Chenbro SK33502 Series User manual

SK33502 Series
SK33502 Series
Storage Expansion Kit User Manual
January 2020 Version 1.2
A document provides an overview of product features, functions, architecture, and support specifications.

SK33502 Series
│ 2
DISCLAIMERS
No license (express or implied, by estoppel or otherwise) to any intellectual property rights is granted by this document.
Chenbro disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness
for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or
usage in trade.
This document contains information on products, services and/or processes in development. All information provided here is subject
to change without notice. Contact your Chenbro representative to obtain the latest Configuration Guide.
The products and services described may contain defects or errors known as errata which may cause deviations from published
specifications. Current characterized errata are available on request.
Chenbro, and the Chenbro logo are trademarks of Chenbro Micom Co., Ltd.in the worldwide.
*Other names and brands may be claimed as the property of others
© 2019 Chenbro Micom Co., Ltd.

SK33502 Series
Table of Contents│ 3
Table of Contents
List of Figures................................................................................................................................................4
List of Tables .................................................................................................................................................5
1. Product Overview..........................................................................................................................6
1-1 Front Panel..............................................................................................................................7
1-2 Back Panel...............................................................................................................................8
1-3 Front Control Panel .................................................................................................................9
1-4 System Dimensions ...............................................................................................................10
1-5 System Level Environmental Specifications............................................................................11
1-6 System Packaging.................................................................................................................12
2. Installation and Removal .............................................................................................................13
2-1 Storage Kit Installation...........................................................................................................13
2-2 HDD Tray Installation & Removal ...........................................................................................15
2-3 Storage Kit Fan Module Maintenance ....................................................................................17
3. Backplane....................................................................................................................................19
3-1 Storage Backplane Options....................................................................................................20
3-2 3.5” 12Gbps SAS/SATA Backplane ..........................................................................................21
4. Maintenance and Service ............................................................................................................23

SK33502 Series
List of Figures│ 4
List of Figures
Figure 1 Front panel.................................................................................................................................7
Figure 2 Back panel..................................................................................................................................8
Figure 3 Front control panel.....................................................................................................................9
Figure 4 Chassis dimensions...................................................................................................................10
Figure 5 Storage kit installation-1...........................................................................................................13
Figure 6 Storage kit installation-2...........................................................................................................13
Figure 7 Storage kit installation-3...........................................................................................................14
Figure 8 3.5” HDD installation (screw type) ............................................................................................15
Figure 9 3.5” HDD removal (screw type).................................................................................................15
Figure 10 2.5” HDD/SSD installation (screw type).....................................................................................16
Figure 11 2.5” HDD/SSD removal (screw type) .........................................................................................16
Figure 12 Storage kit fan module installation-1 ........................................................................................17
Figure 13 Storage kit fan module installation-2 ........................................................................................17
Figure 14 Storage kit fan module removal-1.............................................................................................18
Figure 15 Storage kit fan module removal-2.............................................................................................18
Figure 16 Drive tray LED identification .....................................................................................................19
Figure 17 Backplane front view ................................................................................................................21
Figure 18 Backplane rear view .................................................................................................................22

SK33502 Series
List of Tables│ 5
List of Tables
Table 1 Chenbro SK33502 series specifications.........................................................................................6
Table 2 Front control panel ......................................................................................................................9
Table 3 System environmental specifications summary..........................................................................11
Table 4 System packaging information ...................................................................................................12
Table 5 Product weight information .......................................................................................................12
Table 6 Drive power LED/activity LED behavior ......................................................................................19
Table 7 Backplane specifications ............................................................................................................21
Table 8 Connector and pin header function description .........................................................................22

SK33502 Series
Product Overview│ 6
1. Product Overview
The SK33502 series is designed with standard mounting holes for converting 3 x 5.25" drive bays into 5 x 3.5" SATA hot-swap hard
drive bays. This chapter provides a high-level overview of the system features and available options as support for different storage
configurations within this product series. More details for each major component, feature, or option are provided in the following
chapters.
Table 1 Chenbro SK33502 series specifications
Feature
Description
Dimension
(D x W x H)
218.5 x 146.0 x 127.3 (mm)
8.61" x 5.75" x 5.01"
Drive Bay
5 x 3.5" HDD Tray
Indicator
1 x Power Status, 1 x HDD Status, 1 x System Alarm
Front Control
Alarm Mute, 2 x USB3.0
Cooling Fan
80 x 32 mm (1)
Material
SGCC
Net Weight
2.23kg
Backplane
12Gbps SAS/SATA
Connector (To Drive)
5 x SFF8680
Connector (To Host)
5 x SATA 7-pin
Package Contents
1 x SK33502, 5 x 700 mm SATA Cable, 1 x 600 mm Signal Cable

