Chenbro SR105 Plus Series User manual

SR105 Plus Series
Server Chassis User Manual
January 2020 Version 2.3
A document provides an overview of product features, functions, architecture, and support specifications.

SR105 Plus Series
DISCLAIMERS
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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.

SR105 Plus Series
Table of Contents
Table of Contents..........................................................................................................................................3
List of Figures................................................................................................................................................4
List of Tables.................................................................................................................................................5
1. Product Overview..............................................................................................................................6
1-1 Front Panel..................................................................................................................................7
1-2 Back Panel...................................................................................................................................8
1-3 Security Features.........................................................................................................................9
1-4 Front Control Panel ...................................................................................................................10
1-5 Chassis Dimensions ...................................................................................................................11
1-6 Interior View .............................................................................................................................12
1-7 System Level Environmental Specifications................................................................................13
1-8 System Packaging.....................................................................................................................14
2. System Components Installation and Removal ................................................................................15
2-1 Side Cover Installation ...............................................................................................................15
2-2 Front Bezel Installation ..............................................................................................................16
2-3 5.25” Device Installation............................................................................................................17
2-4 HDD Cage Installation................................................................................................................19
2-5 Optional Fan (Add-In-Card Area) Installation..............................................................................24
2-6 Rear Fan Maintenance...............................................................................................................25
2-7 Power Supply Installation ..........................................................................................................26
3. Backplane .......................................................................................................................................27
3-1 Storage Backplane Options........................................................................................................28
3-2 3.5” 4-Port 12Gbps Mini-SAS HD Backplane...............................................................................29
3-3 3.5” 4-Port 12Gbps SAS/SATA Backplane....................................................................................32
4. Maintenance and Service ................................................................................................................35

SR105 Plus Series
List of Figures
Figure 1 Front panel (enclosed)................................................................................................................7
Figure 2 Front panel (open)......................................................................................................................7
Figure 3 Back panel with redundant PSU..................................................................................................8
Figure 4 Back panel with single PSU .........................................................................................................8
Figure 5 Key lock and Kensington slot location .........................................................................................9
Figure 6 Intrusion switch location ............................................................................................................9
Figure 7 Front control panel...................................................................................................................10
Figure 8 Front control panel...................................................................................................................10
Figure 9 Chassis dimensions...................................................................................................................11
Figure 10 Chassis components .................................................................................................................12
Figure 11 Side cover installation...............................................................................................................15
Figure 12 Bezel installation ......................................................................................................................16
Figure 13 Bezel removal...........................................................................................................................16
Figure 14 5.25” device blank removal ......................................................................................................17
Figure 15 5.25” device side rail installation ..............................................................................................17
Figure 16 5.25” device installation ...........................................................................................................18
Figure 17 3.5” internal HDD cage installation ...........................................................................................19
Figure 18 3.5” hot-swap HDD cage installation.........................................................................................19
Figure 19 3.5” hot-swap HDD cage fan maintenance step-1 .....................................................................20
Figure 20 3.5” hot-swap HDD cage fan maintenance step-2 .....................................................................20
Figure 21 3.5” hot-swap HDD tray removal ..............................................................................................21
Figure 22 3.5” hot-swap HDD tray installation..........................................................................................21
Figure 23 3.5” HDD installation (tool-less type)........................................................................................22
Figure 24 3.5” HDD installation (screw type)............................................................................................22
Figure 25 2.5” HDD installation (screw type)............................................................................................23
Figure 26 Optional fan installation ...........................................................................................................24
Figure 27 Optional fan removal................................................................................................................24
Figure 28 Rear fan maintenance step-1....................................................................................................25
Figure 29 Rear fan maintenance step-2....................................................................................................25
Figure 30 Single PSU installation ..............................................................................................................26
Figure 31 Redundant PSU installation ......................................................................................................26
Figure 32 Drive tray LED identification .....................................................................................................27
Figure 33 Backplane front view................................................................................................................29
Figure 34 Backplane rear view .................................................................................................................30
Figure 35 Backplane front view................................................................................................................33
Figure 36 Backplane rear view .................................................................................................................33

SR105 Plus Series
List of Tables
Table 1 Chenbro SR105 Plus specifications ...............................................................................................6
Table 2 Front control panel ....................................................................................................................10
Table 3 System environmental specifications summary..........................................................................13
Table 4 System packing information.......................................................................................................14
Table 5 Product weight information .......................................................................................................14
Table 6 Drive power LED/activity LED behavior ......................................................................................27
Table 7 Backplane specifications ............................................................................................................29
Table 8 Connector and pin header function description .........................................................................30
Table 9 Backplane specifications ............................................................................................................32
Table 10 Connector and pin header function description .........................................................................34

SR105 Plus Series
1. Product Overview
The SR105 chassis has been modified to support both tool-less 3.5” HDD tray and PCIe 3.0 slot, and transformed into feature-
advanced SR105 Plus. Beneath the chassis, an information sticker reads revision and manufacturing code, necessary for technical
support.
Table 1 Chenbro SR105 Plus specifications
Feature
Description
MB Form Factor
SSI EEB (12” x 13”)
Dimension
(Dx W x H)
533.0 x 198.0 x 425.0 (mm)
20.98” x 7.80” x 16.73” (w/o bezel)
Drive Bay
3 x 5.25" External, 4 x 3.5" Hot-swap (Option), 4 x 3.5” Internal (Option)
Storage Backplane
1 x 3.5" 4-port 12Gbps Mini-SAS HD Passive Backplane
1 x 3.5" 4-port 12Gbps SAS/SATA Passive Backplane
PSU Form Factor
PS/2 Single or N+1 Redundant
Indicator
1 x Power Status, 2 x LAN Activity, 1 x HDD Status, 1 x System Alarm
Front Control
1 x Power On/Off, 1 x System Reset, 1 x Alarm Mute, 2 x USB2.0/USB3.0 (Option)
Cooling Fan
HDD Cage: 80 x 25 mm (1), PCI: 80 x 25 mm (1) (Option), Rear: 120 x 25 mm (1)
System Security
Intrusion Switch, Key Lock, Kensington Slot
Expansion Slot Opening
7 x Full Height (5 x Full Length + 2 x Half Length)
Net Weight
9.0 kg/19.82 lb
Gross Weight
11.0 kg/24.23 lb
Cubic Feet
3.31
Container Loading
20’: 315, 40’: 651, 40’H: 720 (Single Packing)
Slide Rail
Supported

