARM Cortex-M0 programming tool. Nu-Me or Nu-Link and install
Nuvoton ICP Programming tool software.
2. Connect Nu-Link USB end to a host and the SWD end to Backplane ICE connector for
each MCU.

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3. Make sure device is connected and select the binary file being programmed and then
click on Start button to program firmware.
4. Please refer to http://www.nuvoton.com/resource-
files/NuLink_Adapter_User_Manual_EN_V1.01.pdf for more details.