SK33502 Series
Product Overview│ 7
1-1 Front Panel
Figure 1 Front panel
A. Alarm Mute
B. 3.5” Storage Drive Bay
C. Indicator
D. USB3.0

SK33502 Series
Product Overview│ 8
1-2 Back Panel
Figure 2 Back panel
A. USB Signal Connector
B. SATA 3.0 Connectors
D. Cooling Fan
E. Fan Control Switch
C. Fan Connector F. Power Connector

SK33502 Series
Product Overview│ 9
1-3 Front Control Panel
Figure 3 Front control panel
Table 2 Front control panel
Label
ICON
Indicator, button or connector
A
Alarm Off Switch
B
TemperatureAlarmLED
C
Fan Alarm LED
D
HDD Alarm LED

SK33502 Series
Product Overview│ 10
1-4 System Dimensions
Figure 4 Chassis dimensions

SK33502 Series
Product Overview│ 11
1-5 System Level Environmental Specifications
The following table defines the system level specifications under operating and non-operating environments.
Table 3 System environmental specifications summary
Parameter
Specification
Temperature
Operating
5ºC to 35ºC (41ºF to 95ºF)
Temperature
Non-Operating
-40ºC to 70ºC (-40ºF to 158ºF)
Humidity
Non-Operating
50% to 90%, non-condensing with a maximum wet bulb of 28°C (at temperatures
from 25°C to 35°C)
Unpackaged
Shock
Non-Operating
Trapezoidal, 25 g, velocity change is based on product weight
Unpackaged
Vibration
Operating
5 Hz @ 0.0002 g2/Hz to 350 Hz @ 0.0002 g2/Hz
Input acceleration is 0.26 g RMS
10 minutes per axis for all 3 axes on all samples
Random control limit tolerance is ± 3 dB
Sag & Bow
Non-Operating
Tolerance analysis among rack, rail and chassis
Actual on rack test with EIA Go-NoGo fixture
EMI
Pre-scan
Radiated Emissions
CISPR CLASS A (under 6dB):
30~1000 MHz vertical/horizontal
1G~6G GHz vertical/ horizontal
1G~18G GHz vertical/horizontal
RVI
Operating
HDD class
Class 1: Highest performance, reliability, and data integrity
Class 2: A second tier of performance, reliability, and data integrity
HDD I/O throughput degradation SPEC
Pass/Fail Criteria
No functional failure during test or post-test diagnostics.
Requirement to pass test is based on IOMeter data throughput (in IO’s per
second) expressed as a percent of Test HDD maximum theoretical baseline
performance
Class1: > 90% of baseline for 4K random writes and > 80% of baseline for
128K sequential writes.
Class2: > 85% of baseline for 4K random writes and > 75% of baseline for
128K sequential writes.
Mix: > 80% of baseline for 4K random writes and > 70% of baseline for
128K sequential writes.
Packaged
Vibration
Non-Operating
ISTA (weight over 68 kg, 1B; weight equal or less than 68 kg, 1A)
Packaged
Drop
Non-Operating
Drop height change is based on product weight
Non-palletized product:
Investigation: Test requirement is 6 face drops, 8 corner drops and 12 edge
drops for a total of 26 drops.
Validation: Test requirement is 6 face drops, 2 corner drops and 3 edge
drops for a total of 11 drops.
Palletized product: (Both investigation and validation)
Perform two bottom drops at the specified height, 10 bottom drops at one
half of the specified height.
Perform 4 rotational edge drops (one per edge) at the specified height.

