Avalue Technology SID-21WR2 User manual

Part No. E2017R221A0R
SID-21WR2
21.5” Panel PC with Rockchip RK3568
Quick Reference Guide
1st Ed –31 January 2023
Copyright Notice
Copyright 2023 Avalue Technology Inc., ALL RIGHTS RESERVED.

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FCC Statement
Federal Communication Commission Interference Statement
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE
FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT
MAY CAUSE UNDESIRED OPERATION.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction, may cause
harmful interference to radio communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
Notice:
(1) A Unshielded-type power cord is required in order to meet FCC emission limits and also to prevent
interference to the nearby radio and television reception. It is essential that only the supplied
power cord by used.
(2) Use only shielded cables to connect I/O devices to this equipment.
(3) Changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.

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FCC RF Radiation Exposure Statement
This Wireless LAN radio device has been evaluated under FCC Bulletin OET 65 and found compliant
to the requirements as set forth in CFR 47 Sections 2.1091, 2.1093, and 15.247 (b) (4) addressing RF
Exposure from radio frequency devices. The radiated output power of this Wireless LAN device is far
below the FCC radio frequency exposure limits. Nevertheless, this device shall be used in such a
manner that the potential for human contact during normal operation is minimized. When nearby
persons has to be kept to ensure RF exposure compliance, in order to comply with RF exposure limits
established in the ANSI C95.1 standards, the distance between the antennas and the user should not
be less than 20 cm.
WARNING
“CAUTION –Use suitable mounting apparatus to avoid risk of injury.”
“CAUTION - Use a power cord that matches the voltage of the power outlet, which has been
approved and complies with the safety standard of your particular country.”
“WARNING –To avoid risk of electric shock, this equipment must only be connected to a supply
mains with protective earth.”
Notice
This guide is designed for experienced users to setup the system within the shortest time.
For detailed information, please always refer to the electronic user's manual.
Copyright Notice
Copyright 2023 Avalue Technology Inc., ALL RIGHTS RESERVED.
No part of this document may be reproduced, copied, translated, or transmitted in any form
or by any means, electronic or mechanical, for any purpose, without the prior written
permission of the original manufacturer.
Trademark Acknowledgement
Brand and product names are trademarks or registered trademarks of their respective
owners.
Disclaimer
Avalue Technology Inc. reserves the right to make changes, without notice, to any product,
including circuits and/or software described or contained in this manual in order to improve
design and/or performance. Avalue Technology assumes no responsibility or liability for the
use of the described product(s), conveys no license or title under any patent, copyright, or
masks work rights to these products, and makes no representations or warranties that

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these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified. Applications that are described in this manual are for illustration
purposes only. Avalue Technology Inc. makes no representation or warranty that such
application will be suitable for the specified use without further testing or modification.
Life Support Policy
Avalue Technology’s PRODUCTS ARE NOT FOR USE AS CRITICAL COMPONENTS IN
LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE PRIOR WRITTEN APPROVAL
OF Avalue Technology Inc.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into body, or (b) support or sustain life and whose failure to perform,
when properly used in accordance with instructions for use provided in the labeling, can
be reasonably expected to result in significant injury to the user.
2. A critical component is any component of a life support device or system whose
failure to perform can be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or effectiveness.
A Message to the Customer
Avalue Customer Services
Each and every Avalue’s product is built to the most exacting specifications to ensure
reliable performance in the harsh and demanding conditions typical of industrial
environments. Whether your new Avalue device is destined for the laboratory or the factory
floor, you can be assured that your product will provide the reliability and ease of operation
for which the name Avalue has come to be known.
Your satisfaction is our primary concern. Here is a guide to Avalue’s customer services. To
ensure you get the full benefit of our services, please follow the instructions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions, you can
easily find answers in your product documentation. These answers are normally a lot more
detailed than the ones we can give over the phone. So please consult the user’s manual
first.
To receive the latest version of the user’s manual; please visit our Web site at:
http://www.avalue.com.tw/