SR105 Plus Series
1-1 Front Panel
Figure 1 Front panel (enclosed)
A. 5.25” Storage Drive Bay
B. Front Control Panel
C. USB Port Blank
Figure 2 Front panel (open)
A. Bezel Door
B. 3.5” Storage Drive Bay
C. Front Control Panel
D. USB3.0

SR105 Plus Series
1-2 Back Panel
Figure 3 Back panel with redundant PSU
A. 1+1 Redundant PSU
B. Rear I/O
C. Rear Fan
D. Expansion Slot Opening
Figure 4 Back panel with single PSU
A. PS/2 Single PSU
B. Rear I/O
C. Rear Fan
D. Expansion Slot Opening

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1-3 Security Features
Figure 5 Key lock and Kensington slot location
Figure 6 Intrusion switch location
A. Key Lock
B. Side Cover Lock
C. Kensington Slot
D. Intrusion Switch

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1-4 Front Control Panel
Figure 7 Front control panel
Figure 8 Front control panel
Table 2 Front control panel
Label
ICON
Indicator, button or connector
A
Power Button
B
LAN1, LAN2ActivityLED
C
Power LED
D
HDDActivityLED
E
FanAlarm LED
F
SystemReset Button
G
FanAlarm ResetButton

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1-5 Chassis Dimensions
Figure 9 Chassis dimensions

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1-6 Interior View
Figure 10 Chassis components
A. 3.5” HDD Cage
B. Power Supply Unit
C. Fan Assembly (HDD Cage)
D. 5.25” Storage Drive Bay
E. PCIe Fan (Option)
F. System Board

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1-7 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
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 6 dB):
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

SR105 Plus Series
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1-8 System Packaging
The original Chenbro packaging, where the server system is delivered, is designed to provide protection to a fully configured system
and tested to meet ISTA (International Safe Transit Association) Test Procedure 1A. 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 packing information
Part Number
Single/Bulk
Form Factor (mm)
Support Level
387-10569-2100A0
Single
315 x 651 x 720
L5
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
NOTE: A L5 system does not include motherboards, processors, memory, drives, or add-in cards. It is the system
configuration as shipped from Chenbro. Weights of integrated system (system configurations that include the items
above) will vary depending on the final system configuration.
Product
Unpackaged Net Weight
（kg）
Packaged Gross Weight
（kg）
Unpackaged Net Weight
(lb)
Packaged Gross Weight
(lb)
SR105 Plus
9.0
11.0 19.82
24.23

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2. System Components Installation and Removal
SR105 Plus supports up to 4 x 3.5” hot-swap SAS/SATA HDD or 4 x 3.5” Internal SAS/SATA HDD. Support for different storage and
peripheral options will vary depending on the system model and/or available accessory options installed.
2-1 Side Cover Installation
Figure 11 Side cover installation
1. Insert the cover along the bottom grooves.
2. Place down the cover toward the chassis.
3. Secure the thumb screws on the top and bottom of chassis.

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2-2 Front Bezel Installation
Figure 12 Bezel installation
1. Lean the right side of the bezel on the front chassis.
2. Fully attach the bezel on the front of the chassis, and make sure the two internal latches are up.
3. Push down the bezel until it is secured.
Figure 13 Bezel removal
1. Lift the two internal latches up.
2. Detach the bezel tabs and remove the bezel.

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2-3 5.25” Device Installation
Figure 14 5.25” device blank removal
1. Press two sides of the latch of the blank to release the blank as shown.
2. Pull the blank out.
Figure 15 5.25” device side rail installation
1. Take the reserved side rails located inside the drive slot.
2. Attach and secure the side railson both sides of the 5.25” device.

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Figure 16 5.25” device installation
1. Insert the 5.25”device into the drive bay.
Note: Make sure both side rails are clipped on the latch.

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│ 19
2-4 HDD Cage Installation
Figure 17 3.5” internal HDD cage installation
1. Insert the fan into the reserved slot.
2. Insert the HDD cage into the chassis.
3. Secure the thumb screws on the four sides of the HDD cage.
4. Plug the fan power connector in the system board.
Figure 18 3.5” hot-swap HDD cage installation
1. Insert the HDD cage into the chassis.
2. Secure the thumb screws on the four sides of the HDD cage.

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│ 20
Figure 19 3.5” hot-swap HDD cage fan maintenance step-1
Figure 20 3.5” hot-swap HDD cage fan maintenance step-2
1. Unplug the power connector from the backplane.
2. Release the fan module latch and pull the fan module out of the fan cage.
3. Remove the tool-less fan holder as shown and replace the fan.
4. Insert the fan module into the fan cage.
5. Make sure the power connector go through the hole on the other side of the fan cage.
6. Plug the power connector in the backplane.