SK33502 Series
Product Overview│ 12
1-6 System Packaging
The original Chenbro packaging, where the storage kit is delivered, is designed to provide protection to a fully configured chassis
and tested to meet ISTA (International Safe Transit Association) Test Procedure 1A (2008). The packaging is also designed to be reused
for shipment after system integration has been completed.
The original packaging includes the shipping box, and various protective inner packaging components, which are designed to function
together as a protective packaging system. When reused, all of the original packaging material must be used, including box and each
inner packaging component. In addition, all inner packaging components MUST be reinstalled in the proper location to ensure
adequate protection of the system for subsequent shipment.
Table 4 System packaging information
Part Number
Single/Bulk
Form Factor (mm)
Support Level
387-33502-5402A0
Single
N/A
Stand Alone
NOTE: The design of the inner packaging components does not prevent improper placement within the packaging assembly.
There is only one correct packaging assembly that will allow the package to meet the ISTA (International Safe Transit Association)
Test Procedure 1A (2008). Failure to follow the specified packaging assembly instructions may result in damage to the system
during shipment.
Table 5 Product weight information
Product
Unpackaged Net Weight
（kg）
Packaged Gross Weight
（kg）
Unpackaged Net Weight
(lb)
Packaged Gross Weight
(lb)
SK33502 series
2.23
N/A
4.92
N/A

SK33502 Series
Installation and Removal│ 13
2. Installation and Removal
SK33502 series supports up to 5 x 3.5” hot-swap SAS/SATA HDD, with additional cooling fan module as peripheral component.
2-1 Storage Kit Installation
Figure 5 Storage kit installation-1
Figure 6 Storage kit installation-2

SK33502 Series
Installation and Removal│ 14
Figure 7 Storage kit installation-3
1. Insert the storage kit into the 5.25” 3-bay drive cage.
2. Align the mounting holes and secure with screws as shown.
3. Note: If the system chassis comes with tool-less installation rails for 5.25” bays, secure the storage kit with rails before inserting.

SK33502 Series
Installation and Removal│ 15
2-2 HDD Tray Installation & Removal
Figure 8 3.5” HDD installation (screw type)
1. Align the front of HDD with the anchor point on the tray.
2. Secure 3.5”HDD with tray by four screws as shown.
Figure 9 3.5” HDD removal (screw type)
1. Loosen four screws as shown.
2. Detach the 3.5” HDD from the tray.

SK33502 Series
Installation and Removal│ 16
Figure 10 2.5” HDD/SSD installation (screw type)
1. Align the front of HDD/SSD with the anchor point on the tray.
2. Secure 2.5”HDD/SSD with the tray by four screws from the tray bottom.
Figure 11 2.5” HDD/SSD removal (screw type)
1. Loosen four screws as shown.
2. Detach the HDD/SSD from the tray.

SK33502 Series
Installation and Removal│ 17
2-3 Storage Kit Fan Module Maintenance
Figure 12 Storage kit fan module installation-1
Figure 13 Storage kit fan module installation-2
1. Screw the fan with designated screws on the fan holder as a fan module.
2. Align and press the fan module until it is fully attached on the rear cover.
3. Plug the fan power connector in the backplane as shown.

SK33502 Series
Installation and Removal│ 18
Figure 14 Storage kit fan module removal-1
Figure 15 Storage kit fan module removal-2
1. Unplug the fan power connector.
2. Press and pull the fan module from both sides of the holder until it is detached from the rear cover.
3. Loosen the screws on the fan holder as shown.
4. Replace the fan.

SK33502 Series
Backplane | 19
3. Backplane
Each drive tray includes two LED indicators for drive activity and drive status. Light pipes integrated into the drive tray direct light
emitted from LEDs mounted next to each drive connector on the backplane to the drive tray faceplate, making them visible from the
front of the system.
Figure 16 Drive tray LED identification
Table 6 Drive power LED/activity LED behavior
LED
ICON
LED
Color
Behavior
Condition
A
Power LED
N/A
Stay off
Fault
Blue
Solid on
Present
B
Activity LED
Green
Solid on
Access
Red
Solid on
Failure
1Hz blink
Rebuild
4Hz blink
Locate
NOTE: The drive activity LED is driven by signals from the drive itself. Drive vendors may choose to operate the activity LED
different from what is described in the table above. Should the activity LED on a given drive type behave differently than what
is described, customers should take the drive vendor specifications as a reference for the specific drive model to determine
what the expected drive activity LED operation should be.

SK33502 Series
Backplane | 20
3-1 Storage Backplane Options
SK33502 series supports the below backplanes:
1 x 3.5” 5-port 12Gbps SAS/SATA passive backplane
All available SAS/SATA backplanes include the following common features:
12Gbps SAS and 6Gbps SAS/SATA
29-pin SFF-8680 12Gbps rated drive interface connectors, providing both power and I/O signals to attached devices
Hot-swap support for SAS/SATA devices
I2C interface from a 4-pin connector for device status communication to the BMC over SMBus