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Content
1. Getting Started............................................................................................................6
1.1 Safety Precautions ................................................................................................6
1.2 Packing List...........................................................................................................6
1.3 System Specifications ...........................................................................................7
1.4 System Overview.................................................................................................10
1.4.1 Front View.................................................................................................................................. 10
1.4.2 Rear View................................................................................................................................... 10
1.5 System Dimensions.............................................................................................11
2. Hardware Configuration...........................................................................................12
2.1 SID-21WR2 connector mapping..........................................................................13
2.1.1 Serial port connector (COM)...................................................................................................... 13
2.1.2 Serial port connector (COM)...................................................................................................... 13
2.1.3 RJ-45 Ethernet connector (LAN) ............................................................................................... 14
2.1.4 HDMI connector (HDMI) ............................................................................................................ 14
2.1.5 USB3.0 connector (USB3.0)...................................................................................................... 15

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1. Getting Started
1.1 Safety Precautions
Warning!
Always completely disconnect the power cord from your
chassis whenever you work with the hardware. Do not
make connections while the power is on. Sensitive
electronic components can be damaged by sudden power
surges. Only experienced electronics personnel should
open the PC chassis.
Caution!
Always ground yourself to remove any static charge before
touching the CPU card. Modern electronic devices are very
sensitive to static electric charges. As a safety precaution,
use a grounding wrist strap at all times. Place all electronic
components in a static-dissipative surface or static-shielded
bag when they are not in the chassis.
1.2 Packing List
1 x SID-21WR2 Panel PC
1 x AC 60W Adapter
1 x Power cord
2 x WiFi Antenna
4 x Screw-Flat M4* 4mm

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1.3 System Specifications
Component
Mother Board
ACP-RK3568
CPU
RK3568_Quad-core Cortex-A55 up to 2.0GHz_ Mali-G52 GPU
Memory
2GB DDR4 on board
Power Supply
DC in
Adapter
FSP AC/DC adapter 12V/5A 90 Screw Type
Wireless LAN
AW-CM276NF_ac/a/b/g/n_2x2
Bluetooth
5.0
Speaker
4ohm / 2W (Optional)
speaker:E175X203700R*2
cable:E170X080050R*1
Out-Of-Band
Service Enabler
1x OOB Module (Optional)
Operating System
Android 11, Debian 10
Storage
Other Storage
Device
32GB eMMC
Panel
LCD Panel
M215HJJ-L30 (LVDS)
Resolution
1920 x 1080
Touch Screen
21.5” Sense ST-215C16D-N-AD
Touch Controller
EETI 84H5680
External I/O
DC in Power jack
JDCIN1: Power Jack_90D
Pwr-in 12V~24V
HDMI Port
JHDMI1: HDMI Port_90D
USB Port
JUSB1: USB Type A Host (3.0)_90D
JUSB2: USB Type A Host (3.0)_90D
Lan Port
JLAN1: 10/100/1000 Lan port_90D
Audio Port
JHP1: Headphone Jack_90D
Reset button
Reset button_90D
COM Port
1 x DB9 for RS-232
1 x DB9 for RS-485
Mechanical
Power Type
12V~24V wide voltage DC input
Power Connector
DC jack

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Type
Dimension
535.34x329.31x48.1 mm
Weight
9.2 kg
Color
Metallic
Fanless
Yes
OS Support
Androd 11 / Debian 10
Reliability
EMI Test
CE
FCC class B
RED
Safety
2014/35/EU EN 62368-1: 2014+A11: 2017 (Second Edition)
Low Voltage Directive
Dust and Rain Test
1. PSD: 0.00454G²/Hz , 1.5 Grms
2. Operation mode
3. Test Frequency : 5-500Hz
4. Test Axis : X,Y and Z axis
5. 30 minutes per each axis
6. IEC 60068-2-64 Test:Fh
7. Storage : CF or SSD
Random Vibration
Test
Test Standard: Reference IEC60068-2-64 Testing procedures
1. System condition: Operation mode
2. PSD: 0.00454G²/Hz , 1.5 Grms
3. Test Frequency : 5-500Hz
4. Test Axis : X,Y and Z axis
5. Test time: 30 minutes per each axis
Storage : eMMC
Sine Vibration Test
(Non-operation)
1. Test Standard: Reference IEC60068-2-6 Testing procedures
2. System condition : Non-Operating mode
3. Test Acceleration : 2G
4. Test frequency : 5~500 Hz
5. Sweep：1 Oct/ per one minute. (logarithmic)
6. Test Axis : X,Y and Z axis
Test time :30 min. each axis
Package vibration
test
1. PSD: 0.026G²/Hz , 2.16 Grms
2. Non-operation mode
3. Test Frequency : 5-500Hz
4. Test Axis : X,Y and Z axis
5. 30 min. per each axis
6. IEC 60068-2-64 Test:Fh
Mechanical Shock
1. PSD: 0.026G²/Hz , 2.16 Grms

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Test
2. Non-operation mode
3. Test Frequency : 5-500Hz
4. Test Axis : X,Y and Z axis
5. 30 min. per each axis
6. IEC 60068-2-64 Test:Fh
Drop Test
1. Wave form：Half Sine wave
2. Acceleration Rate：10g for operation mode
3. Duration Time：11ms
4. No. of Shock：Z axis 300 times
5. Test Axis: Z axis
6. Operation mode
7. Reference IEC 60068-2-29 Testing procedures Test Eb : Bump Test
Operating
Temperature
0°C ~ 40°C (32°F ~ 104°F)
Storage
Temperature
-20°C ~ 60°C (-4°F ~ 140°F)
Operating
Humidity
40°C @ 95% Relative Humidity, Non-condensing
Note: Specifications are subject to change without notice.

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1.4 System Overview
1.4.1 Front View
1.4.2 Rear View
Connectors
Label
Function
Note
Line out
Audio line-out connector
Head phone jack
HDMI
HDMI connector
USB3.0
2 x USB3.0 connector
USB type A
DCIN
DC power-in connector
DC jack
LAN
RJ-45 Ethernet connector
COM
2 x Serial port connector
1 x DB9 for RS-232
1 x DB9 for RS-485
RESET
Reset button

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1.5 System Dimensions
(Unit: mm)

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2.Hardware
Configuration
Note: If you need more information, please visit our website:
http://www.avalue.com.tw

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2.1 SID-21WR2 connector mapping
2.1.1 Serial port connector (COM)
RS-232
Signal
PIN
PIN
Signal
NC
1
6
NC
RX
2
7
RTS
TX
3
8
CTS
NC
4
9
NC
GND
5
2.1.2 Serial port connector (COM)
RS-485
Signal
PIN
PIN
Signal
DATA-
1
6
NC
DATA+
2
7
NC
NC
3
8
NC
NC
4
9
NC
GND
5

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2.1.3 RJ-45 Ethernet connector (LAN)
Signal
PIN
LAN_MDI0+
1
LAN_MDI0-
2
LAN_MDI1+
3
LAN_MDI2+
4
LAN_MDI2-
5
LAN_MDI1-
6
LAN_MDI3+
7
LAN_MDI3-
8
2.1.4 HDMI connector (HDMI)
Signal
PIN
PIN
Signal
HDMI_P2
1
2
GND
HDMI_N2
3
4
HDMI_P1
GND
5
6
HDMI_N1
HDMI_P0
7
8
GND
HDMI_N0
9
10
HDMI_CLKP
GND
11
12
HDMI_CLKN
NC
13
14
NC
HDMI_CTRL_CLK
15
16
HDMI_CTRL_DAT
GND
17
18
5V
HPD
19

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2.1.5 USB3.0 connector (USB3.0)
Signal
PIN
VCC
1
Data-
2
Data+
3
GND
4